cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Missing Features Reconstruction Using a Wasserstein Generative Adversarial Imputation Network
Creators: name: Friedjungová, Magda
name: Vašata, Daniel
name: Balatsko, Maksym
name: Jiřina, Marcel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Missing data is one of the most common preprocessing problems. In this paper, we experimentally research the use of generative and non-generative models for feature reconstruction. Variational Autoencoder with Arbitrary Conditioning (VAEAC) and Generative Adversarial Imputation Network (GAIN) were researched as representatives of generative models, while the denoising autoencoder (DAE) represented non-generative models. Performance of the models is compared to traditional methods k-nearest neighbors (k-NN) and Multiple Imputation by Chained Equations (MICE). Moreover, we introduce WGAIN as the Wasserstein modification of GAIN, which turns out to be the best imputation model when the degree of missingness is less than or equal to 30%. Experiments were performed on real-world and artificial datasets with continuous features where different percentages of features, varying from 10% to 50%, were missing. Evaluation of algorithms was done by measuring the accuracy of the classification model previously trained on the uncorrupted dataset. The results show that GAIN and especially WGAIN are the best imputers regardless of the conditions. In general, they outperform or are comparative to MICE, k-NN, DAE, and VAEAC.
description: Preprint of the conference paper (ICCS 2020), part of the Lecture Notes in Computer Science
title: Η ανταγωνιστικότητα του τουριστικού τομέα σε σχέση με άλλες μεσογειακές χώρες
title: Competitiveness of the tourist sector in comparison to other Mediterranean countries
titleType: AlternativeTitle
Creators: name: Δημαράς, Άγγελος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Ανταγωνιστικότητα
Μεσόγειος
Τουριστικός τομέας
Τουρισμός

description: Σκοπός της παρούσας εργασίας ήταν να διερευνήσει την ανταγωνιστικότητα του τουριστικού τομέα της Ελλάδας σε σύγκριση με άλλες Μεσογειακές χώρες. Χρησιμοποιήθηκε η ποιοτική μέθοδος έρευνας με συνεντεύξεις σε τρία στελέχη του Υπουργείου Τουρισμού και του Υπουργείου Οικονομικών. Από την έρευνα διαπιστώθηκε ότι, η έννοια της ανταγωνιστικότητας στον τουρισμό συνδέεται με την εμπειρία που αποκομίζουν οι επισκέπτες από έναν τουριστικό προορισμό, στη βάση της ποιότητας των παρεχόμενων υπηρεσιών, των υποδομών, αλλά και του τρόπου λειτουργίας όλων των εμπλεκομένων τουριστικών και μη επιχειρήσεων, καθώς και της κυβερνητικής πολιτικής. Το πιο βασικό κριτήριο που χρησιμοποιείται για τη μέτρηση και αξιολόγηση της ανταγωνιστικότητα του ελληνικού τουριστικού τομέα είναι ο δείκτης Travel and Tourism Competitiveness Index, του Παγκόσμιου Οικονομικού Φόρουμ (WEF), παράλληλα με άλλα ποσοτικά και ποιοτικά κριτήρια. Αναφορικά με την Ελλάδα διαπιστώθηκε ότι βαθμολογείται υψηλά σε ιδιωτικές υποδομές, φυσικό περιβάλλον, πολιτισμό και ιστορία, εξυπηρέτηση στα καταλύματα, φιλοξενία και συνολικά ανθρώπινο κεφάλαιο / δυναμικό. Ωστόσο, βαθμολογείται χαμηλά σε δημόσιες υποδομές, διαφοροποίηση του προϊόντος ιδίως για την προσέλκυση τουριστών υψηλού εισοδήματος, φορολογία που επηρεάζει την ανταγωνιστικότητα των τιμών, shopping, δραστηριότητες, και επενδύσεις μεγάλης κλίμακας. Η φορολογία, η εποχικότητα, το μοντέλο του μαζικού τουρισμού, η έλλειψη κεντρικού σχεδιασμού, οργάνωσης, προγραμματισμού και μεθοδικότητας, οι υποδομές μεταφορών, αποτελούν παράγοντες που μειώνουν την ανταγωνιστικότητα του ελληνικού τουρισμού. Ως εκ τούτου υπάρχει η αναγκαιότητα για τον εκ νέου σχεδιασμό του τουριστικού μοντέλου και της δημιουργίας μίας ενιαίας, συνεκτικής τουριστικής πολιτικής, ιδίως στο πλαίσιο της υφιστάμενης πανδημίας που συνέβαλε στο να αναδειχθούν αδυναμίες και προβλήματα του ελληνικού τουριστικού τομέα.
Discovery potential for the LHCb fully-charm tetraquark $X(6900)$ state via $\bar{p}p$ annihilation reaction
Creators: name: Wang, Xiao-Yun
name: Lin, Qing-Yong
name: Xu, Hao
name: Xie, Ya-Ping
name: Huang, Yin
name: Chen, Xurong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by the observation of the fully-charm tetraquark $X(6900)$ state at LHCb, the production of $X(6900)$ in $\bar{p}p\rightarrow J/ψJ/ψ$ reaction is studied within an effective Lagrangian approach and Breit-Wigner formula. The numerical results show that the cross section of $X(6900)$ at the c.m. energy of 6.9 GeV is much larger than that from the background contribution. Moreover, we estimate dozens of signal events can be detected by D0 experiment, which indicates that searching for the $X(6900)$ via antiproton-proton scattering may be a very important and promising way. Therefore, related experiments are suggested to be carried out.
description: 4 pages, 2 figures
Additional file 2 of Mechanisms affecting exercise ventilatory inefficiency-airflow obstruction relationship in male patients with chronic obstructive pulmonary disease
Creators: name: Chuang, Ming-Lung
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2.
A survey of recent results on congruence lattices of lattices
Creators: name: Tuma, Jiri
name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 06B10, 06E05

