cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Approaching Banditry from the Lens of Methodological Conversation: A Look at Theatre for Development and Participatory, Learning and Action
Creators: name: Ihuoma Okorie
Publisher: name: Zenodo
Year: 2021

description: The challenges of global insecurity have been a bane on the development of societies. Ranging from wars to famines, disasters to mention but a few, the issue of global insecurity is one that has indeed, ravaged the global terrain. Particularly, in Nigeria, new threats such as terrorism and banditry have become so prevalent that it has become a development challenge especially in the areas affected. Therefore, a fundamental re-think is needed on the approaches adopted by the government in quelling this crisis. Using the theory of participation, this paper proposes that involving the communities affected through methodological conversation which focuses on a combo of Theatre for Development and Participatory Learning and Action, can help to alleviate this crisis. As a road map to bringing to the barest minimum, the crisis of banditry in the Nigerian society, this paper recommends the need to fully involve the people in the various communities with the help of facilitators, in the discussion of this pertinent issue. This is the only way for critical issues to be discussed and brought to fore as reasons and facts for the persistence of this anomaly will be exhumed through the methods that would be deployed thus, bringing a lasting solution to the menace called banditry.
Association between NUDT17 polymorphisms and breast cancer risk
Creators: name: Han, Junhui
name: Liang, Jing
name: Zhou, Wenqian
name: Zhang, Man
name: Jin, Tianbo
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Breast cancer (BC) is the leading cause of cancer death among women worldwide. The nudix hydrolase 17 (NUDT17) may play notable roles in cancer growth and metastasis. In this study, we explored the importance of NUDT17 gene polymorphism in patients with BC. In our study, 563 BC patients and 552 healthy controls participated. We used logistic regression analysis to calculate odds ratios (OR) and 95% confidence intervals (CI), and multifactor dimension reduction (MDR) analysis of SNP-SNP interactions. Finally, UALCAN and THPA databases were used for bioinformatics analysis. The rs9286836 G allele was associated with a decreased the BC risk (p = 0.022), and the carriers of rs2004659 G allele had a 32% decreased risk of BC than individuals with allele A (p = 0.004). In the four genetic models, rs9286836 and rs2004659 reduced the risk of BC. Additionally, we found that the NUDT17 SNPs were associated with BC risk under age, tumor size, and clinical stage stratification. The MDR analysis showed that the five-locus interaction model was the best in the multi-locus model. Our study found that NUDT17 single nucleotide polymorphisms are associated with BC susceptibility in Chinese Han population.
Cosmological Pair Production of Charged and Rotating Black Holes
Creators: name: Booth, I. S.
name: Mann, R. B.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the general process of black hole pair creation in a cosmological background, considering the creation of charged and rotating black holes. We motivate the use of Kerr-Newmann-deSitter solutions to investigate this process, showing how they arise from more general C-metric type solutions that describe a pair of general black holes accelerating away from each other in a cosmological background. All possible KNdS-type spacetimes are classified and we examine whether they may be considered to be in full thermodynamic equilibrium. Instantons that mediate the creation of these space-times are constructed and we see that they are necessarily complex due to regularity requirements. Thus we argue that instantons need not always be real Euclidean solutions to the Einstein equations. Finally, we calculate the actions of these instantons and find that the standard action functional must be modified to correctly take into account the effects of the rotation. The resultant probabilities for the creation of the space-times are found to be real and consistent with the interpretation that the entropy of a charged and rotating black hole is the logarithm of the number of its quantum states.
description: Latex, 49 pages, 9 figures, uses psfig, typos corrected in eqns 107, 108 and between eqns 92 and 93. References updated
Mixing-length calibration from field stars. An investigation on statistical errors, systematic biases, and spurious metallicity trends
Creators: name: Valle, G.
name: Dell'Omodarme, M.
name: Moroni, P. G. Prada
name: Degl'Innocenti, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analysed the theoretical foundation of the mixing-length calibration by means of classical and global asteroseismic observables of field stars. We discussed the soundness of inferring a metallicity dependence of the mixing-length parameter. We followed a theoretical approach based on mock datasets of artificial stars sampled from a grid of stellar models with a fixed $α_{ml}$. [...] We verified that the $α_{ml}$ estimates are affected by a huge spread, even in the case of perfect agreement between the mock data and the recovery grid. When the solar heavy-element mixture used to compute the models is different from that of the artificial stars, we also found a metallicity relationship in which $α_{ml}$ increases by 0.4 for an increase of 1 dex in [Fe/H]. The origin of this trend was investigated considering the differences in the initial helium abundance Y -- [Fe/H] -- initial metallicity Z relation assumed in the models and data. A discrepancy between the adopted helium-to-metal enrichment ratio caused the appearance of relevant spurious trends in the estimated $α_{ml}$. [...] A similar effect was caused by an offset in the [Fe/H] to Z conversion. An overestimation of [Fe/H] by 0.1 dex in the recovery grid forced an increasing trend of $α_{ml}$ versus [Fe/H] of 0.2 per dex. We also explored the impact of some discrepancies between the adopted input physics in the recovery grid and mock data. We observed a trend with [Fe/H] of 0.3 per dex when the effect of the microscopic diffusion is neglected in the recovery grid [...]. Therefore, any attempt to calibrate the mixing-length parameter by means of classical and asteroseimic observables of field stars seems to be statistically poorly reliable. As such, any claim about the dependence of the mixing-length on the metallicity for field stars should be considered cautiously and critically.
