cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Long range dark matter self-interactions and plasma instabilities
Creators: name: Lasenby, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: So far, the observed effects of dark matter are compatible with it having purely gravitational interactions. However, in many models, dark matter has additional interactions with itself, with the Standard Model, and/or with additional hidden sector states. In this paper, we discuss models in which dark matter interacts through a light vector mediator, giving rise to a long-ranged force between dark matter particles. Coherent scattering effects through this force can lead to the exponential growth of small perturbations, in analogy to electromagnetic plasma instabilities. These instabilities can be significant at couplings many orders of magnitude below those for which the usual particle-by-particle constraints on dark matter self-interactions apply. While this possibility has been noted in the literature, we provide the first systematic study of such instabilities, including the case where the mediator has finite mass. The latter is relevant for models of kinetically mixed `dark photon' mediators, which represent an important target for proposed dark matter detection experiments. Our analyses are of the growth of small perturbations, so do not immediately provide observational constraints on dark matter models - however, they do motivate further study of large regions of parameter space.
description: 43 pages, 12 figures; matches version published in JCAP
Additional file 6 of Impacts of drug resistance mutations on the structural asymmetry of the HIV-2 protease
Creators: name: Laville, Pierre
name: Fartek, Sandrine
name: Cerisier, Natacha
name: Flatters, Delphine
name: Petitjean, Michel
name: Regad, Leslie
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Additional file 6. Interaction between PR2 and three drugs (APV, DRV, and IDV).
The Berry Phase Rectification Tensor and The Solar Rectification Vector
Creators: name: Matsyshyn, O.
name: Dey, Urmimala
name: Sodemann, I.
name: Sun, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We introduce an operational definition of the Berry Phase Rectification Tensor as the second-order change of polarization of a material in response to an ideal short pulse of an electric field. Under time-reversal symmetry this tensor depends exclusively on the Berry phases of the Bloch bands and not their energy dispersions, making it an intrinsic property to each material which contains contributions from both the inter-band shift currents and the intra-band Berry Curvature Dipole. We also introduce the Solar Rectification Vector as a technologically relevant figure of merit for a bulk photo-current generation under ideal black-body radiation in analogy with the classic solar cell model of Shockley and Queisser. We perform first-principles calculations of the Berry Phase Rectification Tensor and the Solar Rectification Vector for the Weyl semimetal TaAs and the insulator LiAsSe2 which features large shift currents close to the peak of solar radiation intensity.
description: 13 pages, 5 figures
Additional file 7 of Impacts of drug resistance mutations on the structural asymmetry of the HIV-2 protease
Creators: name: Laville, Pierre
name: Fartek, Sandrine
name: Cerisier, Natacha
name: Flatters, Delphine
name: Petitjean, Michel
name: Regad, Leslie
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Additional file 7. Residues involved in the interface of the wild-type PR2 dimer.
Beyond storage : working memory and specific language impairment
Creators: name: Moser, Rachel Megan
Publisher: name: University of British Columbia
Year: 2009

description: This study examined the auditory-verbal and visual-spatial working memory of children with Specific Language Impairment (SLI). In particular, the ability of 12 children with SLI (age 7-11 years) to coordinate storage and processing demands and manage information from different modalities was compared to that of a group of peers with normal language development. All children completed 6 working memory tasks. Two tasks tapped auditory-verbal working memory; children repeated auditorally presented words (storage) in the first task, then categorized the words by size of the referent before recall (storage + processing) in the second task. Two similar tasks in the visual-spatial domain required children to recall location of objects in a 4 x 4 grid (storage) or remember the locations and categorize the objects (storage + processing). Children with SLI had a reduced auditory-verbal working memory capacity relative to their peers, particularly when processing demands were high. In contrast, there was no group difference in the visual-spatial domain. Finally, two dual working memory tasks required children to remember words and locations, thereby managing information from two domains simultaneously. The children with SLI achieved lower span levels than their peers when information from the two domains was presented in an integrated way that required formation of a single mental representation. Performance in the working memory tasks was also related to narrative production as a means of explaining language use. The results of this project have implications that inform our understanding of SLI. Although the SLI children in this study evidenced a deficit that was localized to the auditory-verbal domain, the findings are not necessarily evidence for a specific processing deficit account of SLI. Memory strategies and temporal processing in children with SLI warrant further investigation. The results also inform our understanding of working memory. Across all tasks, the importance of using complex measures of working memory to uncover group differences and predict language skills surfaced. The usefulness of the construct of the central executive was questioned, because it is unclear how it could support processing differentially across domains. Further investigation of how working memory, measured independently from language, can predict language use is warranted.
Yield Variability and Agricultural Trade
Creators: name: Reimer, Jeffrey J.
name: Li, Man
name: Reimer, Jeffrey J.
name: Li, Man
Publisher: name: Unknown
Year: 2009
Subjects: subject: Crop Production/Industries
subject: Food Security and Poverty
subject: International Relations/Trade
subject: crops
subject: geography
subject: grains
subject: trade liberalization
subject: yield variability

