cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neutrino Properties Studied with a Triton Source Using Large TPC Detectors
Creators: name: Giomataris, Y.
name: Vergados, J. D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The purpose of the present paper is to study the neutrino properties as they may appear in the low energy neutrinos emitted in triton decay, with maximum neutrino energy of 18.6 KeV. The technical challenges to this end can be summarized as building a very large TPC capable of detecting low energy recoils, down to a few 100 eV, within the required low background constraints. More specifically We propose the development of a spherical gaseous TPC of about 10-m in radius and a 200 Mcurie triton source in the center of curvature. One can list a number of exciting studies, concerning fundamental physics issues, that could be made using a large volume TPC and low energy antineutrinos:1) The oscillation length involving the small mixing angle in the electronic neutrino disappearancei experiment is comparable to the length of the detector. Measuring the counting rate of neutrino-electron elastic scattering will give a precise measurement of the oscillation parameters free of systematic errors. First estimations show that a sensitivity of a few percent for the measurement of the above angle. 2) The low energy detection threshold offers a unique sensitivity for the neutrino magnetic moment which is about two orders of magnitude beyond the current experimental limit. 3) Scattering at such low neutrino energies has never been studied and any departure from the expected behavior may be an indication of new physics beyond the standard model. We present results of theoretical calculation and studies of possible measurements.
description: 30 LaTex pages and 9 figures
OPTIONAL PAYMENTS OF THE FIRST PILLAR UNDER CAP VS THE AVERAGE AMOUNT OF SUPPORT PER FARM
PŁATNOŚCI DOBROWOLNE I FILARU WPR A ŚREDNIA KWOTA WSPARCIA NA GOSPODARSTWO
Creators: name: Sadłowski, Adrian
name: Sadłowski, Adrian
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Common Agricultural Policy
subject: direct payments
subject: redistributive payment
subject: coupled support

description: Subject and purpose of work: The article analyses the influence of optional instruments applied in Poland as part of the first pillar of the Common Agricultural Policy on the average support provided to farms in individual provinces. Materials and methods: The study was based on data from the Agency for Restructuring and Modernisation of Agriculture as well as quantitative and analytical methods, especially simulations and comparative variant analysis. Results: The optional instruments applied in Poland increased the average support provided to farms in central and eastern Poland. The average amount of support paid per farm would have been bigger in northern, western and southern provinces if optional instruments had not been implemented. Primarily, the introduction of both redistributive payment and production-related support (all forms of this support taken together) resulted in a decrease in the average aid per holding in the same group of provinces and at the same time an increase in this size in other provinces (compared to the situation in which the amounts for financing these instruments would be distributed under the single area payment). Conclusions: The analysis of the influence of redistributive payment and coupled support on the average amount of financial aid per farm in individual provinces shows that the consequences of using these instruments were very similar to each other in their effect on the variable under study.
Climate Change and Agricultural Risk Management Into the 21st Century
Creators: name: Crane-Droesch, Andrew
name: Marshall, Elizabeth
name: Rosch, Stephanie
name: Riddle, Anne
name: Cooper, Joseph
name: Wallander, Steven
name: Crane-Droesch, Andrew
name: Marshall, Elizabeth
name: Rosch, Stephanie
name: Riddle, Anne
name: Cooper, Joseph
name: Wallander, Steven
Publisher: name: Unknown
Year: 2019
Subjects: subject: Environmental Economics and Policy
subject: Farm Management
subject: Risk and Uncertainty
subject: climate change
subject: risk management
subject: machine learning
subject: agriculture
subject: Regional Environment and Agriculture Programming
subject: REAP
subject: model
subject: crop insurance
subject: semiparametric neural networks
subject: general circulation model

