cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diamond chemical vapor deposition on optical fibers for fluorescence waveguiding
Creators: name: Rabeau, J. R.
name: Huntington, S. T.
name: Greentree, A. D.
name: Prawer, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A technique has been developed for depositing diamond crystals on the endfaces of optical fibers and capturing the fluorescence generated by optically active defects in the diamond into the fiber. This letter details the diamond growth on optical fibers and transmission of fluorescence through the fiber from the nitrogen-vacancy (N-V) color center in diamond. Control of the concentration of defects incorporated during the chemical vapor deposition (CVD) growth process is also demonstrated. These are the first critical steps in developing a fiber coupled single photon source based on optically active defect centers in diamond.
description: 10 pages, 3 figures
Online Covid-19-related Information for Travelers: A Corpus-based Study of Modality in Airport Websites
Creators: name: Castello, Erik
Publisher: name: Iperstoria
Year: 2021
Subjects: modality; the language of tourism; Covid-19; English lingua franca; varieties of English

description: Due to the current pandemic situation, international airport hubs need to adopt special procedures and distancing technology solutions to protect the health of travelers and employees (Sigala 2020). This paper explores the language of the sections of international airports’ websites specifically devoted to Covid-19-related issues and procedures, an emerging type of discourse dynamically reflecting the evolving situation. Like other types of specialized discourse, these informative and regulatory texts present “interdiscoursive” features (Bhatia 2010) borrowed from other genres, mainly legal English (Maci 2013). The paper presents the results of an investigation into the use of modality in a specially compiled 126,000-word corpus of texts concerning major British, North American, central European (Dutch and German) and Italian airports. The findings revealed differences among the four varieties, concerning the frequency and use of core modals, semi-modals, and some suasive verbs and their nominalizations identified through the analysis of keywords. The British websites feature the largest amount of core- and semi-modals, followed by the central European ones. The American texts score the third lowest number of core- and semi-modals and the highest number of suasive verbs/nominalizations, while the Italian sub-corpus presents the lowest values for all the categories, with the exception of the suasive verb recommend, which they employ extensively. Must is used the most in the central European texts, probably because of L1 interference, while recommend is at times erroneously used by the Italian writers. The paper discusses these and other findings and their implications for prospective writers of such texts.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Simulating the inflation of bubbles by late jets in core collapse supernova ejecta
Creators: name: Akashi, Muhammad
name: Soker, Noam
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We conducted three-dimensional hydrodynamical simulations to study the interaction of two late opposite jets with the ejecta of a core collapse supernova (CCSN), and study the bipolar structure that results from this interaction as the jets inflate hot-low-density bubbles. The newly born central object, a neutron star (NS; or a black hole), launches these jets at about 50 to 100 days after explosion. The bubbles cross the photosphere in the polar directions at much earlier times than the regions at the same radii near the equatorial plane. The hot bubbles releases more radiation and the photosphere recedes more rapidly in the tenuous bubble. Our results strengthen earlier claims that were based on toy models that such an interaction might lead to a late peak in the light curve, and that an equatorial observer might see a rapid drop in the light curve. Our results might have implications to much earlier jets that explode the star, either jets that the newly born NS launches in a CCSN, or jets that a NS companion that merges with the core of a massive star launches in a common envelope jets supernova (CEJSN) event. Our results add indirect support to the CEJSN scenario for fast blue optical transients, e.g., AT2018cow, ZTF18abvkwla, and CSS161010.
description: Accepted for publication in MNRAS
Rampal Coal-Fired Power Station: Evaluating Its Impacts on the Biodiversity and Ecosystem Resilience of the Sundarbans (Bangla Version)
Creators: name: Zaman, Md
Publisher: name: Zenodo
Year: 2024

description: Abstract

The Rampal Power Station (RPS), a 1,320-megawatt coal-fired power plant in Bangladesh, has generated substantial controversy due to its proximity to the Sundarbans, the world’s largest mangrove forest and a UNESCO World Heritage and a Ramsar site. The plant, a joint venture between Bangladesh and India, was initiated to address regional energy needs. Environmental concerns associated with the RPS include forest fragmentation, air and water pollution, habitat destruction, and threats to biodiversity. The plant's coal combustion process would release harmful pollutants, and coal transportation and waste disposal could likely introduce additional pollutants that could affect soil, water, air quality, and human health. Together these factors could potentially disrupt the Sundarbans’ delicate ecosystem. Socio-economic impacts are also significant, with potential reductions in resources vital for local communities, including fishing and agriculture, and health risks from increased pollution. The broader implications include potential climate change effects, such as altered weather patterns and increased salinity intrusion. The paper suggests implementing advanced pollution control technologies, strict environmental regulation enforcement, and a shift towards renewable energy sources to mitigate these impacts. Restoring and expanding mangrove forests is also recommended to counterbalance some ecological damage. The RPS represents a complex challenge where the benefits of increased energy production must be carefully weighed against the substantial ecological and socio-economic costs.

