cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impacts of Trade Liberalization in Canada's Supply Managed Dairy Industry
Creators: name: Biden, Scott
name: Ker, Alan P.
name: Biden, Scott
name: Ker, Alan P.
Publisher: name: Unknown
Year: 2019
Subjects: International Relations/Trade

description: Trade is an integral part of the Canadian economy. The main institutional drivers governing trade are bilateral and multilateral agreements outlining permissible trade distorting measures. Since its inception in 1972, Canada's supply management system has remained protected throughout trade negotiations. The system appears, by any economic measure, to be having an increasingly disproportional influence in recent trade negotiations. However, trade agreements serve not only to maximize social surplus, but also to maximize some measure of political welfare. Canada has recently negotiated three prominent trade agreements: the Canada-European Union Comprehensive Economic and Trade Agreement (CETA) came into effect in the latter part of 2017; the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) came into effect at the end of 2018; and the Canada-United States-Mexico Agreement (CUSMA) could come into effect as early as late 2019. Collectively, these agreements have guaranteed increased market access for fresh and processed dairy products. We build a spatial partial equilibrium model of the Canadian dairy industry consisting of three regions and ten commodities to assess the individual and cumulative effect of these trade agreements. We pay particular attention to the institutional drivers within today's dairy sector: milk protein concentrates; component pricing including Class 7; and differential demand growth. We find that the aggregate impacts are: (i) a 7.0% decrease in the marginal retail price; (ii) a 4.7% decrease in the blended producer price; and (iii) an overall increase in social welfare of 5.5%. Worth noting, the decrease in producer surplus varies from 3.1% in the western region to 6.3% in the eastern region. Our results may be relevant to future negotiations as well as the publicly promised compensation package for dairy producers.
Parameter estimation of Cambanis-type bivariate uniform distribution with Ranked Set Sampling
Creators: name: Koshti, Rohan D.
name: Kirtee K. Kamalja
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The concept of ranked set sampling (RSS) is applicable whenever ranking on a set of sampling units can be done easily using a judgment method or based on an auxiliary variable. In this paper, we consider a study variable Y correlated with the auxiliary variable X and use it to rank the sampling units. Further (X,Y) is assumed to have Cambanis-type bivariate uniform (CTBU) distribution. We obtain an unbiased estimator of a scale parameter associated with the study variable Y based on different RSS schemes. We perform the efficiency comparison of the proposed estimators numerically. We present the trends in the efficiency performance of estimators under various RSS schemes with respect to parameters through line and surface plots. Further, we develop a Matlab function to simulate data from CTBU distribution and present the performance of proposed estimators through a simulation study. The results developed are implemented to real-life data also.
Μουσεία τέχνης και εικονική πραγματικότητα: Πρακτικές και στρατηγικές των οργανισμών
Creators: name: Νίκα, Ραφαέλα Παντελή
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: μουσεία τέχνης
εικονική πραγματικότητα
πολιτιστική διαχείριση
art museums
virtual reality
cultural management

description: Η εποχή που διανύουμε οδηγεί στην ολοένα και μεγαλύτερη ένταξη των τεχνολογικών εφαρμογών σε όλους ανεξαρτήτως τους κλάδους, μεταξύ των οποίων εντάσσεται και ο πολιτισμός. Υπό το πρίσμα αυτής της λογικής, η παρούσα εργασία εξετάζει τη σχέση των μουσείων με την εικονική πραγματικότητα και συγκεκριμένα εστιάζει στις εφαρμογές αυτής της τεχνολογίας σε ελληνικά μουσεία τέχνης, θέτοντας στο επίκεντρο τις απόψεις, τις εμπειρίες και τις διαθέσεις των ίδιων των στελεχών από τους υπό εξέταση οργανισμούς. Για τη διερεύνηση αυτού του ζητήματος πραγματοποιήθηκε έρευνα με ημιδομημένες συνεντεύξεις σε επτά συμμετέχουσεςυπευθύνους μέσω της πλατφόρμας Zoom, οι οποίες στηρίχθηκαν κατά βάση σε οκτώ ερωτήσεις ανοιχτού τύπου. Από τα ευρήματα της έρευνας διαπιστώθηκε πως τα μουσεία τέχνης στην Ελλάδα δεν έχουν επαρκώς αξιοποιήσει την εικονική πραγματικότητα, γεγονός που οφείλεται σε μια σειρά παραγόντων, όπως το κόστος και η έλλειψη ανθρώπινου δυναμικού. Επίσης, φάνηκε ότι τα υπό εξέταση μουσεία ακολουθούν μια στοιχειώδη στρατηγική ή δρουν άνευ πλάνου έναντι των νέων τεχνολογιών, δε διαθέτουν εξειδικευμένο προσωπικό και βασίζονται στη συνεργασία με εξωτερικούς συνεργάτες προκειμένου να αξιοποιήσουν τέτοιες τεχνολόγιες. Τέλος, επιβεβαιώθηκε πως σχεδόν το σύνολο των μουσείων σκοπεύει να αξιοποιήσει την εικονική πραγματικότητα στο άμεσο μέλλον
