cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cardiovascular response to harassment and the influence of apology strategies on recovery period
Creators: name: Anderson, Jeremy C.
Publisher: name: University of British Columbia
Year: 2009

description: 184 participants (92 male, 92 female) performed a laboratory stress task involving mental arithmetic in a study examining the influence of apology strategies on cardiovascular recovery from anger provocation involving harassment. Participants completed the Cook-Medley Hostility Scale prior to the laboratory session, to assess their degree of cynicism. Participants were randomly assigned to one of four conditions: (1) non-harassed Control, (2) harassed/Good Apology, (3) harassed/Pseudo-apology, or (4) harassed/Delayed Apology. Measures of systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR), and samples of salivary Cortisol were taken at consecutive baseline, task and return to baseline periods. Results indicate that verbal harassment resulted in increased reported anger and increased cardiovascular reactivity in participants, but did not result in slower overall recovery than was seen in Controls. Participants who received a genuine apology displayed faster decreases in self-reported anger than those who received a fake apology, termed a pseudo-apology. Participants low in cynicism displayed little i f any difference in cardiovascular recovery between apology conditions, while those higher in cynicism displayed faster SBP recovery when they received a genuine apology. High-cynical individuals displayed similar SBP recovery when given a pseudo-apology compared to when given no apology. Men typically displayed slower overall SBP recovery than women and men displayed the fastest H R recovery when given a pseudo-apology. Asian participants displayed slower SBP recovery when they received no apology at the beginning of the recovery period. It is concluded that a genuine apology can accelerate recovery from anger provocation but only in certain population subgroups.
Συγκριτική μελέτη μορφών του πίνακα κατάταξης, ως στοιχείο παιχνιδοποίησης, ως προς τα κίνητρα, την εμπλοκή και τα μαθησιακά αποτελέσματα των μαθητών Στ' Δημοτικού, με βάση τον τύπο της προσωπικότητας των παικτών, στο θέμα της ασφάλειας στο διαδίκτυο
Creators: name: Χριστοβασίλης, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Παιχνιδοποίηση
subject: Ασφάλεια διαδικτύου
subject: Εξατομίκευση μάθησης
subject: Κίνητρα
subject: Εμπλοκή
subject: Μαθησιακά αποτελέσματα
subject: Hexad scale

description: Η παιχνιδοποίηση είναι ένας τομέας εξαιρετικά δυναμικός τόσο στον τομέα του marketing όσο και στον εκπαιδευτικό τομέα. Οι απαιτήσεις της κοινωνίας του 21ου αιώνα απαιτούν ψηφιακά εκπαιδευμένους πολίτες που να μπορούν να πλοηγούνται στο Διαδίκτυο με ασφάλεια και κριτική σκέψη. Στο πλαίσιο αυτό, αρωγός καθίσταται η παιχνιδοποίηση που πάει ένα βήμα παραπέρα υιοθετώντας μια χρηστοκεντρική αντίληψη. Στο πλαίσιο αυτό, μελετήθηκε ο πίνακας κατάταξης στην κλασσική και σε μια εναλλακτική μορφή του, με βάση τον τύπο προσωπικότητας παίκτη που είναι ο κάθε μαθητής όπως προκύπτει από το Hexad Scale, με τη συνδρομή της εκπαιδευτικής πλατφόρμας Edmodo. Τα δεδομένα αξιολογήθηκαν με γνώμονα το κίνητρο των μαθητών, την εμπλοκή τους στην τάξη και τα μαθησιακά αποτελέσματα στο θέμα της Ασφάλειας στο Διαδίκτυο. Η ανάλυση των στατιστικών αποτελεσμάτων έδειξε ότι από το σύνολο των ερευνητικών υποθέσεων, λιγότερο από τις μισές έδειξαν ότι υπήρχε στατιστικά σημαντική διαφορά. Για το λόγο αυτό, έγινε ερμηνεία των αποτελεσμάτων αυτών και αναφορά στους περιορισμούς της έρευνας, καθώς και προτάσεις για μελλοντική έρευνα.
Global and high-resolution damage quantification in dual-phase steel bending samples with varying stress states
Creators: name: Meya, Rickmer
name: Kusche, Carl F.
name: Löbbe, Christian
name: Al-Samman, Talal
name: Korte-Kerzel, Sandra
name: Tekkaya, A. Erman
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Damage
subject: Characterization
subject: Automated void recognition
subject: Density
subject: Bending
subject: Stress superposition
subject: 620
subject: 670
subject: Werkstoffschädigung
subject: Werkstoffprüfung
subject: Automatisches Prüfen
subject: Lufteinschluss
subject: Dichtebestimmung
subject: Rasterelektrochemisches Mikroskop
subject: Biegen
subject: Spannungsumlagerung