description: We examine how changes in yield variability affect the welfare of cereal grain and oilseed buyers and producers around the world. We simulate trade patterns and welfare for 21 countries with a Ricardian trade model that incorporates bilateral trade costs and crop yield distributions. The model shows that world trade volumes would need to increase substantially if crop yield variability were to rise. Net welfare effects, however, are moderate so long as countries do not resort to policies that inhibit trade, such as export restrictions or measures to promote self-sufficiency in crops. Low-income countries suffer the most from increases in yield variability, due to higher bilateral trade costs and lower-than-average productivity.
title: Η εφαρμογή της διοίκησης έργων στην προεκλογική εκστρατεία
title: Application of project management in an electoral campaign
titleType: AlternativeTitle
Creators: name: Λαγός, Φώτιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Project management
subject: Διοίκηση έργων
subject: Προεκλογική εκστρατεία
subject: Προεκλογική περίοδος
subject: Εκλογές
subject: Αυτοδιοίκηση

description: Στην παρούσα εργασία, εξετάζεται ποια είναι η φύση της προεκλογικής εκστρατείας, γιατί θεωρείται έργο και αναλύονται οι διεργασίες και οι φάσεις που παρουσιάζει. Κατόπιν αυτές αντιστοιχούνται με τις περιοχές γνώσεις και τις ομάδες διεργασίας της διοίκησης έργων. Δεδομένης της τεράστιας ποικιλομορφίας που παρουσιάζουν οι προεκλογικές καμπάνιες, στην παρούσα μελετουνται από τη σκοπιά του Project Management, οι περιπτώσεις του Δήμου Χαλκιδέων, Περιφέρειας Στερεάς Ελλάδας και η Νέα Δημοκρατία κατά την προεκλογική περίοδο του 2019, μέσα από συνεντεύξεις που παρεχώρησαν είτε οι επικεφαλής των συνδυασμών είτε άμεσα εμπλεκόμενα πρόσωπα. Εν συνεχεία συγκρίνονται οι διαδικασίες που χρησιμοποιήθηκαν μεταξύ της αυτοδιοίκησης (σε επίπεδο Δήμου και Περιφέρειας) και σχολιάζονται τα αποτελέσματα που προέκυψαν από αυτές, προσπαθώντας να εξηγηθεί γιατί θα ήταν χρήσιμη η εμπλοκή ενός Project Manager και υπό ποιες προϋποθέσεις.
"THE PHENOMENON OF READING CULTURE: THEORETICAL AND METHODOLOGICAL ASPECTS"
Creators: name: Ashrapov, Ravil
Publisher: name: Zenodo
Year: 2025

description: In the article, the author explores the phenomenon of reading culture as a complex socio-cultural phenomenon, covering historical, cognitive and communicative aspects.  The article pays special attention to the transformation of reading practices in the digital age and the influence of new technologies on reading preferences. The author focuses on the methodological foundations of studying the culture of reading, emphasizing the need for a comprehensive analysis of this phenomenon. The findings may be useful for further research in the humanities and social sciences.
Detectors for Time-of-Flight Fast-Neutron Radiography: 1. Neutron Counting Gas Detector
Creators: name: Dangendorf, V.
name: Breskin, A.
name: Chechik, R.
name: Goldberg, M.
name: Laczko, G.
name: Mor, I.
name: Reginatto, M.
name: Vartsky, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: One of our two methods for fast-neutron imaging with spectrometric capability is presented here. It is a neutron-counting technique based on a hydrogenous neutron converter coupled to Gaseous Electron Multipliers (GEM). The principles of the detection techniques and the optimization of the converter, electron amplification and the readout are described. Evaluation of the properties are derived from a experiment in a pulsed neutron beam of spectral distribution between 2 and 10 MeV
Additional file 5 of Impacts of drug resistance mutations on the structural asymmetry of the HIV-2 protease
Creators: name: Laville, Pierre
name: Fartek, Sandrine
name: Cerisier, Natacha
name: Flatters, Delphine
name: Petitjean, Michel
name: Regad, Leslie
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Additional file 5. Quantification of structural asymmetry in the 150 structures of the PR2 mutants.
QCD sum rules with spectral densities solved in inverse problems
Creators: name: Li, Hsiang-nan
name: Umeeda, Hiroyuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We construct QCD sum rules for nonperturbative studies without assuming the quark-hadron duality for the spectral density at low energy on the hadron side. Instead, both resonance and continuum contributions to the spectral density are solved with the operator-product-expansion input on the quark side by treating sum rules as an inverse problem. This new formalism does not involve the continuum threshold, does not require the Borel transformation and stability analysis, and can be extended to extract properties of excited states. Taking the two-current correlator as an example, we demonstrate that the series of $ρ$ resonances can emerge in our formalism, and the decay constants $f_{ρ(770)} (f_{ρ(1450)},f_{ρ(1700)},f_{ρ(1900)})\approx$ 0.22 (0.19, 0.14, 0.14) GeV for the masses $m_{ρ(770)} (m_{ρ(1450)},m_{ρ(1700)},m_{ρ(1900)})\approx$ 0.78 (1.46, 1.70, 1.90) GeV are determined. We also show that the decay width $Γ_{ρ(770)}\approx 0.17$ GeV can be obtained by substituting a Breit-Wigner parametrization for the $ρ(770)$ pole on the hadron side. It is observed that quark condensates of dimension-six on the quark side are crucial for establishing those $ρ$ resonances. Handling the conventional sum rules with the duality assumption as an inverse problem, we find that the multiple pole sum rules widely adopted in the literature do not describe the $ρ$ excitations reasonably. The precision of our theoretical outcomes can be improved systematically by including higher-order and higher-power corrections on the quark side. Broad applications of this formalism to abundant low energy QCD observables are expected.
description: 17 pages, 14 figures, version accepted for publication in Phys. Rev. D, title is changed
Forest in the city
Creators: name: Isaac, Katherine Michelle
Publisher: name: University of British Columbia
Year: 2009