description: The period of time we are going through leads to an increase in technological applications in all sectors, including the cultural one. From this point of view, this essay examines the relationship between museums and virtual reality, specifically the use of this technology in Greek art museums, focusing on the views, experiences and perceptions of museum professionals. For this purpose, seven semi-structured interviews were conducted via Zoom and consisted of eight open-ended questions. The results of this study show, firstly, that the art museums in Greece have not sufficiently utilized the VR, due to many factors, such as the high cost and the lack of human resources. Furthermore, the research points out that there is a lack of a specific strategy as regards to new technologies. In addition, the absence of specialized staff results in the need to resort to the common practice of cooperation with external collaborators in order to apply such technologies. Last but not least, it seems that almost all the participating museums plan to use the VR in the near future
Removal of dye and heavy metal ion using a novel synthetic polyethersulfone nanofiltration membrane modified by magnetic graphene oxide metformin hybrid
Creators: name: Alizadeh, Abdolhamid
name: GISYA ABDI
name: Sirus Zinadini
name: Golshan Moradi
Publisher: name: figshare
Year: 2021
Subjects: subject: Organic Chemistry
subject: FOS: Chemical sciences

description: In this research, active groups of biguanide were grafted to the surface of graphene oxide sheets through covalent functionalization and combined with magnetic nanoparticles to produce a magnetic graphene-based composite (MMGO). Then, the fabricated MMGO hybrid was introduced into the polyethersulfone (PES) polymer through phase inversion induced by immersion precipitation method. The prepared MMGO embedded PES membranes were examined for pure water flux permeability, salt rejection, antifouling, copper removal, and dye retention capability. The effect of MMGO hybrid on the cross-sectional morphology, hydrophilicity, and roughness of the PES membrane was investigated as well. Embedding MMGO hybrid was eventuated in a significant increase in the pure water flux because of changes in surface roughness and hydrophilicity of the membranes. Besides, the copper and dye removal capability of the prepared membranes remarkably raised due to the presence of hydrophilic functional groups on the surface of MMGO hybrid. The fabricated nanofiltration membrane with 0.5 wt % MMGO hybrid had the highest affinity for copper ions removal (92%). Dye rejection of the MMGO embedded PES membranes at different concentrations of MMGO hybrid was almost the same (about 99%) while the value of the bare PES membrane was 91%. Flux reduction of the MMGO embedded PES membranes was lower than that of the bare PES membrane during repeated filtration.
Lattice distortions, incommensurability, and stripes in the electric model for high-Tc cuprates
Creators: name: Yanagisawa, Takashi
name: Miyazaki, Mitake
name: Koikegami, Shigeru
name: Koike, Soh
name: Yamaji, Kunihiko
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Striped superconductivity with lattice distortions is investigated based on the three-band Hubbard model for high-Tc cuprates. A stable inhomogeneous striped state is determined in the low-temperature tetragonal (LTT) phase with lattice distortions using a quantum variational Monte Carlo method. The ground state has vertical or horizontal hole-rich arrays coexisting with incommensurate magnetism and superconductivity induced by several percent lattice distortions. The superconductivity order parameter oscillates according to the inhomogeneity in the antiferromagnetic background with its maxima in the hole-rich regions, and the superconductivity condensation energy is reduced as the doping rate decreases.
description: 5 pages, 5 figures
title: Petroleum activities in the Lofoten area: What is the (marine) scientists role in the decision making process?
Creators: name: Boland, Ragnhild
Publisher: name: ASC 2012 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.March 11 2011 the debate on whether to start extracting oil and gas in the Lofoten area, came to an end. One of the central questions raised in the debate was if it is possible to combine petroleum activity with justifiable management of other natural resources, especially with the fisheries. Scientists at the Norwegian Institute for Marine Research contributed with work that hopefully could give an answer to this question
Figure 7. Dissolution pattern for the flow rate 1 ml/h in horizontal (BH1) (top) and vertical (BV1) (bottom) configurations. Left – Grayscale image at the final time of the experiment, the red (green) line represents the interface between dissolved area and partially-dissolved area (partially dissolved and non-dissolved areas) as obtained from the segmentation. Blue rectangle locates the zoomed area. Right – Recolored zoomed images of dissolution at different time relative to the initial image.
