cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Co-creation – a facilitator for circular economy implementation? A case study in the kitchen industry
Creators: name: Dokter, Giliam
name: Andersson, Sofie
name: Thuvander, Liane
name: Rahe, Ulrike
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik, Technologie
subject: 300 Sozialwissenschaften
subject: circular economy
subject: circular design
subject: circular business model
subject: co-creation

description: Although the concept of Circular Economy (CE) has gained significant attention in business and academia, knowledge and strategies on how to bring circularity into practice still remains limited. Most research efforts are theoretical and focus on waste handling, resource use and environmental impact. Only few studies focus on the practical implementation of CE. There is a lack of research on practical cases, where both the design process and involved stakeholders are considered. This paper reports on a case study carried out in collaboration with a Scandinavian kitchen manufacturer, to increase the understanding on how co-creation strategies can contribute to the implementation of circular economy in the kitchen industry. Based on three workshops followed by five interviews with workshop participants, insights have been gained regarding barriers and opportunities for implementation of circular economy in small manufacturing firms. Results indicate that the co-creation workshops have led to an increased understanding of CE and change of attitude towards CE among the participants.
Fiscal devaluation in a Monetary Union
Creators: name: Engler, Philipp
name: Ganelli, Giovanni
name: Tervala, Juha
name: Voigts, Simon
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: Fiscal devaluation
subject: fiscal policy
subject: euro area
subject: currency union
subject: current account
subject: 300 Sozialwissenschaften::330 Wirtschaft::337 Weltwirtschaft

description: Between 1999 and the onset of the economic crisis in 2008 real exchange rates in Greece, Ireland, Italy, Portugal and Spain appreciated relative to the rest of the euro area. This divergence in competitiveness was reflected in the emergence of current account imbalances. Given that exchange rate devaluations are no longer available in a monetary union, one potential way to address such imbalances is through a fiscal devaluation. We use a DSGE model calibrated to the euro area to investigate the impact of a fiscal devaluation, modeled as a revenue-neutral shift from employers’ social contributions to the Value Added Tax. We find that a fiscal devaluation carried out in ‘Southern European countries’ has a strong positive effect on output, but a mild effect on the trade balance of these countries. In addition, the negative effect on ‘Central-Northern countries’ output is weak.
Η χρήση ψηφιακού σχεδίου μαθήματος με HyperDoc στη διδασκαλία των μαθηματικών
Creators: name: Καραγιώργου, Στεργιανή Ευαγγέλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: subject: Ψηφιακό Σχέδιο μαθήματος
subject: HyperDoc
subject: Μαθηματικά
subject: Digital Lesson Plan
subject: Mathematics
subject: FOS: Mathematics

description: Σκοπός της παρούσας εργασίας είναι η παρουσίαση ενός νέου διαδραστικού ψηφιακού εργαλείου, του HyperDoc, το οποίο είναι ένα είδος ηλεκτρονικού εγγράφου που περιέχει υπερσυνδέσμους (links) και δίνει τη δυνατότητα δημιουργίας ψηφιακού σχεδίου μαθήματος (ΨΣΜ) σε όλα τα διδακτικά αντικείμενα. Ειδικότερα, περιλαμβάνονται αναλυτικά όλα τα βήματα δημιουργίας πέντε ψηφιακών σχεδίων με τη χρήση του HyperDoc για τη διδασκαλία των μαθηματικών, και συγκεκριμένα των κλασμάτων. Οι δραστηριότητες οι οποίες περιελήφθησαν στα ψηφιακά σχέδια μαθήματος είναι σχετικές με τη διδασκαλία των ισοδύναμων κλασμάτων, των μεικτών αριθμών, τις πράξεις της πρόσθεσης, του πολλαπλασιασμού και της διαίρεσης κλασμάτων και τη διδασκαλία της αναγωγής στην κλασματική μονάδα. Κάθε ΨΣΜ (HyperDoc) ακολουθεί έναν κύκλο μάθησης που βασίζεται σε στάδια που προσομοιάζουν με την πορεία διδασκαλίας της παραδοσιακής προσέγγισης με τη διαφορά ότι στο HyperDoc ενσωματώνονται λογισμικά ή εφαρμογές που ενισχύουν τη διαδικασία της μάθησης κι ο μαθητής εργάζεται αυτόνομα ή συνεργατικά χωρίς τη μεσολάβηση του εκπαιδευτικού.
description: The purpose of this work is to present a new interactive digital tool, HyperDoc, which is a type of electronic document that contains hyperlinks and enables the creation of a digital lesson plan (DLP) in all teaching subjects. In particular, all the steps of creating five digital plans using HyperDoc for teaching mathematics, specifically fractions, are included in detail. The activities included in the digital lesson plans are related to teaching equivalent fractions, mixed numbers, the operations of adding, multiplying and dividing fractions as well as teaching the fraction of reduction to the unit. Each HyperDoc follows a learning cycle based on stages similar to the teaching process of the traditional approach with the difference that HyperDoc integrates software or applications that enhance the learning process and the student works autonomously or cooperatively without any kind of teacher intervention.
Markets wanted – expectation overshooting in transition
Creators: name: Neher, Frank
Publisher: name: Freie Universität Berlin
Year: 2011
Subjects: subject: convergence
subject: beliefs
subject: public support
subject: reform
subject: bias
subject: signalling
subject: 300 Sozialwissenschaften::330 Wirtschaft::337 Weltwirtschaft