description: Programs that help farmers manage risk are a major component of the Federal Government’s support to rural America. Changes to this risk—and thus to the Government’s fiscal exposure— are expected as weather averages and extremes change over the coming decades. This study uses a combination of statistical and economic modeling techniques to explore the mechanisms by which climate change could affect the cost of the Federal Crop Insurance Program (FCIP) to the Federal Government, which accounts for approximately half of Government expenditures on agricultural risk management. Our approach is to compare scenarios of the future that differ only in terms of climate. Using weather scenarios for 2060-99 from general circulation models, we project decreases in corn and soybean yields and mixed changes to winter wheat yields, compared to a baseline scenario in which climate is identical to that of the past three decades. We use an economic model of the U.S. agricultural sector to estimate how projected yield changes may induce farmers to change what and where they plant, and the resulting impacts on production and output prices. These ingredients allow us to explore drivers of change in the cost of the FCIP’s Revenue Protection program, which is used as a heuristic for potential farm safety net programs that could exist in the future. Differences between the scenarios are driven by increasing prices for the three crops studied, caused by relatively lower production in the presence of inelastic demand, as well as by changing volatility in both yields and prices.
Dielectric and refractive index measurements for the systems 1-pentanol + 2,5,8,11,14-pentaoxapentadecane, or for 2,5,8,11,14-pentaoxapentadecane + octane at (293.15-303.15) K
Creators: name: Alonso, Víctor
name: González, Juan Antonio
name: de la Fuente, Isaías García
name: Cobos, José Carlos
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Relative permittivities, $\varepsilon_{r}$, and refractive indices, $n_{D}$, have been measured at (293.15-303.15) K, for the mixtures 1-pentanol + 2,5,8,11,14-pentaoxapentadecane (TEGDME) or TEGDME + octane. These data have been used, together with density measurements available in the literature, to calculate the correlation factors, $g_{K}$, according to the Kirkwood-Fröhlich equations. The curves of the deviations of from the ideal behaviour, $Δ\varepsilon_{r}$, of the 1-pentanol + TEGDME system are shifted to high mole fractions of the alcohol, and show a rather large minimum. The shape of the $Δ\varepsilon_{r}$ curves of methanol + TEGDME or + polyethylene glycol dimethyl ether 250 (PEG-250) mixtures is similar. This reveals that polyethers can break the alcohol self-association even at high alkanol concentrations. The higher $Δ\varepsilon_{r}$ values of the methanol solutions are ascribed to large self-association of this alcohol. The $Δ\varepsilon_{r}$ curves of the 1-pentanol + dibutyl ether (DBE) system are nearly symmetrical, and the $Δ\varepsilon_{r}$ values are higher than those of the corresponding TEGDME mixture. This indicates that effects related to the alcohol self-association are much more relevant in the DBE system. These findings are supported by $g_{K}$ and molar polarization data. Values of molar refraction of 1-pentanol systems reveal that dispersion forces become more important in the sequence: octane < DBE < TEGDME. Such forces are also more relevant in the 1-pentanol + TEGDME system than in the methanol + TEGDME solution. The comparison of $\varepsilon_{r}$ and $g_{K}$ data for TEGDME or DBE + octane mixtures shows than the polyether is a more structured liquid.
description: arXiv admin note: substantial text overlap with arXiv:2402.05899
Isometric immersions into S^n x R and H^n x R and applications to minimal surfaces
Creators: name: Daniel, Benoit
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10; 53C42; 53A35; 53B25

description: We give a necessary and sufficient condition for an n-dimensional Riemannian manifold to be isometrically immersed in S^n x R or H^n x R in terms of its first and second fundamental forms and of the projection of the vertical vector field on its tangent plane. We deduce the existence of a one-parameter family of isometric minimal deformations of a given minimal surface in S^2 x R or H^2 x R, obtained by rotating the shape operator.
description: 27 pages, 1 figure
Nomada (Gestamen) rubricoxa Schwarz 1977
Creators: name: Gaspar, Hugo
name: Flaminio, Simone
name: Soares, Albano
name: Rufino, Cristina
name: Loureiro, João
name: Castro, Sílvia
name: Wood, Thomas J.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Nomada
Nomada rubricoxa

description: Nomada (Gestamen) rubricoxa Schwarz, 1977
Paratypes.
Portugal • Castelo Branco, Lousa; 1876–1910; 1 ♀ (ZOO.0023788, Fig. 9 D); det. M. Schwarz 1965 • Castelo Branco, Colégio de São Fiel; 1876–1910; 1 ♀ (ZOO.0023789, Fig. 10 A); det. M. Schwarz 1965 • Guarda, Serra da Estrela; 1876–1910; 1 ♂ (ZOO.0023802, Fig. 10 B); det. M. Schwarz 1965.
description: Published as part of Gaspar, Hugo, Flaminio, Simone, Soares, Albano, Rufino, Cristina, Loureiro, João, Castro, Sílvia & Wood, Thomas J., 2025, New data from the historical bee collection (Hymenoptera, Anthophila) of the Science Museum of the University of Coimbra and additional faunistic updates for Portugal, pp. 165-194 in Journal of Hymenoptera Research 98 on pages 165-194, DOI: 10.3897/jhr.98.142965
The Supplemental Nutrition Assistance Program (SNAP) and the Economy: New Estimates of the SNAP Multiplier
Creators: name: Canning, Patrick
name: Stacy, Brian
name: Canning, Patrick
name: Stacy, Brian
Publisher: name: Unknown
Year: 2019
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Automatic Stabilizer
subject: fiscal stimulus
subject: gross domestic income (GDI) multiplier
subject: gross domestic product (GDP) multiplier
subject: job impact
subject: Social Accounting Matrix (SAM) multiplier model
subject: Supplemental Nutrition Assistance Program (SNAP)

description: The Supplemental Nutrition Assistance Program (SNAP) is one of the largest safety net programs in the United States—the U.S. Department of Agriculture spent $65.3 billion on the program in fiscal year 2018 and served an average of 40.3 million people per month. By design, SNAP has a countercyclical effect on the wider economy, that is, program enrollment increases when incomes fall and vice versa. The Great Recession of 2007-09 motivated new interest in the impacts of different Federal stimulus tools, including SNAP spending. We examine the countercyclical impacts of SNAP by measuring how SNAP benefits affect gross domestic product, employment, and incomes across the farm economy and for all other industries impacted by SNAP. A review of the literature suggests that SNAP spending during a recession stimulates economic output more than several other fiscal policy tools that have been used to increase economic activity. We estimate multiplier effects of SNAP expansion using a newly compiled Social Accounting Matrix multiplier model and the most recent data available for this purpose. We find that $1 billion in SNAP benefits spent during an economic downturn provides direct added income to the businesses where those benefits are spent and indirect added income to their suppliers and their employees, who in turn spend more and further increase the effect of the initial outlay. This multiplier effect generates an additional $0.5 billion, making the total effect of the $1 billion in SNAP benefits $1.5 billion in gross domestic product, which supports 13,560 new jobs—including $32 million added income going to agricultural industries that support 480 agricultural jobs.
Ανάπτυξη μεθόδου υγρής χρωματογραφίας – φασματομετρίας μαζών σε σειρά (LC – MS/MS) για τον προσδιορισμό φαινυλεφρίνης σε δείγματα ξηράς κηλίδας αίματος (DBS)
Creators: name: Μπούτου, Ελευθερία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Φαινυλεφρίνη
Υγρή χρωματογραφία – φασματομετρία μαζών
Ξηρά κηλίδα αίματος
Phenylephrine
Liquid chromatography – mass spectrometry
Dried Blood Spot