Creators: name: Assohoun Wilfried Arnaud Ahoulou
Publisher: name: figshare
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 40403 Geophysical Fluid Dynamics
subject: Solid Earth Sciences
subject: 40603 Hydrogeology

description: Dissolution pattern for the flow rate 1 ml/h in horizontal and vertical configuration
Models of Short-Time Qubit Decoherence
Creators: name: Solenov, Dmitry
name: Privman, Vladimir
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compare approaches to evaluation of decoherence at low temperatures in two-state quantum systems weakly coupled to the environment. By analyzing an exactly solvable model, we demonstrate that a non-Markovian approximation scheme yields good quality estimates of the reduced density matrix for time scales appropriate for evaluation of quantum computing designs.
description: 15 pages, 3 figures
IMPACTS OF HYPOTHETICAL FRUIT AND VEGETABLE CONSUMPTION CHANGES IN NORTH AMERICA
Creators: name: O’Hara, Jeffrey K.
name: Narayanan, Badri G.
name: Mulik, Kranti
name: O’Hara, Jeffrey K.
name: Narayanan, Badri G.
name: Mulik, Kranti
Publisher: name: Unknown
Year: 2018
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: agricultural trade
subject: dietary guidelines
subject: food consumption

description: We utilize the Global Trade Analysis Project model to estimate the global fruit and vegetable (F&V) market impacts arising from increases in F&V demand and income levels. If F&V demand increased exclusively in the United States, we find that the market price impacts outside the U.S. would be most pronounced in Mexico. We also find that an increase in F&V demand in either the U.S. exclusively or throughout North America would lead to pronounced income increases in Mexico and equatorial countries. Changes in F&V consumption in these regions are modest, as higher incomes attenuate F&V price increases. We also find nominal impacts in countries outside of North America resulting from a North American consumption increase vis-a-vis an increase occurring exclusively in the United States.
Silica anchored colloidal suspension of magnetite nanorods
Creators: name: Ruparelia, Nidhi
name: Soni, Urveshkumar
name: Desai, Rucha P
name: Ray, Arbinda
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This study focuses on the interaction of colloidal silica nanoparticles with the magnetite (Fe3O4) magnetic fluids (MF), which eventually forms nanorod like structure. The aqueous magnetic fluid consists of magnetite nanoparticles having double layers of lauric acid surfactants. This surfactant provides stability towards short-range van der Waals attractive and steric repulsive forces, as well as long-range dipole-dipole interactive force. Whereas, in the colloidal silica, the sodium ions provide stability to the silica nanoparticles. The colloidal silica and magnetic fluid both were mixed in different proportions to understand the interaction between the silica and magnetite nanoparticles. Thus, the interaction present in the system is studied using FTIR, TGA, and magnetic field induced microscopy. The FTIR and TGA data reveal that silica interacts with the outer layer of lauric acid through the Si-O bond and eventually provides stability to the system. The length of the lauric acid sheath varies with the concentration of silica nanoparticles. The SEM images indicate nanorod formation, and its structure dimensions vary with the silica concentrations, which is also reflected in the magnetic field-induced structure formations. The structure observed using microscopy correlated with the interaction derived from FTIR and TGA data analysis. XRD data of iron oxide (magnetite) nanoparticles are present here again for completion.
SEGMENTATION OF FRESH FRUITS CONSUMERS BY PRODUCT AND STORE ATTRIBUTES AT KLANG VALLEY, MALAYSIA
Creators: name: Gindi, Abdullahi Auwal
name: Abdullah, Amin Mahir
name: Ismail, Mohd Mansor
name: Nawi, Nolila Mohd
name: Gindi, Abdullahi Auwal
name: Abdullah, Amin Mahir
name: Ismail, Mohd Mansor
name: Nawi, Nolila Mohd
Publisher: name: Unknown
Year: 2018
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: segmentation
subject: attributes
subject: consumers
subject: fresh fruits

description: Understanding consumer segment is important especially in marketing strategies. Segmentation of the consumers depend on many factors including socio demographic factors of the consumers, product line to be considered, types of retail formats used by the consumers, attributes of the product as well as that of retail formats among other factors. This study examined and segmented the fresh fruits consumers based on the product attributes and store attributes considered by the consumers in choosing the place for their fresh fruits purchases. Results of the study indicates the most important fresh fruits attributes and that of retail formats considered by the Klang valley fresh fruits consumers when purchasing the product. Also using statistical analysis technique with the data collected from the fresh fruits consumers; they were segmented into three different segments each with its peculiar characteristics different from the other. The result suggests that for effective marketing strategies, there is need to consider the needs of each member of segment in meeting their needs as well as capturing the targeted segment.
Programming Place : The Question of the Smart City
Creators: name: Scott, Alex
Publisher: name: The University of British Columbia
Year: 2019

description: The Internet of Things and the lure of smart cities are poised to revolutionize the urban areas of North America. Digital technology has introduced ubiquitous communication and influenced the organization of urban areas in North America, and together this has changed the ways in which people use urban public spaces. Now, the possibilities of the integration of digital technology into the physical infrastructure of the city has technology companies eager to partner with municipalities to realize the economic and managerial benefits of big data. The realities of the implementation of the smart city concept, however, has raised myriad concern around the role of private interests in public life with regards to privacy, ownership, control, and inequality. Many of these concerns play out in public spaces, as they are integral to the enactment of public life in cities while also increasingly funded, and therefore influenced, by private interests. What, then, are future programmatic and technological possibilities for urban public space that seize the opportunities while addressing the concerns? This project proposal first seeks to understand the historical and contemporary roles and functions of urban public space and real estate development, as well as big data. Then, it explores the influence of technology on the human understanding and organization of space to unpack the influence of the Internet of Things. Finally, a design project is proposed for the public space in Sidewalk Toronto’s Quayside development that seeks to address these phenomena through the thinking of the philosopher Hannah Arendt.
