cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
OPTIMAL CAPITAL STRUCTURE AND INCOME SUPPORT REFORM UNCERTAINTY
Creators: name: Lagerkvist, Carl Johan
name: Olson, Kent D.
name: Lagerkvist, Carl Johan
name: Olson, Kent D.
Publisher: name: Unknown
Year: 2002
Subjects: Financial Economics

description: This paper investigates the extent to which an active agricultural policy directed to the return and/or the variability of return in farming that is understood and anticipated, where the political process creates parameter uncertainty and noise about the precise timing of reform, influences the capital structure at the farm level. Closed for solutions for the implied restructuring prior to the reform is derived. The empirical analyses the policy induced incentives for debt levels adjustment that may have prevailed prior to and after the 1996 Farm Bill. The empirical analysis strongly supports the theoretical analysis.
Infusing Finetuning with Semantic Dependencies
Creators: name: Wu, Zhaofeng
name: Peng, Hao
name: Smith, Noah A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: For natural language processing systems, two kinds of evidence support the use of text representations from neural language models "pretrained" on large unannotated corpora: performance on application-inspired benchmarks (Peters et al., 2018, inter alia), and the emergence of syntactic abstractions in those representations (Tenney et al., 2019, inter alia). On the other hand, the lack of grounded supervision calls into question how well these representations can ever capture meaning (Bender and Koller, 2020). We apply novel probes to recent language models -- specifically focusing on predicate-argument structure as operationalized by semantic dependencies (Ivanova et al., 2012) -- and find that, unlike syntax, semantics is not brought to the surface by today's pretrained models. We then use convolutional graph encoders to explicitly incorporate semantic parses into task-specific finetuning, yielding benefits to natural language understanding (NLU) tasks in the GLUE benchmark. This approach demonstrates the potential for general-purpose (rather than task-specific) linguistic supervision, above and beyond conventional pretraining and finetuning. Several diagnostics help to localize the benefits of our approach.
description: TACL 2021
Reanalysis the pentaquark $Θ^+(1540)$ in the framework of QCD sum rules approach with direct instantons
Creators: name: Wang, Zhi-Gang
name: Yang, Wei-Min
name: Wan, Shao-Long
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we study the pentaquark state $ Θ^+(1540)$ with a (scalar)diquark-(pseudoscalar)diquark-antiquark type interpolating current in the framework of the QCD sum rules approach by including the contributions from the direct instantons. The numerical results indicate that the contributions from the direct instantons are very small and can be safely neglected.
description: 10 pages, fifth version, add discussions
Fourth Painlevé and Ermakov equations: quantum invariants and new exactly-solvable time-dependent Hamiltonians
Creators: name: Zelaya, Kevin
name: Marquette, Ian
name: Hussin, Véronique
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work, we introduce a new realization of exactly-solvable time-dependent Hamiltonians based on the solutions of the fourth Painlevé and the Ermakov equations. The latter is achieved by introducing a shape-invariant condition between an unknown quantum invariant and a set of third-order intertwining operators with time-dependent coefficients. The new quantum invariant is constructed by adding a deformation term to the well-known parametric oscillator invariant. Such a deformation depends explicitly on time through the solutions of the Ermakov equation, which ensures the regularity of the new time-dependent potential of the Hamiltonian at each time. On the other hand, with the aid of the proper reparametrization, the fourth Painlevé equation appears, the parameters of which dictate the spectral behavior of the quantum invariant. In particular, the eigenfunctions of the third-order ladder operators lead to several sequences of solutions to the Schrödinger equation, determined in terms of the solutions of a Riccati equation, Okamoto polynomials, or nonlinear bound states of the derivative nonlinear Schrödinger equation. Remarkably, it is noticed that the solutions in terms of the nonlinear bound states lead to a quantum invariant with equidistant eigenvalues, which contains both an (N+1)-dimensional and an infinite sequence of eigenfunctions. The resulting family of time-dependent Hamiltonians is such that, to the authors' knowledge, have been unnoticed in the literature of stationary and nonstationary systems.
MEASURING FOOD MANUFACTURING PRODUCTIVITY: GROSS- OR NET-OUTPUT APPROACH?
Creators: name: Huang, Kuo S.
name: Huang, Kuo S.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agribusiness
subject: Productivity Analysis
subject: Food manufacturing
subject: multifactor productivity
subject: labor productivity

description: The measured multifactor productivity index of the value of shipments shows a trend of declining and then moving up and down along the level of the base year 1975. The influence of technological changes to the output growth is rather limited. The measured labor productivity index of the value-added exhibits a trend of steady increase over years. The contribution of the food-manufacturing sector to the growth of GDP increased during 1975-97.
Rotating compact star with superconducting quark matter
Creators: name: Panda, P. K.
name: Nataraj, H. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A compact star with superconducting quark core, the hadron crust and the mixed phase between the two is considered. The quark meson coupling model for hadron matter and the color flavor locked quark model for quark matter is used in order to construct the equation of state for the compact star. The effect of pairing of quarks in the color flavor locked phase and the mixed phase on the mass, radius, and period of the rotating star is studied.
description: 11 pages, 5 figures
Το στρατηγικό μάνατζμεντ ως μοχλός ανάπτυξης της διοίκησης ολικής ποιότητας: μελέτη περίπτωσης
Creators: name: Κίτσης, Βασίλειος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2019
Subjects: subject: Στρατηγικό μάνατζμεντ
subject: Διοίκηση oλικής ποιότητας
subject: Ανταγωνιστικό πλεονέκτημα
subject: Φαρμακευτικός κλάδος