description: Στην παρούσα μελέτη, αναπτύχθηκε μια χρωματογραφική μέθοδος υδρόφιλων αλληλεπιδράσεων συζευγμένη με φασματομετρία μαζών σε σειρά (HILIC-MS/MS) με στόχο την ανίχνευση και ποσοτικοποίηση της φαινυλεφρίνης σε δείγματα ολικού αίματος πρόωρων νεογνών, στα οποία χορηγήθηκε μέσω κολλύριου για την διάγνωση Αμφιβληστροειδοπάθειας της Προωρότητας (ΑτΠ). Η ανάπτυξη της μεθόδου πραγματοποιήθηκε σε χρωματογραφικό σύστημα Waters Acquity H-Class συζευγμένο με φασματογράφο μαζών Waters Xevo TQD. Ο προσδιορισμός της πραγματοποιήθηκε με MRM (m/z 168  150) σε λειτουργία θετικού ιονισμού με ηλεκτροψεκασμό. Ο χρωματογραφικός διαχωρισμός πραγματοποιήθηκε σε στήλη ACQUITY UPLC BEH AMIDE column (2.1 x 150 mm , 1.7 μm) με κινητές φάσεις A: 95 ακετονιτρίλιο : 5 νερό (v/v), 10 mM HCOONH4, pH = 3 και Β: 30 ακετονιτρίλιο : 70 νερό (v/v), 10 mM HCOONH4, pH = 3. Εφαρμόστηκε ισοκρατικό σύστημα έκλουσης (90% Α, 10% Β) με διάρκεια ανάλυσης 5 λεπτά. Η ένωση παραλείφθηκε από τις ξηρές κηλίδες αίματος με εκχύλιση με κατάλληλο διαλύτη. Η μέθοδος βελτιστοποιήθηκε και επικυρώθηκε ως προς το όριο ανίχνευσης (LOD) και ποσοτικοποίησης (LOQ), γραμμικότητα, ακρίβεια, επίδραση του υποστρώματος, ανάκτηση, πιστότητα και σταθερότητα σε εμβολιασμένα δείγματα αίματος γνωστής συγκέντρωσης. Η μέθοδος κρίθηκε κατάλληλη για την εφαρμογή της σε πραγματικά δείγματα για την μελέτη της φαρμακοκινητικής της φαινυλεφρίνης σε νεογνά
description: A sensitive and accurate hydrophilic liquid chromatography – tandem mass spectrometry method (HILIC–MS/MS) was developed and validated for the determination of phenylephrine concentration in Dried Blood Spot (DBS) samples from preterm infants, after ocular administration of an ophthalmic solution of phenylephrine. Sample preparation involved the extraction of the analyte from DBS with methanol – acetonitrile (50:50, v/v). Chromatographic separation was achieved on an ACQUITY UPLC BEH AMIDE column, under isocratic conditions within a 5-minute run. Detection was achieved with a triple quadrupole MS applying electrospray ionization in positive mode by multiple reaction monitoring (MRM). The method was fully validated and granted quantitative data in a linear range of 0.2 – 2.7 ng/ml, with limit of detection at 0.05 ng/ml and limit of quantification at 0.2 ng/ml. The method was developed to support a pharmacokinetic study of phenylephrine in a population of infants
title: Metastatic melanoma in the gallbladder
Creators: name: Ferrão Mendes, Vasco
Publisher: name: EURORAD
Year: 2025
Subjects: subject: Abdominal imaging
subject: Biliary Tract / Gallbladder
subject: Soft tissues / Skin
subject: CT
subject: PET-CT
subject: Clinical Case

description: Clinical History: A female patient in her 50s with a known diagnosis of melanoma of the pectoral region underwent a follow-up PET/CT.

description: 44 years, female
Strong rational Diophantine D(q)-triples
Creators: name: Dujella, Andrej
name: Paganin, Matteo
name: Sadek, Mohammad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D09, 11G05

description: We show that for infinitely many square-free integers q there exist infinitely many triples of rational numbers {a, b, c} such that a^2 + q, b^2 + q, c^2 + q, ab + q, ac + q and bc + q are squares of rational numbers.
description: 8 pages
title: Application of SNP markers to study genetic structure of saithe (Pollachius virens) in the Northeast Atlantic
Creators: name: Saha, Atal
name: Kirubakaran, Tina Graceline
name: Kent, Matthew
name: Lien, Sigbjørn
name: Westgaard, Jon-Ivar
name: Fevolden, Svein Erik
name: Hauser, Lorenz
name: Knutsen, Halvor
name: Cadrin, Steve
name: Johansen, Torild
Publisher: name: ASC 2012 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.Saithe (Pollachius virens) is a highly migratory and commercially important fish species in the North Atlantic. However, the question of consistency between management units and population genetic structure remains.
Working Lands Conservation Contract Modifications: Patterns in Dropped Practices
Creators: name: Wallander, Steven
name: Claassen, Roger
name: Hill, Alexandra
name: Fooks, Jacob
name: Wallander, Steven
name: Claassen, Roger
name: Hill, Alexandra
name: Fooks, Jacob
Publisher: name: Unknown
Year: 2019
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Working lands conservation programs
subject: deobligations
subject: adaptive management
subject: contract compliance
subject: contract structure