Real-time sextupole tuning for a long in-plane polarization at storage rings
Creators: name: Haciomeroglu, Selcuk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A long in-plane beam polarization can be a desired feature for spin measurement experiments in storage rings. The spin precession of the particles within a beam can be controlled by means of the frozen spin method and beam bunching via RF cavities, eventually yielding a polarization lifetime of 10--100 seconds. Previous studies have shown that it can be further improved by sextupoles, which correct the second order effects related to the chromaticity of the beam. However, sextupoles can require readjustment after slight changes in ring parameters. This work presents a real-time sextupole tuning method that relies on a feedback algorithm. It adjusts the sextupole strength during storage, targeting a zero average radial spin component. Satisfying this condition results in a longer polarization lifetime. Simulation studies show that roughly determined feedback coefficients in this method work effectively for a wide range of ring parameters, with practical field imperfections and measurement errors taken into account. Alternatively, this technique can be used to optimize sextupole strengths in a test run without intervening the measurement.
description: 9 pages, 14 figures
Evolution of Stokes V area asymmetry related to a quiet Sun cancelation observed with GRIS/IFU
Creators: name: Kaithakkal, Anjali. J.
name: Borrero, J. M.
name: Fischer, C. E.
name: Dominguez-Tagle, C.
name: Collados, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A quiet Sun magnetic flux cancelation event at the disk centre was recorded using the Integral Field Unit (IFU) mounted on the GREGOR Infrared Spectrograph (GRIS). GRIS sampled the event in the photospheric Si I 10827 Å spectral line. The cancelation is preceded by a significant rise in line core intensity and excitation temperature, which is inferred from Stokes inversions under local thermodynamic equilibrium (LTE). The opposite polarity features seem to undergo reconnection above the photosphere. We also found that the border pixels neighboring the polarity inversion line of one of the polarities exhibit a systematic variation of area asymmetry. Area asymmetry peaks right after the line core intensity enhancement and gradually declines thereafter. Analyzing Stokes profiles recorded from either side of the polarity inversion line could therefore potentially provide additional information on the reconnection process related to magnetic flux cancelation. Further analysis without assuming LTE will be required to fully characterize this event.
description: 8 pages, 9 figures, accepted for publication in A&A
Figure 6. Dissolution pattern for the flow rate 10 ml/h in horizontal (BH10) (top) and vertical (BV10) (bottom) configurations. Left – Grayscale image at breakthrough, the red line represents the interface between dissolved area and non-dissolved area as obtained from the segmentation. Blue rectangle locates the zoomed area. Right – Recolored zoomed images of dissolution at different times relative to the initial image.
Creators: name: Assohoun Wilfried Arnaud Ahoulou
Publisher: name: figshare
Year: 2020
Subjects: subject: 40403 Geophysical Fluid Dynamics
subject: FOS: Earth and related environmental sciences
subject: 40603 Hydrogeology
subject: Solid Earth Sciences

description: Dissolution pattern for the flow rate 10 ml/h in horizontal and vertical configurations
PRICE TRANSMISSION ANALYSIS FOR NICARAGUA RICE MARKET
Creators: name: Darbandi, Elham
name: Darbandi, Elham
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Price transmission
subject: Rice
subject: ARDL
subject: Nicaragua

description: Rice is the most important staple food for Nicaraguans. Analyzing price linkages among market levels is helpful for policy makers to evaluate the potential impacts of agricultural policy on producers and consumers, especially for a country such as Nicaragua which bases its economy largely on the agricultural sector. This paper analyzes pricing relationship between wholesale and retail levels of Nicaraguan rice market and tests for asymmetric price transmission. Rice and in general agricultural sector has an important role in Nicaragua economic. We used monthly prices for high quality rice data from January 2008 to January 2015 along with a model that is based on the Ward’s model framework. We estimate the model using the autoregressive distributed lag (ARDL) approach. To check the stability of the longrun coefficient, the cumulative sum of recursive residuals (CUSUM) is applied. Also to test the direction of causality, the Granger causality test is used to judge the causality results and different lags have been applied. The results indicate that there is a bilateral relation between wholesale and retail prices. Based on our results, there is significant evidence to support asymmetry between the wholesale and retail sector, which indicates market inefficiency and distortion between these two markets.