description: We analyse and compare individual beliefs about the effects of competition and their evolution over time in transition economies and experienced market economies. At the onset of transition, competition beliefs in transition countries are far more positive than in market economies. Over time, this difference has vanishes. Convergence can be attributed to changing believes in transition countries. We argue that overly optimistic competition beliefs in transition countries contributed to the possibility of implementing far reaching pro-market reforms and show that competition beliefs underlay support for economic reform. The empirical analysis is supplemented with a simple learning model rationalizing the findings on competition belief overshooting.
Signal Processing Methods for Greek Orthodox Hymn Recognition
Creators: name: Καρασαββίδης, Κωνσταντίνος Συμεών
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Επεξεργασία Σήματος
Αναγνώριση Ύμνων
Ηχητικό αποτύπωμα
Signal Processing
Hymns Recognition
Audio Fingerprints

description: In this work, an algorithm for recognizing Byzantine hymns was developed. The Byzantine hymns have unique characteristics and they mainly consist of vocals, making their recognition a challenging task due to the unique characteristics of each chanter’s voice and the variations in tempo. To perform the recognition, a process involving the extraction of audio fingerprints was utilized, which is one of the first implementations of the method in the field of Byzantine music. That technique, first, relies on creating a database of known recorded hymns. For each hymn, a set of fingerprints is extracted based on the spectral peaks that are present on the spectrogram. The test procedure involves comparing the fingerprints of random unknown samples to the original database and evaluating the best match in each case. A set of parameters was, also, examined and their effect was evaluated in terms of the overall performance of the algorithm.
description: Στην παρούσα δουλειά, αναπτύχθηκε ένας αλγόριθμος για την αναγνώριση Ελληνορθόδοξων εκκλησιαστικών ύμνων και βυζαντινής μουσικής. Η βυζαντινή μουσική έχει μοναδικά χαρακτηριστικά και αποτελείται κυρίως από φωνητικά, μετατρέποντας την αναγνώριση σε ένα δύσκολο έργο εξαιτίας των μοναδικών χαρακτηριστικών της φωνής κάθε ψάλτη και των διακυμάνσεων στο ρυθμό. Για την πραγματοποίηση της αναγνώρισης χρησιμοποιήθηκε μια διαδικασία εξαγωγής δακτυλικών αποτυπωμάτων ήχου, η οποία είναι μια από τις πρώτες εφαρμογές της μεθόδου στον τομέα της βυζαντινής μουσικής. Η συγκεκριμένη τεχνική, βασίζεται στη δημιουργία μιας βάσης δεδομένων γνωστών ηχογραφημένων ύμνων. Για κάθε ύμνο, εξάγεται ένα σύνολο δακτυλικών αποτυπωμάτων με βάση τις φασματικές κορυφές που υπάρχουν στο φασματογράφημα. Η διαδικασία δοκιμής περιλαμβάνει τη σύγκριση των δακτυλικών αποτυπωμάτων τυχαίων άγνωστων δειγμάτων με την αρχική βάση δεδομένων και την αξιολόγηση της καλύτερης αντιστοίχισης σε κάθε περίπτωση. Επιπλέον, εξετάστηκε ένα σύνολο παραμέτρων και αξιολογήθηκε η επίδρασή τους ως προς τη συνολική απόδοση του αλγορίθμου.
The structural evolution of the Mackie plutonic complex, southern British Columbia
Creators: name: Crowe, G. G.
Publisher: name: University of Calgary
Year: 1981
Subjects: subject: QE 611.5 C2 C54 1981
subject: Intrusions (Geology)
subject: Geology, Structural
subject: Geology - British Columbia, Southern
subject: Geology, Stratigraphic - Jurassic

description: Bibliography: p. 127-135.
Auf dem Weg zur energiesouveränen Kommune: Schlüsselfragen im Umgang mit EE-Projektentwicklern
Creators: name: Energieavantgarde Anhalt e.V.
name: Institut für ökologische Wirtschaftsforschung
name: Zentrum Technik und Gesellschaft (ZTG)
Publisher: name: Zenodo
Year: 2024

