cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Including same-sex families in early childhood settings in Australia: perspectives of parents of Chinese ancestry
Creators: name: Liang, Xinyun (Meg)
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Early childhood (EC) practitioners may continue to feel uncomfortable about explicitly including same-sex families in their program as little is known about the preparedness of parents of young children to support them in EC settings. A comprehensive review of relevant literature further indicates that empirical research on perspectives of ethnically and linguistically diverse families attending EC centres in Australia is absent. This study sets a precedent in exploring the input from parents of Chinese ancestry about inclusive EC education. A total of 54 Chinese parents (43 mothers and 11 fathers) of children aged eight years and under with experiences in EC settings participated in an online survey, and five of these (four mothers and one father) engaged in follow-up interviews to probe issues in-depth. Analysis of both quantitative and qualitative data revealed three key results about ethnic Chinese parents' beliefs and attitudes: 1) overall acceptance of lesbian and gay parents primarily varied by personal contact and public exposure to sexual minorities, 2) there was predominant resistance and reluctance toward supporting explicit inclusive practices for same-sex families in EC settings, and 3) prevalent beliefs of same-sex families related to discussion being inappropriate and irrelevant to children in early childhood. As the various cultural backgrounds of the Australian population may contribute to the diverse perspectives about sexual minorities, findings from this study assist EC practitioners, policymakers, and researchers to hear the voices of ethnic Chinese parents and in turn support the better preparation and implementation of inclusive practices for same-sex families in EC settings in this country.
Models of Accreting Gas Giant Protoplanets in Protostellar Disks
Creators: name: Papaloizou, John C. B.
name: Nelson, Richard P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We consider models of gas giant planets forming in protoplanetary disks consisting of solid cores with gaseous envelopes in contact with their critical Hill spheres while accreting gas from the surrounding disk.We suppose the luminosity derives from gas accretion alone.We label such models as type A and follow their evolution which may occur on a time scale similar to the protostellar disk lifetime until rapid gas accretion. We consider another set of models, we label type B, with a free surface, powered by gravitational contraction, while accreting through a disk.We find these models rapidly attain a radius
description: Accepted for publication in Astronomy and Astrophysics
title: Geschlechterbezogene Verfolgung und ihre Beurteilung in Asylverfahren. Die Umsetzung von UNHCR- und EU-Richtlinien am Beispiel von Schweden
Creators: name: Schittenhelm, Karin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Asyl
subject: Flucht
subject: Flüchtlingsschutz
subject: Gender
subject: Geschlechtsspezifische Verfolgung
subject: LGBTIQ
subject: Schweden
subject: ddc:320

description: Der Beitrag fragt nach dem Umgang mit geschlechterbezogener Verfolgung in Asylverfahren. Die viel diskutierte Frage, inwieweit Lücken der Schutzgewährung durch neue rechtliche Regelungen oder eine gendersensible Umsetzung geltender Bestimmungen zu vermeiden sind, greift er mit einer sozialwissenschaftlichen Analyse auf. Entscheidend ist, wie Rechtsabkommen und Richtlinien, die geschlechterbezogene Verfolgung betreffen, in Asylbehörden zur Anwendung kommen. Mit einer Fallstudie analysiert der Beitrag die Asylbehörde in Schweden, wo bereits früh die UNHCR-Richtlinien zu geschlechterbezogener Verfolgung in die nationale Gesetzgebung überführt wurden. Zudem ist die Behörde dabei, EU-Richtlinien des Flüchtlingsschutzes ‚gendersensibel‘ umzusetzen. Auf der Basis von Dokumenten und qualitativen Interviews wird diskutiert, welche Schritte zur Berücksichtigung von Gender/LGBTI zur Anwendung kommen und wie versucht wird, den Einfluss fragwürdiger Vorstellungen über Schutzsuchende, ihre Herkunftsländer oder ihre Lebensführung zu vermeiden.
Optimal Control of Droplets on a Solid Surface using Distributed Contact Angles
Creators: name: Bonart, Henning
name: Kahle, Christian
name: Repke, Jens-Uwe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Controlling the shape and position of moving and pinned droplets on a solid surface is an important feature often found in microfluidic applications. However, automating them, e.g., for high-throughput applications, does rarely involve model-based optimal control strategies. In this work, we demonstrate the optimal control of both the shape and position of a droplet sliding on an inclined surface. This basic test case is a fundamental building block in plenty of microfluidic designs. The static contact angle between the solid surface, the surrounding gas, and the liquid droplet serves as the control variable. By using several control patches, e.g., like done in electrowetting, the contact angles are allowed to vary in space and time. In computer experiments, we are able to calculate mathematically optimal contact angle distributions using gradient-based optimization. The dynamics of the droplet are described by the Cahn-Hilliard-Navier-Stokes equations. We anticipate our demonstration to be the starting point for more sophisticated optimal design and control concepts.
Promoting Fertilizer Use in Ethiopia: The Implications of Improving Grain Market Performance, Input Market Efficiency, and Farm Management
Creators: name: Demeke, Mulat
name: Said, Ali
name: Jayne, Thomas S.
name: Demeke, Mulat
name: Said, Ali
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 1997
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Ethiopia
subject: fertilizer
subject: grain markets

description: This report assesses how the recent deregulation of fertilizer prices will affect the profitability of fertilizer use on various crops throughout Ethiopia. The report also identifies other policy measures that can increase the cost-effective use of fertilizer to promote productivity growth throughout the food system.