description: The goal of this project is to design an urban place which incorporates the power of the forest, specifically water, canopy, green and light. The site chosen is an area proposed for residential development, a site which is presently functioning as a parking lot in the 'Mid-Campus' section of the University of British Columbia. The area of concentration is the area proposed as open space and its connections to the community centre and the surrounding neighbourhood. In order to create a place of powerful experience, I chose phenomenology and associated strategies as a method, working through stages of 'landing', pattern articulation and precedent exploration. These qualitative elements were combined with site structure and program analysis to produce a final design which incorporates three main spaces: Main Mall Plaza, Thunderbird Centre and a reflection pool and rehabilitated forest area. Main Mall Plaza joins the rest of campus with this site, also serving as a social hub and place of prospect over the ocean. Thunderbird Centre provides space for many of the ammenities needed by this new communitity, and is designed with a terraced pool plaza which accentuates the presence of the forest beyond the plaza edge. Numerous walks then wind through the forest and into an existing second growth wood, where the experience of canopy, green and light is accessable.
Magneto-Seebeck coefficient and Nernst coefficient of hot and dense hadron gas
Creators: name: Das, Arpan
name: Mishra, Hiranmaya
name: Mohapatra, Ranjita K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the thermoelectric effect of hot and dense hadron gas within the framework of the hadron resonance gas model. Using the relativistic Boltzmann equation within the relaxation time approximation we estimate the Seebeck coefficient of the hot and dense hadronic medium with a gradient in temperature and baryon chemical potential. The hadronic medium in this calculation is modeled by the hadron resonance gas (HRG) model with hadrons and their resonances up to a mass cutoff $Λ\sim 2.6$ GeV. We also extend the formalism of the thermoelectric effect for a nonvanishing magnetic field. The presence of magnetic field also leads to a Hall type thermoelectric coefficient (Nernst coefficient) for the hot and dense hadronic matter apart from a magneto-Seebeck coefficient. We find that generically in the presence of a magnetic field Seebeck coefficient decreases while the Nernst coefficient increases with the magnetic field. At higher temperature and/or baryon chemical potential these coefficients approach to their values at vanishing magnetic field.
description: 22 pages, 9 figures, Reference added
Internet Access and Internet Purchasing Patterns of Farm Households
Creators: name: Mishra, Ashok K.
name: Williams, Robert P.
name: Detre, Joshua D.
name: Mishra, Ashok K.
name: Williams, Robert P.
name: Detre, Joshua D.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural Finance
subject: Consumer/Household Economics
subject: Farm Management
subject: adoption of Internet
subject: education
subject: farm size
subject: farm households
subject: Internet
subject: double-hurdle model
subject: farm business
subject: major household items
subject: minor farm inputs

description: The Internet is becoming an increasingly important management tool in production agriculture. Using data from the 2004 Agricultural Resource Management Survey (ARMS) and a double-hurdle estimation approach, we explore the adoption of computers with Internet access by and Internet purchasing patterns of farm households. Adoption of the Internet is positively related to age and education of the operator, off-farm work, presence of spouse, participation in government programs, farm size, and regional location of the farm. Internet purchasing patterns of farm households are positively related to the education of the operator and spouse, presence of teenagers, and regional location of the farm. Finally, farm businesses and their households are more likely to purchase a greater percentage of non-durable goods through the Internet as distances to markets increase.
Quantitative assessment of neurovascular dynamics in ageing, Alzheimer’s disease and Huntington’s disease
Creators: name: Bjerkan, Juliane
Publisher: name: Lancaster University
Year: 2025
Subjects: Alzheimer's disease
Huntington's disease
Oscillations
Wavelet phase coherence

description: As individuals age, the risk of neurodegenerative disorders such as
 Alzheimer’s

 disease increases, largely due to changes in the brain and vasculature.
 The brain, which consumes about 20% of the body’s energy, relies on the
 cardiovascular system for nutrient transport. This dependence is
 represented by the neurovascular unit (NVU). Understanding how the
 functioning of the NVU changes with healthy ageing and neurodegenerative
 diseases remains insufficiently explored, particularly through in vivo
 measurements in humans. With an ageing population, the prevalence of
 dementia is expected to rise, highlighting the urgent need for accessible,
 non-invasive,

 and cost-effective diagnostic and monitoring tools.

 Here, data were collected from younger and older participants, as well as

 from patients with Alzheimer’s and Huntington’s diseases, using
 non-invasive

 monitoring techniques. Brain oxygenation was measured via functional
 nearinfrared spectroscopy, brain electrical activity via the
 lectroencephalogram, and cardiorespiratory function via the
 electrocardiogram and a respiration belt. We treat the brain and
 cardiovascular system as interacting oscillators operating
 far-fromequilibrium. To analyse their functioning, we apply methods suited
 to multiscale, time-varying and non-stationary dynamics. The wavelet
 transform was used to calculate the power of oscillations with logarithmic
 frequency resolution, and wavelet phase coherence was used to calculate
 the coordination of oscillations. The efficiency of the NVU was quantified
 as the wavelet phase coherence between brain electrical activity and
 oxygenation.