description: We review recent results on congruence lattices of (inﬁnite) lattices. We discuss results obtained with box products, as well as categorical, ring-theoretical, and topological results.
Small torsion generating sets for hyperelliptic mapping class groups
Creators: name: Stukow, Michal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We prove that both the hyperelliptic mapping class group and the extended hyperelliptic mapping class group are generated by two torsion elements. We also compute the index of the subgroup of the hyperelliptic mapping class group which is generated by involutions and we prove that the extended hyperelliptic mapping class group is generated by three orientation reversing involutions.
description: A version of the paper which appeared in Topology and its {A}pp
Magnetocaloric properties of the binary Ising model with arbitrary spin
Creators: name: Akıncı, Ümit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The magnetocaloric properties of the Ising binary alloys composed of arbitrary spin values, have been determined by using effective field theory. For determining the efficiency of the magnetocaloric effect in binary alloy, the quantities of interest such as isothermal magnetic entropy change and refrigerant capacity have been calculated for various values of spin and concentration. It is shown that, by changing the concentration we can tune the magnetocaloric performance. Also, it has been shown that greater refrigerant capacity can be obtained for intermediate concentration values, in comparison with the limiting concentration values.
Numerical modeling of nonohmic percolation conduction and Poole Frenkel laws
Creators: name: Patmiou, Maria
name: Karpov, V. G.
name: Serpen, G.
name: Weborg, B. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a numerical model that simulates the current-voltage (I-V) characteristics of materials that exhibit percolation conduction. The model consists of a two dimensional grid of exponentially different resistors in the presence of an external electric field. We obtained exponentially non-ohmic I-V characteristics validating earlier analytical predictions and consistent with multiple experimental observations of the Poole-Frenkel laws in non-crystalline materials. The exponents are linear in voltage for samples smaller than the correlation length of percolation cluster L, and square root in voltage for samples larger than L.
description: 7 pages, 9 figures
Notes on 2-groupoids, 2-groups and crossed-modules
Creators: name: Noohi, Behrang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: This paper contains some basic results on 2-groupoids, with special emphasis on computing derived mapping 2-groupoids between 2-groupoids and proving their invariance under strictification. Some of the results proven here are presumably folklore (but do not appear in the literature to the author's knowledge) and some of the results seem to be new. The main technical tool used throughout the paper is the Quillen model structure on the category of 2-groupoids introduced by Moerdijk and Svensson.
description: An error in Definition 8.4 corrected. 29 pages
Coupling between guided modes of two parallel nanofibers
Creators: name: Kien, Fam Le
name: Ruks, Lewis
name: Chormaic, Sile Nic
name: Busch, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the coupling between the fundamental guided modes of two identical parallel nanofibers analytically and numerically. We calculate the coefficients of directional coupling, butt coupling, and mode energy changes as functions of the fiber radius, the light wavelength, and the fiber separation distance. We show that, due to the symmetry of the system, a mode of a nanofiber with the principal quasilinear polarization aligned along the radial or tangential axis is coupled only to the mode with the same corresponding principal polarization of the other nanofiber. We find that the effects of the butt coupling and the mode energy changes on the power transfer are significant when the fiber radius is small, the light wavelength is large, or the fiber separation distance is small. We show that the power transfer coefficient may achieve a local maximum or become zero when the fiber radius, the light wavelength, or the fiber separation distance varies indicating the system could be used in metrology for distance or wavelength measurements.
Η συμβολή του IoT στη λήψη διοικητικών αποφάσεων
Creators: name: Αδάμ, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Internet of Things
subject: IoT
subject: Διοίκηση
subject: Big data

