cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
STATED PREFERENCES AND LENGTH OF RESIDENCY IN RURAL COMMUNITIES: ARE DEVELOPMENT AND CONSERVATION VALUES HETEROGENEOUS?
Creators: name: Johnston, Robert J.
name: Swallow, Stephen K.
name: Bauer, Dana Marie
name: Johnston, Robert J.
name: Swallow, Stephen K.
name: Bauer, Dana Marie
Publisher: name: Unknown
Year: 2002
Subjects: Community/Rural/Urban Development
Land Economics/Use

description: Newer residents of rural, urban-fringe communities are often assumed to have preferences for the development and conservation of rural lands that differ from those of longer-term residents. The existing literature offers little to verify or quantify presumed preference shifts. This paper provides a systematic, quantitative examination of whether stated preferences for development and conservation tradeoffs differ according to length of residency in a rural community, and explores implications of these findings for assumptions regarding development and conservation preferences. Results are based on stated preferences estimated from a multi-attribute contingent choice survey of Rhode Island rural residents. Heterogeneity-according to length of town residency-is incorporated using Lagrangian Interpolation Polynomials. This approach models the influence of policy attributes as a polynomial function of residence time, thereby allowing estimated coefficient values to vary as a continuous function of residence duration.
title: Tunable fullerene affinity of cages, bowls and rings assembled by Pd(II) coordination sphere engineering
title: in memory of Prof. Dr. Carsten Schmuck
titleType: AlternativeTitle
Creators: name: Chen, Bin
name: Horiuchi, Shinnosuke
name: Holstein, Julian J.
name: Tessarolo, Jacopo
name: Clever, Guido H.
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Molecular recognition
subject: Coordination cages
subject: Supramolecular chemistry
subject: Fullerenes
subject: Self-assembly
subject: 540

description: For metal‐mediated host compounds, the development of strategies to reduce symmetry and introduce multiple functionalities in a non‐statistical way is a challenging task. We show that the introduction of steric stress around the coordination environment of square‐planar Pd(II) cations and bis‐monodentate nitrogen donor ligands allows to control the size and shape of the assembly product, from [Pd2L4] cages over [Pd2L3] bowl‐shaped structures to [Pd2L2] rings. Therefore, banana‐shaped ligand backbones were equipped with pyridines, two different quinoline isomers and acridine, the latter three introducing steric congestion through hydrogen substituents on annelated benzene rings. Differing behavior of the four resulting hosts towards the binding of C60 and C70 fullerenes was studied and related to structural differences by NMR spectroscopy, mass spectrometry and single crystal X‐ray diffraction. The three cages based on pyridine, 6‐quinoline or 3‐quinoline donors were found to either bind C60, C70 or no fullerene at all.
RENTAL PREMIUMS FOR SHARE VERSUS CASH LEASES
Creators: name: Barry, Peter J.
name: Escalante, Cesar L.
name: Moss, Leeann E.
name: Barry, Peter J.
name: Escalante, Cesar L.
name: Moss, Leeann E.
Publisher: name: Unknown
Year: 2002
Subjects: Land Economics/Use

description: Non-risk factors primarily determine the probability of paying positive premiums to landowners for bearing greater risk under crop share versus cash leasing arrangements. The trends toward higher cash rent levels on larger farms may indicate that higher cash rent is a bidding strategy to control additional leased acreage and perhaps to avoid management sharing with multiple landlords. Expansion of farm size may be more important than soil productivity in negotiating higher cash rents, due to potential size economies and under utilized machinery investments.
Scale separation in granular packings: stress plateaus and fluctuations
Creators: name: Goldenberg, C.
name: Atman, A. P. F.
name: Claudin, P.
name: Combe, G.
name: Goldhirsch, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is demonstrated, by numerical simulations of a 2D assembly of polydisperse disks, that there exists a range (plateau) of coarse graining scales for which the stress tensor field in a granular solid is nearly resolution independent, thereby enabling an `objective' definition of this field. Expectedly, it is not the mere size of the the system but the (related) magnitudes of the gradients that determine the widths of the plateaus. Ensemble averaging (even over `small' ensembles) extends the widths of the plateaus to sub-particle scales. The fluctuations within the ensemble are studied as well. Both the response to homogeneous forcing and to an external compressive localized load (and gravity) are studied. Implications to small solid systems and constitutive relations are briefly discussed.
description: 4 pages, 4 figures, RevTeX 4, Minor corrections to match the published version
Ποιότητα λογιστικής πληροφόρησης και εταιρική διακυβέρνηση
Creators: name: Τσαγκάρης, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Χειραγώγηση κερδών
subject: Εταιρική διακυβέρνηση
subject: Ποιότητα κερδών
subject: Discretionary accruals