description: Abstract severely abridged. Accepted for publication in A&A
Are Australian Food Companies Using Nature Imagery as a Marketing Strategy? A Content Analysis
Creators: name: De Vlieger, Nienke
name: Adam, Marc T. P.
name: Nicolay, Pierre-Henry
name: Piper, Jessica
name: Dohle, Simone
name: Collins, Clare E.
name: Bucher, Tamara
Publisher: name: MDPI
Year: 2024
Subjects: Nature images
Food choice
Online
Webpages
Sustainability
Consumers
Green marketing
Food companies

description: Emerging evidence suggests that nature imagery can affect consumer food choices. However, little is known about whether and, if so, how food companies use nature imagery as a means to appeal to consumers’ environmental concerns as a marketing strategy. The current study aims to explore this matter for websites of Australian food companies. We extracted images from 45 Australian food company websites and coded for (1) nature type, (2) restorative effect, (3) level of cultivation and human interference, and (4) processing level (only for images with food present). All included food companies had a separate webpage dedicated to sustainability, and most nature images were located there. Sustainability pages had more images of ‘pure nature’ (i.e., no cultivation or human interference and high in restorative effects) and more ‘urban’ images compared to the main pages. Most food in the images was unprocessed, while only one image featured both nature and food. Australian food companies are commonly using images of nature on their sustainability webpages. The images might be used as a marketing strategy to connect with consumers’ environmental concerns as a strategy to build trust and affinity with customers. However, companies currently do not combine nature imagery and their food products in one image on their websites.
Privacy-Preserving Outsourcing of Large-Scale Nonlinear Programming to the Cloud
Creators: name: Li, Ang
name: Du, Wei
name: Li, Qinghua
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The increasing massive data generated by various sources has given birth to big data analytics. Solving large-scale nonlinear programming problems (NLPs) is one important big data analytics task that has applications in many domains such as transport and logistics. However, NLPs are usually too computationally expensive for resource-constrained users. Fortunately, cloud computing provides an alternative and economical service for resource-constrained users to outsource their computation tasks to the cloud. However, one major concern with outsourcing NLPs is the leakage of user's private information contained in NLP formulations and results. Although much work has been done on privacy-preserving outsourcing of computation tasks, little attention has been paid to NLPs. In this paper, we for the first time investigate secure outsourcing of general large-scale NLPs with nonlinear constraints. A secure and efficient transformation scheme at the user side is proposed to protect user's private information; at the cloud side, generalized reduced gradient method is applied to effectively solve the transformed large-scale NLPs. The proposed protocol is implemented on a cloud computing testbed. Experimental evaluations demonstrate that significant time can be saved for users and the proposed mechanism has the potential for practical use.
description: Ang Li and Wei Du equally contributed to this work. This work was done when Wei Du was at the University of Arkansas. 2018 EAI International Conference on Security and Privacy in Communication Networks (SecureComm)
A new method to introduce additional separated variables for high-order binary constrained flows
Creators: name: Zeng, Yunbo
Publisher: name: arXiv
Year: 2000
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Degrees of freedom for high-order binary constrained flows of soliton equations admitting $2\times 2$ Lax matrices are $2N+k_0$. It is known that $N+k_0$ pairs of canonical separated variables for their separation of variables can be introduced directly via their Lax matrices. In present paper we propose a new method to introduce the additional $N$ pairs of canonical separated variables and $N$ additional separated equations. The Jacobi inversion problems for high-order binary constrained flows and for soliton equations are also established. This new method can be applied to all high-order binary constrained flows admitting $2\times 2$ Lax matrices.