description: Die Fragensammlung bietet einen Überblick, über Schlüsselfragen, die Kommunen in Gesprächen mit Projektierern Erneuerbarer-Energie-Anlagen helfen sollen, die lokale Wertschöpfung zu sichern und die größtmöglichen Vorteile für Bürgerinnen und Bürger und die Kommune insgesamt zu erreichen. Inhaltlich gliedern sich die Fragen in die Themenschwerpunkte „Wertschöpfung“, „Planung“, „Beteiligung“ und „Vernetzung“, wobei die Auswahl und Formulierung der Fragen in interkommunaler Abstimmung in den im Projekt „PaDiSo“ durchgeführten Lernwerkstätten erfolgte. Neben den Fragen beinhaltet das Dokument zudem Verweise auf bestehende Leitfäden und Hilfestellungen.
Magnetic feature tracking, what determines the speed?
Creators: name: Guerrero, G.
name: Rheinhardt, M.
name: Dikpati, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent observations revealed that small magnetic elements abundant at the solar surface move poleward with a velocity which seems to be lower than the plasma velocity $U_θ$. Guerrero et al. (2011) explained this discrepancy as a consequence of diffusive spreading of the magnetic elements due to a positive radial gradient of $|U_θ|$. As the gradient's sign (inferred by local helioseismology) is still unclear, cases with a negative gradient are studied in this paper. Under this condition, the velocity of the magnetic tracers turns out to be larger than the plasma velocity, in disagreement with the observations. Alternative mechanisms for explaining them independently are proposed. For the turbulent magnetic pumping it is shown that it has to be unrealistically strong to reconcile the model with the observations.
description: 4 pages, 2 figures, to appear in Proceedings of IAU Symp 286, Comparative Magnetic Minima, C. H. Mandrini, eds
The Arecibo Galaxy Environment Survey V : The Virgo Cluster (I)
Creators: name: Taylor, R.
name: Davies, J. I.
name: Auld, R.
name: Minchin, R. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present 21 cm observations of a 10 $\times$ 2 degree region in the Virgo cluster, obtained as part of the Arecibo Galaxy Environment Survey. 289 sources are detected over the full redshift range (-2,000 $
description: 23 pages, 22 figures, 4 tables
title: Charitable giving in the German welfare state
title: fiscal incentives and crowding out
titleType: Subtitle
Creators: name: Bönke, Timm
name: Massarrat-Mashhadi, Nima
name: Sielaff, Christian
Publisher: name: Freie Universität Berlin
Year: 2010
Subjects: subject: Charitable giving
subject: crowding out
subject: price and income elasticity
subject: censored quantile regression
subject: income tax return data
subject: 300 Sozialwissenschaften::330 Wirtschaft::336 Öffentliche Finanzen

description: Governmental activities in welfare states influence private charitable giving predominantly in two ways: (1) government spending on the provision of public goods may cause crowding out of private charitable contributions; and (2) tax incentives may boost private charitable giving. For a rich sample of German income tax returns, we estimate elasticities of charitable giving regarding tax incentives, income and governmental spending. Using censored quantile regression, we are able to derive results for different points of the underlying distribution of charitable giving. Assuming a world with impure altruism (Andreoni 1990), we find evidence for impurely altruistic giving behaviour. Taking crowding out into account, tax deductibility of charitable giving suffices to foster private giving to offset foregone tax revenues.
Do natural resource sectors rely less on external finance than manufacturing sectors?
Creators: name: Hattendorff, Christian
Publisher: name: Freie Universität Berlin
Year: 2012
Subjects: subject: Financial development
subject: external dependence
subject: natural resources
subject: 300 Sozialwissenschaften::320 Politikwissenschaft

description: The finding that industrial sectors differ in their dependence on external finance for sector-specific technological reasons and, thus, rely to a different degree on financial development has become a major concept in studies conducted on both growth and trade. Although natural resources might play an important role in each of these fields, research on industries' financial dependence has been limited so far to manufacturing. By focusing on the natural resource sectors, the present paper aims to close this gap in its analysis. It rejects the common view that the natural resource industry in particular is less dependent on the financial system, and finds that the results of the analysis depend on the specific measure being applied. Measures relating investment and cash flow indicate high external dependence, while measures accounting for more short-term liquidity needs demonstrate rather low external dependence of natural resource firms. These results do not change considerably over time or across countries.
title: Flexibilisation without Hesitation?
title: Temporary contracts and workers' satisfaction
titleType: Subtitle
Creators: name: Chadi, Adrian
name: Hetschko, Clemens
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: labour market flexibilisation
subject: job satisfaction
subject: temporary contracts
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: Fixed-term contracts are often considered a key policy tool for increasing employment. As we show that contract limitation lowers job satisfaction using data from the German Socio-Economic Panel study, we detect a drawback of promoting temporary employment that has not been identified so far. We find that the “honeymoon-hangover” effect of a new job must be taken into account to reveal this result. We examine reasons why employees suffer from temporary contracts and analyse the “Flexicurity” idea of compensating workers with security. Our findings contribute to research on workers’ well-being as well as to the debate on labour market flexibilisation.
Adaptive optics assisted near-infrared polarization measurements of sources in the Galactic Center
Creators: name: Buchholz, Rainer M.
name: Witzel, Gunther
name: Schödel, Rainer
name: Eckart, Andreas
name: Bremer, Markus
name: Muzic, Koraljka
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The goals of this work are to provide NIR polarimetry of the stellar sources in the central pc at the resolution of an 8m telescope for the first time, along with new insights into the nature of the known bright bow-shock sources. We use AO assisted observations with the ESO VLT in the H- and Ks-band, applying high precision photometric methods developed for crowded fields and a new polarimetric calibration for NACO to produce polarization maps of the central 3"x19", in addition to spatially resolved polarimetry and a variability analysis on the extended sources. We find foreground polarization parallel to the Galactic plane, with averages of (4.6+/-0.6)% at 26°+/-6° (Ks) and (9.3+/-1.3)% at 20°+/-6° (H) in the center. At larger distances from the center, we find different polarization parameters: (7.5+/-1.0)% at 11°+/-6° (Ks) and (12.1+/-2.1)% at 13°+/-6° (H). p_H/p_Ks peaks at 1.9+/-0.4, with a power law index for the wavelength dependency of alpha = 2.4+/-0.7. This also varies over the FOV, with higher values in the center, indicating local effects on the total polarization, possibly dichroic extinction by Northern Arm dust. The two extended sources IRS 21 and 1W show similar intrinsic polarization degrees of 6.1% resp. 7.8% (Ks) and 6.9% (H, only 1W) at polarization angles coincident with previous NIR and MIR findings, both in total and resolved. The spatial polarization pattern of both sources points to scattering on aligned elongated dust grains as the major source of intrinsic polarization, and matches the known orientation of the magnetic field. Our data also allows us to separate the bow shock of IRS 21 from the central source for the first time in the Ks-band, with the apex north of the center and a standoff distance of ~400 AU, matching previous estimates. This source also shows a ~50% increase in flux in the NIR over several years.
description: 26 pages, 33 figures, accepted for publication in A&A
title: David Hume: A Treatise of Human Nature: Kommentar
Creators: name: Schmidt, Alexander
name: Sonderforschungsbereich Transregio 294 "Strukturwandel Des Eigentums"
Publisher: name: Friedrich-Schiller-Universität Jena
Year: 2021
Subjects: subject: Naturrecht
subject: Rechtspositivismus
subject: 100