description: Η παρούσα εργασία αποσκοπεί στο να εξετάσει την επίπτωση της εταιρικής διακυβέρνησης στη χειραγώγηση κερδών που πιθανώς γίνεται από τις εταιρείες. Σύμφωνα με την επιστημονική έρευνα οι μηχανισμοί χρηστής εταιρικής διακυβέρνησης μειώνουν το εύρος της χειραγώγησης κερδών. Για να εξετασθεί το είδος αυτής της σχέσης χρησιμοποιήθηκαν δεδομένα από την περίοδο 2005-2018, τα οποία αντλήθηκαν από την DataStream για τις εισηγμένες εταιρείες που εδρεύουν στην Ευρωπαϊκή Ένωση και ακολουθούν Διεθνή Λογιστικά πρότυπα (IFRS). Για την εκτίμηση της χειραγώγησης κερδών χρησιμοποιήθηκαν τα μοντέλα Jones (1991), Modified Jones (1995) που εκτιμούν τα discretionary accruals καθώς και το μοντέλο των Dechow & Dichev (2002) που εκτιμά την ποιότητα των δεδουλευμένων κεφαλαίων κίνησης (WCA) τα οποία αποτελούν proxies χειραγώγησης κερδών και κινδύνου πληροφόρησης (information risk) αντίστοιχα. Χρησιμοποιώντας proxies εταιρικής διακυβέρνησης καθώς και μεταβλητές ελέγχου για τα ειδικά χαρακτηριστικά της κάθε εταιρείας και σαν εξαρτημένη τα proxies της χειραγώγησης κερδών, βρήκαμε ότι οι πολιτικές γένους, η ανεξαρτησία της επιτροπής ελέγχου καθώς και το μέγεθος του ΔΣ επηρεάζουν αρνητικά την χειραγώγηση κερδών ενώ η δυαδικότητα του CEO θετικά. Τέλος δεν φαίνεται να υπάρχει σημαντική διαφορά στην επίπτωση όσον αφορά την προς τα πάνω ή την προς τα κάτω χειραγώγηση.
Deep Learning for Strong Lensing Search: Tests of the Convolutional Neural Networks and New Candidates from KiDS DR3
Creators: name: He, Zizhao
name: Er, Xinzhong
name: Long, Qian
name: Liu, Dezi
name: Liu, Xiangkun
name: Li, Ziwei
name: Liu, Yun
name: Deng, Wenqaing
name: Fan, Zuhui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Convolutional Neutral Networks have been successfully applied in searching for strong lensing systems, leading to discoveries of new candidates from large surveys. On the other hand, systematic investigations about their robustness are still lacking. In this paper, we first construct a neutral network, and apply it to $r$-band images of Luminous Red Galaxies (LRGs) of the Kilo Degree Survey (KiDS) Data Release 3 to search for strong lensing systems. We build two sets of training samples, one fully from simulations, and the other one using the LRG stamps from KiDS observations as the foreground lens images. With the former training sample, we find 48 high probability candidates after human-inspection, and among them, 27 are newly identified. Using the latter training set, about 67\% of the aforementioned 48 candidates are also found, and there are 11 more new strong lensing candidates identified. We then carry out tests on the robustness of the network performance with respect to the variation of PSF. With the testing samples constructed using PSF in the range of 0.4 to 2 times of the median PSF of the training sample, we find that our network performs rather stable, and the degradation is small. We also investigate how the volume of the training set can affect our network performance by varying it from 0.1 millions to 0.8 millions. The output results are rather stable showing that within the considered range, our network performance is not very sensitive to the volume size.
description: 17 pages, 13 figures. Accepted by MNRAS. Comments welcome
LAND USE, POPULATION DISTRIBUTION, AND PUBLIC SERVICE EXPENDITURES OF LOCAL GOVERNMENTS
Creators: name: Begashaw, Getachew W.
name: Begashaw, Getachew W.
Publisher: name: Unknown
Year: 2002
Subjects: Public Economics

description: Local governments provide more or less similar and comparable public services like police protection, fire control, roads, water and sewer, parks and recreation, public improvements, planning and zoning, and general administrative services to the residents in their jurisdictions. Yet, there are significant variations in the per capita expenditures of public service expenditures of comparable communities. What are the factors that explain these variations? This study attempts to answer the above questions using an extensive panel data of forty-six fast growing local governments in the State of Michigan. The explanatory variables considered in the study are population size, population growth rate, population density, type of government structure, per capita values of different types of property, and location of community in relation to metropolitan areas. A Fixed Effects econometric model was employed to analyze the data sets. The results showed that: (1) per capita public service expenditures of fast growing communities vary widely, (2) cities and townships of different population sizes have different expenditure patterns, and (3) communities located close to metropolitan districts have higher expenditures than those located farther away. More importantly, while the explanatory power of all variables varied across community groups, the per capita value of total property was found to be a consistently significant variable in explaining the variations in expenditures of local governments. If population growth into smaller size communities is re-directed, the savings that could be obtained from the joint impact of increased population and a dense new residential development could be substantial.
Enhancement of giant magnetoresistance effect in the Ruddlesden-Popper phase Sr3Fe2-xCoxO7-d: Predominant role of oxygen nonstoichiometry and magnetic phase separation
Creators: name: Motohashi, T.
name: Raveau, B.
name: Hervieu, M.
name: Maignan, A.
name: Pralong, V.
name: Nguyen, N.
name: Caignaert, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic and magnetotransport properties of the Sr3Fe2-xCoxO7-d system (0.2 <= x <= 1.0) were systematically investigated. This oxide system exhibits a giant magnetoresistance (GMR) effect at low temperatures, reaching up to 80% in 7 T at 5 K. Ac-susceptibility measurements show that there exists a strong competition between ferromagnetic (F) and spin glass states, and the balance between these two magnetic states can be controlled by varying cobalt (x) and/or oxygen contents (d). Importantly, the MR effect is closely related to the magnetic property: the development of magnetic disordering leads to enhancement in the negative MR effect. It is suggested that the compound segregates into F clusters embedded in a non-F matrix, being a naturally occurring analog of the artificial granular-GMR materials, as in the doped perovskite cobaltites, La1-xSrxCoO3 (x < 0.18).
description: 31 pages, 10 figures, to appear in J. Phys.: Condens. Matter
A GAME THEORETIC ANALYSIS OF U.S. RICE EXPORT POLICY: THE CASE OF JAPAN AND KOREA
Creators: name: Lee, Dae-Seob
name: Kennedy, P. Lynn
name: Lee, Dae-Seob
name: Kennedy, P. Lynn
Publisher: name: Unknown
Year: 2002
Subjects: International Relations/Trade