description: Μέρα με τη μέρα η επιστήμη και η τεχνολογία εξελίσσονται με αρκετά γρήγορους ρυθμούς. Μέσα σε όλες αυτές τις αλλαγές οι επιχειρήσεις και τα στελέχη προσπαθούν να προσαρμοστούν στα καινούργια δεδομένα, αλλά και να προλάβουν τις εξελίξεις του μέλλοντος. Ένα από αυτά τα τεχνολογικά δρώμενα είναι το Internet of Things (IoT) ή Διαδίκτυο των Πραγμάτων όπως αλλιώς ονομάζεται. Το IoT με τη δύναμη και τα εργαλεία για ανάλυση που προσφέρει έχει κινήσει το ενδιαφέρον του κόσμου και ιδιαίτερα των επιχειρήσεων. Ο επιχειρηματικός κόσμος έχει καταλάβει τη σημασία του και τις δυνατότητες που μπορεί να προσφέρει σε συνδυασμό με τα Big Data και προσπαθούν να το ενσωματώσουν στις επιχειρήσεις τους για όφελος τους. Στην παρούσα διπλωματική εργασία θα παρουσιαστεί πως το IoT μπορεί να βοηθήσει τα στελέχη στη λήψη καλύτερων αποφάσεων, αλλά και στις καλύτερες πρακτικές και στις διαδικασίες που μπορούν οι επιχειρήσεις να ακολουθήσουν. Στόχος αυτής της διπλωματικής εργασίας είναι να δείξει περαιτέρω το IoT και τις δυνατότητες του για τις επιχειρήσεις. Για αυτό το λόγο γίνεται αναφορά με ποιο τρόπο το IoT επηρεάζει το κόσμο γενικά και που το εντοπίζουμε. Στη συνέχεια επικεντρώνεται στο IoT στις επιχειρήσεις και πιο συγκεκριμένα στο τομέα των Big Data, AI και Supply Chain όπου γίνεται εκτενή ανάλυση αυτών των τομέων με το IoT και πως επωφελούνται οι επιχειρήσεις. Στη συνέχεια παρουσιάζονται κάποιες πλατφόρμες του IoT και τα πλεονεκτήματα τους ανάλογα με τον τομέα που θέλει η επιχείρηση να τις χρησιμοποιήσει καθώς και στο πως θα επωφεληθεί από αυτές. Στο τέλος γίνεται μία έρευνα για διάφορους τομείς του IoT και κάποιες προβλέψεις σε σχέση με την παγκόσμια αγορά όπου φαίνεται η σημαντικότητα του IoT, ο γρήγορος ρυθμός ανάπτυξής του, καθώς και τo σημαντικό μερίδιο που καταλαμβάνει στην παγκόσμια αγορά.
A Temperature Monitoring System Incorporating an Array of Precision Wireless Thermometers
Creators: name: Javadpour, Amir
name: Tehran, Hamidreza Memarzadeh
name: Saghafi, Fatemeh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper addresses the design and implementation of a real time temperature monitoring system with applications in telemedicine. The system consists of a number of precision wireless thermometers which are conceived and realized to measure the patients body temperature in hospitals and the intensive care units. Each wireless thermometer incorporates an accurate semiconductor temperature sensor, a transceiver operating at 2.4 GHz and a microcontroller that controls the thermometer functionalities. An array of two thermometers are implemented and successfully evaluated in different scenarios, including free space and in vivo tests. Also, an in house developed computer software is used in order to visualize the measurements in addition to detecting rapid increase and alerting high body temperature. The agreement between the experimental data and reference temperature values is significant.
Critical behavior of strongly coupled lattice QCD at finite temperature
Creators: name: Umino, Yasuo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the critical behavior of lattice Quantum Chromodynamics (QCD) in the strong coupling approximation with Kogut-Susskind and Wilson fermions at finite temperature ($T$) and zero chemical potential. Using the Hamiltonian formulation we construct a mean field solution to the equation of motion at finite $T$ and use it to study the elementary thermal excitations and to extract some critical exponents characterizing the observed second order phase transition. We find similar critical behaviors for Kogut-Susskind and Wilson fermions at finite $T$
description: To appear in Modern Physics Letters A
Η δανειακή δυνατότητα μιας επιχείρησης.Cross-pledging και redeployability
Creators: name: Κουτσούμπας, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Δανειακή δυνατότητα
subject: Cross pledging
subject: Redeployability

description: Στην παρούσα εργασία πραγματοποιείται μια προσπάθεια να αναφερθούν και να αξιολογηθούν οι τρόποι με τους οποίους μια εταιρεία μπορεί να εξασφαλίσει δανειοδότηση για την επίτευξη έργων επενδυτικού χαρακτήρα. Στόχος της μελέτης μας είναι να οριστούν όλα τα μεγέθη που επηρεάζουν τα μοντέλα που μελετώνται από τη βιβλιογραφική επισκόπηση και να εφαρμοστούν μέθοδοι για την στρατηγική που ενδέχεται να ακολουθήσει η επιχείρηση. Επιπλέον, τα ανωτέρω αναπτύσσονται σε τέσσερα θεμελιώδη κεφάλαια και την εισαγωγή. Πιο συγκεκριμένα, στο πρώτο κεφάλαιο αναφέρονται λεπτομερώς διάφοροι ορισμοί που ερμηνεύουν το ζήτημα της ικανότητας μιας εταιρείας για δανειοδότηση και του λόγους που είναι ωφέλιμο αυτό για εκείνη. Στην επόμενη ενότητα γίνεται λόγος για το πιο κλασσικό μοντέλο, το υπόδειγμα πάγιας επένδυσης, όπου εισάγεται και αναπτύσσεται αναλυτικώς. Η τρίτη πτυχή αναφέρεται σε ένα μοντέλο με περισσότερα οφέλη υπό προϋποθέσεις, αυτό του cross pledging, με αναφορές στον τρόπο λειτουργίας του αλλά και αύξηση της πιθανότητας δανειοδότησης. Επίσης, το τελευταίο βιβλιογραφικό κεφάλαιο αφορά το redeploy ability ένα υπόδειγμα ιδιαίτερης σημασίας κυρίως σε start up εταιρείες, το οποίο μειώνει αισθητά το ρίσκο και από τις δύο πλευρές, του δανειολήπτη και του δανειστή. Στη συνέχεια, εισάγεται το μέρος των επεκτάσεων, το οποίο αναφέρεται στην ποσότητα της επένδυσης, το λεγόμενο συνεχές επενδυτικό υπόδειγμα. Ειδικότερα, αναπτύσσονται το αρχικό μοντέλο των ανεξάρτητων projects αλλά και το υπόδειγμα με διαδοχικά έργα, όπου διακρίνεται πάλι η έννοια του cross pledging. Η βασική ενασχόληση μας περιορίζεται στην περίπτωση που ενυπάρχουν δύο έργα προς επένδυση και οι συγκρίσεις πραγματοποιούνται τόσο μεταξύ υποδειγμάτων σταθερής επένδυσης με συνεχούς, όσο και στη συνεχής περίσταση όπου ελέγχεται το βέλτιστο σενάριο με την προσθήκη ή χωρίς cross pledging. Εν κατακλείδι, παρουσιάζεται μια σύνοψη της μελέτης μας στο κομμάτι των αποτελεσμάτων και συγκρίσεις ιδιαιτέρας σημασίας για τον σκοπό της δανειοδότησης.
Hanbury-Brown and Twiss bunching of phonons and of the quantum depletion in a strongly-interacting Bose gas
Creators: name: Cayla, Hugo
name: Butera, Salvatore
name: Carcy, Cécile
name: Tenart, Antoine
name: Hercé, Gaétan
name: Mancini, Marco
name: Aspect, Alain
name: Carusotto, Iacopo
name: Clément, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report the realisation of a Hanbury-Brown and Twiss (HBT)-like experiment with a gas of strongly interacting bosons at low temperatures. The regime of large interactions and low temperatures is reached in a three-dimensional optical lattice and atom-atom correlations are extracted from the detection of individual metastable Helium atoms after a long free-fall. We observe a HBT bunching in the non-condensed fraction of the gas whose properties strongly deviate from the HBT signals expected for non-interacting bosons. In addition, we show that the measured correlations reflect the peculiar quantum statistics of atoms belonging to the quantum depletion and of the Bogoliubov phonons, i.e., of collective excitations of the many-body quantum state. Our results demonstrate that atom-atom correlations provide information about the quantum state of strongly-interacting particles, extending the interest of HBT-like experiments beyond the case of non-interacting particles.
description: 10 pages, 7 figures
Liftings of diagrams of semilattices by diagrams of dimension groups
Creators: name: Tuma, Jiri
name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Mathematics (math.GM)
subject: K-Theory and Homology (math.KT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 06A12, 06C20, 06F20, 15A03, 15A24, 15A48, 16E20, 16E50, 19A49, 19K14