description: In a variety of modern, multi-phase steels, damage evolves during plastic deformation in the form of the nucleation, growth and coalescence of voids in the microstructure. These microscopic sites play a vital role in the evolution of the materials’ mechanical properties, and therefore the later performance of bent products, even without having yet led to macroscopic cracking. However, the characterization and quantification of these diminutive sites is complex and time-consuming, especially when areas large enough to be statistically relevant for a complete bent product are considered. Here, we propose two possible solutions to this problem: an advanced, SEM-based method for high-resolution, large-area imaging, and an integral approach for calculating the overall void volume fraction by means of density measurement. These are applied for two bending processes, conventional air bending and radial stress superposed bending (RSS bending), to investigate and compare the strain- and stress-state dependent void evolution. RSS bending reduces the stress triaxiality during forming, which is found to diminish the overall formation of damage sites and their growth by the complimentary characterization approaches of high-resolution SEM and global density measurements.
description: Metals;9(3)
ASSET FIXITY, ASSET SPECIFICITY AND REGIONAL ECONOMIC CHANGE: HYPOTHESIS AND IMPLICATIONS
Creators: name: Ward, William A.
name: Hite, James C.
name: Ward, William A.
name: Hite, James C.
Publisher: name: Unknown
Year: 1999
Subjects: Industrial Organization