description: Neue Bibliothek des Eigentums
title: Personal bankcuptcy law, wealth and entrepreneurship
title: theory and evidence from the introduction of a „fresh start“
titleType: Subtitle
Creators: name: Fossen, Frank M.
Publisher: name: Freie Universität Berlin
Year: 2011
Subjects: subject: Personal bankruptcy law
subject: insolvency
subject: entrepreneurship
subject: fresh start
subject: 300 Sozialwissenschaften::330 Wirtschaft::332 Finanzwirtschaft

description: A personal bankruptcy law that allows for a “fresh start” after bankruptcy reduces the individual risk involved in entrepreneurial activity. On the other hand, as risk shifts to creditors who recover less of their credit after a debtor’s bankruptcy, lenders may charge higher interest rates or ration credit supply, which can hamper entrepreneurship. Both aspects of a more forgiving personal bankruptcy law are less relevant for wealthy potential entrepreneurs who still risk losing their wealth, but tend not to face higher interest rates because they provide collateral. This paper illustrates these effects in a model and tests the hypotheses derived by exploiting the introduction of a “fresh start” policy in Germany in 1999 as a natural experiment, based on representative household panel data. The results indicate that the insurance effect of a more forgiving personal bankruptcy law exceeds the interest effect and on balance encourages less wealthy individuals to enter into entrepreneurship.
Work Norms, Social Insurance and the Allocation of Talent
Creators: name: Corneo, Giacomo
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: work norms
subject: unemployment insurance
subject: occupational mobility
subject: economic growth
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: This paper challanges the view that weak work norms in generous welfare states makes them economically unsustainable. I develop a dynamic model of family- transmitted values that has a laissez-faire equilibrium with strong work norms coexisting with a social-insurance equilibrium with weak work norms. While the former has better incentives, the latter induces more intergenerational occupational mobility which improves the allocation of talent and fuels growth. Strong work norms arise as a defensive strategy of parents that aims at perpetuating their occupation along family lines. I present evidence from microdata showing that generous social insurance correlates with high intergenerational occupational mobility and that more mobile individuals endorse weaker work norms.
Evidence for universal conductance correction in a tunable strongly coupled nanogranular metal
Creators: name: Sachser, Roland
name: Porrati, Fabrizio
name: Schwalb, Christian H.
name: Huth, Michael
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present temperature-dependent conductivity data obtained on a sample set of nanogranular Pt-C with finely tuned inter-grain tunnel coupling strength g. For samples in the strong-coupling regime g > g_C, characterized by a finite conductivity for T -> 0, we find a logarithmic behavior at elevated temperatures and a crossover to a sqrt(T)-behavior at low temperatures over a wide range of coupling strengths g_C = 0.25 < g <= 3. The experimental observation for g > 1 is in very good agreement with recent theoretical findings on ordered granular metals in three spatial dimensions. The results indicate a validity of the predicted universal conductivity behavior that goes beyond the immediate range of the approach used in the theoretical derivation.
title: Uneven treatment of family life?
title: Horizontal equity in the U.S. tax and transfer system
titleType: Subtitle
Creators: name: Bönke, Timm
name: Eichfelder, Sebastian
name: Utz, Stephen
Publisher: name: Freie Universität Berlin
Year: 2012
Subjects: subject: horizontal equity
subject: family taxation
subject: distributive justice
subject: tax and transfer system
subject: equivalent income
subject: equivalent income taxation
subject: 300 Sozialwissenschaften::330 Wirtschaft::336 Öffentliche Finanzen

