cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Born-Infeld Lagrangian using Cayley-Dickson algebras
Creators: name: Kuwata, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We rewrite the Born-Infeld Lagrangian, which is originally given by the determinant of a $4 \times 4$ matrix composed of the metric tensor $g$ and the field strength tensor $F$, using the determinant of a $(4 \cdot 2^n) \times (4 \cdot 2^n)$ matrix $H_{4 \cdot 2^{n}}$. If the elements of $H_{4 \cdot 2^{n}}$ are given by the linear combination of $g$ and $F$, it is found, based on the representation matrix for the multiplication operator of the Cayley-Dickson algebras, that $H_{4 \cdot 2^{n}}$ is distinguished by a single parameter, where distinguished matrices are not similar matrices. We also give a reasonable condition to fix the paramete
Eigenvalue Spectrum of a Dirac Particle in Static and Spherical Complex Potential
Creators: name: Saaidi, Khaled
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has been observed that a quantum theory need not to be Hermitian to have a real spectrum. We study the non-Hermitian relativistic quantum theories for many complex potentials, and we obtain the real relativistic energy eigenvalues and corresponding eigenfunctions of a Dirac charged particle in complex static and spherically symmetric potentials. Complex Dirac-Eckart, complex Dirac-Rosen-Morse II, complex Dirac-Scarf and complex Dirac-Poschl-Teller potential are investigated.
description: 9 pages, no fiugres, latex
Supersymmetric Proton Decay Revisited
Creators: name: Ellis, John
name: Evans, Jason L.
name: Nagata, Natsumi
name: Olive, Keith A.
name: Velasco-Sevilla, Liliana
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Encouraged by the advent of a new generation of underground detectors---JUNO, DUNE and Hyper-Kamiokande---that are projected to improve significantly on the present sensitivities to various baryon decay modes, we revisit baryon decay in the minimal supersymmetric SU(5) GUT. We discuss the phenomenological uncertainties associated with hadronic matrix elements and the value of the strong coupling $α_s$---which are the most important---the weak mixing angle $θ_W$, quark masses including one-loop renormalization effects, quark mixing and novel GUT phases that are not visible in electroweak interaction processes. We apply our analysis to a variety of CMSSM, super- and sub-GUT scenarios in which soft supersymmetry-breaking parameters are assumed to be universal at, above and below the GUT scale, respectively. In many cases, we find that the next generation of underground detectors should be able to probe models with sparticle masses that are ${\cal O}(10)$~TeV, beyond the reach of the LHC.
description: 53 pages, 17 figures
M.Tech Thesis.pdf
Creators: name: Sucharita Khuntia
Publisher: name: figshare
Year: 2021
Subjects: subject: 80607 Information Engineering and Theory
subject: FOS: Computer and information sciences

description: Cloud offers flexible and cost effective storage for big data but the major challenge is access control of big data processing. CP-ABE is a desirable solution for data access control in cloud. However, in CP-ABE the access policy may leak user’s private information. To address this issue, Hidden Policy CP-ABE schemes proposed but those schemes still causing data leakage problem because the access policies are partially hidden and create more computational cost. In this paper, we propose a New Hidden Policy Ciphertext Policy Attribute Based Encryption (HP-CP-ABE) to ensure Big Data Access Control with Privacy-preserving Policy in Cloud. In proposed method, we used Multi Secret Sharing Scheme(MSSS) to reduce the computational overhead, while encryption and decryption process. We also applied mask technique on each attribute in access policy and embed the access policy in ciphertext, to protect user’s private information from access policy. The security analysis shows that HP-CP-ABE is more secure and preserve the access policy privacy. Performance evaluation shows that our schemes takes less computational cost than existing scheme.
Mecistocephalus insularis
Creators: name: Published, First
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Mecistocephalidae
Mecistocephalus
Mecistocephalus insularis

description: Mecistocephalus insularis (Lucas, 1863)
This species was described from ‘Ile de la Réunion’, in the Mascarene Islands, and subsequently recorded by different authors from a large tropical range, including south­eastern Asia and Taiwan (Wang, 1959).