description: That asset specificity and asset fixity are impediments to economic adjustment is well understood in the literatures of industrial organization and agricultural economics. In this paper, we show that spatial factors can plausible be expected to be arguments in functions that define asset fixity and specificity and, hence, asset fixity may be systematically related to space. The implications with regard to differences across space in rates of adjustment to market signals suggest that the short run is longer in remote than in less remote places, which may prove useful in explaining the behavior of a spatial economic system during times of rapid technological change.
Looking for forward backward asymmetries in $B\to K μ^+ μ^-$ and $K^+\to π^+μ^+μ^-$
Creators: name: Chen, Chuan-Hung
name: Geng, Chao-Qiang
name: Giri, Anjan K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of scalar interaction affecting the forward backward asymmetry in the decay mode $B\to K μ^+ μ^-$. Using the scalar contribution and advocating Cheng-Sher type ansatz we obtain sizable forward backward asymmetry. Furthermore, we study the effect of the scalar interaction in $K^+ \to π^+ μ^+ μ^-$. It is pointed out that non-zero forward backward asymmetry in $B\to K l^+ l^-$, if found in future B-factories, may indicate the new physics in the scalar sector.
description: 11 pages, 3 figures, version to appear in Phys. Letter. B
Orbital selectivity in electron correlations and superconducting pairing of iron-based superconductors
Creators: name: Yu, Rong
name: Hu, Haoyu
name: Nica, Emilian M.
name: Zhu, Jian-Xin
name: Si, Qimiao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electron correlations play a central role in iron-based superconductors. In these systems, multiple Fe $3d$-orbitals are active in the low-energy physics, and they are not all degenerate. For these reasons, the role of orbital-selective correlations has been an active topic in the study of the iron-based systems. In this paper, we survey the recent developments on the subject. For the normal state, we emphasize the orbital-selective Mott physics that has been extensively studied, especially in the iron chalcogenides, in the case of electron filling $n \sim 6$. In addition, the interplay between orbital selectivity and electronic nematicity is addressed. For the superconducting state, we summarize the initial ideas for orbital-selective pairing, and discuss the recent explosive activities along this direction. We close with some perspectives on several emerging topics. These include the evolution of the orbital-selective correlations, magnetic and nematic orders and superconductivity as the electron filling factor is reduced from $6$ to $5$, as well as the interplay between electron correlations and topological bandstructure in iron-based superconductors.
description: 26 pages, 8 figures
The String Theory on AdS_3 as a Marginal Deformation of a Linear Dilaton Background
Creators: name: Giribet, Gaston
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate N-point string scattering amplitudes in AdS_3 space. Based on recent observations on the solutions of KZ and BPZ-type differential equations, we discuss how to describe the string theory in AdS_3 as a marginal deformation of a (flat) linear dilaton background. This representation resembles the called "discrete light-cone Liouville" realization as well as the FZZ dual description in terms of the sine-Liouville field theory. Consequently, the connection and differences between those and this realization are discussed. The free field representation presented here permits to understand the relation between correlators in both Liouville and WZNW theories in a very simple way. Within this framework, we discuss the spectrum and interactions of strings in Lorentzian AdS_3.
description: 30 pages, no figures. Some minor typos corrected; e.g. minor typo in Eq. (5) and Eq. (23)
TA'LIM JARAYONIDA PEDAGOGIK TEXNOLOGIYALARDAN SAMARALI FOYDALANISHNING XUSUSIYATLARI
Creators: name: Gulchehra Safarovna Pardayeva Oʻzbekiston-Finlandiya pedagogika instituti  Pedagogika kafedrasi katta o'qituvchisi,  gulisaforovna68@yandex.ru Xaqmurodova Amina Dilshodovna OʻzFIPI Boshlang'ich ta'lim yo'nalishi 3- bosqich talabasi
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqola zamonaviy ta’lim jarayonida pedagogik texnologiyasidan foydalanish xususiyatlari ochib berilgan. Bilim, ko’nikma va malakalarini shakllantirish jarayoniga zamonaviy pedagogik texnologiyalarni qo’llash bilan bog’liq bo’lgan ijobiy tomonlarni va muammolarni yoritib berilgan.
THE NEW ECONOMICS OF DISTANCE: LONG-TERM TRENDS IN INDEXES OF SPATIAL FRICTION
Creators: name: Ward, William A.
name: Bhattarai, Madhusudan
name: Huang, Pei
name: Ward, William A.
name: Bhattarai, Madhusudan
name: Huang, Pei
Publisher: name: Unknown
Year: 1999
Subjects: Industrial Organization

description: Distance-related costs have changed at different rates across categories of resource flows and across modes and media between 1960 and 1998. The cost of moving knowledge/information has dropped much faster than the costs of moving people or materials. The costs of processing and moving information have dropped by 98% and 92% respectively, in real terms since 1960. In addition, there are big differences in the rates of change within the real costs of moving people using different travel modes--just as big differences exist within the real costs of moving materials using different modes. For example, the real costs of moving materials by domestic rail and inland waterway have decreased by 58% and 42% in real terms, respectively, while inter-city trucking costs have not changed significantly in real terms since 1960. Thus, this paper suggests that the 'new economics of distance' is not about the disappearance of distance nor the demise of borders as factors in economics. Rather, 'the new economics of distance' is about the increasing role played by logistics management and the adjustment processes that are occurring as firms creatively seek to substitute between types of resources and between the modes and media for moving those resources.
title: Ανάπτυξη νέων προϊόντων καταναλωτικής πίστης - μια διερευνητική μελέτη
title: The development of new products of consumer credit - an exploratory study
titleType: AlternativeTitle
Creators: name: Κεφάλας, Δημήτρης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Ανάπτυξη νέων προϊόντων
subject: Τραπεζικά προϊόντα
subject: Προϊόντα καταναλωτικής πίστης