Estradiol-induced changes in the production and survival of granule neurons born in the dentate gyrus of adult rodents
Creators: name: Ormerod, Brandi Kirshane
Publisher: name: University of British Columbia
Year: 2009

description: Controlling neurogenesis constitutive to the hippocampal dentate gyrus of adult mammals could improve strategies geared toward replacing neurons lost in the diseased or injured human CNS. This thesis resolves and expands upon conflicting reports about estradiol's influence over neurogenesis (progenitor proliferation and daughter cell differentiation and survival) in the adult rodent dentate gyrus. Chapter 2 showed that reproductive status regulates neurogenesis in the dentate gyri of adult laboratory-reared female meadow voles. Specifically, reproductively inactive (low estradiol) females had more dividing cells than reproductively active (high estradiol) females or females exposed to estradiol for 48 h. However, females exposed to estradiol for 4 h had more dividing cells than reproductively inactive females, suggesting that estradiol dynamically regulates cell proliferation. Because the ratio of new cells surviving 5 weeks versus 2 h was higher in the dentate gyri of reproductively active versus inactive females, estradiol appeared to enhance the survival of young cells. Chapters 3 and 4 confirmed that estradiol dynamically regulates dentate cell proliferation robustly across rodent species. Cell proliferation in the dentate gyri of female rats (Chapter 3) and meadow voles (Chapter 4) increased 4 h after but decreased 48 h after estradiol- versus vehicle-treatment. In part, estradiol suppressed proliferation by stimulating adrenal activity because adrenalectomy eliminated the suppression in adult female rats. Consistent with the effects reported in other species, NMDAr activation decreased and NMDAr inactivation increased proliferation in the dentate gyri of adult female voles but estradiol did not stimulate NMDArs to influence cell proliferation. Chapter 5 showed that estradiol potently enhances young granule neuron survival and that enhanced survival is related to improved hippocampus-dependent memory (but not learning). Specifically, estradiol doubled the number of 16-day old neurons in the dentate gyri of adult male meadow voles when administered over Days 6-10 after the neurons are born. Estradiol treated voles (Days 6-10), exhibited similar hormone-free performance Morris water maze training trials but outperformed vehicle-treated voles on a probe trial. Chapter 6 discusses how estradiol-induced changes in components of neurogenesis may influence normal hippocampus function and discusses how the findings of this thesis may relate to neuronal replacement strategies.
title: What matters? – Natur, Technologie und Geschlecht im Diskurs der Präimplantationsdiagnostik
Creators: name: Rödel, Malaika
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Diskursanalyse
subject: Präimplantationsdiagnostik
subject: Rekonfiguration von Geschlechtergrenzen
subject: Reproduktion
subject: Reproduktionstechnologien
subject: Science & Technology Studies
subject: Technologie
subject: ddc:300

description: Seit der Einführung der In-vitro-Fertilisation in den 1970er-Jahren sind im Feld der modernen Reproduktionsmedizin eine Reihe weiterer Verfahren entstanden, die die Vorstellungen von Zeugung und Elternschaft verändern. Leihmutterschaft, Präimplantationsdiagnostik, Eizell- und Samenspende lösen die Verbindung von Sexualität und Reproduktion und bieten ein Beispiel für die These der zunehmenden Auflösung von Körper- und Geschlechtergrenzen. Der vorliegende Beitrag leuchtet am Beispiel der Präimplantationsdiagnostik (PID) aus, wie Geschlecht und die Grenze von Natur und Technologie im Zuge dieser Entwicklung neu verhandelt werden. Anhand der Ergebnisse einer Analyse des Diskurses um die PID in Deutschland wird aufgezeigt, wie sich die PID von einer selektiven und mehrheitlich abgelehnten Diagnostik zu einer helfenden Hand für Paare mit Kinderwunsch wandelt und wie diese diskursiven Verschiebungen mit Rückgriff auf die Science and Technology Studies als eine „strategische Naturalisierung“ (Thompson) und „Reinigungsarbeit“ (Latour) im Diskurs verstanden werden können.
RE-MIMO: Recurrent and Permutation Equivariant Neural MIMO Detection
Creators: name: Pratik, Kumar
name: Rao, Bhaskar D.
name: Welling, Max
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we present a novel neural network for MIMO symbol detection. It is motivated by several important considerations in wireless communication systems; permutation equivariance and a variable number of users. The neural detector learns an iterative decoding algorithm that is implemented as a stack of iterative units. Each iterative unit is a neural computation module comprising of 3 sub-modules: the likelihood module, the encoder module, and the predictor module. The likelihood module injects information about the generative (forward) process into the neural network. The encoder-predictor modules together update the state vector and symbol estimates. The encoder module updates the state vector and employs a transformer based attention network to handle the interactions among the users in a permutation equivariant manner. The predictor module refines the symbol estimates. The modular and permutation equivariant architecture allows for dealing with a varying number of users. The resulting neural detector architecture is unique and exhibits several desirable properties unseen in any of the previously proposed neural detectors. We compare its performance against existing methods and the results show the ability of our network to efficiently handle a variable number of transmitters with high accuracy.
description: copyright 2020 IEEE TSP. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
The Response of Ethiopian Grain Markets to Liberalization
Creators: name: Negassa, Asfaw
name: Jayne, Thomas S.
name: Negassa, Asfaw
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 1997
Subjects: subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: food policy
subject: Ethiopia
subject: grain markets

description: The objective of this paper is to determine how liberalization of Ethiopia’s grain marketing system in March 1990 has affected the level and volatility of wholesale prices and price spreads between major regional cereal markets. The paper also identifies issues and problems needing attention to guide future policy decisions with the aim of reducing costs in the food system and thereby promoting the welfare of grain producers and consumers in Ethiopia.