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Keywords: Sundarbans, coal-fired powerplant, mangrove forest, ecological significance, climate change
The variable and non-variable X-ray absorbers in Compton-thin type-II Active Galactic Nuclei
Creators: name: Laha, Sibasish
name: Markowitz, Alex G.
name: Krumpe, Mirko
name: Nikutta, Robert
name: Rothschild, Richard
name: Saha, Tathagata
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have conducted an extensive X-ray spectral variability study of a sample of 20 Compton-thin type II galaxies using broad band spectra from XMM-Newton, Chandra, and Suzaku. The aim is to study the variability of the neutral intrinsic X-ray obscuration along the line of sight and investigate the properties and location of the dominant component of the X-ray-obscuring gas. The observations are sensitive to absorption columns of $N_{\rm H} \sim 10^{20.5-24} {\rm cm^{-2}}$ of fully- and partially-covering neutral and/or lowly-ionized gas on timescales spanning days to well over a decade. We detected variability in the column density of the full-covering absorber in 7/20 sources, on timescales of months-years, indicating a component of compact-scale X-ray-obscuring gas lying along the line of sight of each of these objects. Our results imply that torus models incorporating clouds or overdense regions should account for line of sight column densities as low as $\sim$ a few $\times 10^{21}$ cm$^{-2}$. However, 13/20 sources yielded no detection of significant variability in the full-covering obscurer, with upper limits to $ΔN_{\rm H}$ spanning $10^{21-23}$ cm$^{-2}$. The dominant absorbing media in these systems could be distant, such as kpc-scale dusty structures associated with the host galaxy, or a homogeneous medium along the line of sight. Thus, we find that overall, strong variability in full-covering obscurers is not highly prevalent in Compton-thin type IIs, at least for our sample, in contrast to previous results in the literature. Finally, 11/20 sources required a partial-covering, obscuring component in all or some of their observations, consistent with clumpy near-Compton-thick compact-scale gas.
description: Accepted for publication in ApJ
The Promotion of the Veneto Territory in Times of Crisis: A Discourse Analysis of a Tourist Board Website during the Covid-19 Pandemic
Creators: name: Cesiri, Daniela
Publisher: name: Iperstoria
Year: 2021
Subjects: the language of tourism; discourse analysis; presupposition; Veneto tourism promotion; Covid-19 tourism

description: The study investigates the effects of the Covid-19 pandemic on institutional tourism communication. In view of the necessary changes occurred in the tourism field since the start of the pandemic, a comparison will be made with the results of a previous study on the English and the Italian versions of the seven tourism board websites corresponding to the seven “provinces” in the Veneto region (Cesiri 2019). The present study analyses the changes in the communicative strategies used by the tourist board website of the Veneto Region, that collects all the websites of the provinces, examining how the territory is presented to prospective visitors as well as how the website informs prospective visitors about the pandemic and the regulations in place to prevent contagion. The Italian and the English versions of the website are investigated using Fairclough’s (2003) approach to discourse analysis. Particularly relevant is the notion of ‘presupposition,’ namely any kind of background assumption that is present in a text. Levels of presupposition are investigated considering not only the territorial description and promotion but also elements of specialized communication about the pandemic, its outcomes, and the corresponding restrictions and regulations that are in place at the moment of writing and that will presumably still be in place in the near future. Results show that some territories do not provide any mention to restrictions, while others provide only superficial mentions to safety measures or external links to the website of the Italian Ministry of Health.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
“We Look Forward to Seeing You”: Air Travel Digital Discourse in the Post-peak Pandemic Period
Creators: name: Tommaso, Laura
Publisher: name: Iperstoria
Year: 2021
Subjects: Corporate discourse; air travel digital discourse; discourse analysis; corpus linguistics; Covid-19.