Projectile-shape dependence of impact craters in loose granular media
Creators: name: Newhall, K. A.
name: Durian, D. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report on the penetration of cylindrical projectiles dropped from rest into a dry, noncohesive granular medium. The cylinder length, diameter, density, and tip shape are all explicitly varied. For deep penetrations, as compared to the cylinder diameter, the data collapse onto a single scaling law that varies as the 1/3 power of the total drop distance, the 1/2 power of cylinder length, and the 1/6 power of cylinder diameter. For shallow penetrations, the projectile shape plays a crucial role with sharper objects penetrating deeper.
description: 3 pages, 3 figures; experiment
Σύνθεση σεσκιτερπενοειδών του γένους Apiaceae και αναλόγων μέσω διαφοροποιημένης σύνθεσης
Creators: name: Κουργιαντάκη, Μαρία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Σεσκιτερπενοειδή
Σύνθεση
Κοινό ενδιάμεσο
Sesquiterpenoids
Synthesis
Common scaffold

description: Σκοπός της παρούσας διπλωματικής εργασίας ήταν η διαφοροποιημένη σύνθεση σεσκιτερπενίων γουαϊανικού και γερμακρανικού τύπου και ιδιαίτερα η σύνθεση syn 8,12- και 6,12-α-μεθυλενο-γ-λακτονικών σεσκιτερπενίων. Οι συγκεκριμένες κατηγορίες λακτονικών μορίων είναι οι πιο άφθονες στη φύση και παρουσιάζουν τις σημαντικότερες βιολογικές δράσεις. Αρχικά, έγινε η σύνθεση ενός 8,12-λακτονικού ενδιαμέσου, με πρώτη ύλη τη (R)-καρβόνη, το οποίο μετά από κυκλοποίηση μέσω αντιδράσεων oxy-Cope και ενίου δίνει τους βασικούς καρβοκυκλικούς σκελετούς, οι οποίοι εν συνεχεία υπόκεινται σε μια σειρά οξειδωτικών ή/και αναγωγικών διεργασιών ώστε να επιτευχθεί η σύνθεση φυσικών σεσκιτερπενίων της οικογένειας Asteraceae. Στη συνέχεια, η αρχικά σχεδιασμένη πορεία τροποποιήθηκε ώστε να επιτευχθεί η σύνθεση ενός μη λακτονικού κοινού ενδιαμέσου το οποίο θα υποβληθεί σε παρόμοιες διεργασίες προκειμένου να επιτευχθεί η σύνθεση σεσκιτερπενίων της οικογένειας Apiaceae που φέρουν αντίθετη στερεοχημεία στη γέφυρα του γουαϊανολιδικού σκελετού και θα παρέχει πρόσβαση τόσο σε 8,12- όσο και σε 6,12-λακτονικά σεσκιτερπένια αλλά και σε μη λακτονικά φυσικά προϊόντα. Τέλος, ένας ακόμα στόχος είναι η εύρεση ενός πρόδρομου μορίου το οποίο θα συνδέσει τις δύο παραπάνω πορείες μεταξύ τους.
description: The aim of the present dissertation was the collective synthesis of guaiane and germacrane sesquiterpenes and especially that of syn 8,12- and 6,12-α-methylene-γ-sesquiterpenoid lactones. These two categories of lactonic sesquiterpenoids are the most abundant in nature and possess the most interesting biological activities. Firstly, a 8,12-lactone common scaffold was synthesized starting from (R)-carvone, which was transformed into a guaianolide and germacranolide skeleton via oxy-Cope and ene- reactions. These structures are subjected to oxidative and reductive reactions in order to achieve the production of natural sesquiterpenes of the Asteraceae family. Secondly, the developed synthetic plan was altered in order to produce a non-lactonic common scaffold which would undergo the same reactions as the lactonic in order to synthesize sesquiterpenes of the Apiaceae family, which bear opposite stereochemistry on the guaianolide bridge and would provide access to both 8,12 and 6,12 sesquiterpenoid lactones as well as to non-lactonic natural products. Lastly, we wish to identify a common precursor that would link the synthetic routes of the two common scaffolds.
Πηνελόπη, η αποτύπωσή της στην Οδύσσεια του Ομήρου και στην Πηνελοπιάδα της Margaret Atwood
Creators: name: Κούτοβα, Μαργαρίτα Αγριππίνα
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Μονόλογος
Πηνελοπιάδα
Αtwood
Monologue
Penelopiad
Atwood

description: H παρούσα διπλωματική εργασία αποτελείται από δυο μέρη. Στα α’ μέρος, παρατίθεται η έρευνά μου γύρω από το πρόσωπο της Πηνελόπης, ώστε να ενισχυθεί και να υποστηριχθούν οι τις επιλογές της παράστασης Ausencia. Αναφέρονται τα βασικά χαρακτηριστικά της, όπως αυτά αποτυπώνονται στο έπος του Ομήρου και επιλέγονται τα σημεία που την καθιστούν αμφιλεγόμενο χαρακτήρα. Στη συνέχεια παραθέτω την πορεία και τα γνωρίσματα που της αποδίδει η Margaret Atwood, στη νουβέλα της με τίτλο Πηνελοπιάδα. Στο β΄μέρος γίνεται μια παράθεση της διαδικασίας που οδήγησε στη δημιουργία και την παρουσίαση της παράστασης, καθώς καταγράφονται οι προθέσεις και οι επιλογές τις δημιουργικής διαδικασίας και μια τελική αξιολόγηση μετά την ολοκλήρωσή της.