 Our findings indicate that NVU efficiency declines with age and is further
 reduced in patients with Alzheimer’s and Huntington’s diseases compared to
 age-matched controls. Specific changes in power and coherence associated
 with ageing and these neurodegenerative diseases were identified. Previous
 research on cardiovascular and brain oscillations allows us to link these
 findings to physiological changes. Thus, the methods presented offer a
 novel approach for quantitative evaluation of the neurovascular efficiency
 in ageing and dementia.
Phase transitions of a tethered surface model with a deficit angle term
Creators: name: Koibuchi, Hiroshi
name: Sasaki, Zion
name: Shinohara, Keisuke
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Nambu-Goto model is investigated by using the canonical Monte Carlo simulations on fixed connectivity surfaces of spherical topology. Three distinct phases are found: crumpled, tubular, and smooth. The crumpled and the tubular phases are smoothly connected, and the tubular and the smooth phases are connected by a discontinuous transition. The surface in the tubular phase forms an oblong and one-dimensional object similar to a one-dimensional linear subspace in the Euclidean three-dimensional space R^3. This indicates that the rotational symmetry inherent in the model is spontaneously broken in the tubular phase, and it is restored in the smooth and the crumpled phases.
description: 6 pages with 6 figures
Ο ρόλος της κοινωνίας των πολιτών και των μη κυβερνητικών οργανώσεων στις δημόσιες πολιτικές μια περιπτωσιολογική μελέτη
Creators: name: Μύρωτης, Παναγιώτης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Μ.Κ.Ο.
subject: Εκπαιδευτική πολιτική
subject: Δημόσια πολιτική
subject: Παγκοσμιοποίηση
subject: Πολύ-επίπεδη διακυβέρνηση

description: Η συγκεκριμένη διπλωματική αποτελεί μια μελέτη περίπτωσης, στην οποία μελετάται ο τρόπος με τον οποίο οι ΜΚΟ, επηρεάζουν και δραστηριοποιούνται στην χάραξη των δημοσίων πολιτικών. Επιπλέον δίνεται ιδιαίτερη έμφαση στον τρόπο με τον οποίο επηρέασε η παγκοσμιοποίηση την διαμόρφωση της δημόσια πολιτικής από τις εθνικές κυβερνήσεις, αλλά και στον αντίκτυπο που είχε αυτή η νέα συνθήκη στην δράση των ΜΚΟ. Συγκεκριμένη αναφορά γίνεται τόσο στο τρόπο με τον οποίο δραστηριοποιούνται οι ΜΚΟ στο πλαίσιο της Ε.Ε., δηλαδή στο πώς βρίσκουν δίοδο στα ανώτερα όργανα για να εκφράσουν τις θέσεις και τους προβληματισμούς τους , όσο και για το εάν και σε ποιες περιπτώσεις καταφέρνουν να επηρεάσουν την ατζέντα και την λήψη αποφάσεων στο κορυφαίο επίπεδο της πολυεπίπεδης διακυβέρνησης. Η πολιτική στην οποία εστιάζει η παρούσα διπλωματική είναι η εκπαιδευτική και η μεταναστευτική πολιτική. Η τελευταία έχει επανέρθει σε περίοπτη θέση στην ατζέντα, μετά την προσφυγική κρίση που ξέσπασε ως επακόλουθο της δεκάχρονης, πλέον, Συριακής κρίσης. Η εκπαίδευση των προσφύγων είναι σημαντική, για την πλήρη ένταξή τους στην κοινωνία των κρατών που διαμένουν. Όμως ποια είναι η συμβολή των ΜΚΟ σε αυτή την διάσταση της κρίσης; Στο τελευταίο μέρος της εργασίας εξετάζεται η δραστηριότητα των ΜΚΟ στην Τουρκία σχετικά με την προσφυγική κρίση, ενώ στα προηγούμενα κεφάλαια η εργασία εστιάζει στην συμμετοχή των ΜΚΟ στην Ανοιχτή Μέθοδο Συντονισμού, για την διαμόρφωση της στρατηγικής της Λισσαβόνας από την Ε.Ε, καθώς επίσης και στον ρόλο που έχουν οι ΜΚΟ στην Αφρική σχετικά με την παροχή εκπαιδευτικών υπηρεσιών, αλλά και στο τρόπο με τον οποίο επηρεάζουν τις κυβερνήσεις στην διαμόρφωση της εκπαιδευτικής πολιτικής. Στα πρώτα κεφάλαιο γίνεται μια αναφορά στις βασικές έννοιες της δημόσιας πολιτικής και ο συσχετισμός του όρου δημόσια πολιτική με την εκπαιδευτική πολιτική. Ακόμη γίνεται μια προσπάθεια περιγραφής της δράσης των ΜΚΟ σε επίπεδο διεθνών οργανισμών, ενώ στην συνέχεια εξειδικεύεται η δράση τους γενικότερα στο πλαίσιο της εκπαιδευτικής πολιτικής.
Reviving non-Minimal Horndeski-like Theories after GW170817: Kinetic Coupling Corrected Einstein-Gauss-Bonnet Inflation
Creators: name: Oikonomou, V. K.
name: Fronimos, F. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: After the recent GW170817 event of the two neutron stars merging, many string corrected cosmological theories confronted the non-viability peril. This was due to the fact that most of these theories produce massive gravitons primordially. Among these theories were the ones containing a non-minimal kinetic coupling correction term in the Lagrangian, which belong to a subclass of Horndeski theories. In this work we demonstrate how these theories may be revived and we show how these theories can produce primordial gravitational waves with speed $c_T^2=1$ in natural units, thus complying with the GW170817 event. As we show, if the gravitational action of an Einstein-Gauss-Bonnet theory also contains a kinetic coupling of the form $\sim ξ(ϕ) G^{μν}\partial_μϕ\partial_νϕ$, the condition of having primordial massless gravitons, or equivalently primordial gravitational waves with speed $c_T^2=1$ in natural units, results to certain conditions on the scalar field dependent coupling function of the Gauss-Bonnet term, which is also the non-minimal coupling of the kinetic coupling. We extensively study the phenomenological implications of such a theory focusing on the inflationary era, by only assuming slow-roll dynamics for the scalar field. Accordingly, we briefly study the case that the scalar field evolves in a constant-roll way. By using some illustrative examples, we demonstrate that the viability of the theoretical framework at hand may easily be achieved. Also, theories containing terms of the form $\sim ξ(ϕ)\Boxϕg^{μν}\partial_μϕ\partial_νϕ$ and $\sim ξ(ϕ)\left(g^{μν}\partial_μϕ\partial_νϕ\right)^2$ also lead to the same gravitational wave speed as the theory we shall study in this paper, so this covers a larger class of Horndeski theories.
description: Revised version, CQG Accepted
title: Für welche ‚Natur/en‘ sorgen wir? Kritisch feministische Perspektiven auf aktuelle Care-Debatten im sozial-ökologischen Kontext
Creators: name: Hofmeister, Sabine
name: Mölders, Tanja
name: Deininger, Michaela
name: Kapitza, Katharina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Care
subject: Care-Arbeit
subject: Emanzipation
subject: Feminismus
subject: Nachhaltigkeit
subject: Natur
subject: Natur/en
subject: ddc:300