description: As a result of the Uruguay Round (UR), the impact on the international rice market is dramatic.The major U.S. benefit of the UR has been the access to the Japanese market. However, the U.S. share of this import market has been unstable and the share of Korean rice market is nearly zero prior to February 2002. Econometric estimation and Political Preference Function (PPF) approach are incorporated into a game theoretic analysis to analyze U.S. export potential to Japan and Korea.
Temperature-induced formation of lubricous oxides in vanadium containing iron-based arc sprayed coatings
Creators: name: Tillmann, Wolfgang
name: Hagen, Leif
name: Kokalj, David
name: Paulus, Michael
name: Tolan, Metin
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Wire arc spray
subject: Friction behavior
subject: Lubricous oxides
subject: XANES spectroscopy
subject: 620
subject: 670

description: In the field of surface engineering, the use of self-lubricous coatings with the incorporation of vanadium represent a promising approach to reduce friction, thus contributing to the wear behavior. For vanadium containing hard coatings produced by means of thin film technology, the reduction in friction at elevated temperatures was repeatedly attributed to temperature-induced and tribo-oxidatively formed oxides which act as solid lubricant. Only very few studies focused on the tribological characteristics of vanadium containing arc sprayed coatings. In this study, the tribological characteristics of a vanadium containing iron-based arc sprayed deposit were investigated in dry sliding experiments under ambient conditions and different temperatures. Types of wear at the worn surfaces and counterparts were examined by means of electron microscopy and energy dispersive X-ray (EDX) spectroscopy. The speciation of vanadium in the superficial layer was determined using X-ray absorption near edge structure (XANES) spectroscopy. It was found that the vanadium-containing coating exhibited a distinctly reduction of the coefficient of friction above 450 °C which further decreased with increasing temperature. XANES spectroscopy indicated an increased oxidation state for the V component on the coating surface, suggesting the prevalence of specific vanadium oxides which promote a self-lubricating ability of the coating.
description: Coatings;Jg. 9, Heft: 1. S. 18-1-18-15
SPATIAL EQUILIBRIUM MODELING WITH IMPERFECTLY COMPETITIVE MARKETS: AN APPLICATION TO RICE TRADE
Creators: name: Chen, Chi-Chung
name: McCarl, Bruce A.
name: Chang, Ching-Cheng
name: Hsu, Shih-Hsun
name: Chen, Chi-Chung
name: McCarl, Bruce A.
name: Chang, Ching-Cheng
name: Hsu, Shih-Hsun
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business

description: A general imperfect competition spatial equilibrium model is developed to estimate the trading country behaviors in the international rice market using a conjectural variation approach. Such a model allows the possibility of an imperfect competitive market to exit on both the export and import sides without any assumption of market structure. The empirical results show that the major exporting countries, Thailand, Vietnam, and the U.S. acted as high degree of imperfect competitors(or oligopolies) while Pakistan acted as a lower degree of imperfect competitor. The importing countries such as Japan, the Philippines, Europe, Brazil, and the former USSR behaved as high degree of imperfect competitors (or oligopsonies). The empirical results also show that there are welfare gains of $1,492 million when all trading countries comply with the free trade agreement.
Τεχνολογικά υποστηριζόμενη μάθηση - παρεμβάσεις στην πρωτοβάθμια εκπαίδευση για την ανάπτυξη δεξιοτήτων στον 21ο αιώνα: δημιουργία ενός e-course χρησιμοποιώντας τη μέθοδο του Design Thinking για την καλλιέργεια δεξιοτήτων του 21ου αιώνα
Creators: name: Μπαχούμα, Παναγιώτα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Ηλεκτρονική μάθηση
subject: Design thinking
subject: Δημιουργικότητα
subject: Συνεργατικότητα
subject: Ψηφιακές κατασκευές
subject: STEAM
subject: The Launch Cycle
subject: The 6 Thinking Hats
subject: e-Course
subject: Μικτή μάθηση

description: Στην εποχή μας συνηθίζεται ακόμη ο παραδοσιακός τρόπος διδασκαλίας με αποτέλεσμα να μην καλλιεργούνται δύο από τις βασικότερες δεξιότητες του 21ου αιώνα, όπως η δημιουργικότητα και η συνεργατικότητα. Για να προωθηθούν αυτές οι δεξιότητες σχεδιάστηκε και στήθηκε στο διαδίκτυο ένα e-course μικτής μάθησης για μαθητές της ΣΤ’ Δημοτικού με τη βοήθεια του διαδικτυακού εργαλείου Weebly. Βασικό θεωρητικό μοντέλο ήταν η προσαρμογή του Design Thinking σε μαθητές δημοτικού, η μέθοδος The Launch Cycle. Οι ενότητες και οι δραστηριότητες του μαθήματος διαρθρώθηκαν με βάση τα στάδια του και ενορχηστρώθηκε με τη δημιουργική στρατηγική The 6 Thinking Hats, για να προάγει τη δημιουργικότητα μεταξύ των μαθητών. Αναλυτικότερα, χρησιμοποιήθηκαν οι ακολουθίες των καπέλων που αφορούν την Επίλυση Προβλήματος και τη Γρήγορη Αξιολόγηση. Οι μαθητές εργάστηκαν σε ομάδες, οι οποίες οργανώθηκαν με τη χρήση των συνεργατικών στρατηγικών Brainstorming και Jigsaw, ώστε να αναπτυχθεί η συνεργατικότητά τους. Το μάθημα υλοποιήθηκε στην εκπαιδευτική αίθουσα με τη βοήθεια συσκευών i-Pad 2.0. Η μελέτη εφαρμόστηκε σε ένα μικρό δείγμα μαθητών (18) της ΣΤ’ τάξης της Πρωτοβάθμιας σχολικής εκπαίδευσης με τη μορφή της ανάλυσης περίπτωσης (case study). Για τη συλλογή των δεδομένων δημιουργήθηκαν ρουμπρίκες προ-ελέγχου και μετά-ελέγχου. Από την ποιοτική και ποσοτική ανάλυση των δεδομένων που συγκεντρώθηκαν στην αρχική και στην τελική φάση της διαδικασίας, φαίνεται πως οι εκπαιδευόμενοι έμειναν κυρίως στο ίδιο επίπεδο δημιουργικότητας που είχαν πριν το μάθημα, η συνεργατικότητα μεταξύ τους αυξήθηκε και το μάθημα ήταν αρκετά αποτελεσματικό. Η συμβολή της παρούσας μελέτης επικεντρώνεται λοιπόν στα αποτελέσματα που προέκυψαν, με σκοπό να καταδειχθεί ένας εναλλακτικός τρόπος μάθησης βασισμένος στον συνδυασμό της νέας μεθόδου του The Launch Cycle και των The 6 Thinking Hats, με τη χρήση της τεχνολογίας σχετικά με τη δημιουργικότητα και τη συνεργατικότητα και τους τρόπους που θα μπορούσε αυτή να βελτιωθεί μελλοντικά.
The gene transfer agent (GTA) of Rhodobacter capsulatus
Creators: name: Lang, Andrew Stephen
Publisher: name: University of British Columbia
Year: 2009