description: 34 pages, AmsTex, to be published in J. Phys. A
Coumarin Schiff base derivatives with alkyl 4’-formyl-biphenyl-4-carboxylate: design, synthesis, mesomorphic studies and DFT calculations
Creators: name: Katariya, Kanu
name: Nakum, Kiran
name: Soni, Rina
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Symmetric and unsymmetric homologous series of coumarin Schiff base derivatives with alkyl 4’-formyl-biphenyl-4-carboxylate have been synthesised and studied for their mesomorphic behaviour. In the symmetric homologous series of Schiff base derivatives BPES(6–16), alkoxy chain length was varied at both ends of the molecules with n = 6,8,10,12,14,16, while in the unsymmetric homologous series of Schiff base derivatives 10BPEU(2–12), chain length was varied at coumarin end only (n = 2–8,10,12). In symmetric homologous series, compounds BPES(6–10) (n = 6,8,10) exhibited enantiotropic smectic A (SmA) mesophase, while smectic C (SmC) mesophase in cooling cycle only. SmC mesophase became prominent on increasing the chain length n = 12,14,16 in BPES(12–16). In the unsymmetric homologous series 10BPEU(2–12), compound with n = 2 showed monotropic nematic mesophase and highly stable (~165 °C) SmA mesophase. Higher analogues in unsymmetric series were turned biphasic and showed SmA as well as SmC mesophase during cooling scan only. Compound with n = 12 showed stable enantiotropic SmC mesophase (~92 °C). VT-XRD analysis of symmetric compound with n = 12, showed the tilted SmC mesophase. Further DFT calculations were investigated for un/symmetric series along with the literature molecules with similar variations and compared for various structural (length, aspect ratio) and electronic (dipole moment, polarisability) parameters to establish correlation with observed mesomorphic behaviour.
Reverse mode LCPG films with self-assembly support of gel networks
Creators: name: He, Zemin
name: Chu, Yaqin
name: Luo, Shaolun
name: Yang, Haiyan
name: Yu, Ping
name: Wang, Lei
name: Miao, Zongcheng
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Biotechnology
Chemical Sciences not elsewhere classified

description: Liquid crystal physical gels (LCPG) with a 3D network structure show considerable promise as novel functional materials with a great impact on scientific and practical applications. LCPGs are not characterised by high hardness and high strength, but this mild nature is capable of forming dynamic supramolecular structures with the self-assembly ability of various non-covalent bonds such as hydrogen bonding, π-π stacking, and van der Waals forces. In addition to anisotropic changes under optical and electrical stimulation, it enables to be one of the candidates for display devices. When the isotropic-anisotropic transition temperature of LCPG solution (TIA) is higher than the sol-gel transition temperature of gel molecules (TSG), the gelation can anchor the orientation of liquid crystal molecules to achieve the alteration of transparency and scattering of the film. In this paper, reverse mode LCPG films with high contrast, low driving voltage, and excellent cycle life were prepared using oriented liquid crystal cassettes and LCPG solutions, it also focused on the effects of chiral compounds (S)-octan-2-yl 4-((4-(hexyloxy)benzoyl)oxy)benzoate (S811) and gel 1,3:2,4-bis-0-(3,4-dimethylbenzylidene)sorbitol (DMDBS) content on electro-optical properties of LCPG films as well as the different functions of TIA and TSG on film orientation.
The Impact of the Environment on the Early Stages of Radio Source Evolution
Creators: name: Sobolewska, Malgosia
name: Siemiginowska, Aneta
name: Guainazzi, Matteo
name: Hardcastle, Martin
name: Migliori, Giulia
name: Ostorero, Luisa
name: Stawarz, Lukasz
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Compact Symmetric Objects (CSOs) show radio features such as jets, lobes, hot spots that are contained within the central 1 kpc region of their host galaxy. Thus, they are thought to be among the progenitors of large-scale radio galaxies. A debate on whether the CSOs are compact primarily because they are young or because they are surrounded by a dense medium impacting their expansion is ongoing. Until now, attempts to discriminate between the environmental and genuine youthfulness scenarios have been inconclusive. We present a study of three CSOs selected on the basis of their puzzling X-ray absorbing properties in prior Beppo-SAX and/or Chandra X-ray Observatory data. Our new XMM-Newton observations unambiguously confirm the nature of their X-ray absorbers. Furthermore, for the first time, our X-ray data reveal the existence of a population of CSOs with intrinsic hydrogen column density $N_H > 10^{23}$ cm$^{-2}$ that is different from the population of X-ray unabsorbed CSOs. The two groups appear to be separated in the linear size vs. radio power plane. This finding suggests that a dense medium in X-ray obscured CSOs may be able to confine the radio jets. Alternatively, X-ray obscured CSOs could be seen as radio brighter than their unobscured counterparts either because they reside in a dense environment or because they have larger jet powers. Our results help constrain the origin of the X-ray emission and the location and size of the X-ray obscurer in CSOs, and indicate that the environment may play a key role during the initial expansion of a radio source.