description: This dissertation consists of two parts. In the first part I present my research around Penelope’s character, in order to strengthen and support the choices of the Ausencia show. Her main features are mentioned the way they are reflected in Homer's epic, and then the points that make her a controversial character are selected. Then I quote the features that Margaret Atwood attributes to her, in her novel entitled Penelope. In the second part there is a list of the process that led to the creation and presentation of the show, as well as the intentions and choices of the creative process and a final evaluation after the dissertation was completed.
Kaiser Family Foundation Poll: Late April 2020 Kaiser Health Tracking Poll
Creators: name: Kaiser Family Foundation
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Life disrupted by coronavirus (COVID-19) outbreak (2); feelings about coronavirus outbreak in United States (1); following social distancing guidelines (3); actions taken because of coronavirus outbreak (2); leaving home for various reasons (4); shelter-in-place measures (2); essential worker (1); phone app that alerts close contact with someone with coronavirus (16); know anyone who tested positive for coronavirus (1); know anyone who thinks they have/had coronavirus (1); know anyone who has died from coronavirus (1); coronavirus home testing kit (1); access to health care since US outbreak (3); financial difficulties due to coronavirus outbreak (6); worry/stress caused by coronavirus (6); change in employment due to coronavirus outbreak (8); spouse's change in employment due to coronavirus outbreak (5); health insurance coverage (6); financial concerns (7); unexpected medical bills (1); health status (2); political partisanship (3).
RXJ0256.5+0006: a merging cluster of galaxies at z=0.36 observed with XMM-Newton
Creators: name: Majerowicz, S.
name: Neumann, D. M.
name: Romer, A. K.
name: Nichol, R. C.
name: Burke, D. J.
name: Collins, C. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) We present a study based on XMM data of RX J0256.5+0006, a medium distant (z=0.36) galaxy cluster found in the Bright SHARC catalog. The intracluster medium shows a bimodal structure: one main cluster component and a substructure in the west. Despite the indication of interaction we do not find any sign of temperature gradients. Due to the non-symmetric form of the main cluster we extract surface brightness profiles in different sectors around its centre. We see large variations between the profiles, which we quantify by beta-model fitting. The corresponding r_c's vary between 0.1-0.5Mpc and the beta's between 0.5-1.2. The variations of the beta-model parameters indicate that the main cluster is not entirely relaxed. This hypothesis is strengthened by the fact that the cluster is over-luminous with respect to the (z-evolving) L_x-T relation found for nearby clusters. Comparing our profiles to the reference emission measure profile of Arnaud et al., we find that only the profile extracted north-east (NE) of the main cluster centre is similar to this reference profile. This indicates that only the NE profile is representative for the relaxed part of this cluster component. Using this profile and the spectroscopically fitted temperature of T=4.9^+0.5_-0.4keV we find M_500~4 10^14 solar masses. This value is in agreement with the value obtained using the z-evolving M_500-T relation from the HIFLUGCS sample. For the gas mass fraction we find f_g~18-20% which is in good agreement with other work. We also develop a simple on-axis merger model for the cluster. Together with a simple ram pressure model we find that the most likely physical distance of the subcluster to the main cluster lies between 0.6
description: 19 pages including 19 figures (including 4 figures in jpg and png format), accepted for publication in A&A
A project of statistical models in dermatology. Psoriasis case study
Creators: name: Vega, Cristóbal
Publisher: name: Zenodo
Year: 2021
Subjects: psoriasis
dermatology
stochastic processes
forecast

description: This initial project is presented to the Spanish Academy of Dermatology and Venerology (AEVD) for the development of a line of stochastic processes in dermatology within the academy's research unit. It raises a preliminary review of the current situation of recently published studies on psoriasis, indicates how the research line would develop. It carry on with the axes of the center of the proposal, to continue with the methodology of the study, the ideal schedule for each project; and finally concludes with the feasibility of the project.
title: Circadian patterns in key physiological processes of the marine diatom Phaeodactylum tricornutum
Creators: name: Ragni, Maria
Publisher: name: The Open University
Year: 2005

description: Circadian rhythms are a widespread feature among all the levels of organismal complexity, from bacteria to humans. Nevertheless their ecological relevance in marine phytoplankton has not been clearly assessed.