description: The unfolding of the Covid-19 crisis has had a detrimental impact on global travel and tourism. In particular, the air transport industry has been affected severely and will need to undergo radical change to still be operating in the aftermath of the pandemic. Within the framework of Corporate Discourse Studies, and relying on a corpus-assisted discourse analysis approach, the current article explores how airlines use online language to neutralize the discourses that create distrust and to highlight their achievements and commitment in order to encourage air travel in the post-peak period. This analysis is meant to empirically contribute to the existing literature on the topic of trust in corporate discourse and communication by shedding some light on the discursive strategies employed by airline companies to (re)construct travel experience in time of crisis.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
DNA-decorated carbon nanotubes for chemical sensing
Creators: name: Staii, Cristian
name: Chen, Michelle
name: Gelperin, Alan
name: Johnson, Alan T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate a new, versatile class of nanoscale chemical sensors based on single-stranded DNA (ss-DNA) as the chemical sensors recognition site and single-walled carbon nanotube field effect transistors (swCN-FET) as the electronic read-out component. swCN-FETs with a nanoscale coating of ss-DNA respond to gas odors that do not cause a detectable conductivity change in bare devices. Responses of ss-DNA/swCN-FETs differ in sign and magnitude for different gases, and can be tuned by choosing the base sequence of the ss-DNA. ss-DNA/swCN-FET sensors detect a variety of odors, with rapid response and recovery times on the scale of seconds. The sensor surface is self-regenerating: samples maintain a constant response with no need for sensor refreshing through at least 50 gas exposure cycles. This very remarkable set of attributes makes sensors based on ss-DNA decorated nanotubes very promising for "electronic nose" and "electronic tongue" applications ranging from homeland security to disease diagnosis.
description: 9 pages, 5 figures, Nano Letters web release: 23-Aug-2005
Additional file 3 of Outcomes of a funding initiative to promote allied health research activity: a qualitative realist evaluation
Creators: name: Hilder, Joanne
name: Mickan, Sharon
name: Noble, Christy
name: Weir, Kelly A.
name: Wenke, Rachel
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 3. Outcome sub-themes of funding for research initiative.
EINFLUSS DER BIOGASERZEUGUNG AUF LANDWIRTSCHAFTLICHE PACHTPREISE IN DEUTSCHLAND
Creators: name: Breustedt, Gunnar
name: Habermann, Hendrik
name: Breustedt, Gunnar
name: Habermann, Hendrik
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Biogas
subject: Erneuerbare-Energien-Gesetz
subject: Pachtpreise
subject: räumliche Ökonometrie

description: Auf Grundlage der garantierten Einspeisevergütungen des Erneuerbaren-Energien-Gesetzes sind in den vergangenen Jahren vermehrt Biogasanlagen auf Basis landwirtschaftlichen Energiepflanzenanbaus errichtet worden. Das Ziel dieses Beitrages ist es zu prüfen, inwiefern aus der gestiegenen Biogaserzeugung Effekte auf landwirtschaftliche Pachtpreise resultieren. Die Quantifizierung dieser Effekte wird durch eine räumlich-ökonometrische ex post Analyse einzelbetrieblicher Neupachtpreisdaten vorgenommen. Die Daten stammen aus den Agrarstrukturerhebungen der Jahre 2007 und 1999. Sie erlauben die Berechnung von Pachtpreisen der in 2005 und 2006 neu abgeschlossenen Pachtverträge. Die Methode berücksichtigt explizit einen räumlichen Pachtpreiszusammenhang zwischen benachbarten Landwirten. Die landwirtschaftliche Biogaserzeugung, gemessen als einzelbetrieblicher Anbauanteil von Energiepflanzen zur Biogaserzeugung, erhöht die Neupachtpreise in Westdeutschland signifikant. Die geschätzte Summe an zusätzlicher jährlicher Pachtzahlung, hervorgerufen durch die Biogaserzeugung, beträgt bei Hochrechnung auf die gesamte Pachtfläche Westdeutschlands – je nach Modellspezifikation – etwa 7 bis 9 Mio. €.
description: A2_3
Topological data analysis model for the spread of the coronavirus
Creators: name: Chen, Yiran
name: Volic, Ismar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We apply topological data analysis, specifically the Mapper algorithm, to the U.S. COVID-19 data. The resulting Mapper graphs provide visualizations of the pandemic that are more complete than those supplied by other, more standard methods. They encode a variety of geometric features of the data cloud created from geographic information, time progression, and the number of COVID-19 cases. They reflect the development of the pandemic across all of the U.S. and capture the growth rates as well as the regional prominence of hot-spots. The Mapper graphs allow for easy comparisons across time and space and have the potential of becoming a useful predictive tool for the spread of the coronavirus.
description: 22 pages, many figures, comments welcome
Promoting Hotels in the Covid-19 Era: An Exploratory Review of UK Hotels’ New Challenges
Creators: name: Ruffolo, Ida
name: Jimenez, Jean Marguerite
Publisher: name: Iperstoria
Year: 2021
Subjects: language of tourism; promotional discourse; Covid-19; hotel industry; corpus linguistics