description: Since 1996, USDA working lands programs have resulted in hundreds of thousands of conservation contracts—voluntary agreements between USDA and program participants. Within each contract, the participant agrees to install or implement a set of conservation practices, and USDA agrees to provide technical and financial assistance to the participant. The use of contracts is central to the programs because of the complexity of addressing conservation goals—many contracts have multiple practices—and because of the time lags involved in installing and implementing conservation practices. A large majority of practices on these contracts are installed as planned. This study examines data on the 10 to 20 percent of practices that participants who signed contracts in the Environmental Quality Incentives Program in fiscal year 2010 did not implement as planned and dropped from their contracts. We find differences in the frequency with which specific practices are dropped, as well as in the likelihood that some types of contracts have at least one dropped practice. These differences suggest participants earn different levels of private benefits from installing or implementing conservation practices, which results in varying incentives to complete practices. Examining patterns in dropped practices reveals these private benefits, which are generally not known by program managers at the time participants sign conservation contracts. In this report, we discuss the significance of unobserved private incentives in possible policy design options—changes in ranking criteria, restrictions on contract structure, use of bundled practices at varied cost-share rates, and changes to costshare rates.
On the ‘optimal’ density power divergence tuning parameter
Creators: name: Sancharee Basak
name: Ayanendranath Basu
name: M. C. Jones
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Molecular Biology
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The density power divergence, indexed by a single tuning parameter α, has proved to be a very useful tool in minimum distance inference. The family of density power divergences provides a generalized estimation scheme which includes likelihood-based procedures (represented by choice α=0 for the tuning parameter) as a special case. However, under data contamination, this scheme provides several more stable choices for model fitting and analysis (provided by positive values for the tuning parameter α). As larger values of α necessarily lead to a drop in model efficiency, determining the optimal value of α to provide the best compromise between model-efficiency and stability against data contamination in any real situation is a major challenge. In this paper, we provide a refinement of an existing technique with the aim of eliminating the dependence of the procedure on an initial pilot estimator. Numerical evidence is provided to demonstrate the very good performance of the method. Our technique has a general flavour, and we expect that similar tuning parameter selection algorithms will work well for other M-estimators, or any robust procedure that depends on the choice of a tuning parameter.
Raw image BV10
Creators: name: Assohoun Wilfried Arnaud Ahoulou
Publisher: name: figshare
Year: 2020
Subjects: subject: 40403 Geophysical Fluid Dynamics
subject: FOS: Earth and related environmental sciences
subject: Solid Earth Sciences
subject: 40603 Hydrogeology

description: Data (Raw image; Flow Rate 10 ml/h)
Towards a New Sacred : Past, Present and Future Forms of Non-denominational Protestant Architecture
Creators: name: Stewart, Alexandra Adair
Publisher: name: The University of British Columbia
Year: 2019

description: This project begins with an examination of the architecture of large, non-denominational Protestant churches, often referred to as megachurches. This yielded an understanding of these religious institutions and how they function architecturally, programmatically, phenomenologically as well as how they fit into larger traditions in the history of Protestant architecture. Understanding these functions led to critiques of the megachurch in regards to siting, vehicle dependence, generic building material, construction and aesthetic qualities, an insular presence within larger contexts and massive, often under-utilized spaces. These critiques and observations formed design provocations for the design component of the project. The work conducted in part one of the project identified three sites as potential candidates for the project, while in the second half of the project, one site, the Sperling Annex Rectifier station, was chosen as the single location. The design proposal focuses on the context of Vancouver and engages the particular climates for religious institutions and urban social engagement in the city. The design proposal is for a small, non-denominational Protestant church with a modest program that includes a 150-seat sanctuary, Sunday school/classroom spaces, administrative and church office space, childcare facilities, a cafe, and flexible social and public space. A chosen site adjacent to the Arbutus greenway drives a design focused on social gathering and community building around an important future transit route and social space in Vancouver’s urban fabric. Ideas of gathering and community building inform the large design moves of the church, which seeks to propose an alternative to the megachurch typology studied previously and suggests instead a small church designed around principles of site specificity, community engagement, cohesion with surrounding context, flexible building use and the reuse and adaptation of a historical, heritage building for an architecturally unique and expressive house of worship. These design moves included a gathered worship space, an entry sequence and circulation patterns within the building that form a “social concourse” en route to worship space and other functional spaces within the building and outdoor areas that connect to the greenway and create inviting, public space. With such a proposed design and strategies for implementing it, the project proposes that the critiques identified in early precedent studies may be addressed in ways that incorporate new strategies to create expressive and original sacred space while still in keeping with larger trends and shifts in traditions of Protestant architecture.
Εκπαιδευτικός ως ηγέτης: Προοπτικές και προκλήσεις στην πρωτοβάθμια εκπαίδευση
Creators: name: Εφραιμίδου, Όλγα Χριστόφορου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Εκπαιδευτικός - ηγέτης
Πρωτοβάθμια Εκπαίδευση
Ηγεσία
Teacher - Leader
Primary Education
Leadership