description: An unusual system of genetic exchange exists in the purple non-sulfur bacterium Rhodobacter capsulatus. DNA transmission is mediated by a small bacteriophage-like particle called the gene transfer agent (GTA) that transfers random 4.5 kb segments of the producing cell's genome to recipient cells, where allelic replacement occurs. This thesis presents the results of gene mutagenesis, cloning, and analysis experiments which show that GTA resembles a defective prophage related to bacteriophages from diverse genera of bacteria, that has been adopted by R. capsulatus for genetic exchange. A pair of cellular proteins, CckA and CtrA, appear to constitute part of a sensor kinase/response regulator signaling pathway that is involved in expression of GTA structural genes. This signaling pathway controls growth phase-dependent regulation of GTA gene messages, yielding maximal gene expression in the stationary phase. I suggest that GTA is an ancient prophage remnant that has evolved in concert with the bacterial genome, resulting in a genetic exchange process Controlled by the bacterial cell.
Time-Travel Rephotography
Creators: name: Luo, Xuan
name: Zhang, Xuaner
name: Yoo, Paul
name: Martin-Brualla, Ricardo
name: Lawrence, Jason
name: Seitz, Steven M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Many historical people were only ever captured by old, faded, black and white photos, that are distorted due to the limitations of early cameras and the passage of time. This paper simulates traveling back in time with a modern camera to rephotograph famous subjects. Unlike conventional image restoration filters which apply independent operations like denoising, colorization, and superresolution, we leverage the StyleGAN2 framework to project old photos into the space of modern high-resolution photos, achieving all of these effects in a unified framework. A unique challenge with this approach is retaining the identity and pose of the subject in the original photo, while discarding the many artifacts frequently seen in low-quality antique photos. Our comparisons to current state-of-the-art restoration filters show significant improvements and compelling results for a variety of important historical people.
description: SIGGRAPH Asia 2021. Project Page: https://time-travel-rephotography.github.io Video: https://youtu.be/ceIopN2UZ_s
HOW MUCH DO FARMERS VALUE THEIR INDEPENDENCE? ESTIMATING THE RISK AND AUTONOMY PREMIA ASSOCIATED WITH PRODUCTION CONTRACTS
Creators: name: Key, Nigel D.
name: Key, Nigel D.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Farm Management
subject: agricultural contracts
subject: autonomy
subject: nonpecuniary benefits
subject: risk

description: A farmer's decision to contract or produce independently depends on the distribution of income under both arrangements, and on attributes associated with both business arrangements. Risk-averse farmers should be willing to pay a risk premium for the reduction in price risk provided by a contract. Farmers with a preference for "autonomy" should be willing to pay a premium for certain attributes associated with independent production, such as the right to make management decisions and own the commodity they produce. The benefits to growers from contracting (such as risk reduction) may be over-estimated if the non-pecuniary benefits enjoyed by independent producers are not accounted for. This study uses national survey data to estimate the risk premium, the change in expected income, and the autonomy premium associated with hog production contracts.
Computing L-Polynomials of Picard curves from Cartier-Manin matrices
Creators: name: Asif, Sualeh
name: Fité, Francesc
name: Pentland, Dylan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M38, 14G10, 11Y16, 11G40

description: We study the sequence of zeta functions $Z(C_p,T)$ of a generic Picard curve $C:y^3=f(x)$ defined over $\mathbb{Q}$ at primes $p$ of good reduction for $C$. We define a degree 9 polynomial $ψ_f\in \mathbb{Q}[x]$ such that the splitting field of $ψ_f(x^3/2)$ is the $2$-torsion field of the Jacobian of $C$. We prove that, for all but a density zero subset of primes, the zeta function $Z(C_p,T)$ is uniquely determined by the Cartier-Manin matrix $A_p$ of $C$ modulo $p$ and the splitting behavior modulo $p$ of $f$ and $ψ_f$; we also show that for primes $\equiv 1 \pmod{3}$ the matrix $A_p$ suffices and that for primes $\equiv 2 \pmod{3}$ the genericity assumption on $C$ is unnecessary. An element of the proof, which may be of independent interest, is the determination of the density of the set of primes of ordinary reduction for a generic Picard curve. By combining this with recent work of Sutherland, we obtain a practical deterministic algorithm that computes $Z(C_p,T)$ for almost all primes $p \le N$ using $N\log(N)^{3+o(1)}$ bit operations. This is the first practical result of this type for curves of genus greater than 2.
description: Minor changes. To appear in Mathematics of Computation
title: Natürliche Kognition technologisch begreifen
Creators: name: Haun, Matthias
Publisher: name: UNSPECIFIED
Year: 2022