description: The related large-scale travel restrictions ensuing the ongoing Covid-19 pandemic have had a devastating impact on the global tourism and hospitality industry. In particular, the hotel industry is proving to be the hardest hit by the pandemic due to reduced tourism and travel along with a slowdown in economic activity (Hoisington 2020). In order to attract potential guests, hotels need to focus on consumers’ changing concerns and accommodate their legitimate requests, i.e., health safety measures and cancellation policies (UNWTO 2020). In light of this, the aim of this exploratory study is to understand to what extent hoteliers are reorganizing hotel stays to satisfy consumers’ new demands while restoring travelers’ confidence and respecting the strict safety regulations. In particular, this paper explores the crucial role of language in the hospitality sector, focusing on the linguistic devices employed by hotels on their websites to promote their facilities and services, which must now respect the strict new health and hygiene regulations imposed by the pandemic. Specifically, quantitative and qualitative methods were used to analyse a corpus of luxury hotel websites in Central England in order to examine: (i) the content included on the hotels’ websites; (ii) the language employed to promote stays during the Covid era. The preliminary findings contribute to an initial understanding of luxury hotel practices and initiatives during Covid-19 within the UK context. The results show that that there is a clear effort by luxury hotels to create a positive image as strong companies ready to face the challenges of a global pandemic. Specifically, the findings illustrate how hotels are using particular expressions to provide information related to the actions that they are taking to guarantee a safe environment, while highlighting the important role that visitors must also play in ensuring safety.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
A study of public post-secondary entrepreneurship education in British Columbia : the possibilities and challenges of an integrated approach
Creators: name: Myrah, Kyleen
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to document the current provision o f public post-secondary undergraduate entrepreneurship courses and programs in British Columbia through curriculum analysis and interviews with educators, in order to explore the possibilities and challenges of an integrated approach. An integrated approach to entrepreneurship education involves elements of what is valued from both a liberal and vocational context. Two key questions guided this study: What is the state of undergraduate entrepreneurship education in public post-secondary institutions in British Columbia? What needs to happen in order to bring an integrated approach to entrepreneurship education? Entrepreneurship curriculum documents were reviewed through content analysis to achieve a broad mapping of the undergraduate post-secondary entrepreneurship education environment in British Columbia. By conducting 12 semi-structured, in-depth interviews with educators working in the entrepreneurship field, these materials were brought to life by the people who actually developed and used them in their educational practice. Four major findings emerged from the study. Entrepreneurship is not yet well established in the public post-secondary context in British Columbia, as evidenced by the programming offered at the undergraduate level. There is diversity in philosophies of entrepreneurship education, from technical, skill-based approaches, to broader and more expanded approaches. Educators do identify entrepreneurship as its own field of education, distinct from closely related areas such as management and small business. They also recognize there are challenges in their practice that exist at the market, institutional, collegial, and student level, which influence the development of the field and how it is supported and positioned in the public post-secondary context in British Columbia. These issues have created dilemmas and pedagogical challenges for educators including student expectations and demands, lack of resources, institutional limitations, teaching frustrations, time constraints and the inadequate treatment of ethics, and a lack of faculty willing to work in the entrepreneurship area. The study concludes with strategies for educators, and outlines several recommendations to support an integrated approach to entrepreneurship education.
The Cineautistic Detective: Steve Erickson’s “Zeroville” and the New Hollywood Novel
Creators: name: Di Vilio, Antonio
Publisher: name: Iperstoria
Year: 2021
Subjects: Steve Erickson; Zeroville; noir; New Hollywood; pop culture