description: We investigate categorical and amalgamation properties of the functor Idc assigning to every partially ordered abelian group G its semilattice of compact ideals Idc G. Our main result is the following. Theorem 1. Every diagram of finite Boolean semilattices indexed by a finite dismantlable partially ordered set can be lifted, with respect to the Idc functor, by a diagram of pseudo-simplicial vector spaces. Pseudo-simplicial vector spaces are a special kind of finite-dimensional partially ordered vector spaces (over the rationals) with interpolation. The methods introduced make it also possible to prove the following ring-theoretical result. Theorem 2. For any countable distributive join-semilattices S and T and any field K, any (v,0)-homomorphism $f: S\to T$ can be lifted, with respect to the Idc functor on rings, by a homomorphism $f: A\to B$ of K-algebras, for countably dimensional locally matricial algebras A and B over K. We also state a lattice-theoretical analogue of Theorem 2 (with respect to the Conc functor, and we provide counterexamples to various related statements. In particular, we prove that the result of Theorem 1 cannot be achieved with simplicial vector spaces alone.
TECHNICAL EFFICIENCY, MANAGERIAL ABILITY AND FARMER EDUCATION IN GUATEMALAN CORN PRODUCTION: A LATENT VARIABLE ANALYSIS
Creators: name: Kalaitzandonakes, Nicholas G.
name: Dunn, Elizabeth G.
name: Kalaitzandonakes, Nicholas G.
name: Dunn, Elizabeth G.
Publisher: name: Unknown
Year: 1995
Subjects: Farm Management

description: In this study it is argued that conflicting empirical results on the relationship between technical efficiency and education may be in part attributed to difficulties in the measurement of key variables. Calculation of technical efficiency with three alternative frontier methods for a sample of Guatemalan corn farms resulted in significant differences both in the average technical efficiency of the sample and the efficiency rankings of individual farms. Furthermore, following two-step procedures where technical efficiency is regressed against a set of explanatory variables, it is shown that the choice of efficiency measurement technique can alter the importance of education as a contributing factor to increased technical efficiency. An alternative approach is presented for investigating the relationship between education and efficiency while accounting for difficulties in the measurement of conceptual variables and measurement errors.
Στρατηγικές αντιστάθμισης συναλλαγματικού κινδύνου
Creators: name: Γρίβας, Γαβριήλ
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Αντιστάθμιση
subject: Συνάλλαγμα
subject: Κίνδυνος