description: Die Technologisierung der Wissenschaften verändert die Welt, bzw. die Sichtweisen auf uns und die Welt. Dies zeigt sich insbesondere an der Erforschung der artifiziellen Kognition, was im Folgenden in Bezug auf ein spezifisches industrienahes Forschungs- und Entwicklungsprojekt aufgezeigt wird. Aufgrund der zu erwarteten Implikationen aus der wirklichkeitsverändernden Macht einer Technologisierung im Allgemeinen und der Entwicklung künstlicher Kognitionen im Speziellen gilt es, den Forschungsgegenstand der „natürlichen und artifiziellen Kognition“ zu begreifen oder zumindest begreiflich zu machen.
Concept and implementation of a two-stage coding scheme for the development of computer-based testing (CBT)-items in traditional test software
Creators: name: Ketschau, Thilo
name: Kleinhans, Janne
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Computer-based testing
subject: Test construction
subject: Item development
subject: Encoding
subject: Dichotomous/polytomous items
subject: 370

description: Computer-based testing (CBT) is gaining importance for studies addressing the diagnosis of competencies, because it is possible to simulate authentic action situations and may reduce the effort of analyzing the data. This benefit is most important for the phase of item design. In this phase of assessment construction, the pattern of answers of a sample is used to draw conclusions on the functionality of the items. Currently, there are no standards for the encodement of items which consider the specifications of CBT-instruments. These specifications are, for example, the a posteriori non-variability of the coding, a lack of information when using conventional test scores and the need of standardization of different formats of items. Taking these specifications into consideration, this paper proposes and discusses a two-stage coding systematization for CBT-items. For this, a distinction between item-coding and answer-coding was done. The coding is discussed for single-section and multi-section formats as well as dichotomous and polytomous answer modes. Therefore, this paper is for users of CBT-instruments who want to achieve the optimal information value of their test results with efficient coding.
description: J : multidisciplinary open access journal;Jg.: 2, Heft: 1 | S. 41-49
Ultrasonic and Electromagnetic Sensors for Downhole Reservoir Characterization
Creators: name: Wang, K.
name: Chien, H. T.
name: Liao, S.
name: Yuan, L. P.
name: Sheen, S. H.
name: Bakhtiari, S.
name: Raptis, A. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The current work covers the evaluation of ultrasonic and electromagnetic (EM) techniques applied to temperature measurement and flow characterization for Enhanced Geothermal System (EGS). We have evaluated both ultrasonic techniques and microwave radiometry for temperature gradient and profile measurements. A waveguide-based ultrasonic probe was developed to measure the temperature gradient. A statistic approach on estimating the average grain size via spectral analysis of the scattered ultrasonic signals is introduced. For directional temperature measurement, different microwave antenna designs are compared numerically and an array loop antenna design is selected for further development. Finally techniques to characterize the porosity and permeability of a hot dry rock resource are presented.
description: 7 pages, 5 figures
Next-to-leading Order QCD Corrections to A_TT for Single-Inclusive Hadron Production
Creators: name: Mukherjee, A.
name: Stratmann, M.
name: Vogelsang, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on a calculation of the next-to-leading order QCD corrections to the partonic cross sections contributing to single-inclusive high-p_T hadron production in collisions of transversely polarized hadrons. We give some predictions for the double spin asymmetry A_TT^πfor the proposed experiments at RHIC and at the GSI.
description: Presented at DIS 2005, Madison, Wisconsin, USA, April 27-May 1, 2005
HYDRO-POLITICS: SOCIO-ECONOMIC ANALYSIS OF INTERNATIONAL WATER TREATIES
Creators: name: Towfique, Basman
name: Espey, Molly
name: Towfique, Basman
name: Espey, Molly
Publisher: name: Unknown
Year: 2002
Subjects: International Relations/Trade
Resource /Energy Economics and Policy

description: Water resource issues are closely related to property rights issues, as the holders of property rights along a river bank, watershed, lake, or river basin, often take priority in terms of water usage. Rivers, aquifers and other bodies of water transgress national boundaries, giving rise to conflicts. Treaties, agreements, and conventions seek to allocate water rights among countries in a manner that benefits all participants. This study conducts an empirical analysis of macroeconomic, geological, hydrological, and institutional variables in order to determine factors contributing to the existence of bilateral treaty and treaty structure.
Green HR practices and green recovery performance: Exploring the mediating role of P-O fit and affective commitment
Creators: name: Hameed, Samiya
name: Nizam, Kehkashan
name: Mujeeb, Mahnoor
name: Munir, Tanya
name: Fayad, Adham
Publisher: name: Common Ground Research Networks
Year: 2024
Subjects: Green HR Practices
Affective Commitment
Green recovery performance
Transformational Leadership
PLS-SEM and fast food employees

description: Abstract: Environmental concerns are increasing and business firms are inclined towards adoption ofeco-friendly products and services. They are hiring employees via set of green HRM practices andstruggling to become an environmentally sustainable firm. Pakistani food industry is booming day by day.However, less is known about the green HRM practices executed in the fast food industry of Pakistan.Therefore, this research is interested in examining the impact of Green recruitment and selection, greentraining and development and green performance and compensation management on the P-O fit, affectivecommitment and green recovery performance in Pakistan’s fast food industry. The moderating effects oftransformational leadership will be examined between Green HRM practices and green recoveryperformance. A sample of 408 employees who are working at different designations were selected toaccomplish the purpose of the research. These managers will be selected through convenient samplingtechnique. There were 21 fast food restaurants (Burger Joints) selected from all over Karachi, few ofthem includes; KFC, Burger Lab, Burger O Clock, Vintage, Plan B and more. The collected primary datawill be tested through the application of structural equation modeling technique. Smart PLS software isused to assess the objectives. The results of the study revealed significant association between GreenR&S, Green T&D and P-O fit. A non-significant association is found between Green P& C and P-O Fit.The study affirmed that Affective commitment posit a direct influence on GRP. The Green R&S and GreenP&C revealed insignificant impacts on the green recovery performance within the fast food industry. Theindirect association was analyzed between P&C, P-O fit, AF and GRP and revealed an insignificantresult. Likewise, an indirect association is found between R/S, P-O Fit, AF and GRP. The futureresearchers are recommended to analysis the remaining elements of GHRM and investigate their impactson the fast food industry of Pakistan. There is a need to create awareness regarding green HRM practicesand their influence on the Green recovery performance in Pakistan. Policy makers are recommended todevelop such policies that promotes GHRM in Pakistan.
Η χρήση της τεχνολογίας κατανεμημένου καθολικού στις εφοδιαστικές αλυσίδες τροφίμων
Creators: name: Τσιγκούνης, Παναγιώτης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Εφοδιαστική αλυσίδα τροφίμων
subject: Ιχνηλασιμότητα
subject: Blockchain technology
subject: Συστήματα ιχνηλάτησης
subject: Barcode
subject: RFID
subject: Εξυπηρέτηση πελατών
subject: Ικανοποίηση πελάτη