description: This article proposes a reading of Steve Erickson’s Zeroville (2007) as a post-noir mystery novel in which the ‘cineautistic’ detective Vikar, haunted by the ghosts of his Hollywood myths, brings out the cultural meaning behind the fatal date 1969. Going beyond the tropes of the Hollywood Novel, as a solitary detective who tries to relate to the fragmented space that surrounds him, Vikar will shed some light not so much on the industry’s dehumanizing capabilities—which the classic Hollywood novels aimed to uncover—but on the force of the medium and its conventions. Vikar’s great skills as a film editor will piece together the clues in order to solve a metaphysical cinematic mystery and to confront the cultural transition represented by the New Hollywood and television. As Zeroville’s storyworld proves to be rooted in film experience, this essay also aims to detect the cinematic references and to analyze their meaning in relation to the novel’s discourse on medium.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Gauge invariant Lagrangian for non-Abelian tensor gauge fields of fourth rank
Creators: name: Savvidy, G.
name: Tsukioka, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using generalized field strength tensors for non-Abelian tensor gauge fields one can explicitly construct all possible Lorentz invariant quadratic forms for rank-4 non-Abelian tensor gauge fields and demonstrate that there exist only two linear combinations of them which form a gauge invariant Lagrangian. Together with the previous construction of independent gauge invariant forms for rank-2 and rank-3 tensor gauge fields this construction proves the uniqueness of early proposed general Lagrangian up to rank-4 tensor fields. Expression for the coefficients of the general Lagrangian is presented in a compact form.
description: 27 pages, LaTex file
Black-Hole evaporation and Quantum-depletion in Bose-Einstein condensates
Creators: name: Arraut, Ivan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the analogy between the Hawking radiation in Black-Holes and the Quantum depletion process of a Bose-Einstein condensate by using the Bogoliubov transformations method. We find that the relation between the Bogoliubov coefficients is similar in both cases (in the appropriate regimes). We then connect the condensate variables with those associated to the Black-Hole, demonstrating then that the zero temperature regime of the condensate is equivalent to the existence of an event horizon in gravity.
description: Published version, 11 pages
Additional file 3 of Factors influencing sedentary behaviours after stroke: findings from qualitative observations and interviews with stroke survivors and their caregivers
Creators: name: Hall, Jennifer
name: Morton, Sarah
name: Fitzsimons, Claire F.
name: Hall, Jessica Faye
name: Rekesh Corepal
name: English, Coralie
name: Forster, Anne
name: Lawton, Rebecca
name: Patel, Anita
name: Mead, Gillian
name: Clarke, David J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3.
Entanglement Clustering for ground-stateable quantum many-body states
Creators: name: Matty, Michael
name: Zhang, Yi
name: Senthil, T.
name: Kim, Eun-Ah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Despite their fundamental importance in dictating the quantum mechanical properties of a system, ground states of many-body local quantum Hamiltonians form a set of measure zero in the many-body Hilbert space. Hence determining whether a given many-body quantum state is ground-stateable is a challenging task. Here we propose an unsupervised machine learning approach, dubbed the Entanglement Clustering ("EntanCl"), to separate out ground-stateable wave functions from those that must be excited state wave functions using entanglement structure information. EntanCl uses snapshots of an ensemble of swap operators as input and projects this high dimensional data to two-dimensions, preserving important topological features of the data associated with distinct entanglement structure using the uniform manifold approximation and projection (UMAP). The projected data is then clustered using K-means clustering with $k=2$. By applying EntanCl to two examples, a one-dimensional band insulator and the two-dimensional toric code, we demonstrate that EntanCl can successfully separate ground states from excited states with high computational efficiency. Being independent of a Hamiltonian and associated energy estimates, EntanCl offers a new paradigm for addressing quantum many-body wave functions in a computationally efficient manner.
description: 9 pages, 7 figures
Topological mass mechanism and exact fields mapping
Creators: name: Amaral, R. L. P. G.
name: Ventura, O. S.
name: Buffon, L. O.
name: Costa, J V
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a class of mappings between models with topological mass mechanism and purely topological models in arbitrary dimensions. These mappings are established by directly mapping the fields of one model in terms of the fields of the other model in closed expressions. These expressions provide the mappings of their actions as well as the mappings of their propagators. For a general class of models in which the topological model becomes the BF model the mappings present arbitrary functions which otherwise are absent for Chern-Simons like actions. This work generalizes the results of [1] for arbitrary dimensions.
description: 11 pages
MÖGLICHKEITEN UND GRENZEN DER POLITIKANALYSE ZUR UMSETZUNG DER WASSERRAHMENRICHTLINIE -- ANWENDUNG EINES HYDRO-ÖKONOMISCHEN MODELLVERBUNDES FÜR DAS WESER EINZUGSGEBIET
Creators: name: Kreins, Peter
name: Heidecke, Claudia
name: Goemann, Horst
name: Hirt, Ulrike
name: Wendland, Frank
name: Kreins, Peter
name: Heidecke, Claudia
name: Goemann, Horst
name: Hirt, Ulrike
name: Wendland, Frank
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: EU-Wasserrahmenrichtlinie
subject: landwirtschaftliche Einträge in die Gewässer
subject: hydroökonomische Modellierung
subject: RAUMIS
subject: kosteneffiziente Maßnahmen

description: Landwirtschaftliche Maßnahmen zur Verbesserung des Gewässerschutzes gewinnen zunehmend an Bedeutung, da die Bewirtschaftungsziele der Wasserrahmenrichtlinie in vielen Regionen nicht erfüllt werden können und alle Sektoren aufgefordert sind, weitere Handlungen zu tätigen. Die Möglichkeiten und Grenzen von Politikanalysen im landwirtschaftlichen Gewässerschutz werden am Beispiel eines interdisziplinären Modellverbundes diskutiert. Dabei wird ein Ansatz vorgestellt, der ausgehend von der Nährstoffbilanzierung unter Berücksichtigung der Nährstoffabbauprozesse im Boden den Handlungsbedarf zur Erreichung der Bewirtschaftungsziele der Wasserrahmenrichtlinie und mögliche Maßnahmenpakete mit Hilfe eines hydro-ökonomischen Modellverbundes untersucht. Durch die Kopplung hydrologischer (MONERIS und GROWA/WEKU) und ökonomischer Modelle (RAUMIS) ist eine umfassendere Darstellung von Verursachern und Gefährdungen im Gewässerschutz möglich. Gleichzeitig birgt die Modellierung aber auch Grenzen für die Politikberatung, vor Allem im Bezug auf standortbezogene Analysen von Wirkungen und Kosten, Abbildungsbereich sowie die Kosten des Ansatzes, die in diesem Artikel diskutiert werden.
description: A3_1
English Tourism Discourse: Insights into the Professional, Promotional and Digital Language of Tourism. Stefania M. Maci
Creators: name: Mattei, Elena
Publisher: name: Iperstoria
Year: 2021
Subjects: English tourism discourse; specialized languages; generic analysis; corpus-based approach; promotional discourse