Noise enhanced performance of ratchet cellular automata
Creators: name: Babic, Dusan
name: Bechinger, Clemens
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present the first experimental realization of a ratchet cellular automaton (RCA) which has been recently suggested as an alternative approach for performing logical operations with interacting (quasi) particles. Our study was performed with interacting colloidal particles which serve as a model system for other dissipative systems i.e. magnetic vortices on a superconductor or ions in dissipative optical arrays. We demonstrate that noise can enhance the efficiency of information transport in RCA and consequently enables their optimal operation at finite temperatures.
description: accepted for publication at Phys. Rew. Lett
Η διαφθορά στη δημόσια υγεία (Corruption in public health)
Creators: name: Geropoulos, Nikolaos
Publisher: name: figshare
Year: 2020
Subjects: subject: 180119 Law and Society
subject: FOS: Law
subject: 180110 Criminal Law and Procedure
subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: Το φαινόμενο της διαφθοράς στη δημόσια υγεία, ως παγκόσμιο και διαχρονικό είναι ιδιαιτέρως ανησυχητικό για όλες τις χώρες καθόσον αποτελεί παράγοντα αποσταθεροποίησης των συστημάτων υγείας. Με δεδομένο ότι τα χαμηλότερα εισοδηματικά στρώματα εξαρτώνται περισσότερο από τις δημόσιες δομές υγείας και οι οποίες εξαιτίας της διαφθοράς γίνονται ακριβότερες, το πρόβλημα γίνεται ακόμα πιο κρίσιμο για τις χώρες, στις οποίες οι δημόσιοι πόροι είναι ήδη περιορισμένοι, όπως στην Ελλάδα.Η διαφθορά στον τομέα της δημόσιας υγειονομικής περίθαλψης αποτελεί έναν από τρεις πυλώνες που διαβρώνουν το σύστημα υγείας στη χώρα μας. Μαζί με τους άλλους δύο πυλώνες, τη σπατάλη και την παραοικονομία, έχουν δημιουργήσει ένα τόσο νοσηρό κλίμα στα δημόσια νοσοκομεία μας, το οποίο έχει κλονίσει την εμπιστοσύνη, όχι μόνο των ασθενών ως προς την αξιόπιστη εκπλήρωση της αποστολής του Κράτους, αλλά και του επιχειρηματικού κόσμου που δραστηριοποιείται στο χώρο της Υγείας και ανήμπορος παρατηρεί να απομυζάται κάθε υγιής οικονομική του δραστηριότητα. Η αναζήτηση των αιτιών και των δυσλειτουργιών του υγειονομικού συστήματος, που εκτρέφουν τη διαφθορά, η διαφώτιση των σκοτεινών πτυχών δράσης των διεφθαρμένων γιατρών, η αποτύπωση του οικονομικού και κοινωνικού αντίκτυπου εξαιτίας της διαφθοράς στη δημόσια υγεία, η αξιολόγηση των συνεπειών της στη γενική κατάσταση της υγείας του πληθυσμού και τέλος η διερεύνηση των πιθανών τρόπων ενεργείας για την αντιμετώπιση της μάστιγας αποτέλεσαν το κίνητρο που τελικά οδήγησε στη συγγραφή της παρούσας εργασίας.Η εργασία με τίτλο «Η Διαφθορά στη Δημόσια Υγεία» αν και καταστρώθηκε με την οπτική του ποινικού δικαίου, εντούτοις δεν εστιάζει μόνο στην ποινική και εγκληματολογική όψη του ζητήματος. Αντιθέτως, το προσεγγίζει ως ένα σύνθετο κοινωνικό, οικονομικό, ιδεολογικό και πολιτικό φαινόμενο εντός των ορίων που επιτρέπει ο τίτλος της και στο μέτρο που είναι αναγκαίο για να παρουσιαστεί η γενικότερη προβληματική του φαινομένου της διαφθοράς.Περαιτέρω, πάντα υπό την ανωτέρω οπτική και με αφετηρία την αναζήτηση του ορισμού για τη «Διαφθορά στη Δημόσια Υγεία», τη σκιαγράφηση των αιτιών και των συνεπειών της και την ανάλυση των μορφών με τις οποίες εμφανίζεται, η παρούσα εργασία επιχειρεί τη σύνθεση της εικόνας τόσο των προληπτικών όσο και των κατασταλτικών μέτρων που έχει υιοθετήσει η πολιτεία και λαμβάνοντας υπόψη τις ιδιαιτερότητες του φαινομένου στο χώρο της δημόσιας υγείας προτείνει συγκεκριμένους άξονες στρατηγικής για την αποτελεσματικότερη πάταξή του.