description: 8 pages, 4 figures, ApJ in press
Future supernovae data and quintessence models
Creators: name: Di Pietro, Elisa
name: Claeskens, Jean-Francois
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The possibility to unambiguously determine the equation-of-state of the cosmic dark energy with existing and future supernovae data is investigated. We consider four evolution laws for this equation-of-state corresponding to four quintessential models, i.e. i) a cosmological constant, ii) a general barotropic fluid, iii) a perfect fluid with a linear equation-of-state and iv) a more physical model based on a pseudo-Nambu-Goldstone boson field. We explicitly show the degeneracies present not only within each model but also between the different models : they are caused by the multi-integral relation between the equation-of-state of dark energy and the luminosity distance. Present supernova observations are analysed using a standard $χ^2$ method and the minimal $χ^2$ values obtained for each model are compared. We confirm the difficulty to discriminate between these models using present SNeIa data only. By means of simulations, we then show that future SNAP observations will not remove all the degeneracies. For example, wrong estimations of $Ω_m$ with a good value of $χ^2_{min}$ could be found if the right cosmological model is not used to fit the data. We finally give some probabilities to obtain unambiguous results, free from degeneracies. In particular, the probability to confuse a cosmological constant with a true barotropic fluid with an equation-of-state different from -1 is shown to be 95% at a $2 σ$ level.
description: 12 pages. This improved version has been accepted for publication in M.N.R.A.S
The Diverse Landscape of Contemporary Greek Playwriting
Creators: name: Rosi, Lina
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: This essay makes an attempt to present the different trends in Greek playwriting during the last thirty years. The aim is to examine the dramatic production in the light of the postdramatic developments that define European theatre as a whole. In order to describe the wider context in which contemporary Greek playwriting develops, a brief outline of the major stages defining the theatrical activity of the period is sketched out. Moreover, the changes affecting the status of the dramatic text are discussed with regard to how different playwrights of the older and younger generation perceive their role and status in the field of theatrical practice. In mapping out the different trends, the focus lies on two major directions: on the plays that expand and reformulate the tradition of post-war realism, and on those that introduce and rework principles and elements originating in the field of postdramatic aesthetics.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Additional file 1: of Tuberculosis infection risk, preventive therapy care cascade and incidence of tuberculosis disease in healthcare workers at Maputo Central Hospital
Creators: name: Graves, Susannah
name: Orvalho Augusto
name: Viegas, Sofia
name: Lederer, Philip
name: David, Catarina
name: Lee, Kristen
name: Hassane, Anila
name: Anilsa Cossa
name: Amade, Salma
name: Peleve, Susete
name: Pereira Zindoga
name: Leguesse Massawo
name: Torriani, Francesca
name: Nunes, Elizabete
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Multivariable logistic regression model stratified by age. (DOCX 21 kb)
Greek Society During the Period of Crisis: the Role of History as a Mechanism of Repelling the Present
Creators: name: Grammatas, Theodoros
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: At the beginning of the twenty-first century, Greece is found deep into a crisis, both economic and social. In an effort to deal with its devastating effects, many contemporary playwrights attempt, just like their predecessors who found themselves in similar circumstances, a risky “return to the past.” They resort to subjects already exhausted and venture a style revival, hoping to revitalize the past and also inform the present. In more ways than one we could claim that History in their plays turns into an alibi for confronting a reality that appears to be both threatening and incomprehensible.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Circularly polarised luminescence of cholesteric polymer composite with high concentration of europium complex
Creators: name: Bobrovsky, Alexey
name: Kochkareva, Elina
name: Roslyakov, Ilya
name: Utochnikova, Valentina
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: A novel method has been developed for fabricating cholesteric liquid crystal polymer composite containing a luminescent europium complex. It involves creating porous cholesteric polymer networks, introducing the europium complex into the pores and encapsulating it through the UV-induced polymerisation of a nematic diacrylate. The resulting composite exhibits bright red luminescence upon excitation by UV light which is strongly circularly polarised. Such materials have potential applications in display technologies, counterfeit protection and other fields.