description: Τα τελευταία χρόνια το ενδιαφέρον στον χώρο λειτουργίας των επιχειρήσεων εστιάζεται στην επιδίωξη της βιώσιμης λειτουργίας των επιχειρήσεων. Αναγνωρίζοντας τις τεράστιες προκλήσεις για την αειφόρο λειτουργία των επιχειρήσεων, θεωρείται πλέον σημαντική η υιοθέτηση βιώσιμων πρακτικών, που μπορούν να ανταποκριθούν στις προκλήσεις και τις ανάγκες της εποχής μας. Στο πλαίσιο αυτό δίνεται έμφαση στην προώθηση του στρατηγικού μάνατζμεντ, καθώς θεωρείται ότι η εφαρμογή των βασικών αρχών του αποτελεί προϋπόθεση, για να μπορέσουν οι σύγχρονες επιχειρήσεις να ανταποκριθούν στις απαιτήσεις του διαρκώς μεταβαλλόμενου περιβάλλοντος. Με βάση τη στρατηγική, που καλούνται να ακολουθήσουν οι επιχειρήσεις, θεωρείται σημαντική η υιοθέτηση των βασικών αρχών της ποιότητας, η οποία βασίζεται στη δέσμευση και τη συμμετοχή της διοίκησης, στον προσδιορισμό των νομοθετικών απαιτήσεων, στις απαιτήσεις των ενδιαφερόμενων μερών (stakeholders), καθώς και στην ενίσχυση της εμπιστοσύνης και της εμπλοκής του προσωπικού. Οι έννοιες της συνολικής ποιότητας και της συνολικής διαχείρισης της ποιότητας χρησιμοποιούνται σε γενικές γραμμές αδιακρίτως με τη στρατηγική της ποιότητας. Είναι σαφές, επίσης, ότι πλέον η παγκόσμια αγορά αποτελεί έναν ανταγωνιστικό και διαρκώς μεταβαλλόμενο χώρο, όπου τόσο η καινοτομία όσο και η ποιότητα διαδραματίζουν σημαντικό ρόλο για τη βιώσιμη λειτουργία των επιχειρήσεων και μπορεί να ενισχύσει το ανταγωνιστικό τους πλεονέκτημα και να συμβάλει στη βιώσιμη ανάπτυξη της. Κατανοώντας, λοιπόν, τον ρόλο της στρατηγικής και του ρόλου της ποιότητας μέσω της υιοθέτησης των βασικών αρχών της Διοίκησης Ολικής Ποιότητας, επιλέχτηκε να υλοποιηθεί η συγκεκριμένη εργασία, εστιάζοντας το ενδιαφέρον στη διερεύνηση και παράλληλα στην αξιολόγηση του ρόλου τους στη λειτουργία των επιχειρήσεων, που δραστηριοποιούνται στον φαρμακευτικό κλάδο. Αξιοποιώντας τη μελέτη περίπτωσης, στην εργασία αυτή δόθηκε η δυνατότητα κατανόησης της σημασίας του στρατηγικού μάνατζμεντ στην ενίσχυση του ανταγωνιστικού πλεονεκτήματος της φαρμακευτικής εταιρείας Genesis Pharma.
Multiprocess parallel antithetic coupling for backward and forward Markov Chain Monte Carlo
Creators: name: Craiu, Radu V.
name: Meng, Xiao-Li
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M05, 62F15 (Primary)

description: Antithetic coupling is a general stratification strategy for reducing Monte Carlo variance without increasing the simulation size. The use of the antithetic principle in the Monte Carlo literature typically employs two strata via antithetic quantile coupling. We demonstrate here that further stratification, obtained by using k>2 (e.g., k=3-10) antithetically coupled variates, can offer substantial additional gain in Monte Carlo efficiency, in terms of both variance and bias. The reason for reduced bias is that antithetically coupled chains can provide a more dispersed search of the state space than multiple independent chains. The emerging area of perfect simulation provides a perfect setting for implementing the k-process parallel antithetic coupling for MCMC because, without antithetic coupling, this class of methods delivers genuine independent draws. Furthermore, antithetic backward coupling provides a very convenient theoretical tool for investigating antithetic forward coupling. However, the generation of k>2 antithetic variates that are negatively associated, that is, they preserve negative correlation under monotone transformations, and extremely antithetic, that is, they are as negatively correlated as possible, is more complicated compared to the case with k=2. In this paper, we establish a theoretical framework for investigating such issues. Among the generating methods that we compare, Latin hypercube sampling and its iterative extension appear to be general-purpose choices, making another direct link between Monte Carlo and quasi Monte Carlo.
description: Published at http://dx.doi.org/10.1214/009053604000001075 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
FRACTAL GEOMETRY IN AGRICULTURAL CASH PRICE DYNAMICS
Creators: name: Jin, Hyun Joung
name: Frechette, Darren L.
name: Jin, Hyun Joung
name: Frechette, Darren L.
Publisher: name: Unknown
Year: 2002
Subjects: Demand and Price Analysis