description: Τα τελευταία χρόνια στο χώρο των τροφίμων παρουσιάζεται μια ιδιαίτερη αυξανόμενη ανησυχία των καταναλωτών σχετικά με την ποιότητα και την ασφάλεια των τροφίμων που αγοράζουν. Η αλυσίδα εφοδιασμού των τροφίμων προβλέπεται να παίξει κυρίαρχο ρόλο στην άμβλυνση της συγκεκριμένης ανησυχίας καθώς στόχο της αποτελεί η δυνατότητα ελέγχου σε όλα της τα στάδια των τροφίμων που προμηθεύει στην αγορά. Επομένως, για τη δημιουργία μιας αειφόρας αλυσίδας εφοδιασμού τροφίμων στο μέλλον, κύριο παράγοντα επιτυχίας θα αποτελέσει η ανάπτυξη νέων τεχνολογιών και η εφαρμογή αυτών σε όλο το μήκος της. Η παρούσα μεταπτυχιακή διπλωματική εργασία αποτελεί μια ενδελεχή επισκόπηση και κριτική ανάλυση της πρόσφατης ερευνητικής βιβλιογραφίας αναφορικά με τη χρήση της τεχνολογίας blockchain (κατανεμημένου καθολικού) στις εφοδιαστικές αλυσίδες τροφίμων. Αρχικώς περιγράφονται και αναλύονται χρήσιμοι ορισμοί και έννοιες που αναφέρονται στις εφοδιαστικές αλυσίδες τροφίμων, στην ιχνηλάτηση των προϊόντων καθώς και στη τεχνολογία του blockchain. Στη συνέχεια, αφού έχει προηγηθεί η βιβλιογραφική ανασκόπηση, εξετάζεται η εφαρμογή της τεχνολογίας blockchain σε μία εφοδιαστική αλυσίδα που διαχειρίζεται chips πατάτας με στόχο τη δυνατότητα ελέγχου του προϊόντος σε όλα τα στάδια της αλυσίδας εφοδιασμού.
THE EFFECT OF CONTRACTING ON PRICING DYNAMICS IN THE FED CATTLE MARKET: AN EXPERIMENTAL SIMULATION APPROACH
Creators: name: Lyford, Conrad P.
name: Hicks, R. Todd
name: Ward, Clement E.
name: Trapp, James N.
name: Peel, Derrell S.
name: Lyford, Conrad P.
name: Hicks, R. Todd
name: Ward, Clement E.
name: Trapp, James N.
name: Peel, Derrell S.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The increased amount of contracting in many agricultural markets continues to be a source of considerable controversy. Some research indicates that increased levels of contracting lead to better prices for processors/users while other research is inconclusive. This article uses an experimental economics approach to study the effects on prices of systematic variations in contracting levels using an experimental model of the fed cattle market. Using experimental economics allowed the control of contracting levels and other variables (e.g. supply levels) that are not possible using industry data. Pricing dynamics changed considerably with increased levels of contracting, but the mean price level was found to be not related to contracting levels. The response of price to a given supply was found to increase as contracting levels increase. In addition, price variability with high levels of contracting showed long periods with relatively little adjustments followed by short periods of abrupt changes.
A New Technique for Finding Needles in Haystacks: A Geometric Approach to Distinguishing Between a New Source and Random Fluctuations
Creators: name: Pilla, Ramani S.
name: Loader, Catherine
name: Taylor, Cyrus
Publisher: name: arXiv
Year: 2005
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a new test statistic based on a score process for determining the statistical significance of a putative signal that may be a small perturbation to a noisy experimental background. We derive the reference distribution for this score test statistic; it has an elegant geometrical interpretation as well as broad applicability. We illustrate the technique in the context of a model problem from high-energy particle physics. Monte Carlo experimental results confirm that the score test results in a significantly improved rate of signal detection.
description: 5 pages, 4 figures
AN ECONOMIC ANALYSIS OF THE RELATIONSHIP OF POVERTY AND INCOME INEQUALITY IN RURAL WEST VIRGINIA
Creators: name: De Sousa, Semoa C.B.
name: Gebremedhin, Tesfa G.
name: Smith, Dennis K.
name: Colyer, Dale
name: De Sousa, Semoa C.B.
name: Gebremedhin, Tesfa G.
name: Smith, Dennis K.
name: Colyer, Dale
Publisher: name: Unknown
Year: 2001
Subjects: Food Security and Poverty