Transformations of "Home" in Contemporary Greek Drama: From a Domicentric View toward Space Decenterings
Creators: name: Alexandri, Ioanna
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: Theatre is made in space as well as of space. This assumption indicates not only that theatre needs space to unfold its performative power, but also that space is intrinsic to theatrical experience itself. This has led to various experimentations in the theatrical field both in the modern and postmodern era, questioning the performance-audience relationship and causing the emergence of new forms of subjectivity in relation to the lived experience through space. This paper explores the ways these shifts have penetrated the dramatic discourse in contemporary Greek drama, thus forming multiple layers of depiction of the postmodern conscience. Through the examination of six plays, which cover the past three decades, the paper will trace the successive transformations of “home,” a space that has been prevalent in global as well as Greek dramaturgy of modern years.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Revisiting the Size-Luminosity Relation in the Era of Ultra Diffuse Galaxies
Creators: name: Danieli, Shany
name: van Dokkum, Pieter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxies are generally found to follow a relation between their size and luminosity, such that luminous galaxies typically have large sizes. The recent identification of a significant population of galaxies with large sizes but low luminosities ("ultra diffuse galaxies", or UDGs) raises the question whether the inverse is also true, that is, whether large galaxies typically have high luminosities. Here we address this question by studying a size-limited sample of galaxies in the Coma cluster. We select red cluster galaxies with sizes $r_{\mathrm{eff}} > 2 \ \mathrm{kpc}$ down to $M_{g} \sim -13 \ \mathrm{mag}$ in an area of $9 \ \mathrm{deg}^2$, using carefully-filtered CFHT images. The sample is complete to a central surface brightness of $μ_{g,0}\approx 25.0 \ \mathrm{mag\,arcsec}^{-2}$ and includes 90% of Dragonfly-discovered UDGs brighter than this limit. Unexpectedly, we find that red, large galaxies have a fairly uniform distribution in the size-luminosity plane: there is no peak at the absolute magnitude implied by the canonical size-luminosity relation. The number of galaxies within $\pm 0.5$ magnitudes of the canonical peak ($M_g = -19.69$ for $2
description: Submitted to ApJL, comments are welcome
The "Polis" and the "Political" in Contemporary Greek Drama since the Eruption of the Greek Crisis: a First Appraisal (2009-2015)
Creators: name: Kondylaki, Dimitra
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: This article attempts to explore the way(s) contemporary Greek drama responded to social reality since the eruption of the economic crisis. Although Greek dramatists, in their struggle to redefine their relationship with the “polis,” have rejected the polemical tone of traditional “political theatre,” one wonders whether they have something, politically, new to propose. Focusing on the repertoire tendencies of the last five years, this paper argues that parody seems to have replaced the organized critique of social relations. Moreover, examining plays of contemporary authors, we detect an all pervasive determinist, passive and frequently self-destructive spirit. With this in mind, the question that seeks for an answer can be summed up this way: Can the Greek play re-imagine its role as a therapeutic mirror, rather than as a merely punitive and vindictive one?
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Statistics of Red Sites on Elastic and Full Backbone
Creators: name: Sen, Parongama
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the number of red sites on the elastic and real backbone when right at the percolation threshold a spanning cluster exists between two sites at opposite faces of the lattice and found that it scales in the same way as in the case of percolation between two plates. We also find out that the number of common red sites scales similarly for both kinds of backbones for percolation between pairs of sites on opposite faces of the lattice. Our statistics for several quantities show that the the exponent for the elastic backbone approaches the one of the full backbone as dimensionality is increased.
description: 12 pages, Revtex, 12 eps figures included, to be published in Physica A
Geochemical evidence for Alberta Oil Sands contamination in sediments remote to known oil sands deposits in Alberta, Canada
Creators: name: McCerery, Rebecca
name: Esegbue, Onoriode
name: Jones, Martin
name: Winter, Kate
name: McHale, Glen
name: Woodward, John
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Oil spills and natural oil seeps are sources of petrogenic hydrocarbons in soils and sediments. To determine the source of hydrocarbon contamination in the environment the geochemical signature of the contaminant needs to be characterised. Here, we present biomarker and other molecular marker diagnostic ratios of Alberta Oil Sands using gas chromatography-mass spectrometry to characterise the deposits and detect their incorporation in surficial sediments. Diagnostic ratios of steranes, terpanes, and aromatic steroids (e.g. C27, C28, and C29 regular sterane abundance, Gammacerane Index, Ts/Tm, TAS/(TAS + MAS), and MPI-2) were measured in samples of Alberta Oil Sands providing a set of criteria for their identification. Seven surficial sediment samples from central and southeast Alberta were then analysed using these criteria to detect Alberta Oil Sands contamination and other petrogenic and pyrogenic source inputs. Geochemical signatures consistent with Alberta Oil Sands hydrocarbons were identified in surficial sediments in Lamont County and glacial sediments from a moraine in Beaver County. Both sites are in Central Alberta, ∼300 km south of any oil sands extraction sites and natural exposures in northern Alberta, indicating long-distance sediment transport processes mobilised the deposits. These results show that the oil sands have been eroded and transported beyond the boundaries of their current known limits. This is important for understanding sediment transport processes as well as for remediation and reclamation purposes.