description: Anlass unseres Beitrags ist die Beobachtung, dass sich in aktuellen feministischen Debatten – insbesondere im Kontext der Nachhaltigkeitswissenschaften – vermehrt auf ‚Care‘ als Denk- und Handlungsprinzip bezogen wird. Damit wird ‚Care‘ (auch) auf die Kategorie Natur erweitert. Wir gehen davon aus, dass eine solche Erweiterung die Komplexität und Wirkmächtigkeit gesellschaftlicher Natur- und Geschlechterverhältnisse vernachlässigt. Eine Folge könnte die Übertragung macht- und herrschaftsförmiger Momente von Sorgebeziehungen auf den Umgang mit nichtmenschlichen ‚Natur/en‘ sein. Wir begeben uns auf eine Spurensuche, die über die Auseinandersetzung mit ‚Natur‘ als immanenter Kategorie von (Care-)Debatten der Neuen Frauen- und Ökologiebewegung der 1970er-Jahre bis hin zu einer Untersuchung ausgewählter Arbeiten zu ‚Natur‘ als expliziter Kategorie in ‚Care‘-Beziehungen zwischen Menschen und nichtmenschlichen ‚Natur/en‘ führt. Der Beitrag richtet sich explizit gegen die Tendenz der Essentialisierung von ‚Natur‘ und ‚Geschlecht‘. Stattdessen plädieren wir für eine nachhaltige Nutzung von ‚Natur/en‘ in vorsorgender Perspektive.
Comment on "Magnetic quantum oscillations of the conductivity in layered conductors"
Creators: name: Champel, T.
name: Mineev, V. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We discuss the recent theory of Gvozdikov [Phys. Rev. B 70, 085113 (2004)] which aims at explaining the Shubnikov-de Haas oscillations of the longitudinal resistivity ρ_zz observed in the quasi-two-dimensional organic compound β''-(BEDT-TTF)_2SF_5CH_2CF_2SO_3. We point out that the self-consistent equations of the theory yielding the longitudinal resistivity and the magnetic field dependence of the chemical potential have been incorrectly solved. We show that the consideration of the self-consistent Born approximation (which determines the relaxation rate in Gvozdikov's paper) leads in fact to the complete absence of the longitudinal conductivity σ_{zz} at leading order in high magnetic fields.
description: 4 pages, no figure
Additional file 3 of Velamentous cord insertion: results from a rapid review of incidence, risk factors, adverse outcomes and screening
Creators: name: Buchanan-Hughes, Amy
name: Bobrowska, Anna
name: Visintin, Cristina
name: Attilakos, George
name: Marshall, John
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 3. Supplementary data
Comparative Studies of 2HDMs under the Higgs Boson Precision Measurements
Creators: name: Han, Tao
name: Li, Shuailong
name: Su, Shufang
name: Su, Wei
name: Wu, Yongcheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under the precision measurements of the Standard Model (SM) Higgs observables at the proposed Higgs factories. We explore the discovery potential based on the hypothetical deviations in the precision data for the 2HDMs up to one-loop level. We find $5σ$ observability from the $χ^2$ fitting in a significant theory parameter space at future Higgs factories. For the Type-I 2HDM, regions with $\cos(β-α)\lesssim -0.1$ or $\cos(β-α)\gtrsim 0.08$ are discoverable at more than $5σ$ level. For the other three types of 2HDMs, the $5σ$ region is even bigger: $|\cos(β-α)|\gtrsim 0.02$ for $\tanβ\sim 1$. At small and large values of $\tanβ$, the region in $\cos(β-α)$ is further tightened. We examine the extent to which the different 2HDM theories may be distinguishable from one to the other at the $95\%$ Confidence Level with four benchmark points as case studies. We show that a large part of the parameter space of the other types of 2HDMs can be distinguished from the benchmark points of the target model. The impacts of loop corrections are found to be significant in certain parameter regions.
description: 22 pages, 6 figures
Σαλπάροντας στα χνάρια του Οδυσσέα: ένα νέο θαλάσσιο, πολιτιστικό, τουριστικό προϊόν
Creators: name: Μαλιγιάννη, Ζωή
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Θαλάσσιος τουρισμός
subject: Ιδιωτική θαλάσσια περιήγηση
subject: Κρουαζιέρα
subject: Πολιτιστικός τουρισμός
subject: Οδύσσεια
subject: Ελλάδα
subject: Nautical tourism
subject: Yachting
subject: Cruise
subject: Cultural tourism
subject: Odyssea
subject: Greece
subject: Ναυτικός τουρισμός