description: Στην παρούσα εργασία δοκιμάζουμε αν ο αντισταθμιστικός κίνδυνος του νομίσματος βελτιώνει την απόδοση των διεθνών χαρτοφυλακίων μετοχών και ομολόγων. Δείχνουμε μέσω δύο διαφορετικών μοντέλων παλινδρόμησης και μέσω της μεθόδου εκτίμησης OLS, ότι υπάρχει πληθώρα διαφορετικών βέλτιστων λόγων αντιστάθμισης τα οποία είναι διαφορετικά από τις κλασικές εκτιμήσεις της πλήρους αντιστάθμισης ή της καθόλου αντιστάθμισης και εξαρτώνται από τις πληροφορίες με τις οποίες θα εκτιμηθεί το εκάστοτε μοντέλο παλινδρόμησης σχετικά με το βέλτιστο χαρτοφυλάκιο. Αυτά τα αποτελέσματα ισχύουν και για τα δύο μοντέλα, δηλαδή για το μοντέλο ενός επενδυτή που επενδύει σε μία χώρα αλλά και για το μοντέλο ενός επενδυτή σε πολλές χώρες. Τέλος γίνεται αναφορά σε μελλοντικές επεκτάσεις της παρούσας έρευνας, η οποία στηρίζεται στα αποτελέσματα των εκτιμηθέντων μοντέλων.
Additional file 3 of Stand When You Can: development and pilot testing of an intervention to reduce sedentary time in assisted living
Creators: name: M. L. Voss
name: J. P. Pope
name: R. Larouche
name: Copeland, J. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Table S3. Pre- and Post-Intervention Device-measured Movement Variables, By Weekday and Weekend day.
INDUSTRIALIZATION OF U.S. AGRICULTURE: POLICY, RESEARCH, AND EDUCATION NEEDS
Creators: name: Barry, Peter J.
name: Barry, Peter J.
Publisher: name: Unknown
Year: 1995
Subjects: Agribusiness

description: The industrialization of agriculture refers to the continued consolidation of farms and to the growing use of production and marketing contracts and vertical integration among input suppliers, lenders, agricultural producers, processors, and distributors of food and fiber products, domestically and globally. Industrialization is strongly affecting the structure and performance of farms and agribusiness firms; the distribution of risk, returns, and the ownership and control of resources in the food and fiber system; locations of production; competitiveness in international markets; the effectiveness of agricultural policy; business activity, income, family welfare and employment in rural communities; and environmental quality and control. Research is urgently needed to measure these effects, understand the complex underlying factors, and evaluate policy alternatives that influence and are influenced by the industrialization of agriculture.
The role of adenosine triphosphate in human granulosa-luteal cells
Creators: name: Tai, Chen-Jei
Publisher: name: University of British Columbia
Year: 2009

description: Adenosine triphosphate (ATP) is released from cells such as platelets and co-released with neurotransmitter granules from autonomic nerves by exocytosis. Extracellular ATP binds to a G protein-coupled P2 purinoceptor that activates phospholipase C and phosphatidylinositol hydrolysis, generating diacylglycerol and inositol 1,4,5-trisphosphate, which stimulate protein kinase C (PKC) and cytosolic calcium mobilization, respectively. Autonomic nerves have been shown to innervate the ovary and may be involved in regulating steroidogenesis. It is tempting to speculate that the co-released ATP from autonomic nerve endings in the ovary may play a role in regulating ovarian function. A series of experiments has been performed in this study to examine (1) the expression and regulation of P2U purinergic receptor (P2UR) in human granulosa-luteal cells (hGLCs), (2) the role of PKC in ATP-induced calcium oscillations, (3) the action and mechanism of antigonadotropic effect of ATP on hGLCs, (4) the functional role of extracellular ATP in the ovary, and (5) the effect of ATP on the activation of the mitogen-activated protein kinase (MAPK) signaling pathway and its physiological role in hGLCs. This study demonstrated for the first time the expression of P2UR mRNA in hGLCs, and the regulation of P2UR mRNA by hCG, cAMP and forskolin. The P2UR was functional in hGLCs, since activation of the P2UR by ATP or UTP resulted in rapid and transient mobilization of cytosolic calcium at the single cell level. It appears that PKC may have dual actions by providing positive forward actions as well as negative feedback in controlling various signaling steps. As shown in this study, ATP was capable of inducing calcium mobilization, which was negatively regulated by PKC, from both intracellular stores and extracellular influx in cultured hGLCs. The antigonadotropic effect of extracellular ATP was revealed as it significantly reduced hCG-stimulated cAMP production. The inhibitory effect of ATP was reversed by PKC inhibitors, staurosporin and bisindolylmaleimide I, indicating the involvement of PKC in mediating the antigonadotropic action of ATP in hGLCs. Further, our data demonstrated that ATP was able to activate the MAPK signaling pathway in hGLCs. After binding to P2-purinoceptor, ATP activated MAPK subsequent to PLC and PKC activation through a PTX-insensitive G-protein in hGLCs. MAPK mediated the anti-gonadotropic action of ATP in steroidogenesis by reducing hCG-stimulated progesterone production. These findings support a potential role of ATP in regulating ovarian function.
High energy QCD: multiplicity distribution and entanglement entropy
Creators: name: Gotsman, E.
name: Levin, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we show that QCD at high energies leads to the multiplicity distribution $\frac{σ_n}{σ_{ \rm in}}\,\,=\,\,\frac{1}{N}\,\Lb \frac{N\,-\,1}{N}\Rb^{n - 1}$, (where $N$ denotes the average number of particles), and to entanglement entropy $S \,=\,\ln N$, confirming that the partonic stat at high energy is maximally entangled. However, the value of $N$ depends on the kinematics of the parton cascade. In particular, for DIS$N = xG(x,Q)$ , where $xG$ is the gluon structure function, whil for hadron-hadron collisions, $N \propto Q^2_S(Y)$, where $Q_s$ denotes the saturation scale. We checked that this multiplicity distribution describes the LHC data for low multiplicities $n \,
description: 22pp. 14 figures in pdf file
Geophysical-astrophysical spectral-element adaptive refinement (GASpAR): Object-oriented h-adaptive code for geophysical fluid dynamics simulation
Creators: name: Rosenberg, Duane
name: Fournier, Aime'
name: Fischer, Paul
name: Pouquet, Annick
Publisher: name: arXiv
Year: 2005
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M60; 65M70; 65M50; 65M12; 76M10; 76M22