Supplemental results and experimental details. from Group characterization of impact-induced, in vivo human brain kinematics
Creators: name: Gomez, Arnold D.
name: Bayly, Philip V.
name: Butman, John. A.
name: Pham, Dzung L.
name: Prince, Jerry L.
name: Knutsen, Andrew K.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: Computational Biology

description: This file contains additional details regarding the acceleration waveform, additional results figures, and details on strain tensor averaging.
Incidental Occurrence of MTBE and Other Oxygenates in U.S. Gasolines after State-Level MTBE Bans, 2004-2020
Creators: name: Stout, Scott A.
name: Healey, Edward
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Space Science
Medicine
Cell Biology
Molecular Biology
Biotechnology
Environmental Sciences not elsewhere classified

description: The rapid rise in the use of MTBE in automotive gasoline in the U.S. in the early 1990s was matched only by its rapid decline in the early 2000s, the latter stemming from its unsettling and detrimental impact on groundwater and drinking water supplies following gasoline leaks and spills. Its decline was promulgated through implementation of numerous legislated, state-level bans, which along with the Energy Policy Act of 2005’s elimination of a minimum oxygen requirement for reformulated gasoline, effectively ended the “MTBE era” by the Spring of 2006. Despite the bans, most of which only prohibited the intentional use of MTBE, opportunities remained for its incidental occurrence in gasoline. In this study, we report on the existence, concentration, and frequency of incidental MTBE and other oxygenates (TAME, ETBE, DIPE, and TBA) in an ad hoc suite of 76 “post-ban” gasolines collected from retail service station dispensers in multiple states between 2004 (in states with early bans) and 2020. These results are compared to those for 75 “pre-ban” (oxygenated, reformulated, and conventional) gasolines. Using GC/MS full scan data with a method detection limit of 10 mg/kg, the results confirm the incidental occurrence of MTBE in 34% of the “post-ban” gasolines at concentrations between 980 and 17 mg/kg (avg. ± σ; 209 ± 307 mg/kg), which generally decreased between 2004 and 2020. MTBE’s origin(s) in “post ban” gasolines is reasonably attributed to cross-contamination with neat MTBE or MTBE-laden gasoline destined for U.S. export, and/or its otherwise lingering presence within the gasoline distribution system. Although less frequently detected, low concentrations (mostly < 1,000 mg/kg) of TAME, ETBE, DIPE and TBA were also found in 17, 14, 13 and 4% of the “post-ban” gasolines studied, respectively. The forensic implications of these results on constraining the “age” of gasoline-derived NAPL containing MTBE or of MTBE-impacted groundwater, which are equally applicable to the other oxygenates measured, are discussed. Of overriding relevance is that any presumption that MTBE completely disappeared from the U.S. gasoline pool after the implementation of the state-level bans and Energy Policy Act is false.
Non-Local Boundary Conditions in Euclidean Quantum Gravity
Creators: name: Esposito, Giampiero
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Non-local boundary conditions for Euclidean quantum gravity are proposed, consisting of an integro-differential boundary operator acting on metric perturbations. In this case, the operator P on metric perturbations is of Laplace type, subject to non-local boundary conditions; by contrast, its adjoint is the sum of a Laplacian and of a singular Green operator, subject to local boundary conditions. Self-adjointness of the boundary-value problem is correctly formulated by looking at Dirichlet-type and Neumann-type realizations of the operator P, following recent results in the literature. The set of non-local boundary conditions for perturbative modes of the gravitational field is written in general form on the Euclidean four-ball. For a particular choice of the non-local boundary operator, explicit formulae for the boundary-value problem are obtained in terms of a finite number of unknown functions, but subject to some consistency conditions. Among the related issues, the problem arises of whether non-local symmetries exist in Euclidean quantum gravity.