description: Agricultural prices are determined by natural and socio-economic factors that are known to be self-similar at different time scales and to follow non-periodic cyclical patterns. These properties are most easily understood using Mandelbrot's fractal geometry, in which a jagged time series is treated as a jagged coastline or any other natural phenomenon. The fractal market hypothesis provides the theory needed to explain why fractal structure exists in agricultural prices. Empirical evidence confirms theoretical predictions.
Special Relativity and its Newtonian Limit from a Group Theoretical Perspective
Creators: name: Kong, Otto C. W.
name: Payne, Jason
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In this pedagogical article, we explore a powerful language for describing the notion of spacetime and particle dynamics intrinsic to a given fundamental physical theory, focusing on special relativity and its Newtonian limit. The starting point of the formulation is the representations of the relativity symmetries. Moreover, that seriously furnishes -- via the notion of symmetry contractions -- a natural way in which one can understand how the Newtonian theory arises as an approximation to Einstein's theory. We begin with the Poincaré symmetry underlying special relativity and the nature of Minkowski spacetime as a coset representation space of the algebra and the group. Then, we proceed to the parallel for the phase space of a spin zero particle, in relation to which we present the full scheme for its dynamics under the Hamiltonian formulation, illustrating that as essentially the symmetry feature of the phase space geometry. Lastly, the reduction of all that to the Newtonian theory as an approximation with its space-time, phase space, and dynamics under the appropriate relativity symmetry contraction is presented. While all notions involved are well established, the systematic presentation of that story as one coherent picture fills a gap in the literature on the subject matter.
description: proof-corrected final version: 31 latex pages, no figure
Διαφορετικοί τύποι και συμπεριφορές ηγεσίας για την επίτευξη υψηλής απόδοσης
Creators: name: Aρμένης, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Ηγετικά στυλ

description: Η παρούσα διπλωματική περιγράφει τα ηγετικά στυλ που υπάρχουν, αρχικά αναλύοντας τα θετικά και αρνητικά του κάθε στυλ και έπειτα πώς αυτά επηρεάζουν την παραγωγικότητα με σκοπό να καταλήξουμε στο κυρίαρχο στυλ προς ανάλυση που είναι το μετασχηματιστικό ή αλλίως μεταμορφωτικό στυλ ηγεσίας. Στο 3 κεφάλαιο γίνεται ένα case study για τον Elon Musk, ο οποίος φημίζεται για το μεταμορφωτικό του στυλ, στην συνέχεια ακολουθεί ανάλυση του case study και τέλος κλείνουμε με τα συμπεράσματα και τις προτάσεις μας για το ποιό τελικά είναι το καλύτερο στυλ ηγεσίας.
A Novel RF-assisted-Strobe System for Unobtrusive Vibration Detection of Machine Parts
Creators: name: Roy, Dibyendu
name: Sinharay, Arijit
name: Bhowmick, Brojeshwar
name: Rakshit, Raj
name: Chakravarty, Tapas
name: Pal, Arpan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we propose a novel non-contact vibration measurement system that is competent in estimating linear and/or rotational motions of machine parts. The technique combines microwave radar, standard camera, and optical strobe to capture vibrational or rotational motions in a relatively fast and affordable manner when compared to the current technologies. In particular, the proposed technique is capable of not only measuring common vibrational parameters (e.g. frequency, motor rpm, etc.) but also provides spatial information of the vibrational sources so that the origin of each vibrational point can be identified accurately. Furthermore, it can also capture the wobbling motion of the rotating shafts. Thus, the proposed method can find immense applications in preventive maintenance across various industries where heavy machinery needs to be monitored unobtrusively or there is a requirement for non-contact multi-point vibration measurement for any machine inspection applications.
GREEN PAYMENTS AND DUAL POLICY GOALS
Creators: name: Feng, Hongli
name: Feng, Hongli
Publisher: name: Unknown
Year: 2002
Subjects: Environmental Economics and Policy

description: This paper analyzes the efficient design of green payments. Green payments can generate environmental benefits and support farmers' income. We extend a standard adverse selection model by incorporating dual policy goals into the design of green payments: conservation and income support. We also introduce heterogeneity into conservation efficiency type. The results of our dual-goal model and the standard adverse selection model are significantly different. The differences arise from two aspects. First, since farmers may receive green payments for conservation, or income support, or both, the incentive structure in the standard adverse selection model can be significantly altered. Second, information rent is no longer just a cost to induce truthful revelation, it also acts as income support if it goes to farmers whose income support is valued by policymakers. These two differences have important implications for the design of green payments.
THE HAZARD OF CLIENT EXIT IN MICROFINANCE
Creators: name: Pagura, Maria E.
name: Pagura, Maria E.
Publisher: name: Unknown
Year: 2002
Subjects: Financial Economics

description: In this study it is shown that group lending is not always effective in dealing with the information and enforcement issues associated with financial intermediation, In particular, by transferring all screening responsibilities onto borrowers, efficiency is lost in the intermediation process, creating poor quality matches between borrowers and loan contracts. This results in high client exit. This phenomenon is especially exaggerated in environments in which group lending based on joint liability is a new lending technology in the financial market. Drawing upon theories of job matching and technology adoption, client exit is described in a choice theoretic framework. Basically, when faced with a decision of staying or exiting, a client compares her expected benefits of borrowing to her expected costs. She exits when the costs of borrowing are greater than the benefits of borrowing. Interesting exit/stay outcomes arise when joint liability is modeled into the choice. Using a hazard model, we show that different borrower/firms exhibit differences in duration dependence.
Διερεύνηση και συγκριτική ανάλυση ρυθμιστικών πλαισίων ευελιξίας ζήτησης ηλεκτρικής ενέργειας και προώθησης της ηλεκτροκίνησης στην Ευρώπη
Creators: name: Λύτρα, Χρυσούλα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Ενεργειακή μετάβαση
subject: ΑΠΕ
subject: Απόκριση στη ζήτηση
subject: Ηλεκτροκίνηση