description: Η παρούσα διπλωματική εργασία έχει δύο σκοπούς. Ο πρώτος είναι να μας εντάξει ως αναγνώστες στα ιδιαίτερα γνωρίσματα του Ελληνικού τουριστικού προϊόντος. Με αυτό τον τρόπο θα μπορέσουμε να αντιληφθούμε τη σημασία του τουρισμού στην οικονομία της χώρας. Ύστερα, θα μπορέσουμε να εμβαθύνουμε πιο συγκεκριμένα στα χαρακτηριστικά του θαλάσσιου τουρισμού στην Ελλάδα και να τα συγκρίνουμε με αυτά της Ευρώπης και του κόσμου. Αφού ολοκληρώσουμε το πρώτο μέρος της εργασίας που αφορά στο πιο θεωρητικό της σκέλος, θα περάσουμε στο δεύτερο, που αφορά τη δημιουργία ενός marketing plan. Αυτός είναι και ο δεύτερος σκοπός της εργασίας, δηλαδή, να αντιληφθούμε πως όλα τα παραπάνω στοιχεία μπορούν να συντελέσουν στη δημιουργία ενός νέου τουριστικού, θαλάσσιου και ταυτόχρονα πολιτιστικού προϊόντος που θα ανταποκρίνεται τέλεια στις ανάγκες της αγοράς. Το νέο προϊόν εντάσσεται στον τομέα του yaghting και συνδυάζει τη θάλασσα με τον πολιτισμό αφού ουσιαστικά πρόκειται για ένα ταξίδι προσομοίωσης αυτού του Οδυσσέα. Ο ταξιδιώτης, ως άλλος εξερευνητής, ενώνει την ανατολή με τη δύση καθώς περιηγείται στα νησιά του Αιγαίου και την ηπειρωτική Ελλάδα, γεύεται τους καρπούς της, βιώνει μοναδικές εμπειρίες και τελικά καταλήγει στη δική του, προσωπική Ιθάκη.
Diffusive transport in networks built of containers and tubes
Creators: name: Lizana, L.
name: Konkoli, Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We developed analytical and numerical methods to study a transport of non-interacting particles in large networks consisting of M d-dimensional containers C_1,...,C_M with radii R_i linked together by tubes of length l_{ij} and radii a_{ij} where i,j=1,2,...,M. Tubes may join directly with each other forming junctions. It is possible that some links are absent. Instead of solving the diffusion equation for the full problem we formulated an approach that is computationally more efficient. We derived a set of rate equations that govern the time dependence of the number of particles in each container N_1(t),N_2(t),...,N_M(t). In such a way the complicated transport problem is reduced to a set of M first order integro-differential equations in time, which can be solved efficiently by the algorithm presented here. The workings of the method have been demonstrated on a couple of examples: networks involving three, four and seven containers, and one network with a three-point junction. Already simple networks with relatively few containers exhibit interesting transport behavior. For example, we showed that it is possible to adjust the geometry of the networks so that the particle concentration varies in time in a wave-like manner. Such behavior deviates from simple exponential growth and decay occurring in the two container system.
description: 21 pages, 18 figures, REVTEX4; new figure added, reduced emphasis on graph theory, additional discussion added (computational cost, one dimensional tubes)
Exchange Rate Dynamics and the Bilateral Trade Balance: The Case of U.S. Agriculture
Creators: name: Baek, Jungho
name: Koo, Won W.
name: Mulik, Kranti
name: Baek, Jungho
name: Koo, Won W.
name: Mulik, Kranti
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: Research Methods/ Statistical Methods
subject: agricultural trade
subject: autoregressive distributed lag approach to cointegration
subject: bilateral trade
subject: J-curve effect

description: This study examines the dynamic effects of changes in exchange rates on bilateral trade of agricultural products between the United States and its 15 major trading partners. Special attention is paid to investigate whether or not the J-curve hypothesis holds for U.S. agricultural trade. For this purpose, an autoregressive distributed lag (ARDL) approach to cointegration is applied to quarterly time-series data from 1989 and 2007. Results show that the exchange rate plays a crucial role in determining the short- and long-run behavior of U.S. agricultural trade. However, we find little evidence of the J-curve phenomenon for U.S. agricultural products with the United States’ major trading partners.
title: Feministische Herausforderungen an das Flüchtlingsrecht: von der zweiten zur dritten Welle
Creators: name: Wessels, Janna
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Feminismus
subject: Flüchtlingsrecht
subject: Intersektionalität
subject: Migration
subject: Öffentlich/Privat
subject: ddc:320