 The identity of this species and its actual distribution are however uncertain (see Bonato & Minelli, 2004) and our ongoing investigations suggest that M. insularis may be limited to the islands of the western Indian Ocean and the southern Arabian Peninsula. The record from Taiwan is probably due to the misidentification of specimens belonging to a different species. In particular, M. changi, from Taiwan, is similar to specimens from Arabian Peninsula possibly belonging to M. insularis, from which it distinctly differs only for its higher clypeal ratio.
description: Published as part of Published, First, 2007, The Mecistocephalidae of the Japanese and Taiwanese islands (Chilopoda: Geophilomorpha), pp. 1-84 in Zootaxa 1396 on page 71
Trade Implications of soybean policies
Creators: name: Christina-Tsigas, Eleni
name: Langley, Suchada
name: Christina-Tsigas, Eleni
name: Langley, Suchada
Publisher: name: Unknown
Year: 1995
Subjects: Crop Production/Industries
International Relations/Trade

description: We analyze domestic and border policies for soybeans in Brazil, Argentina, and the EU with an econometric trade model which has five regions: the US, Brazil, Argentina, the European Union, and a Rest-of-the-World; and three commodities: soybeans, soymeal, and soy oil. Prices for domestic agents are linked to world prices via policy equations that reflect wedges due to producer subsidies in the EU, and export taxes for Brazil and Argentina. We found that the US benefits from existing (i.e., as of 1990) policies in Brazil and Argentina. The European Union, however, loses from existing policies in Brazil and Argentina. The US and Argentina lose from producer subsidies in the European Union. Brazil, however, gains from producer subsidies in the European Union.
Sustainable development education in the context of the 2030 Agenda for sustainable development
Creators: name: K. Shulla
name: W. Leal Filho
name: S. Lardjane
name: J. H. Sommer
name: C. Borgemeister
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Education for Sustainable Development (ESD) is a concept that evolves in line with emerging sustainability issues. In the 2030 Agenda for Sustainable Development, ESD is embraced in Goal 4, Target 4.7, and reflected in other Goals and Targets. The approach towards the 2030 Agenda is important, not only because of the crucial role that education will play in the implementation of the Goals, but also in increasing its impact by orienting towards the emerging sustainability challenges. Therefore, there is a high demand for research to better understand ESD interactions with the 2030 Agenda framework in specific contexts. This study addresses the implications of Target 4.7 on the 17 Sustainable Development Goals, in the context of the Regional Centres of Expertise on Education for Sustainable Development as global multi-stakeholder networks. It analyses the interaction of Target 4.7 with other Goals and Targets, in order to identify the strongest connections amongst thematic sustainability issues. The findings revealed through statistical analyses and a comprehensive literature review, that the prevailing components of ESD are strongly interconnected with Goals 2, 3, 4, 7, 11, 12, 13, 15. Thus reinforcing that the multidimensional aspects of ESD in relation to the SDGs are stronger regarding the current complex issues such as, education, climate, energy, sustainable cities, natural habitat, consumption and production. Although the nature of multi-stakeholder networks allows for diverse approaches of ESD towards the 2030 Agenda, the study indicates the importance of partnership and informal learning for reflection of global sustainability issues in regional platforms.
(Machine) Learning on open datasets
Creators: name: Santarsieri, Giulia
Publisher: name: Zenodo
Year: 2021
Subjects: machine learning
open data

description: Today, open data platforms host a wide and heterogeneous catalog of datasets. However, these datasets are often neglected in Machine Learning (ML) and other related tasks. This mainly happens because there are few available open data catalogs specialized in ML applications and because it is often unclear whether Machine Learning algorithms would be adequate and well performing on such datasets. Therefore, several open datasets go unused while they could be leveraged by the ML community to explain, evaluate, and challenge existing methods on real open data. For instance, these real-world data could be used by professors teaching ML courses, by students taking these courses, by researchers testing current and novel ML approaches, and possibly to promote the intersection of open data, ML and public policy. In this talk we will show you how we are tackling this issue working on datasets from data.gouv.fr (DGF), the French open data government platform. We aim to answer the question of what makes a dataset suitable and well performing for Machine Learning tasks by leveraging open source tools. Our goal is to establish a first small empirical assessment of the characteristics of a dataset (size, balance of its categorical variables and so on) that make it a “good fit” for Machine Learning algorithms. Specifically, we first manually select an adequate subset of datasets from DGF. Then we perform a statistic profiling on each of these datasets. Thirdly, we automatically train and validate a set of ML algorithms on them and we cluster the datasets according to their evaluation results. These steps help us to better understand the nature of each dataset and thus determine which ones seem suitable for ML applications. Based on these datasets, and inspired by existing resources, we build the first version of a catalog of open datasets for ML. We hope that this platform will be a first stepping stone towards the reuse of open datasets in Machine Learning contexts.
Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles
Creators: name: Casabone, Bernardo
name: Deshmukh, Chetan
name: Liu, Shuping
name: Serrano, Diana
name: Ferrier, Alban
name: Hümmer, Thomas
name: Goldner, Philippe
name: Hunger, David
name: de Riedmatten, Hugues
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interaction of single quantum emitters with an optical cavity enables the realization of efficient spin-photon interfaces, an essential resource for quantum networks. The dynamical control of the spontaneous emission rate of quantum emitters in cavities has important implications in quantum technologies, e.g. for shaping the emitted photons waveform, for generating quantum entanglement, or for driving coherently the optical transition while preventing photon emission. Here we demonstrate the dynamical control of the Purcell enhanced emission of a small ensemble of erbium ions doped into nanoparticles. By embedding the doped nanoparticles into a fully tunable high finesse fiber based optical microcavity, we show that we can tune the cavity on- and out of-resonance by controlling its length with sub-nanometer precision, on a time scale more than two orders of magnitude faster than the natural lifetime of the erbium ions. This allows us to shape in real time the Purcell enhanced emission of the ions and to achieve full control over the emitted photons' waveforms. This capability opens prospects for the realization of efficient nanoscale quantum interfaces between solid-state spins and single telecom photons with controllable waveform, and for the realization of quantum gates between rare-earth ion qubits coupled to an optical cavity.
description: 12 pages, 7 figures, submitted
title: Falling between worlds
title: The comings and goings of a virtual itinerant wayfarer in a creative community
titleType: Subtitle
Creators: name: Baxter, Tess
Publisher: name: Lancaster University
Year: 2021
Subjects: subject: Digital Art
subject: virtual worlds
subject: video art
subject: machinima
subject: Fan Cultures
subject: creativity
subject: Internet
subject: Anthropology
subject: FOS: Sociology
subject: Sociology
subject: Art
subject: Visual
subject: Film
subject: Printmaking
subject: Media
subject: video games
subject: Literature
subject: Literary Studies
subject: FOS: Languages and literature
subject: Multidisciplinary
subject: Practice Based Research

description: Second Life is a long established virtual world, set up as a user created space, rather than a games studio designed product. This longevity is interesting, providing an example of how humans can develop a presence in virtual space, and where people, re-embodied as avatars, interact socially and make things imaginatively and artistically. My avataric pseudonym in this world is Tizzy Canucci. Within the research, I use the insights of an insider wanting to share my experiences outwards, through words and video art, rather than being a distanced visitor. This engages with the aim of both autoethnography and practice based or led research, an important part of which is to articulate a critical approach to being an objective inside observer. This approach of research from creation is also a multi-disciplinary one, connecting widely, but most significantly to geography, film, literature and history. As a geographic and cartographic spatial exercise, the research positions itself as research enquiry rather than answering research questions, as exploring and discovering rather than starting with a preconceived frame. The various terminologies of film, video, moving image, animation and machinima, are discussed across time and material forms. I resist the label of ‘machinima’ for my practice as being too contained within digital game worlds. Exploring connections with feminist experimental film, animation and imaginative expressionism provides important insights, which leads to ‘video art’ as a better compromise. In terms of literature, translation and literary theory consider how humans communicate understanding through language, and extending it to understand how visual and audio material inter-relate as languages is a productive approach, rather than seeing technologies as mediating and determining. These wider connections also see digital in its historical context, as a recent technological and social innovation of many – more pervasive, but not exceptional – giving a nuanced understanding of digital culture.
Photon yields from nitrogen gas and dry air excited by electrons
Creators: name: Nagano, M.
name: Kobayakawa, K.
name: Sakaki, N.
name: Ando, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to detect ultrahigh-energy cosmic rays (UHECR), atmospheric fluorescence light from the trajectory of the extensive air shower may be measured by mirror-photosensor systems. In this type of experiment the photon yield from electrons exciting air of various densities and temperatures is most fundamental information for estimating the primary energy of UHECR. An experiment has been undertaken using a Sr90 $β$ source to study the pressure dependence of photon yields, and the life times of the excited states, for radiation in nitrogen and dry air. The photon yield between 300 nm and 406 nm in air excited by 0.85 MeV electrons is 3.73+-0.15 (+-14% systematic) photons per meter at 1000 hPa and 20 $^{\circ}$C. The air density and temperature dependence is given for application to UHECR observations.