description: H κλιματική αλλαγή, η ατμοσφαιρική ρύπανση και η εξάντληση των ορυκτών καυσίμων έχουν οδηγήσει στην ανάγκη για μετάβαση σε ένα ενεργειακό σύστημα που θα βασίζεται στις Ανανεώσιμες Πηγές Ενέργειας (ΑΠΕ). Ωστόσο, η μεταβλητότητα των ΑΠΕ θέτει σοβαρές προκλήσεις για την εξισορρόπηση της προσφοράς και της ζήτησης ηλεκτρικής ενέργειας στο δίκτυο, δημιουργώντας την ανάγκη για την εφαρμογή νέων μηχανισμών διαχείρισης της ζήτησης. Παράλληλα, η υψηλή διείσδυση των ΑΠΕ εγκυμονεί τον κίνδυνο αύξησης του κόστους προμήθειας ηλεκτρικής ενέργειας για τις κοινωνικά ευαίσθητες ομάδες που αδυνατούν να ακολουθήσουν τα νέα μοντέλα διαχείρισης της ζήτησης. Για την αντιμετώπιση τόσο των τεχνικών όσο και των κοινωνικοοικονομικών περιορισμών που εγείρονται, έχουν αναπτυχθεί διάφορα επιχειρηματικά μοντέλα και εργαλεία. Στην παρούσα διπλωματική εργασία διερευνάται η δυναμική της ευελιξίας ζήτησης και της ηλεκτροκίνησης, στη μείωση των αρνητικών επιπτώσεων και την ισοκατανομή των οφελών της μετάβασης σε ένα ενεργειακό σύστημα στηριζόμενο σε ΑΠΕ. Παρουσιάζονται οι διαφορετικές εφαρμογές αυτών των δύο εργαλείων διαχείρισης της ζήτησης και εξετάζονται ως προς τα οφέλη που προσφέρουν, τους περιορισμούς που προκύπτουν κατά την εφαρμογή τους και τους τρόπους που αυτοί δύνανται να ξεπεραστούν. Επιπλέον, γίνεται ανασκόπηση των Ευρωπαϊκών Οδηγιών που έχουν ωθήσει τις ευρωπαϊκές χώρες στην ενσωμάτωση τέτοιου είδους εφαρμογών στα εθνικά τους ρυθμιστικά πλαίσια, ενώ αξιολογείται μεμονωμένα για την κάθε χώρα το σε τι βαθμό αυτό έχει επιτευχθεί. Συγκεκριμένα παρουσιάζονται τα ρυθμιστικά πλαίσια που εφαρμόζονται στην παρούσα φάση σε 17 ευρωπαϊκές χώρες, συμπεριλαμβανομένης και της Ελλάδας, και γίνεται μια συγκριτική σύνοψη αυτών. Από αυτή τη σύνοψη εξάγονται συμπεράσματα για το ποιες εφαρμογές ευελιξίας ζήτησης και ποια μέτρα προώθησής της ηλεκτροκίνησης παρατηρούνται πιο συχνά ανά την Ευρώπη, αλλά και για το ποιες χώρες έχουν καταφέρει να τα ενσωματώσουν στο ενεργειακό τους σύστημα σε μεγαλύτερο βαθμό.
Influence of the processing parameters on the fiber-matrix-interphase in short glass fiber reinforced thermoplastics
Creators: name: Sambale, Anna Katharina
name: Schöneich, Marc
name: Stommel, Markus
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Polymer-matrix composites
subject: Interphase
subject: Nano-scratch
subject: mechanical testing
subject: Injection molding
subject: Short glass fiber composites
subject: 620
subject: 670
subject: Polymermatrix-Verbundwerkstoff
subject: Mechanische Prüfung
subject: Spritzgießen
subject: Glasfaser

description: The interphase in short fiber thermoplastic composites is defined as a three-dimensional, several hundred nanometers-wide boundary region at the interface of fibers and the polymer matrix, exhibiting altered mechanical properties. This region is of key importance in the context of fiber-matrix adhesion and the associated mechanical strength of the composite material. An interphase formation is caused by morphological, as well as thermomechanical processes during cooling of the plastic melt close to the glass fibers. In this study, significant injection molding processing parameters are varied in order to investigate the influence on the formation of an interphase and the resulting mechanical properties of the composite. The geometry of the interphase is determined using nano-tribological techniques. In addition, the influence of the glass fiber sizing on the geometry of the interphase is examined. Tensile tests are used in order to determine the resulting mechanical properties of the produced short fiber composites. It is shown that the interphase width depends on the processing conditions and can be linked to the mechanical properties of the short fiber composite.
description: Polymers;Vol 9, 2017, (6), p. 221
Collapse vs. blow up and global existence in the generalized Constantin-Lax-Majda equation
Creators: name: Lushnikov, Pavel M.
name: Silantyev, Denis A.
name: Siegel, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The question of finite time singularity formation vs. global existence for solutions to the generalized Constantin-Lax-Majda equation is studied, with particular emphasis on the influence of a parameter $a$ which controls the strength of advection. For solutions on the infinite domain we find a new critical value $a_c=0.6890665337007457\ldots$ below which there is finite time singularity formation % if we write a=a_c=0.6890665337007457\ldots here then \ldots doesn't fit into the line that has a form of self-similar collapse, with the spatial extent of blow-up shrinking to zero. We find a new exact analytical collapsing solution at $a=1/2$ as well as prove the existence of a leading order complex singularity for general values of $a$ in the analytical continuation of the solution from the real spatial coordinate into the complex plane. This singularity controls the leading order behaviour of the collapsing solution. For $a_c
description: 49 pages, 29 figures
Amorphous-amorphous phase separation in API/polymer formulations
Creators: name: Luebbert, Christian
name: Huxoll, Fabian
name: Sadowski, Gabriele
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Poorly water-soluble drug
subject: Amorphous solid dispersion
subject: PLGA
subject: Thermodynamic model
subject: Phase behavior
subject: Amorphous-amorphous phase separation
subject: 660