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας είναι η διερεύνηση του εκπαιδευτικού ως ηγέτη στην ελληνική πρωτοβάθμια εκπαίδευση. Το κεντρικό ζήτημα που θα απασχολήσει την συγκεκριμένη έρευνα είναι το κατά πόσο είναι υπαρκτός και εφαρμόζεται αυτός ο ρόλος στο ελληνικό εκπαιδευτικό σύστημα. Ακόμα, θα εξεταστεί με τη χρήση της ποιοτικής μεθόδου, κατά πόσο προωθείται από την εκπαίδευση, και πιο συγκεκριμένα από την ίδια τη σχολική μονάδα ο ρόλος του εκπαιδευτικού ως ηγέτη, έτσι ώστε να έχουν οι εκπαιδευτικοί τη δυνατότητα ανάληψης αυτό του ρόλου. Ειδικότερα, σημείο αναφοράς αποτελεί ο ίδιος ο εκπαιδευτικός πρωτοβάθμιας εκπαίδευσης, καθώς θα αποτελέσει και τον πρωταγωνιστή στη διαδικασία της έρευνας. Η έρευνα θα διεξαχθεί με τη χρήση της ποιοτικής μεθόδου και πιο συγκεκριμένα με την διενέργεια συνεντεύξεων σε εν ενεργεία εκπαιδευτικούς πρωτοβάθμιας εκπαίδευσης στη περιοχή της Θεσσαλονίκης, μέσω τηλεφωνικών συνεντεύξεων και όχι διά ζώσης, λόγω της πανδημίας και των περιοριστικών μέτρων που εφαρμόστηκαν στη χώρα μας.
description: The purpose of this master's thesis is to investigate the teacher as a leader in Greek primary education. The central issue that will occupy this research is whether this role exists and is applied in the Greek education system. Furthermore, the role of the teacher as a leader will be examined using the qualitative method, whether it is promoted by the education, and more specifically by the school unit itself, so that the teachers have the opportunity to take on this role. In particular, the reference point is the primary education teacher himself, as he will be the leading actor in the research process. The research conducted using the qualitative method and more specifically by conducting interviews with active primary school teachers in the area of Thessaloniki, through telephone interviews and not face to face, due to the pandemic and restrictive measures implemented in our country.
Gaia-DR2 extended kinematical maps. Part II: Dynamics in the Galactic disk explaining radial and vertical velocities
Creators: name: Lopez-Corredoira, M.
name: Garzon, F.
name: Wang, H. -F.
name: Labini, F. Sylos
name: Nagy, R.
name: Chrobakova, Z.
name: Chang, J.
name: Villarroel, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: In our Paper I, by using statistical deconvolution methods, extended kinematics maps of Gaia-DR2 data have been produced in a range of heliocentric distances that are a factor of two to three larger than those analyzed previously by the Gaia Collaboration with the same data. It added the range of Galactocentric distances between 13 kpc and 20 kpc to the previous maps. Aims: Here, we investigate the dynamical effects produced by different mechanisms that can explain the radial and vertical components of these extended kinematic maps, including a decomposition of bending and breathing of the vertical components. This paper as a whole tries to be a compendium of different dynamical mechanisms whose predictions can be compared to the kinematic maps. Methods: Using analytical methods or simulations, we are able to predict the main dynamical factors and compare them to the predictions of the extended kinematic maps of Gaia-DR2. Results: The gravitational influence of Galactic components that are different from the disk, such as the long bar or bulge, the spiral arms, or a tidal interaction with Sagittarius dwarf galaxy, may explain some features of the velocity maps, especially in the inner parts of the disk. However, they are not sufficient in explaining the most conspicuous gradients in the outer disk. Vertical motions might be dominated by external perturbations or mergers, although a minor component may be due to a warp whose amplitude evolves with time. Here, we show with two different methods, which analyze the dispersion of velocities, that the mass distribution of the disk is flared. Despite these partial explanations, the main observed features can only be explained in terms of out-of-equilibrium models, which are either due to external perturbers or to the fact that the disk has not had time to reach equilibrium since its formation.
description: 15 pages, 14 figures, accepted to be published in A&A
Additional file 8 of Early corticosteroid dose tapering in patients with acute exacerbation of idiopathic pulmonary fibrosis
Creators: name: Anan, Keisuke
name: Kataoka, Yuki
name: Ichikado, Kazuya
name: Kawamura, Kodai
name: Johkoh, Takeshi
name: Fujimoto, Kiminori
name: Tobino, Kazunori
name: Tachikawa, Ryo
name: Ito, Hiroyuki
name: Nakamura, Takahito
name: Kishaba, Tomoo
name: Inomata, Minoru
name: Kamitani, Tsukasa
name: Yamazaki, Hajime
name: Ogawa, Yusuke
name: Yamamoto, Yosuke
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 60506 Virology
subject: FOS: Biological sciences