description: 28 pages, 13 figures, LaTeX with elsart.cls, accepted by Astroparticle Physics
Migration dynamics in play in Morocco: trafficking and political relationships and their implications at the regional level
Creators: name: Lahlou, Mehdi
Publisher: name: Zenodo
Year: 2018

description: In 2018, Morocco became the first country of departure for migrants from Africa, as Spain became, simultaneously, the most important gateway to Europe during the same year. For Spain, this development revived fears generated by the events of autumn 2005, when hundreds of migrants breached, for the first time, the security fences between its cities in the North of Africa (Ceuta
 and Melilla) and the rest of Morocco. It also recalled the arrival of 32,000 migrants, primarily from Mauritania and Senegal, in the Canary Islands from May to September 2006. In that sense, the history of irregular migration between Africa and Europe seems to have been repeated since the beginning of the current century. Thus, the recent migration trends in the western Mediterranean indicate that, even if Morocco does everything it can and collaborates fully with European migration policy, as is the case today, these actions will not reduce irregular migration to the northern shores of the Mediterranean – and stop all the trafficking it induces – unless a new approach to security, economic and social conditions is adopted in the countries of departure. The management of migration from Africa needs to be conducted as part of a global, coherent and multilateral approach. Migration policies led by the European Union as well as the Maghreb countries must be implemented in close partnership with sub-Saharan countries of departure. Such cooperation must include not only the signing of readmission agreements with every African country from which the migrants depart, but also smart development plans to reduce the level of emigration. Moreover, in regard to migration via the southern coast of Spain, it seems clear that without effective Moroccan–Algerian cooperation, Morocco’s eastern border will continue to experience high migratory pressure, even if the two countries complete the “walls of protection” they started building years ago between their respective territories. And that pressure will necessarily be borne by Spain and the rest of Europe.
Masquerading hybrid stars with dark matter
Creators: name: Biesdorf, Carline
name: Schaffner-Bielich, Jürgen
name: Tolos, Laura
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the influence of dark matter on hybrid stars. Using a two-fluid approach, where normal and dark matter components interact only gravitationally, we explore how dark matter can trigger the appearance of quark matter in neutron stars for unprecedented low masses. Our findings reveal that dark matter increases the central pressure of neutron stars, potentially leading to the formation of hybrid stars with quark cores even at very low compact star masses. The critical mass for the appearance of quark matter decreases with increasing dark matter content. We introduce the concept of "masquerading hybrid stars", where dark matter admixed stars exhibit similar mass-radius relations to purely hadronic stars, making it challenging to distinguish between them based solely on these parameters. Additionally, we identify a unique class of objects termed "dark oysters", characterized by a large dark matter halo and a small normal matter core, highlighting the diverse structural possibilities for compact stars influenced by dark matter.
description: 16 pages, 7 figures
Hymenodiscus agassizi Perrier 1882
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Brisingida
Brisingidae
Hymenodiscus
Hymenodiscus agassizi

description: agassizi Perrier, 1882, Hymenodiscus
Hymenodiscus agassizi Perrier, 1882: 61. — Mah in Clark & Mah 2001: 326.
CURRENT STATUS. — Hymenodiscus agassizi Perrier, 1882.
TYPE MATERIAL. — Caribbean Sea • 1 syntype; Dominica; BLAKE expedition (1878-1879); depth 715 m; MNHN-IE-2014-161 • 1 syntype; same as for preceding; MNHN-IE-2014-599.
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 263, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
Spectral and Strength Statistics of Chiral Brownian Ensemble
Creators: name: Shukla, Pragya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Multi-parametric chiral random matrix ensembles are important tools to analyze the statistical behavior of generic complex systems with chiral symmetry. A recent study \cite{psmulti} of the former maps them to the chiral Brownian ensemble (Ch-BE) that appears as a non-equilibrium state of a single parametric crossover between two stationary chiral Hermitian ensembles. This motivates us to pursue a detailed statistical investigation of the spectral and strength fluctuations of the Ch-BE, with a focus on their behavior near zero energy region. The information can then be used for a wide range of complex systems with chiral symmetry. Our analysis also reveals connections of Ch-BE to generalized Calogero Sutherland Hamiltonian (CSH) and Wishart ensembles. This along with already known connections of complex systems without chirality to CSH strongly hints the later to be the "backbone" Hamiltonian governing the spectral dynamics of Complex systems.
description: 40 Pages, no figures, new material and solutions added
Extended Coronal Emission Lines in Active Galactic Nuclei
Creators: name: Rodriguez-Ardila, A.
name: Prieto, A.
name: Viegas, S. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: VLT and NTT spectra are used to examine the nuclear and extended coronal line emission in a sample of well-known Seyfert 1 and 2 galaxies. The excellent spatial resolution obtained with VLT allowed us to map [SiVI] 1.963 $μ$m and [SiVII] 2.48 $μ$m on scales of up to 20 pc. Coronal line emission, extended to distances of $\sim$100 pc, is detected in some of the lines analyzed, particularly in [FeX] 6374Å, [FeXI] 7891Å, and [SiVII] 2.48$μ$m. Most coronal lines are strongly asymmetric towards the blue and broader than low-ionization lines. This result is particularly important for Circinus, where previous observations had failed at detecting larger widths for high-ionization lines. Photoionization models are used to investigate the physical conditions and continuum luminosities necessary to produced the observed coronal emission. We found that an ionization parameter U> 0.10 is necessary to reproduce the observations, although the clouds should be located at distances < 30 pc.