description: The long-term stability of pharmaceutical formulations of poorly-soluble drugs in polymers determines their bioavailability and therapeutic applicability. However, these formulations do not only often tend to crystallize during storage, but also tend to undergo unwanted amorphous-amorphous phase separations (APS). Whereas the crystallization behavior of APIs in polymers has been measured and modeled during the last years, the APS phenomenon is still poorly understood. In this study, the crystallization behavior, APS, and glass-transition temperatures formulations of ibuprofen and felodipine in polymeric PLGA excipients exhibiting different ratios of lactic acid and glycolic acid monomers in the PLGA chain were investigated by means of hot-stage microscopy and DSC. APS and recrystallization was observed in ibuprofen/PLGA formulations, while only recrystallization occurred in felodipine/PLGA formulations. Based on a successful modeling of the crystallization behavior using the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT), the occurrence of APS was predicted in agreement with experimental findings.
description: Molecules;22(2)
Συγκρούσεις στον εργασιακό χώρο. Τρεις μελέτες περίπτωσης δημιουργίας και διαχείρισης σύγκρουσης
Creators: name: Δημητρόπουλος, Φίλιππος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Διαχείριση συγκρούσεων
subject: Οργανωσιακή συμπεριφορά
subject: Conflict management
subject: Teams
subject: Ομάδες
subject: Organizational behavior

description: Στην παρούσα εργασία θα διερευνήσουμε τις συγκρούσεις οι οποίες προκύπτουν στον εργασιακό χώρο. Οι συγκρούσεις είναι σύμφυτες με τη λειτουργία του οργανισμού και επηρεάζουν είτε θετικά είτε αρνητικά τα μέλη των τμημάτων. Καθημερινά σπαταλούνται πολλές εργατοώρες προκειμένου τα μέλη να επιλύσουν την όποια σύγκρουση δημιουργείται. Συνεπώς, θεωρούμε πως είναι απαραίτητο να διερευνηθεί η αιτία δημιουργίας μιας σύγκρουσης, η εξέλιξή της, και η διαχείρισή της.
Exosomal microRNA-23a-3p contributes to the progression of cholangiocarcinoma by interaction with Dynamin3
Creators: name: Ni, Qingfeng
name: Zhang, Hai
name: Shi, Xiaoli
name: Li, Xiangcheng
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Cholangiocarcinoma (abbreviated as CCA) accounts for about 3% of digestive tract tumors, which is a rare disease with relatively low incidence. Herein, we firstly discovered overexpression of microRNA-23a-3p (abbreviated as miR-23a-3p) in CCA tissues, as well as cell lines via bioinformatics prediction. Next, by conducting miR-23a-3p knockdown system in HUCCT1 cells and miR-23a-3p overexpression system in RBE cells, we investigated the biological effects of miR-23a-3p. Based on our findings, inhibition of miR-23a-3p was able to prevent cancer cell proliferation via colony formation, CCK-8, as well as EdU assays. Moreover, invasion as well as migration abilities of cells was examined by transwell assay and wound healing test. Animal study further verified that knockdown miR-23a-3p slowed down tumor growth and lung metastasis. In addition, we identified cholangiocarcinoma cells transferred miR-23a-3p through exosomes by a series of assays. Functional experiments have confirmed that exosomal miR-23a-3p could benefit for cancer cell growth and metastasis, serving as a cancer promoting gene. Furthermore, we found Dynamin3 (abbreviated as DNM3) turned out to be a target of miR-23a-3p, while DNM3 was down-regulated in cholangiocarcinoma. Knockdown DNM3 accelerated cancer cell development. Collectively, our findings firstly pointed out that exosomal miR-23a-3p was conducive to the progression of cholangiocarcinoma by interaction with DNM3, which provided potential evidence for cancer treatment.
AN ANALYTICAL AND EMPIRICAL ANALYSIS OF THE PRIVATE BIOTECH R&D INCENTIVES
Creators: name: Malla, Stavroula
name: Gray, Richard S.
name: Malla, Stavroula
name: Gray, Richard S.
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: The study examines the incentives and incidence of private R&D investment in the today's biotech industry. A three-stage search/imperfect competition model is developed to derive the optimal pricing and investment decisions of private firms and to develop conjectures about how these decisions are affected by exogenous factors. The analysis shows that basic public research "crowds in" applied private research while applied public research "crowds out" applied private research. The current technology level and the cost of the experimentation negatively affect private investment, while the price of the final product positively affects the private investment. Moreover, the greater the product heterogeneity, the higher the price charged with the same amount of R&D. Finally, the increase in IPR's and the firm's market size has a positive effect on the private firm's amount of R&D investment. These conjectures are tested empirically using data from the Canola research industry. The results of the empirical analysis strongly support the results derived from the theoretical model.
Optimized 4,5-diarylimidazoles as potent/selective inhibitors of protein kinase CK1δ and their structural relation to p38α MAPK
Creators: name: Halekotte, Jakob
name: Witt, Lydia
name: Ianes, Chiara
name: Krüger, Marc
name: Bührmann, Mike
name: Rauh, Daniel
name: Pichlo, Christian
name: Brunstein, Elena
name: Luxenburger, Andreas
name: Baumann, Ulrich
name: Knippschild, Uwe
name: Bischof, Joachim
name: Peifer, Christian
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Protein kinase CK1
subject: Formerly known as casein kinase 1
subject: p38 MAPK
subject: Kinase inhibitors
subject: 4,5-diaryl-imidazoles
subject: Alzheimer's disease
subject: Amyotrophic lateral sclerosis
subject: Familial advanced sleep phase syndrome
subject: Cancer
subject: 570
subject: 540