In this study the diatom P. tricomutum, was used as a model for giving an integrated picture of the circadian patterns of phytoplankton photophysiology in relation to the external light field and for assessing the interaction between the cell cycle and the temporal control of processes like pigment synthesis and photosynthesis.
The results suggest that light/dark shifts are crucial for regulating the timing of different cell activities, including the synthesis of photoprotectant pigments (i.e., diadinoxanthin). The photosynthetic processes run at different paces in different stages of the cell cycle and different times of the day. This would imply a synchronization of cell processes due to both internal and external entrainer/s. When the external trigger is removed (e.g., in absence of light/dark shifts), the time distribution of the cell cycle stages quickly flattens, the efficiency of the use of light lowers, as well as the flexibility in facing light variations. Though, this does not always involve the loss of synchronization of processes like pigment synthesis, or the activation/inactivation of the photosynthetic machinery.
The results from an in situ experiment support the occurrence of a circadian regulation of photophysiological processes in natural phytoplankton, at least in the upper layer of the water column, where solar radiation can act as a signal for the entrainment of circadian rhythms, whether or not mediated by specific photoreceptors.
The overall picture is that the presence of systems for the circadian control of physiological activity would be a successful feature in marine phytoplankton, which is reasonable also in an evolutionary perspective, since the day/night cycle is a permanent pattern in the Earth system.
Self-Augmentation: Generalizing Deep Networks to Unseen Classes for Few-Shot Learning
Creators: name: Seo, Jin-Woo
name: Jung, Hong-Gyu
name: Lee, Seong-Whan
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: Few-shot learning aims to classify unseen classes with a few training examples. While recent works have shown that standard mini-batch training with a carefully designed training strategy can improve generalization ability for unseen classes, well-known problems in deep networks such as memorizing training statistics have been less explored for few-shot learning. To tackle this issue, we propose self-augmentation that consolidates self-mix and self-distillation. Specifically, we exploit a regional dropout technique called self-mix, in which a patch of an image is substituted into other values in the same image. Then, we employ a backbone network that has auxiliary branches with its own classifier to enforce knowledge sharing. Lastly, we present a local representation learner to further exploit a few training examples for unseen classes. Experimental results show that the proposed method outperforms the state-of-the-art methods for prevalent few-shot benchmarks and improves the generalization ability.
description: The first two authors contributed equally to this work
title: The science of negotiation - Stakeholder engagement in discussions about science and uncertainty in the negotiations of a fisheries management plan for the Dogger Bank under Natura 2000
Creators: name: Krueger, Ina
name: Berner, Liv
name: Wurzel, Rüdiger
name: Otter, Henriette
Publisher: name: ASC 2012 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.Policy processes in Marine Spatial Planning seek to manage the decreasing space, as new-coming sectors are competing with established sectors for access to the sea. In scientific, as well as grey literature on MSP, it is a commonly accepted notion that decision-makers need to involve stakeholders in the decision-making process, and that decision-making processes should be based on the best available scientific data.
The origin of the matter-antimatter asymmetry
Creators: name: Dine, Michael
name: Kusenko, Alexander
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although the origin of matter-antimatter asymmetry remains unknown, continuing advances in theory and improved experimental limits have ruled out some scenarios for baryogenesis, for example the sphaleron baryogenesis at the electroweak phase transition in the standard model. At the same time, the success of cosmological inflation and the prospects for discovering supersymmetry at the LHC have put some other models in sharper focus. We review the current state of our understanding of baryogenesis with the emphasis on those scenarios that we consider most plausible.
description: submitted to Reviews of Modern Physics; 38 pages; 9 figures
Multiple imputation of longitudinal categorical data through bayesian mixture latent Markov models
Creators: name: Vidotto, Davide
name: Vermunt, Jeroen K.
name: Van Deun, Katrijn
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Standard latent class modeling has recently been shown to provide a flexible tool for the multiple imputation (MI) of missing categorical covariates in cross-sectional studies. This article introduces an analogous tool for longitudinal studies: MI using Bayesian mixture Latent Markov (BMLM) models. Besides retaining the benefits of latent class models, i.e. respecting the (categorical) measurement scale of the variables and preserving possibly complex relationships between variables within a measurement occasion, the Markov dependence structure of the proposed BMLM model allows capturing lagged dependencies between adjacent time points, while the time-constant mixture structure allows capturing dependencies across all time points, as well as retrieving associations between time-varying and time-constant variables. The performance of the BMLM model for MI is evaluated by means of a simulation study and an empirical experiment, in which it is compared with complete case analysis and MICE. Results show good performance of the proposed method in retrieving the parameters of the analysis model. In contrast, competing methods could provide correct estimates only for some aspects of the data.