description: Review of English Tourism Discourse: Insights into the Professional, Promotional and Digital Language of Tourism by Stefania M. Maci
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Distant Horizons: Digital Evidence and Literary Change. Ted Underwood
Creators: name: Crescini, Alice
Publisher: name: Iperstoria
Year: 2021
Subjects: Digital Humanities, distant reading, literary theory, review

description: Review of Distant Horizons: Digital Evidence and Literary Change by Ted Underwood.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Additional file 2 of Factors influencing sedentary behaviours after stroke: findings from qualitative observations and interviews with stroke survivors and their caregivers
Creators: name: Hall, Jennifer
name: Morton, Sarah
name: Fitzsimons, Claire F.
name: Hall, Jessica Faye
name: Rekesh Corepal
name: English, Coralie
name: Forster, Anne
name: Lawton, Rebecca
name: Patel, Anita
name: Mead, Gillian
name: Clarke, David J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2.
Schwarzschild and Birkhoff a la Weyl
Creators: name: Deser, S.
name: Franklin, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide a simple derivation of the Schwarzschild solution in General Relativity, generalizing an early approach by Weyl, to include Birkhoff's theorem: constancy of the mass; its deeper, Hamiltonian, basis is also given. Our procedure is illustrated by a parallel derivation of the Coulomb field and constancy of electric charge, in electrodynamics.
description: 8 pages. Clarifying remarks and historic references added, accepted for publication in Amer. J. Phys
Non praticare il cannibalismo. 100 poesie. Ron Padgett, Paola Del Zoppo, Cristina Consiglio and Riccardo Frolloni
Creators: name: Demichelis, Serena
Publisher: name: Iperstoria
Year: 2021
Subjects: poetry; New York School; translation; review

description: Review of Non praticare il cannibalismo. 100 poesie by Ron Padgett. Edited by Paola Del Zoppo and Cristina Consiglio. Translated by Riccardo Frolloni
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
THE MARGINAL COST OF AGRI-ENVIRONMENTAL SERVICES
Creators: name: Sauer, Johannes
name: Wossink, Ada
name: Sauer, Johannes
name: Wossink, Ada
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Research Methods/ Statistical Methods
subject: agri-environmental services
subject: bio-economic modelling
subject: economies of scale and scope

description: We provide a new approach for assessing the cost of marginal ecosystem changes and the effectiveness of agri-environmental schemes. The approach is based on a theoretical and empirical analysis of the bio-economic production interactions between marketed outputs and non-marketed ecosystem services at the micro level. To frame the economic nature of the problem, we employ a generalized joint production model in combination with cost minimization. The generalized joint production framework allows for the consideration of complementary, substitutive and competitive relationships between agricultural production and non-marketed ecosystem services generation and avoids double counting. From this theoretical model we distinguish three theoretical cases depending on the imposed minimum acceptable level of the non-marketed ecosystem services. We employ farm level panel data for the UK to empirically investigate these cases. More specifically, to represent and evaluate the production structure, we estimate first- and second-order elasticities derived from a flexible transformation function. Results show that the majority of farms produce agricultural output and ecosystem services in a complementary relationship. Generation of multiple ecosystem services on the same farm showed either a substitutive or competitive relationship. A change in the composition of the ecosystem services output would have very different implications for individual farms.
description: A3_2
Axioms for higher torsion invariants of smooth bundles
Creators: name: Igusa, Kiyoshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 55R40;19J10

description: We explain the relationship between various characteristic classes for smooth manifold bundles known as ``higher torsion'' classes. We isolate two fundamental properties that these cohomology classes may or may not have: additivity and transfer. We show that higher Franz-Reidemeister torsion and higher Miller-Morita-Mumford classes satisfy these axioms. Conversely, any characteristic class of smooth bundles satisfying the two axioms must be a linear combination of these two examples. We also show how higher torsion invariants can be computed using only the axioms. Finally, we explain the conjectured formula of S. Goette relating higher analytic torsion classes and higher Franz-Reidemeister torsion.
description: 24 pages, 0 figures
Sign non-reversal property for totally non-negative and totally positive matrices, and testing total positivity of their interval hull
Creators: name: Choudhury, Projesh Nath
name: Kannan, M. Rajesh
name: Khare, Apoorva
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15B48 (primary), 15A24, 65G30 (secondary)