description: The involvement of protein kinase CK1δ in the pathogenesis of severe disorders such as Alzheimer’s disease, amyotrophic lateral sclerosis, familial advanced sleep phase syndrome, and cancer has dramatically increased interest in the development of effective small molecule inhibitors for both therapeutic application and basic research. Unfortunately, the design of CK1 isoform-specific compounds has proved to be highly complicated due to the existence of six evolutionarily conserved human CK1 members that possess similar, different, or even opposite physiological and pathophysiological implications. Consequently, only few potent and selective CK1δ inhibitors have been reported so far and structurally divergent approaches are urgently needed in order to establish SAR that might enable complete discrimination of CK1 isoforms and related p38α MAPK. In this study we report on design and characterization of optimized 4,5-diarylimidazoles as highly effective ATP-competitive inhibitors of CK1δ with compounds 11b (IC50 CK1δ = 4 nM, IC50 CK1ε = 25 nM), 12a (IC50 CK1δ = 19 nM, IC50 CK1ε = 227 nM), and 16b (IC50 CK1δ = 8 nM, IC50 CK1ε = 81 nM) being among the most potent CK1δ-targeting agents published to date. Inhibitor compound 11b, displaying potential as a pharmacological tool, has further been profiled over a panel of 321 protein kinases exhibiting high selectivity. Cellular efficacy has been evaluated in human pancreatic cancer cell lines Colo357 (EC50 = 3.5 µM) and Panc89 (EC50 = 1.5 µM). SAR is substantiated by X-ray crystallographic analysis of 16b in CK1δ and 11b in p38α.
description: Molecules;22(4)
SINFONI's take on Star Formation, Molecular Gas, and Black Hole Masses in AGN
Creators: name: Davies, R.
name: Genzel, R.
name: Tacconi, L.
name: Sanchez, F. Muller
name: Thomas, J.
name: Friedrich, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present some preliminary (half-way) results on our adaptive optics spectroscopic survey of AGN at spatial scales down to 0.085arcsec. Most of the data were obtained with SINFONI which provides integral field capability at a spectral resolution of R~4000. The themes on which we focus in this contribution are: star formation around the AGN, the properties of the molecular gas and its relation to the torus, and the mass of the black hole.
description: 5 pages, 2 figures. To appear in Science Perspectives for 3D Spectroscopy. ESO Astrophysics Symposia. Ed by M. Kissler-Patig, M. Roth and J. Walsh
WHAT CAN A KANSAS FARMER AFFORD TO PAY TO RENT CROPLAND?
Creators: name: Mills, Jeffrey B.
name: Burton, Robert O.
name: Dhuyvetter, Kevin C.
name: Kastens, Terry L.
name: Mills, Jeffrey B.
name: Burton, Robert O.
name: Dhuyvetter, Kevin C.
name: Kastens, Terry L.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: Five years of continuous annual data are used to measure the marginal value product of cropland (return to land) on approximately 100 Kansas farms. Determinants of the marginal value product are investigated using regression.
Thermodynamics of an ideal generalized gas:II Means of order $α$
Creators: name: Lavenda, B. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The property that power means are monotonically increasing functions of their order is shown to be the basis of the second laws not only for processes involving heat conduction but also for processes involving deformations. In an $L$-potentail equilibration the final state will be one of maximum entropy, while in an entropy equilibrium the final state will be one of minimum $L$. A metric space is connected with the power means, and the distance between means of different order is related to the Carnot efficiency. In the ideal classical gas limit, the average change in the entropy is shown to be proportional to the difference between the Shannon and Rényi entropies for nonextensive systems that are multifractal in nature. The $L$-potential, like the internal energy, is a Schur convex function of the empirical temperature, which satisfies Jensen's inequality, and serves as a measure of the tendency to uniformity in processes involving pure thermal conduction.
description: 8 pages
title: Investigation of the impacts of urban land use patterns on energy consumption in china
title: A case study of 20 provincial capital cities
titleType: AlternativeTitle
Creators: name: Zhao, Jie
name: Thinh, Nguyen Xuan
name: Li, Cheng
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: urban land use pattern
subject: energy consumption
subject: nighttime light data
subject: remote sensing
subject: panel data analysis
subject: 710
subject: Energieverbrauch
subject: Flächennutzung
subject: Fernerkundung
subject: Panelanalyse

description: Urban land use patterns are increasingly recognized as significant contributors to energy consumption. However, few studies have quantified the impacts of urban land use patterns on energy consumption. In this study, we analyzed the impacts of urban land use patterns on energy consumption for 20 provincial capital cities in China from 2000 to 2010. Landsat data and spatial metrics were first used to quantify the urban land use patterns, and then city-level energy consumption was estimated based on nighttime light (NTL) data and statistical provincial energy consumption data. Finally, a panel data analysis was applied to investigate the impacts of urban land use patterns on energy consumption. Our results showed that NTL data were effective for estimating energy consumption at the city level and indicated that accelerated energy consumption was caused by increases in the irregularity of urban land forms and the expansion of urban land. Moreover, significant regional differences in the impacts of urban land use patterns on energy consumptions were identified. Our results provide insights into the relationship between urban growth and energy consumption and may support effective planning towards sustainable development.
description: Sustainability / Molecular Diversity Preservation International (MDPI);Vol.9, (8), p.1383
Ephemera (Sinephemera) japonica McLanchlan 1875
Creators: name: Lei, Zhi-Ming
name: Zhou, Chang-Fa
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Ephemeroptera
Ephemeridae
Ephemera
Ephemera japonica