description: 23 pages, plain Tex. The revised version is much longer, and new original calculations are presented in section 4
"Facing Mirrors": Contemporary Greek Theatre Productions and the Issue of Identity
Creators: name: Ioannidis, Grigoris
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: Αt the dawn of the twenty-first century, Greek theatre began an open discussion with each one of the components that had hitherto constituted its identity, sporadically at first, but with increasing intensity in the following years. Although this discussion was initially broad, including new as well as older theatre-makers, writers, directors, and actors, its most interesting and challenging part concerned mainly young artists. This change was brought about by a number of factors that will undoubtedly be part of future Greek Theatre Studies. A brief mention will nevertheless be made of a few factors that deserve special attention. A key reason for this change was the profound crisis within the institutions that, until recently, had provided the foundation for the identity of the Greek theatrical tradition. This problem, which dates back to the past and was not necessarily a by-product of the recent economic crisis, concerns a younger generation of artists, who felt that the questions of citizenship and cultural identity that had nourished the post-dictatorship theatrical world were now obsolete and had lost their relevance. Over the years, the issue of identity had started nurturing introversion and became a matter of convenience. The new generation of theatre- makers could clearly see that theatrical developments abroad had left Greek theatre and theatre criticism far behind, and felt more and more strongly the urge to catch up with the dictates of the international scene. In this context, there was abundant evidence indicating that Greek theatre was in the grip of a subtle collusion that backed the post-dictatorship theatrical status quo and left no room for experimentation.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Additional file 2: of Intimate partner violence, depression, and sexual behaviour among gay, bisexual and other men who have sex with men in the PROUD trial
Creators: name: Miltz, Ada
name: Lampe, Fiona
name: Bacchus, Loraine
name: McCormack, Sheena
name: Dunn, David
name: White, Ellen
name: Rodger, Alison
name: Phillips, Andrew
name: Sherr, Lorraine
name: Clarke, Amanda
name: McOwan, Alan
name: Sullivan, Ann
name: Mitzy Gafos
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: (Table of associations between depressive symptoms and sexual behaviour measures). (PDF 86 kb)
A dispersive analysis of the pion vector form factor and $τ^{-}\to K^{-}K_{S}ν_τ$ decay
Creators: name: Gonzàlez-Solís, Sergi
name: Roig, Pablo
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore the potential of a combined analysis of the decays $τ^{-}\toπ^{-}π^{0}ν_τ$ and $τ^{-}\to K^{-}K_{S}ν_τ$ in the determination of the $ρ(1450)$ and $ρ(1700)$ resonance properties in the frame of resonance Chiral Theory supplemented by dispersion relations. On the one hand, we take advantage of the very precise data on the modulus squared of the pion vector form factor $|F_{V}^π|^{2}$ obtained by Belle to carry out a very dedicated analysis of the region where these resonances come up into play. Our study provides an improved treatment of the systematic theoretical errors and, as a most important result, we conclude that they dominate over the fit uncertainties in the determination of the $ρ(1450)$ and $ρ(1700)$ pole parameters and tend to be larger than in other determinations quoted in the literature where these errors were ignored or underestimated. The results of our analysis are summarized in numerical tables for the form factor modulus and phase, including both statistical and systematic errors, that can be found as ancillary material of this paper. As a byproduct, we also determine the low-energy observables of the pion vector form factor and the $ρ$-pole position. On the other hand, we benefit from the recent experimental data for the transition $τ^{-}\to K^{-}K_{S}ν_τ$ released by BaBar to perform a first analysis of its decay spectrum and discuss the role of these resonances in this decay. We point out that higher-quality data on the $K^{-}K_{S}$ decay channel will allow compete with the $|F_{V}^π|^{2}$ ones and improve the determination of the $ρ(1450)$ and $ρ(1700)$ resonance parameters as a result of a combined analysis. We hope our study to be of interest for present and future experimental analysis of these decays.
description: 35 pages, 8 figures, 2 ancillary files
On the origin of X-shaped radio-sources: new insights from the properties of their host galaxies
Creators: name: Capetti, A.
name: Zamfir, S.
name: Rossi, P.
name: Bodo, G.
name: Zanni, C.
name: Massaglia, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A significant fraction of extended radio sources presents a peculiar X-shaped radio morphology: in addition to the classical double lobed structure, radio emission is also observed along a second axis of symmetry in the form of diffuse wings or tails. We re-examine the origin of these extensions relating the radio morphology to the properties of their host galaxies. The orientation of the wings shows a striking connection with the structure of the host galaxy as they are preferentially aligned with its minor axis. Furthermore, wings are only observed in galaxies of high projected ellipticity. Hydrodynamical simulations of the radio-source evolution show that X-shaped radio-sources naturally form in this geometrical situation: as a jet propagates in a non-spherical gas distribution, the cocoon surrounding the radio-jets expands laterally at a high rate producing wings of radio emission, in a way that is reminiscent of the twin-exhaust model for radio-sources.