description: Οι σύγχρονες συνθήκες αγοράς και ανταγωνισμού απαιτούν μία έντονη προσπάθεια δημιουργίας νέων προϊόντων, η οποία γίνεται αντιληπτή και από τους υψηλούς αριθμούς νέων προϊόντων που συνεχώς καταγράφονται. Για την επιτυχία των νέων προϊόντων απαιτούνται καινοτόμες στρατηγικές καθώς όλα τα προϊόντα αργά ή γρήγορα έρχονται στο στάδιο του κορεσμού προκαλώντας μείωση στα κέρδη. Έτσι, κάθε εταιρία που ενδιαφέρεται να διατηρηθεί ανταγωνιστική και κερδοφόρα, πρέπει συνεχώς να παρουσιάζει προϊόντα καλύτερα σε απόδοση και ποιότητα από αυτά του ανταγωνισμού. Τα ίδια δεδομένα ισχύουν και στον τραπεζικό τομέα. Η παρούσα διπλωματική εξετάζει τη διαδικασία ανάπτυξης νέων προϊόντων γενικότερα και ειδικότερα των τραπεζικών προϊόντων καταναλωτικής πίστης. Στο πρώτο μέρος της διπλωματικής εργασίας, αναλύεται η θεωρία γύρω από την ανάπτυξη νέων προϊόντων και πως αυτή εφαρμόζεται στα προϊόντα καταναλωτικής πίστης. Στο δεύτερο μέρος, παρουσιάζεται η διαγνωστική έρευνα που έγινε τη χρονική περίοδο προ οικονομικής κρίσης και κατά τη διάρκεια της κρίσης στην Ελλάδα σχετικά με την ανάπτυξη προϊόντων καταναλωτικής πίστης. Τέλος, συγκρίνονται τα δεδομένα από τις δύο εξεταζόμενες χρονικές περιόδους και παρουσιάζονται αναλυτικά τα συμπεράσματα που προέκυψαν από τη συγκριτική ανάλυση ενώ παρατίθενται παράλληλα προτάσεις για την περαιτέρω διερεύνηση του θέματος.
Tunable optical nanocavity of iron-garnet with a buried metal layer
Creators: name: Kuz'michev, Alexey N.
name: Kreilkamp, Lars E.
name: Nur-E-Alam, Mohammad
name: Bezus, Evgeni
name: Vasiliev, Mikhail
name: Akimov, Iliya A.
name: Alameh, Kamal
name: Bayer, Manfred
name: Belotelov, Vladimir I.
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: Planar waveguides
subject: Surface plasmon-polariton
subject: Faraday effect
subject: Gyrotropic media
subject: Optical nanocavity
subject: Metal nanocavity
subject: 530
subject: Polariton
subject: Oberflächenplasmon
subject: Faraday-Effekt

description: We report on the fabrication and characterization of a novel magnetophotonic structure designed as iron garnet based magneto-optical nanoresonator cavity constrained by two noble metal mirrors. Since the iron garnet layer requires annealing at high temperatures, the fabrication process can be rather challenging. Special approaches for the protection of metal layers against oxidation and morphological changes along with a special plasma-assisted polishing of the iron garnet layer surface were used to achieve a 10-fold enhancement of the Faraday rotation angle (up to 10.8∘/μm) within a special resonance peak of 12 nm (FWHM) linewidth at a wavelength of 772 nm, in the case of a resonator with two silver mirrors. These structures are promising for tunable nanophotonics applications, in particular, they can be used as magneto-optical (MO) metal-insulator-metal waveguides and modulators.
description: Materials;8(6)
Λήψη αποφάσεων διαμόρφωσης τιμών σε συναλλαγές Β2Β
Creators: name: Κοσμαδάκη, Ανδρονίκη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Συναλλαγές Β2Β
subject: Δυναμική τιμολόγηση
subject: Μοντέλα προσομοίωσης
subject: Μέθοδος Monte Carlo