description: Ephemera (Sinephemera) japonica McLachlan, 1875 (Figs 19–20, 64)
Ephemera japonica McLachlan, 1875: 169 (male imagine and male subimagine; syntypes from Yokohama, Japan).
Ephemera japonica — Eaton, 1883: 4; Lestage, 1927: 99, 100; Uéno, 1931: 212; Matsumura, 1931: 1467; Matsumura, 1933: 64; Kimmins, 1960: 308 (lectotype figure); Kimmins, 1971: 315 (type depository); Gose, 1981: 455–457 (key); Tshernova et al., 1986: 105 (key); Ishiwata, 2001: 58 (list); Kawai and Tanida, 2005: 51 (key); Hwang et al., 2008: 161 (list). Ulmer, 1912: 369 (first record from Chinese Taiwan, but maybe wrong, see Kang et Yang, 1996); Ulmer, 1925: 94; Gui, 1985, 96; You and Gui, 1995, 113 (male); Zhang et al., 1995, 75; Zhou, 2013: 185 (list); Zhou et al., 2015: 233 (list).
Ephemera (?) japonica — Uéno, 1928: 21 (first description of nymph).
Ephemera (Sinephemera) japonica — Kluge, 2004: 235 (subgeneric combination).
Description (see McLachlan, 1875 and Uéno, 1928).
Diagnosis: (1) This species is unique in terms of the black midline of tergites VI–IX or VII–IX (Figs 19A, 19C, 20A); (2) its tergites and sternites have one pair of oblique stripes respectively but margins of tergites or sternites do not have any stripe (Figs 19, 20A–C). In adults: (3) its wings have no distinct markings except median band (Figs 20D–E); (4) male penes have expanded apices; (5) segment III of forceps is clearly longer than segment IV (Fig. 20F).
Remarks: Ulmer (1912) reported this species from Chinese Taiwan province, but Kang et Yang (1996) described only two other Ephemera species from the Taiwan island. But this species possibly distributes in northeastern part of China, so we include it the present fauna.
Material examined: Japan: 10 nymphs, 1 ♀ subimagine, Nagano Prefecture, leg. Chang-Fa Zhou, 2012-VI-13.
The types of this species are in the British Museum (Kimmins, 1971).
Distribution (Fig. 64): Japan, Far east Russia.
description: Published as part of Lei, Zhi-Ming & Zhou, Chang-Fa, 2024, The subgenus Sinephemera Kluge, 2004 in China (Ephemeroptera: Ephemeridae: Ephemera Linnaeus, 1758), pp. 1-68 in Zootaxa 5517 (1) on page 23, DOI: 10.11646/zootaxa.5517.1.1, http://zenodo.org/record/13915182
Εφοδιαστική αλυσίδα και τεχνολογίες Industry 4.0
Creators: name: Μενγκέζι, Γκένα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Βιομηχανία 4.0
subject: Εφοδιαστική αλυσίδα
subject: Τεχνολογίες
subject: Industry 4.0

description: H παρούσα εργασία στοχεύει να σκιαγραφήσει τη συνολική εικόνα της Βιομηχανίας 4.0 μέσω μιας ολοκληρωμένης επισκόπησης της βιβλιογραφίας, να εντοπίσει αν χρησιμοποιούν οι εταιρείες σε διαφορετικές βιομηχανίες αυτές τις ψηφιακές τεχνολογίες στην Διαχείριση των Εφοδιαστικών τους Αλυσίδων και με ποιον τρόπο, ποια είναι τα οφέλη, οι προκλήσεις και οι προοπτικές του μέλλοντος, εάν οι τεχνολογίες δεν έχουν χρησιμοποιηθεί ακόμη, ποιος είναι ο λόγος και να προτείνει μια μελλοντική στρατηγική ατζέντα για το πώς μπορούν οι εταιρείες να διαχειριστούν τον ψηφιακό μετασχηματισμό.
Non-abelian Yang-Mills in Kundt spacetimes
Creators: name: Fuster, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present new exact solutions of the Einstein-Yang-Mills system. The solutions are described by a null Yang-Mills field in a Kundt spacetime. They generalize a previously known solution for a metric of $pp$ wave type. The solutions are formally of Petrov type III.
description: Talk presented at the XXVIII Spanish Relativity Meeting E.R.E. 2005, Oviedo, September 6-10, 2005, to be published by AIP Conference Proceedings, 5 pages
Confidence sets for nonparametric wavelet regression
Creators: name: Genovese, Christopher R.
name: Wasserman, Larry
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G15 (Primary) 62G99, 62M99, 62E20 (Secondary)

description: We construct nonparametric confidence sets for regression functions using wavelets that are uniform over Besov balls. We consider both thresholding and modulation estimators for the wavelet coefficients. The confidence set is obtained by showing that a pivot process, constructed from the loss function, converges uniformly to a mean zero Gaussian process. Inverting this pivot yields a confidence set for the wavelet coefficients, and from this we obtain confidence sets on functionals of the regression curve.
description: Published at http://dx.doi.org/10.1214/009053605000000011 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A Sentiment Analysis Dataset for Code-Mixed Malayalam-English
Creators: name: Chakravarthi, Bharathi Raja
name: Jose, Navya
name: Suryawanshi, Shardul
name: Sherly, Elizabeth
name: McCrae, John P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: There is an increasing demand for sentiment analysis of text from social media which are mostly code-mixed. Systems trained on monolingual data fail for code-mixed data due to the complexity of mixing at different levels of the text. However, very few resources are available for code-mixed data to create models specific for this data. Although much research in multilingual and cross-lingual sentiment analysis has used semi-supervised or unsupervised methods, supervised methods still performs better. Only a few datasets for popular languages such as English-Spanish, English-Hindi, and English-Chinese are available. There are no resources available for Malayalam-English code-mixed data. This paper presents a new gold standard corpus for sentiment analysis of code-mixed text in Malayalam-English annotated by voluntary annotators. This gold standard corpus obtained a Krippendorff's alpha above 0.8 for the dataset. We use this new corpus to provide the benchmark for sentiment analysis in Malayalam-English code-mixed texts.
Cognitive-motivational determinants of residents’ civic engagement and health (inequities) in the context of noise action planning: a conceptual model
Creators: name: Riedel, Natalie
name: Van Kamp, Irene
name: Köckler, Heike
name: Scheiner, Joachim
name: Loerbroks, Adrian
name: Claßen, Thomas
name: Bolte, Gabriele
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Residential traffic noise exposure
subject: Noise annoyance
subject: Behavioural outcome expectancy
subject: Perceived behavioural control
subject: Coping
subject: Civic engagement
subject: Health inequities
subject: Environmental justice
subject: Logic model
subject: 710
subject: Lärmbelastung
subject: Verkehrslärm
subject: Bürgerschaftliches Engagement
subject: Soziale Ungleichheit
subject: Umweltgerechtigkeit