description: 4 pages, 6 figures, to appear in proceedings of IAU Symposium No. 222, The Interplay Among Black Holes, Stars and ISM in Galacti Nuclei
Neutrino oscillations from the splitting of Fermi points
Creators: name: Klinkhamer, F. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: As was shown previously, oscillations of massless neutrinos may be due to the splitting of multiply degenerate Fermi points. In this Letter, we give the details and propose a three-flavor model of Fermi point splittings and neutrino mixings with only two free parameters. The model may explain recent experimental results from the K2K and KamLAND collaborations. There is also rough agreement with the data on atmospheric neutrinos (SuperK) and solar neutrinos (SNO), but further analysis is required. Most importantly, the Ansatz allows for relatively strong T-violating (CP-nonconserving) effects in the neutrino sector.
description: 6 pages with jetplFRK.cls, v4: published version
title: Youthspeak
title: Using a data-driven approach to explore secondary school students' perspectives on school violence in Trinidad and Tobago
titleType: Subtitle
Creators: name: Louis, Halcyon
Publisher: name: Lancaster University
Year: 2021
Subjects: school violence
data-driven research
student perspectives

description: School violence challenges the ideal of school as a safe space for educating young persons (Bucher and Manning, 2005). In Trinidad and Tobago, significant media coverage and public outcry about increasing school violence led to its prioritisation for national-level intervention. Yet, students’ voices have been underrepresented in prevention efforts, in like manner to global trends (Brown and Winterton, 2010; Sundaram, 2016). This study has, therefore, explored students’ views about the causes and consequences of school violence in Trinidad and Tobago, and their recommendations for its reduction and prevention. To engage the students’ perspectives, my research was informed by grounded theory (Glaser and Strauss, 1967) and employed inclusive participatory methods (Bergold and Thomas, 2012; Nind, 2014). Using purposive sampling, I engaged 39 students (28 girls; 11 boys) from six secondary schools that were most at-risk for violence (JSC-SSPA, 2016). I conducted focus groups with three to five students in each school, and individual interviews with 25 students from across the research sample. For the students, school violence refers to physical and non-physical altercations that are primarily student-initiated, with differences in the manifestations of violence by gender groups. The students are equally concerned about structural violence, but classify its manifestations as inappropriate behaviours and not as violence. They also understand that school violence is caused by contextual factors at the school and wider societal levels. The students further recommend a collaborative approach to preventative interventions, with student-involvement. This study has contributed to knowledge by elucidating contextual school violence from young persons’ perspectives, and the effects of intersectional factors on emergent school violence. It has, thereby, highlighted causal factors and enabling conditions that have been overlooked within the school violence discourse. Further, it has provided practical tools for school-level application, to inform effective interventions based on a collaborative/whole-school approach (Cowie and Jennifer, 2007).
Acute conjunctivitis: truth and misconceptions
Creators: name: O’Brien, Terrence P
name: Jeng, Bennie H.
name: McDonald, Marguerite
name: Raizman, Michael B.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Objective: Acute conjunctivitis is an extremely common condition and can be associated with significant morbidity and economic burden. Despite this, considerable controversy exists pertaining to the prevalence, diagnosis, management, and treatment of the condition. A panel of ophthalmology experts was assembled to review and discuss the current evidence based literature as it pertains to each of these persistent controversies. Methods and scope: An acute conjunctivitis round table symposium was convened at the American Academy of Ophthalmology meeting in Atlanta, November 2008. The expert panelists consisted of four academic ophthalmologists in the field of cornea and external disease, whose discussion was informed by an English language literature survey carried out on the PubMed database for the period of January 1972 to October 2008. A narrative summary was generated from the literature review and direct transcription of this event, from which this Review article was developed. Findings and conclusions: Considerable light has been shed on acute microbial conjunctivitis and especially those cases caused by adenovirus. Many of the myths that have perpetuated for years have been debunked by emerging evidence. The advent and the implementation of better diagnostic tools and anti-viral medications will help clinicians to improve their diagnostic accuracy, improve management and treatment decisions, and ultimately benefit patients while saving overall healthcare costs.