A microscopic derivation of the quantum mechanical formal scattering cross section
Creators: name: Dürr, D.
name: Goldstein, S.
name: Moser, T.
name: Zangh\`ı, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove that the empirical distribution of crossings of a "detector'' surface by scattered particles converges in appropriate limits to the scattering cross section computed by stationary scattering theory. Our result, which is based on Bohmian mechanics and the flux-across-surfaces theorem, is the first derivation of the cross section starting from first microscopic principles.
description: 28 pages, v2: Typos corrected, layout improved, v3: Typos corrected. Accepted for publication in Comm. Math. Phys
On adaptability and "intermediate phase" in randomly connected networks
Creators: name: Barre', J.
name: Bishop, A. R.
name: Lookman, T.
name: Saxena, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a simple model that enables us to analytically characterize a floppy to rigid transition and an associated self-adaptive intermediate phase in a random bond network. In this intermediate phase, the network adapts itself to lower the stress due to constraints. Our simulations verify this picture. We use these insights to identify applications of these ideas in computational problems such as vertex cover and K-SAT.
description: 4 pages, 5 figures
Meeting Food Aid and Price Stabilization Objectives through Local Grain Purchase: A Review of the 1996 Experience
Creators: name: Amha, Wolday
name: Stepanek, Julie
name: Jayne, Thomas S.
name: Negassa, Asfaw
name: Amha, Wolday
name: Stepanek, Julie
name: Jayne, Thomas S.
name: Negassa, Asfaw
Publisher: name: Unknown
Year: 1997
Subjects: subject: Food Security and Poverty
subject: food security
subject: food policy
subject: Ethiopia
subject: food aid

description: The objective of this paper is to identify factors that can improve the ability of future local purchase activities to achieve a range of national food policy objectives. This analysis reviews the design and implementation of 1996 local purchase activities in Ethiopia in relation to three key policy objectives: price stabilization for farmers; promoting the development of a competitive and low-cost food marketing system; and procuring food aid resources in a cost effective manner.
Regulation of glucose homeostasis by Dipeptidyl Peptidase IV : studies on counter-regulation and long-term inhibition as diabetes therapy
Creators: name: Pospisilik, John Andrew
Publisher: name: University of British Columbia
Year: 2009

description: The ubiquitous serine protease dipeptidyl peptidase IV (DP IV) plays a number of physiological roles including hormone inactivation and immune costimulation. Recent attention has been brought to the molecule because of its ability to cleave and inactivate the potent insulin secretagogues (incretins) glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1). Use of specific DP IV-inhibitors has been shown to protect the active form of these hormones in the circulation thus enhancing their effects at target tissues. In the following study we show first, that the counterregulatory hormone glucagon serves as a physiologically relevant substrate for DP IV. Also, using a model of obesity-related diabetes (fa/fa Zucker rat) and a combination of techniques (oral glucose tolerance testing, pancreas perfusion, immunohistochemistry, and euglycemic-hyperinsulinemic clamp), we show that long-term DP IV-inhibitor (P32/98) therapy ameliorates the type-2 diabetic syndrome through enhancement of both insulin sensitivity and P-cell function. Further, we reveal the applicability of long-term DP IV-inhibitor treatment towards type-1 diabetes. In a model of insulin insufficiency and post-traumatic islet plasticity (streptozotocin-induced diabetic rat), marked improvements in disease severity are shown, associated with enhancement of β-cell survival and islet neogenesis. An in vitro analysis of the anti-apoptotic potential of GIP and GLP-1 implicate the two hormones mechanistically in the in vivo findings. Also, in a model of the autoimmune progression of type-1 diabetes (the BioBreeding rat) we show both a delay and partial prevention of the disease as well as improved glucose homeostasis prior to disease onset, supporting our hypothesis of combined immunosuppression and incretin enhancement and establishing for the first time the potential for DP IV-inhibition in the treatment of type-1 diabetes. In addition to a review of the literature surrounding DP IV and glucose regulation, the findings of the present study are discussed in the context of glucose counterregulation, diabetes and autoimmunity. In summary, the work presented here identifies a novel regulatory mechanism for the effects of the counterregulatory hormone glucagon, demonstrates the benefits of long-term incretin enhancement as a therapy for type-2 diabetes, and establishes DP IV-inhibition as a unique therapeutic strategy in the treatment of type-1 diabetes.