description: Ordinary and two-stage least square regressions were used to examine the major determinants of poverty and income inequality with cross-sectional data of 38 rural counties of West Virginia. The empirical findings confirm the possibility of simultaneity between poverty and income inequality and poverty level is the main determinant of increased levels of income inequality. The proportions of population in welfare, population of age 65 or older, female-headed households, people unemployed, and the level of inequality contributed to increased poverty levels. The proportion of employment shares in finance, insurance and real estate, and per capita income contributed to reduced poverty levels. But, per capita income, the proportion of human capital stock, and the proportion of employment shares in manufacturing contributed to reduced income inequality.
title: INFLUENCE OF SIZE EFFECTS ON SURFACE GENERATION DURING FINISH MACHINING AND SURFACE INTEGRITY IN TI-6AL-4V
Creators: name: Brown, Ian
Publisher: name: University of Kentucky Libraries
Year: 2020
Subjects: subject: FOS: Mechanical engineering

description: Finish machining is an essential manufacturing process that is used to enhance the mechanical characteristics of critical components. The deformation that occurs at the tool and workpiece interface in finish machining significantly affects a host of component properties, commonly referred to as “surface integrity” properties. Surface roughness is a machining deformation-affected characteristic that is of high relevance in contemporary manufacturing. However, over recent decades it has been made clear that the material properties of the deformed surface layers are relevant to component performance as well. Predicting the overall surface quality of a machined component is of great relevance to the manufacturing industry.

Current state-of-the-art predictive models in the area of machining-induced surface integrity are typically founded in two-dimensional F.E.M. analysis. These investigations frequently show the advantages of tool geometry manipulation. However, most efforts focus solely on the prediction of two-dimensional surface integrity qualities such as those found in orthogonal machining. Indeed, most recent models largely ignore three-dimensional properties such as surface roughness, and do not incorporate three-dimensional machining parameters that are highly relevant to the surface integrity state of typical finished components. In light of these shortcomings, the nature of surface integrity in three-dimensional machining is explored, and a physics-based geometric model of surface generation is applied to some areas of surface integrity prediction.

The main focus of this work is to investigate and model the relationship between the more dominant parameters in finish turning (feed, nose radius, and edge geometry) and the surface generation phenomena that occur in the application of tools with varied geometries of this scope. The presented geometric model is derived from unique assumptions that allow for the close approximation of surface generation. The model is subsequently validated with experiments that utilize modified turning inserts of precise edge geometry, as well as pedigreed data from previous literature. Good agreement with experimental roughness results is obtained, thus verifying the validity of the surface generation assumptions. In addition, subsurface properties are found to correlate well with the geometry of ploughed areas predicted by the modeling methodology presented in this text.
description: © 2020 Ian S. Brown
Basic properties of an alternative flow equation in gravity theories
Creators: name: Lavrov, Peter M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Basic properties of alternative flow equation in Quantum Gravity are studied. It is shown that the alternative flow equation for effective two-particle irreducible effective action is gauge independent and does not depend on IR parameter $k$ on shell.
description: 13 pages, v2: published version
Δημοκρατία και διαφθορά
Creators: name: Μητρονάτσιος, Σπυρίδων
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Διαφθορά
subject: Δημοκρατία
subject: Οικονομική ανάπτυξη
subject: Κατά κεφαλήν ΑΕΠ
subject: Δείκτης αντίληψης διαφθοράς

description: Η παρούσα εργασία εξετάζει το θέμα της διαφθοράς στη σύγχρονη κοινωνία, λαμβάνοντας υπόψη πολιτικά και κοινωνικά φαινόμενα. Επίσης, εκτός από τον ορισμό του φαινομένου, καταγράφονται οι αιτίες της διαφθοράς καθώς και μορφές της ώστε να δομηθεί το κατάλληλο θεωρητικό υπόβαθρο. Στο ίδιο πλαίσιο παρουσιάζονται και δυο μελέτες περιπτώσεων. Εμβαθύνοντας την ανάλυση, διεξάγεται μια εμπειρική έρευνα μέσω ανάλυσης παλινδρόμησης, ώστε να διερευνηθεί αν η διαφθορά (μετρούμενη από το δείκτη αντίληψης της διαφθοράς) μπορεί να προβλεφθεί από δυο δείκτες, το κατά κεφαλήν ΑΕΠ και το σκορ δημοκρατίας. Τα αποτελέσματα της ανάλυσης παλινδρόμησης δείχνουν ότι ο συντελεστής του κατά κεφαλήν ΑΕΠ είναι θετικός, άρα αύξηση στο επίπεδο δημοκρατικής ανάπτυξης οδηγεί σε αύξηση του δείκτη αντίληψης διαφθοράς, και άρα μειώνει τα επίπεδα διαφθοράς. Επίσης, το σκορ δημοκρατίας έχει επίσης θετική σχέση με το δείκτη αντίληψης διαφθοράς. Για να εμβαθύνει η ανάλυση, εισάγεται και μια επεξηγηματική μεταβλητή, η οποία είναι το νομικό σύστημα της χώρας.
A TRANSACTION COST ECONOMICS AND PROPERTY RIGHTS THEORY APPROACH TO FARMLAND LEASE PREFERENCES
Creators: name: Moss, Leeann E.
name: Barry, Peter J.
name: Schnitkey, Gary D.
name: Westgren, Randall E.
name: Moss, Leeann E.
name: Barry, Peter J.
name: Schnitkey, Gary D.
name: Westgren, Randall E.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: Numerous theoretical approaches to farmland leasing contract choice have been developed with little consistent empirical support, particularly for the Corn Belt. A unique theoretical approach to explaining farmers' lease preferences is presented, using a combination of transaction cost economics and property rights theory. Results demonstrate that both transactional and certain producer characteristics are important motivators of contract choice.
Christliche Verantwortung in einer Welt des Unfriedens und der Spannung
Creators: name: Scheuner, Ulrich
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 18 Nr. 1 (1969): Ökumenische Rundschau, Band 18, Heft 1
Measurement of the Pion and Photon Light-Cone Wave Functions by Diffractive Dissociation
Creators: name: Ashery, Daniel
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The measurement of the pion light-cone wave function is revisited and results for the Gegenbauer coefficients are presented. Mesurements of the photon electromagnetic and hadronic wave functions are described and results are presented.
description: Talk given at the 11th International conference on Elastic and diffractive Scattering (Blois May 2005)
title: Metabolic dyshomeostasis by organophosphate insecticides
title: insights from experimental and human studies
titleType: AlternativeTitle
Creators: name: Joshi, Apurva Kumar Ramesh
name: Sukumaran, Bindhu Omana
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: 610