description: We present an object-oriented geophysical and astrophysical spectral-element adaptive refinement (GASpAR) code for application to turbulent flows. Like most spectral-element codes, GASpAR combines finite-element efficiency with spectral-method accuracy. It is also designed to be flexible enough for a range of geophysics and astrophysics applications where turbulence or other complex multiscale problems arise. For extensibility and flexibilty the code is designed in an object-oriented manner. The computational core is based on spectral-element operators, which are represented as objects. The formalism accommodates both conforming and nonconforming elements and their associated data structures for handling interelement communications in a parallel environment. Many aspects of this code are a synthesis of existing methods; however, we focus on a new formulation of dynamic adaptive refinement (DARe) of nonconforming h-type. This paper presents the code and its algorithms; we do not consider parallel efficiency metrics or performance. As a demonstration of the code we offer several two-dimensional test cases that we propose as standard test problems for comparable DARe codes. The suitability of these test problems for turbulent flow simulation is considered.
description: 51 pages, 12 figures, submitted to J. Comp. Phys., 2005/5/11
Additional file 2 of Stand When You Can: development and pilot testing of an intervention to reduce sedentary time in assisted living
Creators: name: M. L. Voss
name: J. P. Pope
name: R. Larouche
name: Copeland, J. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Table S2. Changes in Self-Reported Sedentary Time by Domain.
Scaling properties of the Penna model
Creators: name: Brigatti, E.
name: Martins, J. S. Sa'
name: Roditi, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We investigate the scaling properties of the Penna model, which has become a popular tool for the study of population dynamics and evolutionary problems in recent years. We find that the model generates a normalised age distribution for which a simple scaling rule is proposed, that is able to reproduce qualitative features for all genome sizes.
description: 4 pages, 4 figures
RECREATIONAL SWIMMING BENEFITS OF NEW HAMPSHIRE LAKE WATER QUALITY POLICIES: AN APPLICATION OF A REPEATED DISCRETE CHOICE MODEL
Creators: name: Needelman, Michael S.
name: Kealy, Mary Jo
name: Needelman, Michael S.
name: Kealy, Mary Jo
Publisher: name: Unknown
Year: 1995
Subjects: Environmental Economics and Policy

description: Water pollution control policies generally direct sources (i.e., industry, agriculture) to reduce loadings of certain pollutants. Thus, evaluating the relative net recreation benefits of policies to improve water quality requires establishing a linkage between the sources, the resultant water quality degradation at the affected water bodies, and, ultimately, the effect on recreation behavior. This linkage is rarely present in the empirical literature which is, thus, deficient for water pollution control policy assessment purposes. In this paper, we estimate the relative recreational swimming benefits that may result from controlling point and nonpoint sources of pollution, respectively, in New Hampshire's lakes. We use a repeated discrete choice framework to model swimming behavior as a function of each lake's level of eutrophication, bacteria, and oil and grease. For each pollutant, at each affected lake, we identify which source is responsible for the pollution, and we conduct scenarios controlling each pollution source independently, and then, taken together. Seasonal benefit estimates are presented for each scenario. Coupled with information on the most cost effective means of generating the scenarios, these estimates provide a useful starting point for a quantitative assessment of the net recreation benefits of policies to improve the quality of New Hampshire lakes.
Vectorial light-matter interaction -- exploring spatially structured complex light fields
Creators: name: Wang, Jinwen
name: Castellucci, Francesco
name: Franke-Arnold, Sonja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Research on spatially-structured light has seen an explosion in activity over the past decades, powered by technological advances for generating such light, and driven by questions of fundamental science as well as engineering applications. In this review we highlight work on the interaction of vector light fields with atoms, and matter in general. This vibrant research area explores the full potential of light, with clear benefits for classical as well as quantum applications.
REGIONAL DIFFERENCES IN THE CONTRIBUTION OF OFF-FARM WORK TO INCOME INEQUALITY
Creators: name: El-Osta, Hisham S.
name: Bernat, G. Andrew
name: Ahearn, Mary Clare
name: El-Osta, Hisham S.
name: Bernat, G. Andrew
name: Ahearn, Mary Clare
Publisher: name: Unknown
Year: 1995
Subjects: Labor and Human Capital

description: This paper uses the concept of the Gini Coefficient and data from the 1991 Farm Costs and Returns Survey (FCRS) to measure the role of off-farm income and that of other income sources in the size distribution of farm operator households' total personal income. Disaggregated FCRS data by region and by level of participation in off-farm employment show that nonparticipating farm operator households have, as a group, higher income inequality than participating households. The results also indicate that, irrespective of the off-farm work status of the farm operator household, the distribution of income among households in the North Central region is least unequal and that in the West is most unequal.
Ανταγωνισμός από ξένες τράπεζες και κερδοφορία τραπεζών
Creators: name: Μάστορη, Νίκη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Είσοδος ξένων τραπεζών
subject: Κερδοφορία