description: We analyze the distributive justice of the combined burden of income taxes, social security taxes and public transfers on employee households in the United States on the federal level and in six member states. To investigate whether the treatment of families by the aggregate tax and transfer system can be regarded as “fair”, we compare the equivalent incomes of eight different household types. Using the concepts of horizontal equity and system-inherent equivalence scales, we find evidence for a privileged treatment of families with children and a low market income due to the earned income tax credit (EIC), the child tax credit and the supplemental nutrition assistance program (SNAP). If employment taxes are interpreted as taxes in the proper sense, we obtain a favorable treatment of family households and especially married couples for middle-sized market incomes. For high market incomes, we observe a decreasing privilege for all family types. Regarding state tax and transfer systems, temporary aid for needy families (TANF) substantially increases the observed privilege for low-income families compared to singles, while the analyzed state income taxes are generally in line with the federal tax scheme. Overall, our results imply a significant contradiction in value judgments within the U.S. tax and transfer system.
Optimization Of High Endurance Single Wing Uav
Creators: name: Usevitch, James
name: Usevitch, David
name: Fry, Daniel
Publisher: name: Zenodo
Year: 2016
Subjects: optimization
single wing uav
high endurance flight

description: Efforts to create worldwide internet accessibility are familiar pursuits to large scale companies such as Facebook with their Aquila project. This research seeks to optimize the endurance of a single wing high-altitude UAV design considering mostly aerodynamics and battery design. Design variables based off of span, chord, velocity, sweep angle, washout, battery size, angle of attack, etc., will expand current research exploring the optimal aerodynamics of UAVs with optimized lithium batteries. Results were obtained using non-gradient and gradient-based optimization methods.
Preferences for redistribution around the world
Creators: name: Neher, Frank
Publisher: name: Freie Universität Berlin
Year: 2012
Subjects: subject: preferences for redistribution
subject: social rivalry effect
subject: social identity
subject: survey data
subject: World Values Survey
subject: 300 Sozialwissenschaften::330 Wirtschaft::337 Weltwirtschaft

description: Gender, income, education and self-employment are robust predictors for individual support for redistribution in the OECD. In addition, considerations of social status, the fairness of the allocation mechanism, perceived moral worth of the poor and individual autonomy are important. The results for the OECD are compared to those for a large sample of non-OECD countries which also include less developed economies. Neither gender, nor self-employment, nor fairness considerations exhibit a robust association with preferences for redistribution. However, education, income, individual autonomy and moral worth of the poor remain important determinants. On average, preferences for redistribution indicate that within the OECD, there is no desire to change redistributive policies. In contrast, in the sample of non-OECD countries, on average there is a desire to redistribute less.
Stratigraphy and sedimentology of the Upper Devonian Grosmont Formation, Alberta, Canada
Creators: name: Cutler, William Gerald
Publisher: name: University of Calgary
Year: 1982
Subjects: subject: QE 665 C88 1984
subject: Geology, Stratigraphic - Devonian
subject: Sediments (Geology)

description: Bibliography: p. 158-167.
Parenthood considerations of career women
Creators: name: Daniluk, Judith Carol
Publisher: name: University of Calgary
Year: 1982
Subjects: subject: HQ 758.8 D34 1984
subject: Parenthood - Decision-making
subject: Motherhood - Decision-making
subject: Childlessness - Decision-making
subject: Choice (Psychology)

description: Bibliography: p. 122-129.
Impacts of Vehicle Speed and Slope on Tailpipe Emissions Using Desirability Function Analysis
Creators: name: Aga, Amanuel Gebisa
name: Gebresenbet, Girma
name: Gopal, Rajendiran
name: Nallamothu, Ramesh Babu
Publisher: name: Ethiopian Journal of Science and Sustainable Development
Year: 2024

description: Pollutant emissions from vehicles can significantly increase when driving on a road with a positive slope, according to previous studies. In internal combustion engines, minimizing tailpipe emissions like CO and HC by using different strategies increases CO2. Consequently, this causes global warming through the greenhouse effect. This study aimed to determine the effect of road slope and vehicle speeds on tailpipe emissions, such as CO, HC, and CO2. Full factorial analysis was employed for the design of the experiment. An experiment was conducted in Addis Ababa, Ethiopia, using a portable emissions analyser and GPS to collect emissions data from passenger vehicles at a speed of 10, 20, 30, 40, and 50 km/h and road slopes of -2, 0, 2, 4, and 6 degrees. The regression models developed for CO2, CO, and HC were accurate, with R-squares of 98%, 92.9%, and 84.88%, respectively. Finally, desirability function analysis was employed to simultaneously optimize the responses to identify optimum points that minimize CO, HC, and CO2 formation. The results show that the best speed to simultaneously reduce CO, HC, and CO2 emissions was found to be 40 km/h on a level road and 30 km/hr on a 2-degree road slope with composite desirability of 0.83 and 0.72, respectively. As a conclusion, it is shown that the use of desirability function analysis can effectively be used to identify the optimum driving speed at which CO, HC, and CO2 emissions are minimized simultaneously for the given roads.
description: Ethiopian Journal of Science and Sustainable Development, Vol 11 No 1 (2024): EJSSD
Turbulent cross-field transport of non-thermal electrons in coronal loops: theory and observations
Creators: name: Bian, N.
name: Kontar, E.
name: MacKinnon, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A fundamental problem in astrophysics is the interaction between magnetic turbulence and charged particles. It is now possible to use \emph{Ramaty High Energy Solar Spectroscopic Imager (RHESSI)} observations of hard X-rays (HXR) emitted by electrons to identify the presence of turbulence and to estimate the magnitude of the magnetic field line diffusion coefficient at least in dense coronal flaring loops.} {We discuss the various possible regimes of cross-field transport of non-thermal electrons resulting from broadband magnetic turbulence in coronal loops. The importance of the Kubo number $K$ as a governing parameter is emphasized and results applicable in both the large and small Kubo number limits are collected.} {Generic models, based on concepts and insights developed in the statistical theory of transport, are applied to the coronal loops and to the interpretation of hard X-ray imaging data in solar flares. The role of trapping effects, which become important in the non-linear regime of transport, is taken into account in the interpretation of the data.} For this flaring solar loop, we constrain the ranges of parallel and perpendicular correlation lengths of turbulent magnetic fields and possible Kubo numbers. We show that a substantial amount of magnetic fluctuations with energy $\sim 1%$ (or more) of the background field can be inferred from the measurements of the magnetic diffusion coefficient inside thick-target coronal loops.
Flores Militello, V. (2019): tali dignus amico. Die Darstellung des patronus-cliens-Verhältnisses bei Horaz, Martial und Juvenal
Creators: name: Ullrich, Heiko
Publisher: name: Forum Classicum
Year: 2020