Meson Correlation Functions in the epsilon-Regime
Creators: name: Chiarappa, T.
name: Bietenholz, W.
name: Jansen, K.
name: Nagai, K. -I.
name: Shcheredin, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a numerical pilot study of the meson correlation functions in the epsilon-regime of chiral perturbation theory. Based on simulations with overlap fermions we measured the axial and pseudo-scalar correlation functions, and we discuss the implications for the leading low energy constants in the chiral Lagrangian.
description: 3 pages, 3 figures, talk presented at Lattice2003(chiral)
Learning what to remember
Creators: name: Bhattacharjee, Robi
name: Mahajan, Gaurav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We consider a lifelong learning scenario in which a learner faces a neverending and arbitrary stream of facts and has to decide which ones to retain in its limited memory. We introduce a mathematical model based on the online learning framework, in which the learner measures itself against a collection of experts that are also memory-constrained and that reflect different policies for what to remember. Interspersed with the stream of facts are occasional questions, and on each of these the learner incurs a loss if it has not remembered the corresponding fact. Its goal is to do almost as well as the best expert in hindsight, while using roughly the same amount of memory. We identify difficulties with using the multiplicative weights update algorithm in this memory-constrained scenario, and design an alternative scheme whose regret guarantees are close to the best possible.
Large Scale Structures in the CANDELS Fields: The Role of the Environment in Star Formation Activity
Creators: name: Chartab, Nima
name: Mobasher, Bahram
name: Darvish, Behnam
name: Finkelstein, Steven L.
name: Guo, Yicheng
name: Kodra, Dritan
name: Lee, Kyoung-Soo
name: Newman, Jeffrey A.
name: Pacifici, Camilla
name: Papovich, Casey
name: Sattari, Zahra
name: Shahidi, Abtin
name: Dickinson, Mark E.
name: Faber, Sandra M.
name: Ferguson, Henry C.
name: Giavalisco, Mauro
name: jafariyazani, Marziye
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a robust method, weighted von Mises kernel density estimation, along with boundary correction to reconstruct the underlying number density field of galaxies. We apply this method to galaxies brighter than $\rm HST/F160w\le 26$ AB mag at the redshift range of $0.4\leq z \leq 5$ in the five CANDELS fields (GOODS-N, GOODS-S, EGS, UDS, and COSMOS). We then use these measurements to explore the environmental dependence of the star formation activity of galaxies. We find strong evidence of environmental quenching for massive galaxies ($\rm M \gtrsim 10^{11} \rm {M}_\odot$) out to $z\sim 3.5$ such that an over-dense environment hosts $\gtrsim 20\%$ more massive quiescent galaxies compared to an under-dense region. We also find that environmental quenching efficiency grows with stellar mass and reaches $\sim 60\%$ for massive galaxies at $z\sim 0.5$. The environmental quenching is also more efficient in comparison to the stellar mass quenching for low mass galaxies ($\rm M \lesssim 10^{10} \rm {M}_\odot$) at low and intermediate redshifts ($z\lesssim 1.2$). Our findings concur thoroughly with the "over-consumption" quenching model where the termination of cool gas accretion (cosmological starvation) happens in an over-dense environment and the galaxy starts to consume its remaining gas reservoir in depletion time. The depletion time depends on the stellar mass and could explain the evolution of environmental quenching efficiency with the stellar mass.
description: 17 pages, 10 figures, 3 tables, accepted for publication in the ApJ. Catalogs of the environment measurements and the density maps will be available with the final published paper in ApJ
Bathyferdina aireyae Mah 2017
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Goniasteridae
Bathyferdina
Bathyferdina aireyae

description: aireyae Mah, 2017, Bathyferdina
Bathyferdina aireyae Mah, 2017: 12.
CURRENT STATUS. — Bathyferdina aireyae Mah, 2017.
TYPE MATERIAL. — New Caledonia • 3 paratypes; station DW 3866; Ellet Bank; Exbodi expedition; MNHN-IE-2007-6377.
Vanuatu • 1 paratype; station DW 964; Anatom Island; MUSOR- STOM 8 expedition; MNHN-IE-2013-5132.
Solomon Islands • 1 paratype; Alis expedition; 6°51’S, 156°24’E; MNHN-IE-2007-126.
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 263, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
Essays on the theory of incentives : procurement, franchise & innovation contracts
Creators: name: Evans, Shane B.