description: Der Beitrag wirft einen feministischen Blick auf das Flüchtlingsrecht. Der zunächst für den klassischen politischen – und männlichen – Dissidenten entworfene Flüchtlingsbegriff hat in den vergangenen Jahren eine tiefgreifende Transformation erfahren, die sich gut mit der zentralen These der zweiten Welle des Feminismus greifen lässt: Das Private ist politisch. Die Aufweichung zwischen öffentlichem und privatem Bereich führte zu einem grundlegenden Wandel, der es ermöglichte, dass bestimmte geschlechtsspezifische Verfolgungssituationen ebenfalls von der Definition erfasst werden können. Nach diesem großen Erfolg hat das feministische Engagement mit dem Flüchtlingsrecht aber stark nachgelassen. Der Beitrag arbeitet fortbestehende Herausforderungen heraus und zeigt auf, dass auch die dritte Welle des Feminismus wichtige Lehren zur Weiterentwicklung des Flüchtlingsrechts bereithält.
A Second Shell in the Fornax dSph Galaxy
Creators: name: Coleman, M. G.
name: Da Costa, G. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the search for tidal structure in Galactic satellite systems, we have conducted a photometric survey over a 10 square degree area centred on the Fornax dSph galaxy. The survey was made in two colours, and the resulting colour-magnitude data were used as a mask to select candidate Fornax RGB stars, thereby increasing the contrast of Fornax stars to background sources in the outer regions. Previously, we reported the presence of a shell (age 2 Gyr) located towards the centre of Fornax. In this contribution we reveal a second shell, significantly larger than the first, located 1.3 degrees NW from the centre of Fornax, outside the nominal tidal radius. Moreover, the distribution of Fornax RGB stars reveals two lobes extending to the spatial limit of our survey, and aligned with the minor axis and with the two shells. These results support the hypothesis of a merger between Fornax and a gas-rich companion approximately 2 Gyr ago.
description: Four pages,accepted for the Publications of the Astronomical Society of Australia. Contribution the annual ASA meeting, Brisbane 2004
title: Σενάριο διδασκαλίας κεφαλαίου μαθηματικών Γ’ δημοτικού, βασισμένο στις αρχές του gamification, σε συνδυασμό με WebII εργαλεία
title: Teaching scenario for a chapter of 3rd grade mathematics, based on gamification principles, combined with WebII tools
titleType: AlternativeTitle
Creators: name: Τζιάσιου, Ευαγγελία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Μαθηματικά
subject: Σενάριο
subject: Κινητοποίηση
subject: Δέσμευση
subject: Παιχνίδι
subject: Μάθηση

description: Ο όρος Gamification αναφέρεται στη χρήση και ενσωμάτωση διαφόρων τεχνολογιών, μηχανισμών και χαρακτηριστικών που συναντώνται στο σχεδιασμό των παιχνιδιών, σε διάφορες άλλες δραστηριότητες οι οποίες δεν είναι παιχνίδια. Η χρήση του gamification συναντάται ήδη σε πολλούς τομείς της καθημερινότητάς μας: Στα ίδια τα παιχνίδια, σε ιστοσελίδες, στη διαφήμιση, στην προώθηση προϊόντων και υπηρεσιών (marketing) και αλλού. Το gamification μπορεί να βοηθήσει και κατά την εκπαιδευτική διαδικασία και μάλιστα σε όλες τις ηλικίες των μαθητών, ανηλίκων ή ενηλίκων. Σκοπός είναι να συμβάλλει στην κινητοποίηση των συμμετεχόντων ώστε η διαδικασία της μάθησης να γίνει πιο ευχάριστη, ενώ οι μαθησιακοί στόχοι μπορούν να επιτευχθούν ευκολότερα.
Additional file 2 of Velamentous cord insertion: results from a rapid review of incidence, risk factors, adverse outcomes and screening
Creators: name: Buchanan-Hughes, Amy
name: Bobrowska, Anna
name: Visintin, Cristina
name: Attilakos, George
name: Marshall, John
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 2. PRISMA 2009 Checklist. The completed PRISMA checklist for this manuscript.
Cost-Benefit Analysis at the Supreme Court: Cooling Water v. Fish
Creators: name: Hewitt, Julie A.
name: Hewitt, Julie A.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Teaching/Communication/Extension/Profession
subject: regulatory analysis
subject: ecological benefits
subject: Chevron test

description: This is the story of a recent U.S. Supreme Court case on the use of cost-benefit analysis at the U.S. Environmental Protection Agency (EPA) for a regulation issued under the Clean Water Act (CWA). The case is Entergy Corp. v. Riverkeeper, Inc., et al. The case was not about the quality of the cost-benefit analysis, nor the fact that EPA conducted one, but whether EPA had CWA authority to base regulatory decisions on cost-benefit. I close with thoughts about an alternative Chevron legal test that acknowledges the state of ecosystem valuation.
Spectrally equivalent time-dependent double wells and unstable anharmonic oscillators
Creators: name: Fring, Andreas
name: Tenney, Rebecca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a time-dependent double well potential as an exact spectral equivalent to the explicitly time-dependent negative quartic oscillator with a time-dependent mass term. Defining the unstable anharmonic oscillator Hamiltonian on a contour in the lower-half complex plane, the resulting time-dependent non-Hermitian Hamiltonian is first mapped by an exact solution of the time-dependent Dyson equation to a time-dependent Hermitian Hamiltonian defined on the real axis. When unitary transformed, scaled and Fourier transformed we obtain a time-dependent double well potential bounded from below. All transformations are carried out non-perturbatively so that all Hamiltonians in this process are spectrally exactly equivalent in the sense that they have identical instantaneous energy eigenvalue spectra.
description: 7 pages, 1 figure
What You Don’t Know Can Hurt You: Micronutrient Content and Fungal Contamination of Foods in Developing Countries
Creators: name: Hoffmann, Vivian
name: Hoffmann, Vivian
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Development
subject: food safety
subject: micronutrients
subject: aflatoxin
subject: developing countries