The extended hard X-ray emission from the Vela Plerion
Creators: name: Mangano, V.
name: Massaro, E.
name: Bocchino, F.
name: Mineo, T.
name: Cusumano, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a broad band (3-200 keV) spectral analysis of BeppoSAX and XMM-Newton observations of the Vela plerion. The hard X-ray (> 15 keV) emission is found to be extended over a region of 12'-15' radius, corresponding to a size of about 1.0--1.3 pc for a source distance of 290 pc. A single power law does not give an acceptable fit while a broken power law or a log-parabolic law nicely fit the data. The former spectral model has the photon index Gamma_1 = 1.66 +/- 0.01 for energies lower than the break value equal to 12.5 keV and the index Gamma_2 = 2.01 +/- 0.05 up to about 200 keV. The total X-ray luminosity of the Vela plerionis L_X=5.5E+33 erg/s, which implies a conversion factor of the spin--down power of about 1.E-03.
description: 8 pages, 6 figures. Accepted for publication by Astronomy and Astrophysics
Defining a well-ordered Floquet basis by the average energy
Creators: name: Le, Cristian M.
name: Akashi, Ryosuke
name: Tsuneyuki, Shinji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: At the moment, the most efficient method to compute the state of a periodically driven quantum system is using Floquet theory and the Floquet eigenbasis. The wide application of this basis set method is limited by: a lack of unique ordering of the Floquet eigenfunctions, an ambiguity in their definition at resonance, and an instability against infinitesimal perturbation at resonance. We address these problems by redefining the eigenbasis using a revised definition of the average energy as a quantum number. As a result of this redefinition, we also obtain a Floquet-Ritz variational principle, and justify the truncation of the Hilbert space.
Explaining the low-frequency shear elasticity of confined liquids
Creators: name: Zaccone, Alessio
name: Trachenko, Kostya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Experimental observations of unexpected shear rigidity in confined liquids, on very low frequency scales on the order of 0.01-0.1 Hz, call into question our basic understanding of the elasticity of liquids and have posed a challenge to theoretical models of the liquid state ever since. Here we combine the nonaffine theory of lattice dynamics valid for disordered condensed matter systems with the Frenkel theory of the liquid state. The emerging framework shows that applying confinement to a liquid can effectively suppress the low frequency modes that are responsible for nonaffine soft mechanical response, thus leading to an effective increase of the liquid shear rigidity. The new theory successfully predicts the scaling law $G'\sim L^{-3}$ for the low-frequency shear modulus of liquids as a function of the confinement length $L$, in agreement with experimental results, and provides the basis for a more general description of the elasticity of liquids across different time and length scales.
The resilient character of PDO/PGI products in dynamic food markets
Creators: name: Arfini, Filippo
name: Capelli, Maria Giacinta
name: Arfini, Filippo
name: Capelli, Maria Giacinta
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: PDO/PGI
subject: quality
subject: modern distribution
subject: cluster analysis
subject: marketing strategies
subject: development processes

description: The European and Italian food system is experiencing a change in the relationship with the consumer and with the distribution. In fact, customers are increasingly demanding, and are attracted, by products that have high quality content and a strong link with the territory. The brands with the price are the two factors affecting the strategic policies of the food producer firms. At the same time, the retail system has proven to be very sensitive to consumer demands by providing quality products at competitive prices and using their brand as an element of loyalty. In the European context, the Italian agri-food system has the higher number of products with the Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI) recognition. However, 90% of PDO products are represented by only 15 Designations. This figure shows how different types of products find a much diversified business position in relation to the firm’s characteristics, to the markets characteristics, to the reputation of the Designation and to the consortium strategies in relation to their commercialization. The objective of this research, based on observed data collected through the survey of QUALIVITA Association, is to provide an exhaustive picture of the economic characteristics of the Italian PDO, PGI Designations and define a typology of such Designation according different set of variables as production system, reputation level, role of the territory and distribution channel. The ultimate goal is to determine the strategic levers taken at the marketing stage and to identify which factors clarify their potentiality on the market. The methodology adopted for the quantitative analysis is based on non-hierarchical cluster analysis by the method of k-mean in order to identify clusters of similar designations which explain what variables act on the various strategies adopted and on the related development processes.
Horizontal shear instabilities in rotating stellar radiation zones: II. Effects of the full Coriolis acceleration
Creators: name: Park, Junho
name: Prat, Vincent
name: Mathis, Stéphane
name: Bugnet, Lisa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Stellar interiors are the seat of efficient transport of angular momentum all along their evolution. Understanding the dependence of the turbulent transport triggered by the shear instabilities due to the differential rotation in stellar radiation zones is mandatory. Indeed, it constitutes one of the cornerstones of the rotational transport and mixing theory which is implemented in stellar evolution codes to predict the rotational and chemical evolutions of stars. We investigate horizontal shear instabilities in stellar radiation zones by considering the full Coriolis acceleration with both the dimensionless horizontal component $\tilde{f}$ and the vertical component $f$. We performed a linear stability analysis for a horizontal shear flow with a hyperbolic tangent profile, both numerically and asymptotically using the WKBJ approximation. As in the traditional approximation, we identified the inflectional and inertial instabilities. The inflectional instability is destabilized as $\tilde{f}$ increases and its maximum growth rate increases significantly, while the thermal diffusivity stabilizes the inflectional instability similarly to the traditional case. The inertial instability is also strongly affected; for instance, the inertially unstable regime is extended in the non-diffusive limit as $0
description: Accepted in A&A
The Universe from Scratch
Creators: name: Loll, R.
name: Ambjorn, J.