Publisher: name: The Australian National University
Year: 2010
Subjects: subject: HD39.5.E93 2010
subject: Industrial procurement
subject: Franchises (Retail trade)
subject: Incentives in industry
subject: Technological innovations Economic aspects

description: This thesis explores models of procurement, franchising and innovation through the lens of the theory of incentives. Chapter 2 examines the influence of type-dependent reservation utility on the optimality of linear contracts in a Principal-Agent model of procurement. Type-dependency of reservation utility, combined with the requirements of individual rationality and incentive compatibility in the principal's contracts induces a countervailing incentive effect, the strength of which depends on an index of quality or degree of competition that the agent would face in a private market. The results show how the curvature of the reservation utility dictates whether the optimal contracts can be implemented with a menu of linear contracts, and how the magnitude of the private market index influences the net-transfer rule. Chapter 3 studies contracts between a manufacturer and a retailer when the retailer has exante private information, and is subject to limited liability. The contract takes place over two periods. In the first period, the retailer can take an action which influences the manufacturer's beliefs about the distribution of demand states for a final good in the second period. The retailer sells the manufacturer's intermediate good into a final output market according to a variable fee schedule. The interaction of the limited liability constraints with incentive compatibility gives rise to an expected surplus to the retailer, which the manufacturer can extract with a franchise fee. The franchise fee can also be used as a screening device or a means of eliciting the efficient first stage action from the retailer. In Chapter 4 a developer contracts with a researcher for the production of a non-drastic innovation. Since effort is non-contractible, the developer offers an incentive contract dependent on the observed magnitude of the innovation. It is shown that the distribution of intellectual property rights (IPR) ownership does not affect the level of effort exerted for innovations where the developer would choose to license the innovation to its competitors.This is because the possibility of leakage of the innovation through licensing subsidies the developer's payment when IPR is delegated to the researcher, while at the same time eroding its profit.
Robust 3D reconstruction of dynamic scenes from single-photon lidar using Beta-divergences
Creators: name: Legros, Quentin
name: Tachella, Julian
name: Tobin, Rachael
name: McCarthy, Aongus
name: Meignen, Sylvain
name: Buller, Gerald S.
name: Altmann, Yoann
name: McLaughlin, Stephen
name: Davies, Michael E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we present a new algorithm for fast, online 3D reconstruction of dynamic scenes using times of arrival of photons recorded by single-photon detector arrays. One of the main challenges in 3D imaging using single-photon lidar in practical applications is the presence of strong ambient illumination which corrupts the data and can jeopardize the detection of peaks/surface in the signals. This background noise not only complicates the observation model classically used for 3D reconstruction but also the estimation procedure which requires iterative methods. In this work, we consider a new similarity measure for robust depth estimation, which allows us to use a simple observation model and a non-iterative estimation procedure while being robust to mis-specification of the background illumination model. This choice leads to a computationally attractive depth estimation procedure without significant degradation of the reconstruction performance. This new depth estimation procedure is coupled with a spatio-temporal model to capture the natural correlation between neighboring pixels and successive frames for dynamic scene analysis. The resulting online inference process is scalable and well suited for parallel implementation. The benefits of the proposed method are demonstrated through a series of experiments conducted with simulated and real single-photon lidar videos, allowing the analysis of dynamic scenes at 325 m observed under extreme ambient illumination conditions.
description: 12 pages
Systematic review and meta-analysis of the clinical safety and tolerability of ibuprofen compared with paracetamol in paediatric pain and fever
Creators: name: Southey, Elizabeth R.
name: Soares-Weiser, Karla
name: Kleijnen, Jos
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Objective: The main aim of this review was to compare the tolerability and safety between ibuprofen and paracetamol when used as anti-pyretic and analgesic agents in children up to 18 years of age. Methods: MEDLINE (1950 to November 2008), EMBASE (1980 to November 2008), The Cochrane Library (2007, Issue 3), ACP Journal Club (1991 to November 2007) and Pascal (1987 to November 2007) were searched for randomised controlled trails (RCTs) (comparing ibuprofen and/or paracetamol with placebo), controlled observational studies and large case series comprised more than 1000 participants. Main outcome measures: Adverse events (AEs) requiring discontinuation of medication; systemic reactions related to ibuprofen or paracetamol; serious AEs that are fatal, life-threatening or require hospitalisation; and serious AEs not requiring hospitalisation. Results: A total of 24 RCTs examined either ibuprofen and/or paracetamol versus placebo for AE data. Twelve other studies meeting our criteria were also included for AE data. Meta-analysis of systemic reactions demonstrated that tolerability and safety of ibuprofen was similar to placebo, as was paracetamol: ibuprofen versus placebo relative risk (RR) 1.39 (95% CI: 0.92, 2.10); paracetamol versus placebo RR 1.57 (95% CI 0.74, 3.33). A total of 2937 systemic AEs occurred in 21 305 patients taking ibuprofen compared with 1466 systemic AEs in 11 164 patients taking paracetamol: RR 1.03 (95% CI 0.98, 1.10). There was no significant difference between the two groups. Narrative analysis of AE data identified conflicting evidence regarding hepatic injury with paracetamol and group A streptococcal infections with ibuprofen or paracetamol treatment. Conclusions: Ibuprofen, paracetamol and placebo have similar tolerability and safety profiles in terms of gastrointestinal symptoms, asthma and renal adverse effects. While the study data investigated here may not reflect over-the-counter use, these results are still relevant in the context of any safety concerns relating to general ibuprofen or paracetamol treatment in children.