description: EXCLI Journal;Vol. 18 2019
FRUIT CONSUMPTION: DIETARY HEALTH AND POLICY IMPLICATIONS
Creators: name: Padilla, Luis
name: Padilla, Luis
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: Health benefits of a diet rich in fruit and vegetables has been emphasized in the U.S. However, consumption of fruits more than for vegetables has remained well below recommended amounts. Efforts to influence eating habits will be enhanced if socio-demographic factors and the nature of their interaction are better understood. This study uses logistic regression to determine the role of age, sex, race and place of residency to investigate this question. The analysis identifies that sex, social class and place of residence influence optimal fruit consumption. Particularly, this study finds that young adult males of modest means living in rural areas are less likely to incorporate the recommended amount of fruit in their diet.
title: Ταξινόμηση βίντεο με αναδρομικά νευρωνικά δίκτυα
title: Video classification with recurrent neural networks
titleType: AlternativeTitle
Creators: name: Χονδροματίδου, Λεωνιδίτσα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2019
Subjects: subject: LSTM
subject: Αναδρομικά νευρωνικά δίκτυα
subject: Νευρωνικά δίκτυα
subject: Classification
subject: Ταξινόμηση
subject: Pose estimation
subject: Video classification

description: Το παρόν έργο έχει ως στόχο να διεξάγει ταξινόμηση βίντεο, εκπαιδεύοντας ένα δίκτυο αποτελούμενο από στοιβαγμένες (stacked) LSTM μονάδες, έτσι ώστε να αναγνωρίζει το άθλημα που εμπεριέχεται σε ένα υποσύνολο των βίντεο του Sports-1M Dataset. Η συνεισφορά αυτής της εργασίας είναι ότι σε αντίθεση με τις παραδοσιακές μεθόδους ταξινόμησης βίντεο, όπου τροφοδοτούμε το δίκτυο με καρέ-εικόνες, εδώ χρησιμοποιούμε την βιβλιοθήκη του Carnegie Mellon OpenPose, με σκοπό να αποσπάσουμε τα ανατομικά σημεία των ανθρώπων (στάση σώματος) από έναν προκαθορισμένο αριθμό διαδοχικών καρέ, ως μεταβλητές εισόδου του δικτύου. Η κύρια πρόκληση αυτού του εγχειρήματος είναι ότι το Sports-1M Dataset έχει δημιουργηθεί με αυτοματοποιημένο τρόπο και η λήψη των βίντεο έχει γίνει από απλούς χρήστες, με αποτέλεσμα αυτά να περιέχουν θόρυβο. Ο θόρυβος προκύπτει είτε από μη σχετικά βίντεο που έχουν επιλεχθεί λανθασμένα από το σύστημα παρατηρήσεων του YouTube, είτε από χρήστες που δεν επικεντρώνονται στο άθλημα που λαμβάνει χώρα και σε ανύποπτο χρόνο κάνουν ζουμ στο κοινό, πρόσωπο του αθλητή, περιβάλλον χώρο κλπ. Ταυτόχρονα, το παρόν σύνολο δεδομένων, εκτός από τις καθιερωμένες δυσκολίες που παρουσιάζει ως σύνολο ελεύθερων βίντεο (όπως η έκθεση σε διαφορετικούς φωτισμούς, κλίμακες, μη σταθερή κάμερα, σκοπιές κλπ) έχει και μεγάλες αποκλίσεις ως προς την διάρκεια και ανάλυση των βίντεο. Η προσέγγιση που ακολουθήθηκε για την επίλυση των παραπάνω, ήταν για κάθε βίντεο να οριστεί ένα σταθερό παράθυρο τριάντα (30) καρέ προς εξαγωγή (2 καρέ ανά δευτερόλεπτο - δηλαδή 15 δευτερόλεπτα βίντεο συνολικά), ξεκινώντας από το 30% του βίντεο, με σκοπό να αυξηθεί η πιθανότητα να πετύχει το άθλημα όταν αυτό εκτελείται. Επιπρόσθετα, για να τεθεί υπό έλεγχο η ποσότητα και ποιότητα των ανθρώπων (ανατομικών σημείων) που βρέθηκαν στο κάθε καρέ, οι άνθρωποι φιλτράρονται από έναν δείκτη ενδιαφέροντος, που ποσοτικοποιεί το πόσο μεγάλοι σε μέγεθος, ολόκληροι και κεντραρισμένοι είναι σε σχέση με κάθε άλλο άτομο στο καρέ. Το παραπάνω χρησιμοποιείται ως κανόνας για να επιλέξει τους δύο (2) πιο ενδιαφέροντες/σχετικούς ανθρώπους. Κλείνοντας, ύστερα από αναζήτηση των παραμέτρων εκείνων που βελτιστοποιούν το εν λόγω δίκτυο, αυτό ήταν σε θέση να παράξει αποτέλεσμα ακρίβειας (accuracy) 89% για 5 κατηγορίες αθλημάτων και 73% με 10. Το δίκτυο αυτό απαρτιζόταν από 2 στοιβαγμένες LSTM μονάδες, με βάθος 64 και 32 κρυμμένων μονάδων αντίστοιχα και ρυθμιστές (regularizers) L1, L2 σε κάθε επίπεδο. Τέλος, η κατηγοριοποίηση ολοκληρώθηκε από ένα πυκνά συνδεδεμένο νευρωνικό δίκτυο με τόσες μονάδες όσες ήταν και οι αντίστοιχες κατηγορίες αθλημάτων.