description: Αντικείμενο μελέτης της παρούσας εργασίας αποτελεί η δημιουργία και η μελέτη μοντέλου διαμόρφωσης τιμών σε συναλλαγές B2B βιομηχανίας επεξεργασίας ύδατος. Σκοπός είναι η λήψη των αρχικών αποτελεσμάτων του μοντέλου και η δοκιμή εφαρμογής του σε διαφορετικά σενάρια (προφίλ πελατών, στρατηγικές κλπ) με τη χρήση προσομοίωσης Monte Carlo. Ειδικότερα, μελετώνται τέσσερα διαφορετικά σενάρια και εξετάζεται η ανταπόκριση του μοντέλου σε διαφορετικές στρατηγικές για κάθε σενάριο. Αποδεικνύεται πως η μέθοδος Monte-Carlo μπορεί να αποτελέσει πρωτότυπο εργαλείο στη διαμόρφωση τιμών και να εφαρμοστεί σε διαφορετικά μοντέλα με διαφορετικά χαρακτηριστικά και παραμέτρους.
SCHOOL QUALITY AND PROPERTY VALUES IN GREENVILLE, SOUTH CAROLINA
Creators: name: Owusu-Edusei, Kwame
name: Espey, Molly
name: Owusu-Edusei, Kwame
name: Espey, Molly
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: This study estimates the impact of school quality on property values within the city limits of Greenville, South Carolina. This study differs from others in its use of a relative, rather than an absolute measure of school quality. We apply a hedonic pricing model to estimate the impact of K-12 rankings on the real constant-quality housing values. Based on 3,731 housing transactions carried out from 1994 to 2000, our results suggest that those who choose to live within the city limits of the study pay a premium to live in high quality school attendance areas. Therefore, high-ranked schools have values capitalized into single-family house prices. Further, greater distance to assigned K-12 schools has a negative impact on the value of the property.
Categorified Algebra and Quantum Mechanics
Creators: name: Morton, Jeffrey
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Category Theory (math.CT)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81P05 (Primary) 05A15, 18D10, 18B40 (Secondary)

description: Interest in combinatorial interpretations of mathematical entities stems from the convenience of the concrete models they provide. Finding a bijective proof of a seemingly obscure identity can reveal unsuspected significance to it. Finding a combinatorial model for some mathematical entity is a particular instance of the process called ``categorification''. Examples include the interpretation of N as the Burnside rig of the category of finite sets with product and coproduct, and the interpretation of N[x] as the category of combinatorial species. This has interesting applications to quantum mechanics, and in particular the quantum harmonic oscillator, via Joyal's ``species'', a new generalization called ``stuff types'', and operators between these, which can be represented as rudimentary Feynman diagrams for the oscillator. In quantum mechanics, we want to represent states in an algebra over the complex numbers, and also want our Feynman diagrams to carry more structure than these ``stuff operators'' can do, and these turn out to be closely related. We will show how to construct a combinatorial model for the quantum harmonic oscillator in which the group of phases, U(1), plays a special role. We describe a general notion of ``M-Stuff Types'' for any monoid M, and see that the case M=U(1) provides an interpretation of time evolution in the combinatorial setting, as well as other quantum mechanical features of the harmonic oscillator.
description: LaTeX, 67 pages, 25 figures
Computational recognition of RNA splice sites by exact algorithms for the quadratic traveling salesman problem
Creators: name: Fischer, Anja
name: Fischer, Frank
name: Jäger, Gerold
name: Keilwagen, Jens
name: Molitor, Paul
name: Grosse, Ivo
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: Splice site
subject: Permuted Markov model
subject: Permuted variable length Markov model
subject: Quadratic traveling salesman problem
subject: Combinatorial optimization
subject: Dynamic programming
subject: Branch and bound
subject: Branch and cut
subject: Integer linear programming
subject: 510
subject: RNA-Spleißen
subject: Markov-Modell
subject: Travelling-salesman-Problem