description: Redaktion zu: Flores Militello, V. (2019): tali dignus amico. Die Darstellung des patronus-cliens-Verhältnisses bei Horaz, Martial und Juvenal, Tübingen, Narr, 366 S. (ISBN 978-3-8233-8296-6)
description: Forum Classicum, Nr. 3 (2020): Forum Classicum
Job protection renders minimum wages less harmful
Creators: name: Schöb, Ronnie
name: Thum, Marcel
Publisher: name: Freie Universität Berlin
Year: 2011
Subjects: subject: Minimum wages
subject: unemployment
subject: hidden information
subject: labour market regulation
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie

description: Individual labour productivities are often unobservable for firms when hiring new workers. Job protection may prevent firms ex post from using information about labour productivities. We show that a binding minimum wage introduced in the presence of job protection will lead to lower unemployment levels than predicted by the standard labour market model with heterogeneous labour and full information.
title: How to harvest in a pandemic?
title: The German media coverage of migrant workers and harvesting in the context of the Covid-19 crisis in 2020
titleType: Subtitle
Creators: name: Küppers, Carolin
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: covid-19
subject: pandemic
subject: food inequalities
subject: migrant harvest workers
subject: farmworkers
subject: agriculture
subject: food production
subject: exploitative working conditions
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::325 Internationale Migration, Kolonisation
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::303 Gesellschaftliche Prozesse

description: The COVID-19 pandemic has widely been discussed as a crisis that impacts daily life on a global scale, including food security, global supply chains, consumer behaviour and nutrition. In this crisis, providing food became an even more essential service, agricultural work became an essential activity, and with this, farm workers became so-called essential workers. In Germany, this topic was broadly taken up by local and national newspapers. Due to immense media interest during the first lockdown, the working conditions in the food sector and especially the marginalized status of farmworkers were rendered visible to a broader public. This paper analyses the discourses and how food production in times of the pandemic affects pre-existing workers‘ inequalities and lack of workers’ rights, revealing migrant workers as one of the most vulnerable groups in the German food system. It concludes by demonstrating that the mechanisms of Covid-19, which have been exacerbating existing inequalities in the food sector during the pandemic, are part of a structural socio-economic and socio-political crisis that must be regarded in the context of global capitalism and intersectional inequalities.
title: Low-wage jobs
title: stepping stone or poverty trap?
titleType: Subtitle
Creators: name: Knabe, Andreas
name: Plum, Alexander
Publisher: name: Freie Universität Berlin
Year: 2010
Subjects: subject: low pay dynamics
subject: unemployment dynamics
subject: dynamic random effects models
subject: state dependence
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie

description: We examine whether low-paid jobs have an effect on the occupational advancement probability of unemployed persons to obtain better-paid jobs in the future (stepping-stone effect). We make use of data from the German Socio- Economic Panel (SOEP) and apply a dynamic random-effects probit model. Our results suggest that low-wage jobs can act as stepping stones to better-paid work. The improvement of the chance to obtain a high-wage job by accepting low-paid work is particularly large for less-skilled persons and for individuals with longer unemployment experiences. Low-paid work is less beneficial if the job is also associated with a low social status.
title: John Locke: Two Treatises of Government: Commentary
Creators: name: Schmidt, Alexander
name: Sonderforschungsbereich Transregio 294 "Strukturwandel Des Eigentums"
Publisher: name: Friedrich-Schiller-Universität Jena
Year: 2022
Subjects: subject: Natural law
subject: Labour
subject: Property
subject: 100

description: Neue Bibliothek des Eigentums
Parental perception of generalization in preschool children with special needs
Creators: name: Marshman, Mary Ellen
Publisher: name: University of Calgary
Year: 1986
Subjects: subject: LB 1117 M35 1987
subject: Special education (Preschool)
subject: Reasoning (child psychology)
subject: Learning disabled children
subject: Parents - Attitudes

description: Bibliography: p. 117-124.
Against rigid rules - Keynes's economic theory
Creators: name: Muchlinski, Elke
Publisher: name: Freie Universität Berlin
Year: 2003
Subjects: subject: History of economic thought since 1925
subject: Methodology
subject: Central Banking
subject: Inernational monetary arrangements and instititions
subject: 300 Sozialwissenschaften::330 Wirtschaft::337 Weltwirtschaft