description: A matrix $A$ is totally positive (or non-negative) of order $k$, denoted $TP_k$ (or $TN_k$), if all minors of size $\leq k$ are positive (or non-negative). It is well-known that such matrices are characterized by the variation diminishing property together with the sign non-reversal property. We do away with the former, and show that $A$ is $TP_k$ if and only if every submatrix formed from at most $k$ consecutive rows and columns has the sign non-reversal property. In fact this can be strengthened to only consider test vectors in $\mathbb{R}^k$ with alternating signs. We also show a similar characterization for all $TN_k$ matrices - more strongly, both of these characterizations use a single vector (with alternating signs) for each square submatrix. These characterizations are novel, and similar in spirit to the fundamental results characterizing $TP$ matrices by Gantmacher-Krein [Compos. Math. 1937] and $P$-matrices by Gale-Nikaido [Math. Ann. 1965]. As an application, we study the interval hull $\mathbb{I}(A,B)$ of two $m \times n$ matrices $A=(a_{ij})$ and $B = (b_{ij})$. This is the collection of $C \in \mathbb{R}^{m \times n}$ such that each $c_{ij}$ is between $a_{ij}$ and $b_{ij}$. Using the sign non-reversal property, we identify a two-element subset of $\mathbb{I}(A,B)$ that detects the $TP_k$ property for all of $\mathbb{I}(A,B)$ for arbitrary $k \geq 1$. In particular, this provides a test for total positivity (of any order), simultaneously for an entire class of rectangular matrices. In parallel, we also provide a finite set to test the total non-negativity (of any order) of an interval hull $\mathbb{I}(A,B)$.
description: Final version, to appear in Bulletin of the London Mathematical Society. 9 pages, no figures
La grande distruzione. Jessica Powell e Zara De Min
Creators: name: Melodia Festa, Beatrice
Publisher: name: Iperstoria
Year: 2021
Subjects: cyberfiction; literary criticism; technology; Powell

description: Recensione de La grande distruzione di Jessica Powell, tradotto da Zara De Min
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Robust Sound Source Tracking Using SRP-PHAT and 3D Convolutional Neural Networks
Creators: name: Diaz-Guerra, David
name: Miguel, Antonio
name: Beltran, Jose R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we present a new single sound source DOA estimation and tracking system based on the well-known SRP-PHAT algorithm and a three-dimensional Convolutional Neural Network. It uses SRP-PHAT power maps as input features of a fully convolutional causal architecture that uses 3D convolutional layers to accurately perform the tracking of a sound source even in highly reverberant scenarios where most of the state of the art techniques fail. Unlike previous methods, since we do not use bidirectional recurrent layers and all our convolutional layers are causal in the time dimension, our system is feasible for real-time applications and it provides a new DOA estimation for each new SRP-PHAT map. To train the model, we introduce a new procedure to simulate random trajectories as they are needed during the training, equivalent to an infinite-size dataset with high flexibility to modify its acoustical conditions such as the reverberation time. We use both acoustical simulations on a large range of reverberation times and the actual recordings of the LOCATA dataset to prove the robustness of our system and its good performance even using low-resolution SRP-PHAT maps.
description: This is a pre-print of an article published in IEEE/ACM Transactions on Audio Speech and Language Processing. The code to reproduce this work can be found in our GitHub repository: https://github.com/DavidDiazGuerra/Cross3D
La scimmia retorica. Teoria della critica letteraria afro-americana. Henry Louis Gates, Jr e Anna Scannavini
Creators: name: Bordin, Elisa
Publisher: name: Iperstoria
Year: 2021
Subjects: African American literature; Henry Louis Gates; The Signifying Monkey; review