Transport signatures of topological phases in double nanowires probed by spin-polarized STM
Creators: name: Thakurathi, Manisha
name: Chevallier, Denis
name: Loss, Daniel
name: Klinovaja, Jelena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study a double-nanowire setup proximity coupled to an $s$-wave superconductor and search for the bulk signatures of the topological phase transition that can be observed experimentally, for example, with an STM tip. Three bulk quantities, namely, the charge, the spin polarization, and the pairing amplitude of intrawire superconductivity are studied in this work. The spin polarization and the pairing amplitude flip sign as the system undergoes a phase transition from the trivial to the topological phase. In order to identify promising ways to observe bulk signatures of the phase transition in transport experiments, we compute the spin current flowing between a local spin-polarized probe, such as an STM tip, and the double-nanowire system in the Keldysh formalism. We find that the spin current contains information about the sign flip of the bulk spin polarization and can be used to determine the topological phase transition point.
description: 12 pages, 7 figures
title: Fishery versus new concepts of the use of sea space an example of the Polish Marine Areas
Creators: name: Andrulewicz, E.
name: Kuzebski, W. Pelczarski. E.
name: Szymanek, L.
Publisher: name: ASC 2012 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.In our presentation, we attempt to discuss how fishery may coexist with the new technical developments as well as with the existing and planned technical constructions which are going to be set-up in the Polish Marine Areas of the Baltic Sea. Polish fishery will face restrictions of its activities in offshore and coastal waters due to numerous projects of the sea space usage for energy production (wind farms), extraction of mineral resources (oil and gas, sand and gravel) as well as for setting new pipelines and cables (Fig. 1).
Preliminary Forensics Analysis of DeepFake Images
Creators: name: Guarnera, Luca
name: Giudice, Oliver
name: Nastasi, Cristina
name: Battiato, Sebastiano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: One of the most terrifying phenomenon nowadays is the DeepFake: the possibility to automatically replace a person's face in images and videos by exploiting algorithms based on deep learning. This paper will present a brief overview of technologies able to produce DeepFake images of faces. A forensics analysis of those images with standard methods will be presented: not surprisingly state of the art techniques are not completely able to detect the fakeness. To solve this, a preliminary idea on how to fight DeepFake images of faces will be presented by analysing anomalies in the frequency domain.
description: Accepted at IEEE AEIT International Annual Conference 2020
Power Corrections in Charmless B Decays
Creators: name: Pham, T. N.
name: Zhu, Guohuai
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper, we focus on the role of power corrections in QCD factorization(QCDF) method in charmless two-body nonleptonic $B$ meson decays. We use the ratio of the branching fraction of $B^+ \to π^+ K^{\ast 0}$ to that of $B^0 \to π^- ρ^+$, for which the theoretical uncertainties are greatly reduced, to show clearly that the power corrections in charmless B decays are probably large. With other similar ratios considered, for example, for the $B^0 \to K^- ρ^+$ decay, it is very likely that, among various sources of power corrections, annihilation topology plays an indispensable role at least for penguin dominated $\rm PV$ channels. We also consider some selective ratios of direct CP asymmetries. Among these, we find that, if power corrections other than the chirally enhanced power corrections and annihilation topology were negligible, QCDF would predict the direct CP asymmetry of $B \to π^+ π^-$ to be about 3 times larger than that of $B \to π^\pm K^\mp$, with opposite sign. Experimentally any significant deviation from this prediction would suggest either new physics or possibly the importance of long-distance rescattering effects.
description: references and note added, to appear in Phys. Rev. D
Updated tests of scaling and universality for the spin-spin correlations in the 2D and 3D spin-S Ising models using high-temperature expansions
Creators: name: Butera, P.
name: Comi, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have extended, from order 12 through order 25, the high-temperature series expansions (in zero magnetic field) for the spin-spin correlations of the spin-S Ising models on the square, simple-cubic and body-centered-cubic lattices. On the basis of this large set of data, we confirm accurately the validity of the scaling and universality hypotheses by resuming several tests which involve the correlation function, its moments and the exponential or the second-moment correlation-lengths.
description: 21 pages, 8 figures
Clustering of longitudinal interval-valued data via mixture distribution under covariance separability
Creators: name: Seongoh Park
name: Lim, Johan
name: Hyejeong Choi
name: Minjung Kwak
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: We consider the clustering of repeatedly measured ‘min-max’ type interval-valued data. We read the data as matrix variate data and assume the covariance matrix is separable for the model-based clustering (M-clustering). The use of a separable covariance matrix introduces several advantages in M-clustering, which include fewer samples required for a valid procedure. In addition, the numerical study shows that this structured matrix allows us to find the correct number of clusters more accurately compared to other commonly assumed covariance matrices. We apply the M-clustering with various covariance structures to clustering the longitudinal blood pressure data from the National Heart, Lung, and Blood Institute Growth and Health Study (NGHS).
Additional file 1 of ‘Smart’ copycat mutual funds: on the performance of partial imitation strategies
Creators: name: Stein, Roberto
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Appendix A: Further Tests (online appendix).