name: Jurkiewicz, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A fascinating and deep question about nature is what one would see if one could probe space and time at smaller and smaller distances. Already the 19th-century founders of modern geometry contemplated the possibility that a piece of empty space that looks completely smooth and structureless to the naked eye might have an intricate microstructure at a much smaller scale. Our vastly increased understanding of the physical world acquired during the 20th century has made this a certainty. The laws of quantum theory tell us that looking at spacetime at ever smaller scales requires ever larger energies, and, according to Einstein's theory of general relativity, this will alter spacetime itself: it will acquire structure in the form of "curvature". What we still lack is a definitive Theory of Quantum Gravity to give us a detailed and quantitative description of the highly curved and quantum-fluctuating geometry of spacetime at this so-called Planck scale. - This article outlines a particular approach to constructing such a theory, that of Causal Dynamical Triangulations, and its achievements so far in deriving from first principles why spacetime is what it is, from the tiniest realms of the quantum to the large-scale structure of the universe.
description: 31 pages, 5 figures; review paper commissioned by Contemporary Physics and aimed at a wider physics audience; minor beautifications, coincides with journal version
title: Взаимодействие солей модифицированных гуминовых кислот с солями переходных металлов
Creators: name: Хилько, Светлана
name: Таперко, Галина
name: Рогатко, Марина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Определена способность солей меди, никеля, кобальта, кадмия и марганца к образованию нерастворимых в воде комплексов с модифицированными гуматами натрия. Модификацию гуминовых кислот проводили методом твердофазного механохимического синтеза с полиэтиленгликолем или гидроперитом в вибрационном аппарате. Строение и физико-химические свойства их макромолекул изучены методами ИК-спектроскопии и кислотно-основного потенциометрического титрования. Показано, что модификация гидроперитом приводит к увеличению карбоксильных групп, а модификация полиэтиленгликолем приводит к внедрению этоксигрупп в структуру макромолекулы гуминовой кислоты. Обращается внимание на то, что для модифицированных образцов гуминовых кислот увеличивается концентрация солей металлов, участвующих в образовании комплексов.
Deformed classical-quantum mechanics transition
Creators: name: Cortes, Jose L.
name: Gamboa, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An approach to study a generalization of the classical-quantum transition for general systems is proposed. In order to develop the idea, a deformation of the ladder operators algebra is proposed that contains a realization of the quantum group $SU(2)_q$ as a particular case. In this deformation Planck's constant becomes an operator whose eigenvalues approach $\hbar $ for small values of $n$ (the eigenvalue of the number operator), and zero for large values of $n$ (the system is classicalized).
description: 20 pages, no figures
ЙЎЛ ҲАРАКАТИ ХАВФСИЗЛИГИ ХИЗМАТИ ВА УНИ ТАРТИБГА СОЛУВЧИ НОРМАТИВ-ҲУҚУҚИЙ ҲУЖЖАТЛАР ТАҲЛИЛИ
Creators: name: Исломов, Шароф
Publisher: name: Zenodo
Year: 2025

description: Йўл ҳаракати хавфсизлигини таъминлаш ички ишлар органлари фаолиятининг асосий йўналишларидан бири бўлиб, ушбу вазифани самарали ташкил этиш тизимда Давлат йўл ҳаракати хавфсизлиги хизмати зиммасига юклатилган.
Modified Gravity via Spontaneous Symmetry Breaking
Creators: name: Gripaios, B. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct effective field theories in which gravity is modified via spontaneous breaking of local Lorentz invariance. This is a gravitational analogue of the Higgs mechanism. These theories possess additional graviton modes and modified dispersion relations. They are manifestly well-behaved in the UV and free of discontinuities of the van Dam-Veltman-Zakharov type, ensuring compatibility with standard tests of gravity. They may have important phenomenological effects on large distance scales, offering an alternative to dark energy. For the case in which the symmetry is broken by a vector field with the wrong sign mass term, we identify four massless graviton modes (all with positive-definite norm for a suitable choice of a parameter) and show the absence of the discontinuity.
description: 5 pages; revised version
Circumventing the optical diffraction limit with customized speckles
Creators: name: Bender, Nicholas
name: Sun, Mengyuan
name: Yilmaz, Hasan
name: Bewersdorf, Joerg
name: Cao, Hui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Speckle patterns have been widely used in imaging techniques such as ghost imaging, dynamic speckle illumination microscopy, structured illumination microscopy, and photoacoustic fluctuation imaging. Recent advances in the ability to control the statistical properties of speckles has enabled the customization of speckle patterns for specific imaging applications. In this work, we design and create special speckle patterns for parallelized nonlinear pattern-illumination microscopy based on fluorescence photoswitching. We present a proof-of-principle experimental demonstration where we obtain a spatial resolution three times higher than the diffraction limit of the illumination optics in our setup. Furthermore, we show that tailored speckles vastly outperform standard speckles. Our work establishes that customized speckles are a potent tool in parallelized super-resolution microscopy.