description: This paper provides textual evidence of Keynes's position on monetary policy and shaping international monetary relations. One result of my contribution is that the famous dichotomy "rules versus discretion" is of no relevance to his economic theory, because he used the term "rules" not in the meaning of a formal brilliantly designed notion.He definitely made a distinction between non-rigidly-fixed-rules and discretion. I give an explanation why his economic theory is not compatible with principles of constructivism, empiricism and ontological realism by referring to a key term of his economic writings, i.e., discretionary decision.
KUNXO'JA SHE'RLARIDA MAISHIY BUYUMLARGA OID SO'ZLAR
Creators: name: Kadirniazova, Biybijamal
Publisher: name: Zenodo
Year: 2023

description: Maqolada qoraqalpoq mumtoz shoiri Kunxo'ja asarlaridagi maishiy buyumlarga oid so'zlar o'rganilgan.
Electrical manipulation of Majorana fermions in an interdigitated superconductor-ferromagnet device
Creators: name: Lee, Shu-Ping
name: Alicea, Jason
name: Refael, Gil
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that a topological phase supporting Majorana fermions can form in a 2D electron gas (2DEG) adjacent to an interdigitated superconductor-ferromagnet structure. An advantage of this setup is that the 2DEG can induce the required Zeeman splitting and superconductivity from a single interface, allowing one to utilize a wide class of 2DEGs including the surface states of bulk InAs. We demonstrate that the interdigitated device supports a robust topological phase when the finger spacing lambda is smaller than half of the Fermi wavelength lambda_F. In this regime, the electrons effectively see a "smeared" Zeeman splitting and pairing field despite the interdigitation. The topological phase survives even in the opposite limit lambda>lambda_F/2, though with a reduced bulk gap. We describe how to electrically generate a vortex in this setup to trap a Majorana mode, and predict an anomalous Fraunhofer pattern that provides a sharp signature of chiral Majorana edge states.
description: 5 pages, 6 figures
Electric Dipole Moments of Light Nuclei From Chiral Effective Field Theory
Creators: name: de Vries, J.
name: Higa, R.
name: Liu, C. -P.
name: Mereghetti, E.
name: Stetcu, I.
name: Timmermans, R. G. E.
name: van Kolck, U.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We set up the framework for the calculation of electric dipole moments (EDMs) of light nuclei using the systematic expansion provided by chiral effective field theory (EFT). We take into account parity (P) and time-reversal (T) violation which, at the quark-gluon level, originates from the QCD vacuum angle and dimension-six operators capturing physics beyond the Standard Model. We argue that EDMs of light nuclei can be expressed in terms of six low-energy constants that appear in the P- and T-violating nuclear potential and electric current. As examples, we calculate the EDMs of the deuteron, the triton, and 3He in leading order in the EFT expansion.
Desarrollo Extractivo y Sustentabilidad Socioambiental
Creators: name: Damonte, Gerardo
Publisher: name: Freie Universität Berlin
Year: 2017
Subjects: subject: Desarrollo
subject: Extractivo
subject: Sustentabilidad
subject: Socioambiental
subject: Andes
subject: Desigualdedes
subject: Sociales
subject: 300 Sozialwissenschaften