description: Βασικός στόχος της διπλωματικής εργασίας είναι η διερεύνηση της επίδρασης της εισόδου των ξένων τραπεζών στην κερδοφορία του τραπεζικού τομέα. Επιπρόσθετα, αναλύονται και εξετάζονται οι καθοριστικοί παράγοντες της τραπέζης, του κλάδου και οι μακροοικονομικοί παράγοντες που μπορούν να επηρεάσουν την κερδοφορία. Στην εμπειρική μελέτη χρησιμοποιούνται τρεις δείκτες κερδοφορίας: το καθαρό περιθώριο επιτοκίου (NIM), η απόδοση του ενεργητικού (ROA) και η απόδοση των ιδίων κεφαλαίων (ROE). Η οικονομετρική τεχνική που εφαρμόζεται είναι η μέθοδος Panel General To Specific με δεδομένα για τις 27 χώρες της Ευρωπαϊκής Ενώσεως, το Ηνωμένο Βασίλειο, τις Ηνωμένες Πολιτείες και τον Καναδά κατά την περίοδο 2000-2017. Τα αποτελέσματα δείχνουν ότι η είσοδος των ξένων τραπεζών σχετίζεται θετικά και σημαντικά με την κερδοφορία.
THE PROFITABILITY OF SUSTAINABLE AGRICULTURE ON A REPRESENTATIVE GRAIN FARM IN THE MID-ATLANTIC REGION, 1981-89: COMMENT
Creators: name: Roberts, Wayne S.
name: Swinton, Scott M.
name: Roberts, Wayne S.
name: Swinton, Scott M.
Publisher: name: Unknown
Year: 1995
Subjects: Agribusiness

description: A long term whole farm analysis comparing conventional and low-input farming systems is reviewed. A computational error led to the mistaken conclusion that conventional farming with government programs is less preferred by risk-averse farmers than the low input alternative. The greater income variance of conventional agriculture need not make it less preferred provided a higher mean income sufficiently offsets the higher variance.
Additional file 5 of PDX models of human lung squamous cell carcinoma: consideration of factors in preclinical and co-clinical applications
Creators: name: Hae-Yun Jung
name: Kim, Tae Ho
name: Jong-Eun Lee
name: Kim, Hong Kwan
name: Cho, Jong Ho
name: Choi, Yong Soo
name: Sumin Shin
name: Se-Hoon Lee
name: Hwanseok Rhee
name: Lee, Hee Kyung
name: Choi, Hyun Jung
name: Jang, Hye Yoon
name: Seungjae Lee
name: Kang, Jung Hee
name: Choi, Young Ae
name: Sanghyuk Lee
name: Jinseon Lee
name: Choi, Yoon La
name: Jhingook Kim
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 5: Table S5. Somatic mutations and Differently expression genes (DEGs) in LUSC patients and PDX models.
Field Theory Renormalization Group: The Tomonaga-Luttinger Model Revisited
Creators: name: Ferraz, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We apply field theoretical renormalization group (RG) methods to describe the Tomonaga-Luttinger model as an important test ground to deal with spin-charge separation effects in higher spatial dimensions. We compute the anomalous dimension associated with the one-particle Green's functions $G_{(a)R}$. We calculate the RG equations for the renormalized forward couplings $g_{2R}$ and $g_{4R}$ up to two-loop order and demonstrate that they don't flow in the vicinities of the Fermi points (FPs). We solve the Callan-Symanzik equation for $G_{(a)R}$ in the neighborhood of the FPs. We calculate the related spectral function and the momentum distribution function at $p=k_{F},p_{0}=ω$. We compute the renormalized one-particle irreducible function $Γ_{(+)R}^{(2)}(p,p_{0}=0;Λ)$ and show it carries important spin-charge separation effects in agreement with well known results. Finally we discuss the implementation of the RG scheme taking into account the important simplifications produced by the Ward identities.
description: 12 pages, 12 figures. Typos corrected and new references added
CMB Constraints on the Holographic Dark Energy Model
Creators: name: Kao, Hsien-Chung
name: Lee, Wo-Lung
name: Lin, Feng-Li
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the angular scale of the acoustic oscillation from the BOOMERANG and WMAP data on the cosmic microwave background (CMB) to constrain the holographic dark energy model recently proposed by Li. We find that only the phantom-like holographic dark energy survives the cosmological tests. This is, however, inconsistent with the positive energy condition implicitly assumed in constructing Li's model. Therefore the model is marginally ruled out by the present CMB data. As a supplementary check, we also calculate the suppression of the matter density fluctuation due to the late time integrated Sach-Wolfe effect by the holographic dark energy, the result is within the tolerance of the cosmic variance. Some aspect about the saturation of the cosmic holographic bound is also discussed.
description: 13 pages, 4 figures;v2 point out the conflict between energy condition and cmb constraint;v3 add references, redo ISW part
THE FEASIBILITY OF POULTRY LITTER TRANSPORTATION FROM ENVIRONMENTALLY SENSITIVE AREAS TO DELTA ROW CROP PRODUCTION
Creators: name: Govindasamy, Ramu
name: Cochran, Mark J.
name: Govindasamy, Ramu
name: Cochran, Mark J.
Publisher: name: Unknown
Year: 1995
Subjects: Livestock Production/Industries

description: Arkansas ranks first in broiler production in the USA with more than a billion broiler and 1.5 million tons of litter produced in 1993. Transporting litter from western to eastern Arkansas can accomplish two goals: 1) avoid potential threat to clean water in western Arkansas and 2) can increase productivity of graded lands in the Delta. This paper examines the feasibility of litter transport from areas of high poultry concentrations to the Delta for use as a soil amendment. We establish the conditions for economical litter transport from source to destinations and determine the optimal rates of litter applications. The results suggest that it is economical to transport significant portions of litter.
DESED_task pre-trained models
Creators: name: Turpault, Nicolas
name: Cornell, Samuele
name: Ronchini, Francesca
name: Serizel, Romain
Publisher: name: Zenodo
Year: 2021