description: Recensione de La scimmia retorica. Teoria della critica letteraria afro-americana di Henry Louis Gates, Jr. Introduzione, cura e traduzione di Anna Scannavini.
description: Iperstoria, No 18 (2021): Tourism Discourse in the 21st Century: Challenges and New Directions
Additional file 2 of Outcomes of a funding initiative to promote allied health research activity: a qualitative realist evaluation
Creators: name: Hilder, Joanne
name: Mickan, Sharon
name: Noble, Christy
name: Weir, Kelly A.
name: Wenke, Rachel
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 2. Interview guide.
A Chandra ACIS view of the Thermal Composite Supernova Remnant 3C391
Creators: name: Chen, Yang
name: Su, Yang
name: Slane, Patrick O.
name: Wang, Q. Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a 60 ks Chandra ACIS-S observation of the thermal composite supernova remnant 3C391. The southeast-northwest elongated morphology is similar to that previously found in radio and X-ray studies. This observation unveils a highly clumpy structure of the remnant. Detailed spatially resolved spectral analysis for the small-scale features reveals that the interior gas is generally of normal metal abundance and has approached or basically reached ionization equilibrium. The hydrogen column density increases from southeast to northwest. Three mechanisms, radiative rim, thermal conduction, and cloudlet evaporation, may all play roles in the X-ray appearance of 3C391 as a "thermal composite" remnant, but there are difficulties with each of them in explaining some physical properties. Comparatively, the cloudlet evaporation model is favored by the main characteristics such as the highly clumpy structure and the uniform temperature and density distribution over most of the remnant. The directly measured postshock temperature also implies a young age, about 4 kyr, for the remnant. The postshock gas pressure derived from the NE and SW rims, which harbor maser spots, is consistent with the estimate for the maser regions. An unresolved X-ray source is observed on the northwest border and its spectrum is best fitted by a power-law.
description: aastex, 27 pages (including 4 figures), to appear in the ApJ 1 Dec. 2004, v616 issue
WER SCHÜTZT DAS GRÜNLAND? – ANALYSEN ZUR DYNAMIK DES DAUERGRÜNLANDS UND ENTSPRECHENDER SCHUTZMECHANISMEN
Creators: name: Nitsch, Heike
name: Osterburg, Bernhard
name: Laggner, Birgit
name: Roggendorf, Wolfgang
name: Nitsch, Heike
name: Osterburg, Bernhard
name: Laggner, Birgit
name: Roggendorf, Wolfgang
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: Agrarumweltpolitik
subject: InVeKoS-Daten
subject: Landnutzung
subject: Grünlandumbruch

description: Die Umwandlung von Dauergrünland in Ackerland kann je nach Standort diverse ökologische Funktionen in den Bereichen Biodiversität sowie Klima-, Wasser und Bodenschutz beeinträchtigen. Durch Cross Compliance ist Grünlandverlust auch agrarpolitisch relevant. Das Monitoring im Rahmen von Cross Compliance auf Ebene der Bundesländer ist für ökologische Aspekte jedoch wenig aussagkräftig. In diesem Beitrag werden Ergebnisse aus Analysen zur Dynamik des Dauergrünlands zwischen den Jahren 2005 und 2007aufgezeigt. Diese wurden am Beispiel von vier Bundesländern mit Hilfe von Daten des Integrierten Verwaltungs- und Kontrollsystems (InVeKoS) und weiteren flächenspezifischen Fachinformationen durchgeführt. Dabei zeigte sich, dass neben der Umwandlung in Ackerland auch die „De-Aktivierung“ von im Jahr 2005 im InVeKoS gemeldeten Grünlandflächen eine Rolle spielte, da für relevante Flächenumfänge in den Folgejahren keine Anträge mehr gestellt wurden. Auf ökologisch sensiblen Standorten sind zum Teil deutliche Schutzeffekte sichtbar, jedoch konnte auch in diesen Kulissen, z.B. auf Moorböden, eine Umwandlung von Grünland nachgewiesen werden. Vor diesem Hintergrund werden anschließend bestehende beihilfe- und fachrechtliche Regelungen aus Agrar- und Umweltpolitik hinsichtlich möglicher Schutzwirkungen für Grünland betrachtet.
description: A3_3
Additional file 1 of Factors influencing sedentary behaviours after stroke: findings from qualitative observations and interviews with stroke survivors and their caregivers
Creators: name: Hall, Jennifer
name: Morton, Sarah
name: Fitzsimons, Claire F.
name: Hall, Jessica Faye
name: Rekesh Corepal
name: English, Coralie
name: Forster, Anne
name: Lawton, Rebecca
name: Patel, Anita
name: Mead, Gillian
name: Clarke, David J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Big extra dimensions make Lambda too small
Creators: name: Sorkin, Rafael D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I argue that the true quantum gravity scale cannot be much larger than the Planck length, because if it were then the quantum gravity-induced fluctuations in $\Lam$ would be insufficient to produce the observed cosmic ``dark energy''. If one accepts this argument, it rules out scenarios of the ``large extra dimensions'' type. I also point out that the relation between the lower and higher dimensional gravitational constants in a Kaluza-Klein theory is precisely what is needed in order that a black hole's entropy admit a consistent higher dimensional interpretation in terms of an underlying spatio-temporal discreteness.
description: plainTeX, 9 pages, no figures To appear in a special issue of the Brazilian Journal of Physics devoted to the Proceedings of the Second International Workshop ``DICE 2004'' held September, 2004, Piombino, Italy. MOST CURRENT VERSION available at http://www.physics.syr.edu/~sorkin/some.papers/ or wherever my home-page is