MINŐSÉG A SERTÉSHÚSVERTIKUMBAN
Creators: name: Nabradi, Andras
name: Nabradi, Andras
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Food Security and Poverty
subject: Livestock Production/Industries
subject: minőség
subject: minőségköltség
subject: minőségi kategóriák
subject: gazdaságilag optimális minőség
subject: értéklánc
subject: quality
subject: quality expenditure
subject: quality categories
subject: economically optimal quality
subject: value chain

description: Sokan és sokszor hangoztatják a minőségi termékelőállítás fontosságát, a mi-nőség fokozását, de kevesebben térnek arra ki, hogy végül is mit célszerű fokozni, milyen minőséget indokolt előállítani, mert eltérő minőségkategóriák léteznek az értéklánc folyamatában. Más a megítélés a termelőnél, más a feldolgozónál és teljesen más lehet a forgalmazónál. A végső „minőségellenőr” végül is a fogyasz-tó. Kérdés csupán az, hogy a fogyasztói értékítélet mennyire jelenik meg az ér-téklánc korábbi szakaszainál, ki mit tehet, illetve tesz a minőség növelése érde-kében. Szinte feltáratlan mindezek mellett a minőség költségeinek kérdésköre, a gazdaságilag optimális minőség. A tanulmány problémafelvető a sertéshúsverti-kumban, de hasonló és részletesebb vizsgálatok szükségesek a többi állattenyész-tési ágazatban is. Indokolt az állati termékek minőségkategóriáit komplexen ke-zelni, mert csak így lehet az értéklánc folyamat egyes elemeinél a fogyasztói elvá-rásokat, és ezzel együtt a fizetőképes keresletet mind teljesebben kielégíteni. - The importance of quality product production and of improving quality can be heard often and from many quarters, however fewer specify what exactly should be improved and what level of production quality is appropriate, because differing quality categories exist within the value chain process. Opinions differ between producer and processor and may be completely different again when it comes to the distributor. The final “quality controller” is in the end the consumer. The question is simply the extent to which consumer value judgements appear at earlier stages of the value chain, and who can do or does do something in the interests of improving quality. At the same time, questions related to the costs of quality and to economically optimal quality remain virtually unexplored. This study raises issues within the pork verticum, but similar and more detailed investigations are also needed in the other animal breeding sectors. There is good reason to handle the quality categories of animal products in a complex manner, as this is the only way to more fully meet consumer expectations and thereby sol-vent demand within various elements of the value chain.
Dawn of Queer Triumphalism.pdf
Creators: name: Zakravsky, Katherina T.
Publisher: name: figshare
Year: 2020
Subjects: subject: 220306 Feminist Theory
subject: FOS: Philosophy, ethics and religion
subject: 190102 Art History
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190299 Film, Television and Digital Media not elsewhere classified

description: This is an analysis of the short career of queer artist Nora Kurzweil who curated a trio act, with two male queer performers, during a short career 2009-2012 with performances in Vienna, Austria, Germany and Turkey.The text has been published 2018.
FeynOnium: Using FeynCalc for automatic calculations in Nonrelativistic Effective Field Theories
Creators: name: Brambilla, Nora
name: Chung, Hee Sok
name: Shtabovenko, Vladyslav
name: Vairo, Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present new results on FeynOnium, an ongoing project to develop a general purpose software toolkit for semi-automatic symbolic calculations in nonrelativistic Effective Field Theories (EFTs). Building upon FeynCalc, an existing Mathematica package for symbolic evaluation of Feynman diagrams, we have created a powerful framework for automatizing calculations in nonrelativistic EFTs (NREFTs) at tree- and 1-loop level. This is achieved by exploiting the novel features of FeynCalc that support manipulations of Cartesian tensors, Pauli matrices and nonstandard loop integrals. Additional operations that are common in nonrelativistic EFT calculations are implemented in a dedicated add-on called FeynOnium. While our current focus is on EFTs for strong interactions of heavy quarks, extensions to other systems that admit a nonrelativistic EFT description are planned for the future. All our codes are open-source and publicly available. Furthermore, we provide several example calculations that demonstrate how FeynOnium can be employed to reproduce known results from the literature.
description: 61 pages, no figures, matches the version accepted in JHEP. To obtain the programs, see https://github.com/FeynCalc
Temperature and Frequency Dependence of Complex Conductance of Ultrathin YBa2Cu3O7-x Films: A Study of Vortex-Antivortex Pair Unbinding
Creators: name: Gasparov, V. A.
name: Tsydynzhapov, G.
name: Batov, I. E.