description: El presente curso analiza desde un enfoque social las características, transformaciones y retos a la sostenibilidad que nos deja la culminación del último ciclo de expansión extractiva minera en la región andina. Para ello se hace un recorrido académico por los conceptos que explican las características singulares de los distintos tipos de desarrollos extractivos y su naturaleza cíclica para luego explorar la manera en que la minería principalmente a gran escala se ha desplegado en ámbitos regionales, nacionales y locales creando interdependencias globales desde donde podemos analizar la producción y reproducción de desigualdades socio-ecológicas. Finalmente, el curso analiza las transformaciones sociales e institucionales que el último ciclo extractivo ha dejado.
Functional connectivity between prefrontal cortex and subgenual cingulate predicts antidepressant effects of ketamine
Creators: name: Gärtner, Matti
name: Aust, Sabine
name: Bajbouj, Malek
name: Fan, Yan
name: Wingenfeld, Katja
name: Otte, Christian
name: Heuser-Collier, Isabella
name: Böker, Heinz
name: Hättenschwiler, Josef
name: Seifritz, Erich
name: Grimm, Simone
name: Scheidegger, Milan
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: Functional connectivity
subject: Ketamine
subject: Major depression
subject: fMRI
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Converging evidence suggests that a single sub-anesthetic dose of ketamine can produce strong and rapid antidepressant effects in patients that do not respond to standard treatment. Despite a considerable amount of research investigating ketamine's mechanisms of action, the exact neuronal targets conveying the antidepressant effects have not been identified yet. Preclinical studies suggest that molecular changes induced by ketamine bring forward large-scale network reconfigurations that might relate to ketamine's antidepressant properties. In this prospective two-site study we measured resting state fMRI in 24 depressed patients prior to, and 24 h after a single sub-anesthetic dose of ketamine. We analyzed functional connectivity (FC) at baseline and after ketamine and focused our analysis on baseline FC and FC changes directly linked to symptom reduction in order to identify neuronal targets that predict individual clinical responses to ketamine. Our results show that FC increases after ketamine between right lateral prefrontal cortex (PFC) and subgenual anterior cingulate cortex (sgACC) are positively linked to treatment response. Furthermore, low baseline FC between these regions predicts treatment outcome. We conclude that PFC-sgACC connectivity may represent a promising biomarker with both predictive and explanatory power.
Gas-rich mergers and feedback are ubiqitous amongst starbursting radio galaxies, as revealed by JVLA, IRAM PdBI and Herschel
Creators: name: Ivison, R. J.
name: Smail, Ian
name: Amblard, A.
name: Arumugam, V.
name: De Breuck, C.
name: Emonts, B. H. C.
name: Feain, I.
name: Greve, T. R.
name: Haas, M.
name: Ibar, E.
name: Jarvis, M. J.
name: Kovaks, A.
name: Lehnert, M. D.
name: Nesvadba, N. P. H.
name: Rottgering, H. J. A.
name: Seymour, N.
name: Wylezalek, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report new, sensitive observations of two z ~ 3-3.5 FIR-luminous radio galaxies, 6C1909+72 and B3J2330+3927, in 12CO J=1-0 with the Karl Jansky VLA and at 100-500um using Herschel, alongside new and archival 12CO J=4-3 observations from IRAM PdBI. We introduce a new colour-colour diagnostic plot to constrain the redshifts of several distant, dusty galaxies in our target fields. A bright SMG near 6C1909+72 likely shares the same node or filament as the signpost AGN, but it is not detected in CO despite ~20,000 km/s of velocity coverage. Also in the 6C1909+72 field, a large, red dust feature spanning ~500 kpc is aligned with the radio jet. We suggest several processes by which metal-rich material may have been transported, favouring a collimated outflow reminiscent of the jet-oriented metal enrichment seen in local cluster environments. Our interferometric imaging reveals a gas-rich companion to B3J2330+3927; indeed, all bar one of the eight z >~ 2 radio galaxies (or companions) detected in CO provide some evidence that starburst activity in radio-loud AGN at high redshift is driven by the interaction of two or more gas-rich systems in which a significant mass of stars has already formed, rather than via steady accretion of cold gas from the cosmic web. We find that the CO Tb ratios in radio-loud AGN host galaxies are significantly higher than those seen in similarly intense starbursts where AGN activity is less pronounced. Our most extreme example, where L'(CO4-3)/L'(CO1-0) > 2.7, provides evidence that significant energy is being deposited rapidly into the molecular gas via X-rays and/or mechanical (`quasar-mode') feedback from the AGN, leading to a high degree of turbulence globally and a low optical depth in 12CO - feedback that may lead to the cessation of star formation on a timescale commensurate with that of the jet activity,
description: 12 pages, 6 colour figures; accepted for publication in MNRAS
Production of antibiotics by immobilized cell bioreactors
Creators: name: Deo, Yashwant M.
Publisher: name: University of Calgary
Year: 1982
Subjects: subject: QD 377 P4 D44 1985
subject: Penicillium urticae
subject: Penicillium chrysogenum
subject: Antibiotics - Synthesis
subject: Immobilized cells
subject: Penicillin

description: Bibliography: p. 236-249.
Kritische Studien zu den Ausgrabungen unter der Peterskirche in Rom
Creators: name: Gerkan, Armin Von
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 22 Nr. 1/2 (1953): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
An Alternative Yukawa Unified SUSY Scenario
Creators: name: Gainer, James S.
name: Huo, Ran
name: Wagner, Carlos E. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Supersymmetric SO(10) Grand Unified Theories with Yukawa unification represent an appealing possibility for physics beyond the Standard Model. However Yukawa unification is made difficult by large threshold corrections to the bottom mass. Generally one is led to consider models where the sfermion masses are large in order to suppress these corrections. Here we present another possibility, in which the top and bottom GUT scale Yukawa couplings are equal to a component of the charged lepton Yukawa matrix at the GUT scale in a basis where this matrix is not diagonal. Physically, this weak eigenstate Yukawa unification scenario corresponds to the case where the charged leptons that are in the 16 of SO(10) containing the top and bottom quarks mix with their counterparts in another SO(10) multiplet. Diagonalizing the resulting Yukawa matrix introduces mixings in the neutrino sector. Specifically we find that for a large region of parameter space with relatively light sparticles, and which has not been ruled out by current LHC or other data, the mixing induced in the neutrino sector is such that $sin^2 2Θ_{23} \approx 1$, in agreement with data. The phenomenological implications are analyzed in some detail.
description: 32 pages, 22 Figures
Tafeln 1-12
Creators: name: Redaktion, Die
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 22 Nr. 1/2 (1953): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Turbulence model of the cosmic structure
Creators: name: Gaite, Jose
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 85A40 (Primary) 76F55, 60H15 (Secondary)

description: The Kolmogorov approach to turbulence is applied to the Burgers turbulence in the stochastic adhesion model of large-scale structure formation. As the perturbative approach to this model is unreliable, here is proposed a new, non-perturbative approach, based on a suitable formulation of Kolmogorov's scaling laws. This approach suggests that the power-law exponent of the matter density two-point correlation function is in the range 1--1.33, but it also suggests that the adhesion model neglects important aspects of the gravitational dynamics.
description: 8 pages