description: 7 pages, 6 figures, 1 table, accepted for publication in A&A
Self and Other in Aeschylus’ Persians. A propos de Gotscheff
Creators: name: Papazoglou, Eleni
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: Exponents par excellence of barbaric “otherness,” the characters in Aeschylus’ Persians pose a crucial question: how the ancient spectators negotiated their “otherness”? How did it condition their eleos (for the “other”) and phobos (for the “self”)? Did the performance produce humanitarian sympathy or did it rely on political distanciation? Focusing on the experience of the ancient spectator, as well as the modern one, the paper discusses Aeschylus’ play and a set of modern performances of it, with special emphasis on Dimiter Gotscheff’s production for the National Theatre of Greece (2009). The paper argues that, as Gotscheff’s production showed, for us today the political reading of the play (or, if you prefer, the “tragic”) cannot but rely on self-criticism, on a complex negotiation between “self ” and “other.” For us it is more interesting and politically more productive to see that our democracy may entail totalitarianism; that a political aphasia often creeps into our political logos; and finally, that our political “self” may be pregnant with our political “self”—and vice versa.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Critical behavior and the Neel temperature of quantum quasi-two-dimensional Heisenberg antiferromagnets
Creators: name: Irkhin, V. Yu.
name: Katanin, A. A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The nonlinear sigma-model and its generalization on N-component spins, the O(N) model, are considered to describe thermodynamics of a quantum quasi-two-dimensional (quasi-2D) Heisenberg antiferromagnet. A comparison with standard spin-wave approaches is performed. The sublattice magnetization, Neel temperature and spin correlation function are calculated to first order of the 1/N-expansion. A description of crossover from a 2D-like to 3D regime of sublattice magnetization temperature dependence is obtained. The values of the critical exponents derived are β=0.36, η=0.09. An account of the corrections to the standard logarithmic term of the spin-wave theory modifies considerably the value of the Neel temperature. The thermodynamic quantities calculated are universal functions of the renormalized interlayer coupling parameter. The renormalization of interlayer coupling parameter turns out to be considerably temperature dependent. A good agreement with experimental data on La2CuO4 is obtained. The application of the approach used to the case of a ferromagnet is discussed.
description: 15 pages, RevTeX, 1 figure, Phys. Rev. B, to be published
Crisis, Ruptures and the Rapture of an Imperceptible Aesthetics: A Recent History of the Hellenic Festival
Creators: name: Ioannidou, Eleftheria
name: Siouzouli, Natascha
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2014

description: The focus of this article lies on the recent history of the Hellenic Festival, discussing the so-called new phase after 2006, when Giorgos Loukos took over as artistic director. While the Festival claimed an international profile promoting collaborations with major European festivals and theatre companies, its policies had to go through restructuring due to the raging economic crisis. The years from 2010 to the present marked a rupture with previous discourses and politics, turning the Festival into a topos of transformation and fluidity which seems to elude certain conditions of production and reception pertaining to its past history. The article presents an inquiry into the official policies as much as the artistic practices which constitute this topos, while also mapping out the emergent trends which produce its particular dynamic.
description: Gramma: Journal of Theory and Criticism, Vol 22, No 2 (2014): The Geographies of Contemporary Greek Theatre: About Utopias, Dystopias and Heterotopias
Similarities and differences in Swiss general practices with and without nurse practitioners
Creators: name: Schlunegger, Margarithe Charlotte
name: Palm, Rebecca
name: Zumstein-Shaha, Maya
Publisher: name: Springer
Year: 2024
Subjects: General practices
Interprofessional team
Multiple case study design
Nurse practitioners
Primary healthcare

description: Background : New care models are needed for the increasing elderly, chronically ill, and multimorbid population, especially in primary healthcare. Rural regions are particularly affected where bottlenecks in provision of care and a shortage of health professionals are emerging. To address these challenges, nurse practitioners have been implemented in Swiss general practices to improve primary healthcare of chronically ill people. Aim : We aimed to explore Swiss primary healthcare delivery for chronically ill people in general practices with and without nurse practitioners and identify similarities and differences in these general practices. Methods : We conducted multiple case studies. Data were collected using interviews, observations, patient records, and questionnaires. We described the similarities and differences by drawing on Wagner’s Chronic Care Model and applied deductive thematic cross-case analysis. We included five general practices located in rural areas in Switzerland, with nurse practitioners in two general practices. A total of 34 patients and 26 health professionals were included. The Enhancing the QUAlity and Transparency Of health Research (EQUATOR) reporting standards for organizational case studies were used. Results : Similarities were that chronically ill patients valued to be perceived as a whole person; guidelines for multimorbidity and reimbursement of relevant services such as coordination were limited. Differences in general practices with nurse practitioners were unclear role allocation, criteria for patient referral were missing and interprofessional teams were in an extended process of change. Nurse practitioners provided a bridge between the general practices and local home healthcare organizations, thereby, strengthening interface management and obtaining a more comprehensive nursing perspective. Conclusion : This study highlights that new models of care can better respond to patients’ needs as additional nursing skills are available. Interprofessional teams undergo substantial changes in the new care model requiring a revision of existing structures.