description: Supplementary Material 8
Evidencing Missing Resources of the Documentational Approach to Didactics. Toward Ten Programs of Research/Development for Enriching This Approach
Creators: name: Trouche, Luc
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: This chapter proposes a view from inside the DAD, starting from determining some essential resources missing of DAD, to proposing 10 programs of research/development for developing it. It could be considered as a follow-up of Chapter 1, where Ghislaine Gueudet situates the current state of DAD in looking back to its origin: chapter 12 proposes a possible future of this approach in analyzing its current state. It determines the missing resources of DAD in questioning current and past PhD students who have anchored their research in DAD. What did/do they learn in using DAD as a main theoretical resource; to which extent did/do they estimate that they have enriched DAD by their own work? Which are, according to them, the still missing resources of DAD? Which of these resources should be developed by DAD from itself, and/or in co-working with other theoretical framework? From this inquiry, this chapter proposes ten perspectives of research, aiming to develop some theoretical blind points of DAD, or to develop some methodological tools, or to deepen the cultural/social aspects of DAD in questioning the naming systems used by teachers when interacting with resources. This chapter echoes actually different perspectives of research already present, as promising germs, in previous chapters of the book.
title: Integrated Bayesian risk analysis of ecosystem management in the Gulf of Finland, the Baltic Sea How to do it?
Creators: name: Helle, Inari
name: Vanhatalo, Jarno
name: Rahikainen, Mika
name: Mäntyniemi, Samu
name: Kuikka, Sakari
Publisher: name: ASC 2012 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.Human activities may have devastating effects on marine and freshwater ecosystems. The negative impacts can develop gradually (e.g. increased nutrient runoff resulting to eutrophication) or they can be abrupt and catastrophic (e.g. spills of harmful substances). Usually both the frequency and impacts of these events are difficult to predict and scientific uncertainties are high. In addition, ecosystems are often threatened not only by a single factor, but instead by multiple stressors at the same time. Due to this complexity it is difficult e.g. for decision-makers to realistically evaluate the effects of alternative management options. In this paper we demonstrate how to create a probabilistic decision model to assess the effects of several risk factors on different components of the ecosystem in the Gulf of Finland, the easternmost part of the Baltic Sea. The risk elements considered are eutrophication, oil spills and harvesting. With the model one can estimate the effects of these factors on some example species and water quality variables in the Gulf of Finland. The general model is a Bayesian network, which uses various inputs, e.g. the results produced with 3D ecosystem models and stochastic population dynamics simulation models. Although we use the Gulf of Finland as a case study, the methodology is applicable also to other areas facing multiple risks. The model can also be developed further to encompass the costs and benefits of the alternative management actions.
Excitonic Photoluminescence in Semiconductor Quantum Wells: Plasma versus Excitons
Creators: name: Chatterjee, S.
name: Ell, C.
name: Mosor, S.
name: Khitrova, G.
name: Gibbs, H. M.
name: Hoyer, W.
name: Kira, M.
name: Koch, S. W.
name: Prineas, J. P.
name: Stolz, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Time-resolved photoluminescence spectra after nonresonant excitation show a distinct 1s resonance, independent of the existence of bound excitons. A microscopic analysis identifies excitonic and electron-hole plasma contributions. For low temperatures and low densities the excitonic emission is extremely sensitive to even minute optically active exciton populations making it possible to extract a phase diagram for incoherent excitonic populations.
description: 9 pages, 4 figures
Star-disk alignment in the protoplanetary disks: SPH simulation of the collapse of turbulent molecular cloud cores
Creators: name: Takaishi, Daisuke
name: Tsukamoto, Yusuke
name: Suto, Yasushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We perform a series of three-dimensional smoothed particle hydrodynamics (SPH) simulations to study the evolution of the angle between the protostellar spin and the protoplanetary disk rotation axes (the star-disk angle $ψ_{\rm sd}$) in turbulent molecular cloud cores. While $ψ_{\rm sd}$ at the protostar formation epoch exhibits broad distribution up to $\sim 130^{\circ}$, $ψ_{\rm sd}$ decreases ($\lesssim 20^{\circ}$) in a timescale of $\sim 10^{4}$ yr. This timescale of the star-disk alignment, $t_{\rm alignment}$, corresponds basically to the mass doubling time of the central protostar, in which the protostar forgets its initial spin direction due to the mass accretion from the disk. Values of $ψ_{\rm sd}$ both at $t=10^2$ yr and $t=10^5$ yr after the protostar formation are independent of the ratios of thermal and turbulent energies to gravitational energy of the initial cloud cores: $α=E_{\rm thermal}/|E_{\rm gravity}|$ and $γ_{\rm turb}=E_{\rm turbulence}/|E_{\rm gravity}|$. We also find that a warped disk is possibly formed by the turbulent accretion flow from the circumstellar envelope.
description: Accepted for publication in MNRAS (16 pages, 16 figures, 2 tables)
USDA School Meal Programs: How and Why the Cost of Food Purchases Varies Across Locales
Creators: name: Ollinger, Michael
name: Guthrie, Joanne
name: Peo, Audrey
name: Ollinger, Michael
name: Guthrie, Joanne
name: Peo, Audrey
Publisher: name: Unknown
Year: 2018
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Public Economics
subject: National School Lunch Program
subject: School Breakfast Program
subject: school meals
subject: school food authorities
subject: food costs