Gravitational waves from fast-spinning white dwarfs
Creators: name: Sousa, Manoel F.
name: Coelho, Jaziel G.
name: de Araujo, José C. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Two mechanisms of gravitational waves (GWs) emission in fast-spinning white dwarfs (WDs) are investigated: accretion of matter and magnetic deformation. In both cases, the GW emission is generated by an asymmetry around the rotation axis of the star. However, in the first case, the asymmetry is due to the amount of accreted matter on the magnetic poles, while in the second case it is due to the intense magnetic field. We have estimated the GW amplitude and luminosity for three binary systems that have a fast-spinning magnetized WD, namely, AE Aquarii, AR Scorpii and RX J0648.0-4418. We find that, for the first mechanism, the systems AE Aquarii and RX J0648.0-4418 can be observed by the space detectors BBO and DECIGO if they have an amount of accreted mass of $δm \geq 10^{-5}M_{\odot }$. For the second mechanism, the three systems studied require that the WD have a magnetic field above $\sim 10^{9}$ G to emit GWs that can be detected by BBO. We also verified that, in both mechanisms, the gravitational luminosity has an irrelevant contribution to the spindown luminosity of these three systems. Therefore, other mechanisms of energy emission are needed to explain the spindown of these objects.
description: Accepted for publication in MNRAS. 8 pages, 4 figures, 6 tables. arXiv admin note: text overlap with arXiv:1911.09794
Duality Symmetry and Plane Waves in Non-Commutative Electrodynamics
Creators: name: Abe, Yasumi
name: Banerjee, Rabin
name: Tsutsui, Izumi
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalise the electric-magnetic duality in standard Maxwell theory to its non-commutative version. Both space-space and space-time non-commutativity are necessary. The duality symmetry is then extended to a general class of non-commutative gauge theories that goes beyond non-commutative electrodynamics. As an application of this symmetry, plane wave solutions are analysed. Dispersion relations following from these solutions show that general non-commutative gauge theories other than electrodynamics admits two waves with distinct polarisations propagating at different velocities in the same direction.
description: 13 pages, PlainTeX. A reference and an equation (Ref.[11] and eq.(4.16)) are added, the text is amended, and some contents are deleted. Errors in some equations ((4.13), (4.14), (4.15) and (4.19)) are corrected
Entropy bounds for multiparty device-independent cryptography
Creators: name: Grasselli, Federico
name: Murta, Gláucia
name: Kampermann, Hermann
name: Bruß, Dagmar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multiparty quantum cryptography based on distributed entanglement will find its natural application in the upcoming quantum networks. The security of many multipartite device-independent (DI) protocols, such as DI conference key agreement, relies on bounding the von Neumann entropy of the parties' outcomes conditioned on the eavesdropper's information, given the violation of a multipartite Bell inequality. We consider three parties testing the Mermin-Ardehali-Belinskii-Klyshko (MABK) inequality and certify the privacy of their outcomes by bounding the conditional entropy of a single party's outcome and the joint conditional entropy of two parties' outcomes. From the former bound, we show that genuine multipartite entanglement is necessary to certify the privacy of a party's outcome, while the latter significantly improve previous results. We obtain the entropy bounds thanks to two general results of independent interest. The first one drastically simplifies the quantum setup of an $N$-partite Bell scenario. The second one provides an upper bound on the violation of the MABK inequality by an arbitrary $N$-qubit state, as a function of the state's parameters.
description: Added discussion on the tightness of the entropy bounds, with comparison between analytical bounds and numerical estimations. Added explicit proof of the necessity of genuine multipartite entanglement for the secrecy of a party's outcome
Dark Matter Freeze-In during Warm Inflation and the Seesaw Mechanism
Creators: name: de Souza, Rayff
name: Rodrigues, Jamerson G.
name: Siqueira, Clarissa
name: Santos, Felipe B. M. dos
name: Alcaniz, Jailson
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A compelling way to address the inflationary period is via the warm inflation scenario, where the interaction of the inflaton field with other degrees of freedom affects its dynamics in such a way that slow-roll inflation is maintained by dissipative effects in a thermal bath. In this context, if a dark matter particle is coupled to the bath due to non-renormalizable interactions, the observed dark matter abundance may be produced during warm inflation via ultra-violet freeze-in. In this work, we propose applying this scenario in the framework of a $U(1)_{B-L}$ gauge extension of the Standard Model of Particle Physics, where we also employ the seesaw mechanism for generating neutrino masses.
description: 20 pages, 4 figures and 1 table