description: The negative effects of micronutrient deficiencies on human capital acquisition and economic productivity are well documented. A less well understood but potentially serious threat to human health in developing countries is the contamination of food crops by fungal toxins. This paper surveys what is known about the health and economic burdens attributable to insufficient micronutrients and toxic contamination of food in developing countries, discusses consumer demand for micronutrients and food safety, and describes some of the challenges to improving population nutrition, particularly in rural areas.
title: Modisches Handeln als Strategie der Veruneindeutigung? Eine kritische Diskursanalyse über ‚islamische Mode‘
Creators: name: Amsler, Claudia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Diskursanalyse
subject: Geschlecht
subject: Postkolonialismus
subject: Religion
subject: Veruneindeutigung
subject: ddc:502

description: Der Beitrag beschäftigt sich mit dem medialen Sprechen über vestimentäre Praktiken rund um ‚die islamische Mode‘. Mithilfe der Wiener Kritischen Diskursanalyse argumentiere ich dafür, dass eine postkoloniale Perspektive auf das Themenfeld von Mode und Geschlecht unabdingbar ist. So lässt sich durch die Analyse von deutschsprachigen Berichterstattungen, die durch Interviews mit Expertinnen und ethnografischen Beobachtungen flankiert wurden, die Janusköpfigkeit von modischen Handlungen aufzeigen: Einerseits besitzen modische Handlungen das Potenzial, fixierte Bedeutungen von vergeschlechtlichten und religiös konnotierten Kleidungsstücken zu veruneindeutigen, andererseits können sich in modischen Handlungen und im Sprechen über sie koloniale Blick- und Denkregime aktualisieren. Insbesondere das Stereotyp ‚der unterdrückten muslimischen Frau‘ wird immer wieder aufgerufen und dient in den Berichterstattungen dazu, ein ‚Gegenbild‘ zu konstruieren: die schöne, selbstbestimmte, kauffreudige Muslimin. Durch die referentielle Strategie der Synekdoche und Generalisierung wird dieses ‚Gegenbild‘ homogenisiert, exotisiert und gleichzeitig vereinnahmt.
title: Η σχέση της εξ’ αποστάσεως εκπαίδευσης με την πρόσβαση των πολιτών στο εκπαιδευτικό σύστημα
title: The relationship between distance education and citizens 'access to the education system
titleType: AlternativeTitle
Creators: name: Μουτζούρη, Δανάη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Εξ αποστάσεως εκπαίδευση
subject: Ενήλικες εκπαιδευόμενοι
subject: Εκπαιδευτικό σύστημα
subject: Ερωτηματολόγιο

description: Στις μέρες μας, η ραγδαία εξέλιξη της τεχνολογίας έχει επηρεάσει κάθε ανθρώπινη δραστηριότητα, όπως και τον τομέα της εκπαίδευσης και πιο συγκεκριμένα την εκπαίδευση ενηλίκων. Τα αίτια της νέας αυτής τάσης στην εκπαίδευση εντοπίζονται στην παρουσία της εξ αποστάσεως εκπαίδευσης, που το τελευταίο διάστημα έχει κάνει έντονη την εμφάνισή της. Τα πλεονεκτήματα της εξ αποστάσεως εκπαίδευσης είναι πολλά και είναι αυτά που την καθιστούν μια μορφή εκπαίδευσης, ιδιαίτερα προσιτή για όλους, ενώ η βελτίωση των Τεχνολογιών Πληροφορίας και Επικοινωνίας (Τ.Π.Ε.) την έχουν εξελίξει, με αποτέλεσμα να την καθιστούν ιδιαίτερα αποτελεσματική για τους εκπαιδευόμενους, οι οποίοι βρίσκονται σε απόσταση και ο διαθέσιμος χρόνος τους είναι περιορισμένος. Στην παρούσα έρευνα θα εξεταστούν αρχικά τα χαρακτηριστικά που διαμορφώνουν και επηρεάζουν την εξ αποστάσεως εκπαίδευση, με στόχο να προσδιοριστεί με το καλύτερο δυνατό τρόπο η διαδικασία απόκτησης της γνώσης, μέσα από την τεχνολογική εξέλιξη. Ειδικότερα, θα γίνει προσπάθεια να προσδιοριστούν τα χαρακτηριστικά της εξ αποστάσεως εκπαίδευσης στην Ελλάδα, οι απόψεις των πολιτών για την εξ αποστάσεως εκπαίδευση στη χώρα, αλλά και οι απόψεις των Ελλήνων πολιτών, αναφορικά με την ένταξη της εξ αποστάσεως εκπαίδευσης στο εκπαιδευτικό σύστημα.