description: The United States Department of Agriculture’s (USDA) National School Lunch and School Breakfast Programs are operated locally by school food authorities (SFAs), usually a part of the local school district. SFAs are reimbursed at nationally set rates for the cost of meals served to participating students. Previous USDA, Economic Research Service (ERS) analysis found substantial variation in total costs across SFAs but did not identify the sources of those cost differences. This report examines food cost differences, using a large national sample of SFAs to examine how food purchase costs vary by SFA location, characteristics, and purchasing practices. Results show that food costs dropped with the volume of products purchased. Food costs also varied considerably across location—SFAs in the Northern Plains and Mountain regions had higher average food costs, and SFAs in the Southeast regions had the lowest food costs for major food groups. SFA purchasing practices also affected costs. Purchasing cooperatives, a popular strategy among SFAs, had mixed associations with food costs, possibly because SFAs may use them not only to reduce costs, but also for aims such as obtaining wider access to desired food products.
Optimized Jastrow-Slater wave functions for ground and excited states: Application to the lowest states of ethene
Creators: name: Schautz, Friedemann
name: Filippi, Claudia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A quantum Monte Carlo method is presented for determining multi-determinantal Jastrow-Slater wave functions for which the energy is stationary with respect to the simultaneous optimization of orbitals and configuration interaction coefficients. The approach is within the framework of the so-called energy fluctuation potential method which minimizes the energy in an iterative fashion based on Monte Carlo sampling and a fitting of the local energy fluctuations. The optimization of the orbitals is combined with the optimization of the configuration interaction coefficients through the use of additional single excitations to a set of external orbitals. A new set of orbitals is then obtained from the natural orbitals of this enlarged configuration interaction expansion. For excited states, the approach is extended to treat the average of several states within the same irreducible representation of the pointgroup of the molecule. The relationship of our optimization method with the stochastic reconfiguration technique by Sorella et al. is examined. Finally, the performance of our approach is illustrated with the lowest states of ethene, in particular with the difficult case of the singlet 1B_1u state.
description: 12 pages, 2 figures
title: Multiple interests across European coastal waters: The need for a common language
Creators: name: Ramos, Jorge
name: Soma, Katrine
name: Bergh, Øivind
name: Schulze, Torsten
name: Sell, Anne
name: Stelzenmüller, Vanessa
name: Mäkinen, Timo
name: Grati, Fabio
name: O’Donnell, Vicki
name: Fabi, Gianna
name: Hoefnagel, Ellen
name: Gimple, Antje
Publisher: name: ASC 2012 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.The European marine and coastal areas are large and diversified in several aspects. Alongside the increasing complexity in the marine and coastal areas, grows the need of coexistence among the different activities that for one reason or another compete at first instance for space and actual or potential resources (Dempster and Sanchez-Jerez 2008).
Higher order moments of the estimated tangency portfolio weights
Creators: name: Javed, Farrukh
name: Mazur, Stepan
name: Ngailo, Edward
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: In this paper, we consider the estimated weights of the tangency portfolio. We derive analytical expressions for the higher order non-central and central moments of these weights when the returns are assumed to be independently and multivariate normally distributed. Moreover, the expressions for mean, variance, skewness and kurtosis of the estimated weights are obtained in closed forms. Later, we complement our results with a simulation study where data from the multivariate normal and t-distributions are simulated, and the first four moments of estimated weights are computed by using the Monte Carlo experiment. It is noteworthy to mention that the distributional assumption of returns is found to be important, especially for the first two moments. Finally, through an empirical illustration utilizing returns of four financial indices listed in NASDAQ stock exchange, we observe the presence of time dynamics in higher moments.
Kaiser Family Foundation Poll: Early April 2020 Kaiser Health Tracking Poll
Creators: name: Kaiser Family Foundation
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Health insurance coverage (1); life disrupted by coronavirus outbreak (1); computer/smart phone/tablet with internet access/use (4); registered to vote (1); importance of various issues in choosing who to vote for (9); Affordable Care Act (ACA) (1); Medicare-for-all (1); government-administered health plan/public option (1); health care plan preference (1); President Donald Trump job performance (1); Trump's handling of various issues (4); federal government/state government should be responsible for response to coronavirus outbreak (1); federal/state government currently leading response to outbreak (1); slowing spread of coronavirus, even if businesses must stay closed vs. protecting economy, even if more people will get infected and die (1); trust in various people/groups to provide reliable information on coronavirus (6); biggest source of worry about coronavirus outbreak (1); effect of worry/stress on mental health (1); various concerns about coronavirus (11); feelings about coronavirus outbreak (1); various actions taken because of outbreak (5); negative impacts of outbreak on daily life (6); been tested for coronavirus (1); health insurance coverage (2); health status (1); paid time off (2); work in health care setting (1); political partisanship (2); political ideology (1); likelihood of voting for Trump/Democratic nominee in 2020 presidential election (1).
Measurements of CP-violating Asymmetries and Branching Fractions in B Meson Decays to eta' K
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present measurements of the branching fractions of the decays B+ -> eta' K+ and B0 -> eta' K0. For B0 -> eta' K0s we also measure the time dependent CP-violation parameters S and C, and for B+ ->eta' K+ the time-integrated charge asymmetry Ach. The data sample corresponds to 88.9 million BBbar pairs produced by e+e- annihilation at the Upsillon(4S). The results are B(B+->eta'K+) = (76.9 +/- 3.5 +/- 4.4)*10^-6, B(B0->eta'K0) = (60.6 +/- 5.6 +/- 4.6)*10^-6, S = 0.02+/-0.34 +/- 0.03, C = 0.10+/-0.22 +/- 0.04, and Ach = 0.037 +/- 0.045+/- 0.011.
description: 7 pages, 2 postscript figues, resubmitted Phys. Rev. Letters in response to review. Revised K0s reconstruction efficiency calculation resulting in ~10% upward revision of the value of B(B0->eta'K0) (and downward shift of the charged/neutral ratio of decay rates); minor revision of systematic on C
Διαχείριση των αποβλήτων ηλεκτρικού και ηλεκτρονικού εξοπλισμού (ΑΗΗΕ) και η επίδρασή τους στο περιβάλλον. Διερεύνηση της κοινής γνώμης και της περιβαλλοντικής ευαισθησίας
Creators: name: Κόχρα, Θεοδώρα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: ΑΗΗΕ
Διαχείριση
Περιβάλλον
WEEE
Managements
Environment