description: The Environmental Noise Directive expects residents to be actively involved in localising and selecting noise abatement interventions during the noise action planning process. Its intervention impact is meant to be homogeneous across population groups. Against the background of social heterogeneity and environmental disparities, however, the impact of noise action planning on exposure to traffic-related noise and its health effects is unlikely to follow homogenous distributions. Until now, there has been no study evaluating the impact of noise action measures on the social distribution of traffic-related noise exposure and health outcomes. We develop a conceptual (logic) model on cognitive-motivational determinants of residents’ civic engagement and health (inequities) by integrating arguments from the Model on household’s Vulnerability to the local Environment, the learned helplessness model in environmental psychology, the Cognitive Activation Theory of Stress, and the reserve capacity model. Specifically, we derive four hypothetical patterns of cognitive-motivational determinants yielding different levels of sustained physiological activation and expectancies of civic engagement. These patterns may help us understand why health inequities arise in the context of noise action planning and learn how to transform noise action planning into an instrument conducive to health equity. While building on existing frameworks, our conceptual model will be tested empirically in the next stage of our research process.
description: International Journal of Environmental Research and Public Health;2017, 14(6), 578
Έξυπνα υβριδικά συστήματα παραγωγής ενέργειας σε ελληνικά νησιά
Creators: name: Μακρής, Δημήτριος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Υβριδικά συστήματα παραγωγής ηλεκτρικής ενέργειας
subject: Μη διασυνδεδεμένα νησιά
subject: Ανάλυση Κύκλου Ζωής (ΑΚΖ)
subject: Life Cycle Analysis (LCA)
subject: HOMER
subject: SimaPro
subject: Λέσβος
subject: Κάρπαθος
subject: Αστυπάλαια

description: Αντικείμενο της παρούσας διπλωματικής εργασίας αποτελεί η μελέτη εφαρμογής αυτόνομων υβριδικών συστημάτων παραγωγής ηλεκτρικής ενέργειας με σκοπό την πλήρη κάλυψη των ενεργειακών αναγκών τριών μη διασυνδεδεμένων ελληνικών νησιών (Λέσβος, Κάρπαθος, Αστυπάλαια), καθώς και η εκτίμηση του συνόλου των περιβαλλοντικών επιπτώσεων (Ανάλυση Κύκλου Ζωής - LCA) που προκύπτουν από τη χρήση τους καθ’ όλη τη διάρκεια του κύκλου ζωής τους. Αρχικά, παρουσιάζονται γενικά στοιχεία αναφορικά με το παγκόσμιο ενεργειακό τοπίο σε συνδυασμό με τις περιβαλλοντικές επιπτώσεις, ενώ γίνεται ιδιαίτερη αναφορά στο φαινόμενο του θερμοκηπίου, την κλιματική αλλαγή και τον ρόλο των Ανανεώσιμων Πηγών Ενέργειας στις διεθνείς προσπάθειες αντιμετώπισής τους. Στη συνέχεια παρατίθεται μια εκτενής ανασκόπηση των επιστημονικών μελετών που αφορούν στην εφαρμογή αυτόνομων υβριδικών συστημάτων σε διεθνές επίπεδο, με ιδιαίτερη έμφαση στη μεθοδολογία και τα αποτελέσματα της κάθε μελέτης, καθώς και μια σύντομη ανασκόπηση μελετών που σχετίζονται με την ανάλυση κύκλου ζωής υβριδικών συστημάτων. Τέλος, περιγράφονται αναλυτικά οι μεθοδολογίες μοντελοποίησης και βελτιστοποίησης των προτεινόμενων αυτόνομων υβριδικών συστημάτων με το λογισμικό HOMER Pro , καθώς και η ανάλυση των περιβαλλοντικών επιπτώσεων κύκλου ζωής (LCA) με το λογισμικό SimaPro και παρατίθενται τα αποτελέσματα της μελέτης.
Optimizing Quantum Teleportation and Dense Coding via Mixed Noise Under Non-Markovian Approximation
Creators: name: Islam, Akbar
name: Wang, An Min
name: Abliz, Ahmad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Physicists are attracted to open-system dynamics, how quantum systems evolve, and how they can protected from unnecessary environmental noise, especially environmental memory effects are not negligible, as with non-Markovian approximations. There are several methods to solve master equation of non-Markovian cases, we obtain the solutions of quantum-state-diffusion equation for a two qubit system using perturbation method, which under influence of various types of environmental noises, i.e., relaxation, dephasing and mix of them. We found that mixing these two types of noises benefit the quantum teleportation and quantum super-dense coding, that by introducing strong magnetic field on the relaxation processes will enhance quantum correlation in some time-scale.
description: 7 pages, 6 figures