name: Li, Qi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the temperature dependencies of the complex sheet conductance of 1-3 unit cell (UC) thick YBa2Cu3O7-x films sandwiched between semiconducting Pr0.6Y0.4Ba2Cu3O7-x layers at high frequencies. Experiments have been carried out in a frequency range between: 2 - 30 MHz with one-spiral coil technique, 100 MHz - 1 GHz frequency range with a new technique using the spiral coil cavity and at 30 GHz by aid of a resonant cavity technique. The real and imaginary parts of the mutual-inductance between a coil and a film were measured and converted to complex conductivity by aid of the inversion procedure. We have found a quadratic temperature dependence of the kinetic inductance, L_k^-1(T), at low temperatures independent of frequency, with a break in slope at T^dc_BKT, the maximum of real part of conductance and a large shift of the break temperature and the maximum position to higher temperatures with increasing frequency. We obtain from these data the universal ratio T^dc_BKT/L_k^-1(T^dc_BKT) = 25, 25, and 17 nHK for 1-, 2- and 3UC films, respectively in close agreement with theoretical prediction of 12 nHK for vortex-antivortex unbinding transition. The activated temperature dependence of the vortex diffusion constant was observed and discussed in the framework of vortex-antivortex pair pinning. PACS numbers: 74.80.Dm, 74.25.Nf, 74.72.Bk, 74.76.Bz
description: PDF file, 10 pages, 6 figures, to be published in J. Low Temp. Phys.; Proc. of NATO ARW: VORTEX 2004
Η διαφθορά στη δημόσια υγεία
Creators: name: Geropoulos, Nikolaos
Publisher: name: figshare
Year: 2020
Subjects: subject: 180119 Law and Society
subject: FOS: Law
subject: 180110 Criminal Law and Procedure
subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: Το φαινόμενο της διαφθοράς στη δημόσια υγεία, ως παγκόσμιο και διαχρονικό είναι ιδιαιτέρως ανησυχητικό για όλες τις χώρες καθόσον αποτελεί παράγοντα αποσταθεροποίησης των συστημάτων υγείας. Με δεδομένο ότι τα χαμηλότερα εισοδηματικά στρώματα εξαρτώνται περισσότερο από τις δημόσιες δομές υγείας και οι οποίες εξαιτίας της διαφθοράς γίνονται ακριβότερες, το πρόβλημα γίνεται ακόμα πιο κρίσιμο για τις χώρες, στις οποίες οι δημόσιοι πόροι είναι ήδη περιορισμένοι, όπως στην Ελλάδα.Η διαφθορά στον τομέα της δημόσιας υγειονομικής περίθαλψης αποτελεί έναν από τρεις πυλώνες που διαβρώνουν το σύστημα υγείας στη χώρα μας. Μαζί με τους άλλους δύο πυλώνες, τη σπατάλη και την παραοικονομία, έχουν δημιουργήσει ένα τόσο νοσηρό κλίμα στα δημόσια νοσοκομεία μας, το οποίο έχει κλονίσει την εμπιστοσύνη, όχι μόνο των ασθενών ως προς την αξιόπιστη εκπλήρωση της αποστολής του Κράτους, αλλά και του επιχειρηματικού κόσμου που δραστηριοποιείται στο χώρο της Υγείας και ανήμπορος παρατηρεί να απομυζάται κάθε υγιής οικονομική του δραστηριότητα. Η αναζήτηση των αιτιών και των δυσλειτουργιών του υγειονομικού συστήματος, που εκτρέφουν τη διαφθορά, η διαφώτιση των σκοτεινών πτυχών δράσης των διεφθαρμένων γιατρών, η αποτύπωση του οικονομικού και κοινωνικού αντίκτυπου εξαιτίας της διαφθοράς στη δημόσια υγεία, η αξιολόγηση των συνεπειών της στη γενική κατάσταση της υγείας του πληθυσμού και τέλος η διερεύνηση των πιθανών τρόπων ενεργείας για την αντιμετώπιση της μάστιγας αποτέλεσαν το κίνητρο που τελικά οδήγησε στη συγγραφή της παρούσας εργασίας.Η εργασία με τίτλο «Η Διαφθορά στη Δημόσια Υγεία» αν και καταστρώθηκε με την οπτική του ποινικού δικαίου, εντούτοις δεν εστιάζει μόνο στην ποινική και εγκληματολογική όψη του ζητήματος. Αντιθέτως, το προσεγγίζει ως ένα σύνθετο κοινωνικό, οικονομικό, ιδεολογικό και πολιτικό φαινόμενο εντός των ορίων που επιτρέπει ο τίτλος της και στο μέτρο που είναι αναγκαίο για να παρουσιαστεί η γενικότερη προβληματική του φαινομένου της διαφθοράς.Περαιτέρω, πάντα υπό την ανωτέρω οπτική και με αφετηρία την αναζήτηση του ορισμού για τη «Διαφθορά στη Δημόσια Υγεία», τη σκιαγράφηση των αιτιών και των συνεπειών της και την ανάλυση των μορφών με τις οποίες εμφανίζεται, η παρούσα εργασία επιχειρεί τη σύνθεση της εικόνας τόσο των προληπτικών όσο και των κατασταλτικών μέτρων που έχει υιοθετήσει η πολιτεία και λαμβάνοντας υπόψη τις ιδιαιτερότητες του φαινομένου στο χώρο της δημόσιας υγείας προτείνει συγκεκριμένους άξονες στρατηγικής για την αποτελεσματικότερη πάταξή του.
CoSE: Compositional Stroke Embeddings
Creators: name: Aksan, Emre
name: Deselaers, Thomas
name: Tagliasacchi, Andrea
name: Hilliges, Otmar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We present a generative model for complex free-form structures such as stroke-based drawing tasks. While previous approaches rely on sequence-based models for drawings of basic objects or handwritten text, we propose a model that treats drawings as a collection of strokes that can be composed into complex structures such as diagrams (e.g., flow-charts). At the core of the approach lies a novel autoencoder that projects variable-length strokes into a latent space of fixed dimension. This representation space allows a relational model, operating in latent space, to better capture the relationship between strokes and to predict subsequent strokes. We demonstrate qualitatively and quantitatively that our proposed approach is able to model the appearance of individual strokes, as well as the compositional structure of larger diagram drawings. Our approach is suitable for interactive use cases such as auto-completing diagrams. We make code and models publicly available at https://eth-ait.github.io/cose.