description: Η διαχείριση των στερεών αποβλήτων αποτελεί ένα μείζον και συνεχώς διογκούμενο περιβαλλοντικό ζήτημα. Ένα ρεύμα των στερεών αποβλήτων αποτελούν και τα απόβλητα ηλεκτρικού και ηλεκτρονικού εξοπλισμού (AHHE). Όταν τα ΑΗΗΕ απορρίπτονται στους ΧΥΤΑ, απελευθερώνουν τοξικές ουσίες στο περιβάλλον έχοντας σοβαρές επιπτώσεις τόσο στην ανθρώπινη υγεία, όσο και τα οικοσυστήματα. Επιπλέον, η μη ορθολογική διαχείρισή τους συμβάλει στην απελευθέρωση αερίων του θερμοκηπίου στην ατμόσφαιρα και εντείνει την κλιματική αλλαγή. Τις τελευταίες δεκαετίες με την αύξηση του παγκόσμιου πληθυσμού, την ταχεία ανάπτυξη της τεχνολογίας αλλά και την αύξηση των αναγκών, οι ποσότητες ΑΗΗΕ έχουν αυξηθεί ραγδαία. Στην παρούσα εργασία περιγράφονται αναλυτικά οι κατηγορίες και η σύσταση των ΑΗΗΕ, οι κύριες επιπτώσεις τους στο περιβάλλον και την ανθρώπινη υγεία, καθώς και οι πολιτικές και η νομοθεσία γύρω από αυτά. Επιπλέον, παρουσιάζονται οι μέθοδοι διαχείρισής τους σε εθνικό, αλλά και παγκόσμιο επίπεδο. Παράλληλα, έπειτα από τη διεξαγωγή ερωτηματολογίου, διερευνώνται οι καταναλωτικές συνήθειες των ατόμων στην Ελλάδα σχετικά με την αγορά ηλεκτρικών συσκευών, αλλά και οι συνήθειες και οι γνώσεις τους γύρω από το πρόγραμμα ανακύκλωσης ηλεκτρικών συσκευών. Τέλος, διεξάγονται ορισμένα συμπεράσματα που αφορούν τις τάσεις και τις αντιλήψεις των ατόμων απέναντι σε ένα τόσο σημαντικό περιβαλλοντικό ζήτημα, όπως αυτό των ΑΗΗΕ.
description: Solid waste management is a major and rapidly growing environmental concern. Waste from electrical and electronic equipment (WEEE), is the focus of this research. WEEE, discharged in landfills in the past, had negative impact on the environment due to their toxic constituents, and implicitly negative effect on human health. On the other hand, their improper management contributes to the release of greenhouse gases into the atmosphere and intensifies climate change. In recent decades, due to the world population growth, the immense development of technology and the consumers’ ever-increasing needs, the quantities of electrical and electronic wastes have augmented enormously. This thesis presents and analyzes the categories and composition of various WEEE, their main effects on the environment and human health, and the policies and legislation that are in effect. The available WEEE management methods are presented on a national and global scale. At the end, a questionnaire is constructed to investigate the consumer habits of people in Greece regarding the purchase of electrical appliances, as well as their knowledge about the electrical appliances’ recycling program. Finally, important conclusions are drawn regarding the tendency and perception of individuals with respect to such an important environmental issue, as that of WEEE.
Nanoskalige, π-konjugierte Leiterpolymere
Creators: name: Schneider, Lydia
Publisher: name: Universitäts- und Landesbibliothek Bonn
Year: 2024
Subjects: subject: ladder polymers
subject: pi-conjugated
subject: semiconductors
subject: electrooptical active
subject: polymerization
subject: Sonogashira coupling
subject: ddc:540

description: (noch nicht zugänglich / not yet accessible)
Additional file 9 of Early corticosteroid dose tapering in patients with acute exacerbation of idiopathic pulmonary fibrosis
Creators: name: Anan, Keisuke
name: Kataoka, Yuki
name: Ichikado, Kazuya
name: Kawamura, Kodai
name: Johkoh, Takeshi
name: Fujimoto, Kiminori
name: Tobino, Kazunori
name: Tachikawa, Ryo
name: Ito, Hiroyuki
name: Nakamura, Takahito
name: Kishaba, Tomoo
name: Inomata, Minoru
name: Kamitani, Tsukasa
name: Yamazaki, Hajime
name: Ogawa, Yusuke
name: Yamamoto, Yosuke
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 60506 Virology
subject: FOS: Biological sciences

description: Supplementary Material 9