description: Pretrained model using DESED_task recipes. FILENAME.ckpt correpsonds to a train model
 FILENAME.tar.gz corresponds to the trained model along with logs (tensorboard, predictions, etc.)
Additional file 6 of PDX models of human lung squamous cell carcinoma: consideration of factors in preclinical and co-clinical applications
Creators: name: Hae-Yun Jung
name: Kim, Tae Ho
name: Jong-Eun Lee
name: Kim, Hong Kwan
name: Cho, Jong Ho
name: Choi, Yong Soo
name: Sumin Shin
name: Se-Hoon Lee
name: Hwanseok Rhee
name: Lee, Hee Kyung
name: Choi, Hyun Jung
name: Jang, Hye Yoon
name: Seungjae Lee
name: Kang, Jung Hee
name: Choi, Young Ae
name: Sanghyuk Lee
name: Jinseon Lee
name: Choi, Yoon La
name: Jhingook Kim
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 6: Figure S1. Rate of successful engraftment along the LUSC PDX passages.
Molecular heat pump
Creators: name: Segal, Dvira
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We propose a novel molecular device that pumps heat against a thermal gradient. The system consists of a molecular element connecting two thermal reservoirs that are characterized by different spectral properties. The pumping action is achieved by applying an external force that periodically modulates molecular levels. This modulation affects periodic oscillations of the internal temperature of the molecule and the strength of its coupling to each reservoir resulting in a net heat flow in the desired direction. The heat flow is examined in the slow and fast modulation limits and for different modulation waveforms, thus making it possible to optimize the device performance.
title: Dynamics of a magnetic gear with two cogging-free operation modes
Creators: name: Hartung, Stefan
name: Rehberg, Ingo
Publisher: name: University of Bayreuth
Year: 2020
Subjects: subject: Couplings
subject: Gears
subject: Permanent magnets
subject: Permanent magnet machines
subject: Rotating machines
subject: 530

description: The coupling of two rotating spherical magnets is investigated experimentally. For two specific angles between the input and output rotation axes, a cogging-free coupling is observed, where the driven magnet is phase-locked to the driving one. The striking difference between these two modes of operation is the reversed sense of rotation of the driven magnet. For other angles, the experiments reveal a more complex dynamical behavior, which is divided in three different classes. This is done by analyzing the deviation from a periodic motion of the driven magnet, and by measuring the total harmonic distortion of this rotation. The experimental results can be understood by a mathematical model based on pure dipole–dipole interaction, with the addition of adequate friction terms.
title:  Information Visualization Methods and Techniques Using Web Services
Creators: name: Dupigny, Kevin
Publisher: name: Old Dominion University Libraries
Year: 2006

description: Data, even in small amounts, can be difficult to interpret quickly and efficiently. Data domains are continually expanding and making this data available and usable in collaborative data environment is a challenge that was not addressed by legacy systems. Such a framework would make the existence of a global information sharing system feasible. Visualizing this complex dataset presents a complex task for current static interface solutions. A flexible layered service oriented model is presented in this work to approach this challenge. The visual scope of human perception is largely untapped by today's data visualization applications. Human mental processes are adept at operating on, identifying, and relating symbolic information. Another obstacle to effective information visualization is the subjectivity of user interpretations, which makes a cure-all interface virtually nonexistent. Most generalizations are not useful because interface conventions are highly restricted by the data type that must be visualized. Concepts and methods within the visualization domain should reduce user mental costs, allow quick navigation of data and allow the user control over their "data perspective."
THE ALLOCATION OF LISA RESEARCH AND EXTENSION FUNDING
Creators: name: Abler, David G.
name: Musser, Wesley N.
name: Abler, David G.
name: Musser, Wesley N.
Publisher: name: Unknown
Year: 1995
Subjects: Teaching/Communication/Extension/Profession

description: This article considers the political, economic, and environmental factors associated with the allocation of federal LISA (Low Input/Sustainable Agriculture) funds among states. A tobit model is estimated with LISA allocations as the dependent variable. Results indicate that pressure groups are important. LISA funding depends positively on membership in environmental organizations, the number of farms, and the size of the rural-nonfarm population, while it depends negatively on the size of the urban population. States with host LISA institutions receive significantly more funding, as do states with Senators in leadership positions on key congressional agricultural committees.
Additional file 1 of Stand When You Can: development and pilot testing of an intervention to reduce sedentary time in assisted living
Creators: name: M. L. Voss
name: J. P. Pope
name: R. Larouche
name: Copeland, J. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Table S1. Stand When You Can Intervention Strategies.
The imprint of large-scale flows on turbulence
Creators: name: Alexakis, A.
name: Mininni, P. D.
name: Pouquet, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the locality of interactions in hydrodynamic turbulence using data from a direct numerical simulation on a grid of 1024^3 points; the flow is forced with the Taylor-Green vortex. An inertial range for the energy is obtained in which the flux is constant and the spectrum follows an approximate Kolmogorov law. Nonlinear triadic interactions are dominated by their non-local components, involving widely separated scales. The resulting nonlinear transfer itself is local at each scale but the step in the energy cascade is independent of that scale and directly related to the integral scale of the flow. Interactions with large scales represent 20% of the total energy flux. Possible explanations for the deviation from self-similar models, the link between these findings and intermittency, and their consequences for modeling of turbulent flows are briefly discussed.