description: One fundamental problem of bioinformatics is the computational recognition of DNA and RNA binding sites. Given a set of short DNA or RNA sequences of equal length such as transcription factor binding sites or RNA splice sites, the task is to learn a pattern from this set that allows the recognition of similar sites in another set of DNA or RNA sequences. Permuted Markov (PM) models and permuted variable length Markov (PVLM) models are two powerful models for this task, but the problem of finding an optimal PM model or PVLM model is NP-hard. While the problem of finding an optimal PM model or PVLM model of order one is equivalent to the traveling salesman problem (TSP), the problem of finding an optimal PM model or PVLM model of order two is equivalent to the quadratic TSP (QTSP). Several exact algorithms exist for solving the QTSP, but it is unclear if these algorithms are capable of solving QTSP instances resulting from RNA splice sites of at least 150 base pairs in a reasonable time frame. Here, we investigate the performance of three exact algorithms for solving the QTSP for ten datasets of splice acceptor sites and splice donor sites of five different species and find that one of these algorithms is capable of solving QTSP instances of up to 200 base pairs with a running time of less than two days.
description: Computation;3(2)
A Burst and Simultaneous Short-Term Pulsed Flux Enhancement from the Magnetar Candidate 1E 1048.1-5937
Creators: name: Gavriil, Fotis P.
name: Kaspi, Victoria M.
name: Woods, Peter M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the 2004 June 29 burst detected from the direction of the Anomalous X-ray Pulsar (AXP) 1E 1048.1-5937 using the Rossi X-ray Timing Explorer (RXTE). We find a simultaneous increase of ~3.5 times the quiescent value in the 2-10 keV pulsed flux of 1E 1048.1-5937 during the tail of the burst which identifies the AXP as the burst's origin. The burst was overall very similar to the two others reported from the direction of this source in 2001. The unambiguous identification of 1E 1048.1-5937 as the burster here confirms it was the origin of the 2001 bursts as well. The epoch of the burst peak was very close to the arrival time of 1E 1048.1-5937's pulse peak. The burst exhibited significant spectral evolution with the trend going from hard to soft. During the 11 days following the burst, the AXP was observed further with RXTE, XMM-Newton and Chandra. Pre- and post-burst observations revealed no change in the total flux or spectrum of the quiescent emission. Comparing all three bursts detected thus far from this source we find that this event was the most fluent (>3.3x10^-8 erg/cm^2 in the 2-20 keV band), had the highest peak flux (59+/-9x10^-10 erg/s/cm^2 in the 2-20 keV band), and the longest duration (>699 s). The long duration of the burst differentiates it from Soft Gamma Repeater (SGR) bursts which have typical durations of ~0.1 s. Bursts that occur preferentially at pulse maximum, have fast-rises and long X-tails containing the majority of the total burst energy have been seen uniquely from AXPs. The marked differences between AXP and SGRs bursts may provide new clues to help understand the physical differences between these objects.
description: 24 pages, 4 figures, submitted to the Astrophysical Journal
Deep drawing of high-strength tailored blanks by using tailored tools
Creators: name: Mennecart, Thomas
name: Ul Hassan, Hamad
name: Güner, Alper
name: Ben Khalifa, Noomane
name: Hosseini, Mohamad
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Tailored blanks
subject: Hybrid deep drawing tools
subject: High strength steels
subject: Tailored tools
subject: 620
subject: 670

description: In most forming processes based on tailored blanks, the tool material remains the same as that of sheet metal blanks without tailored properties. A novel concept of lightweight construction for deep drawing tools is presented in this work to improve the forming behavior of tailored blanks. The investigations presented here deal with the forming of tailored blanks of dissimilar strengths using tailored dies made of two different materials. In the area of the steel blank with higher strength, typical tool steel is used. In the area of the low-strength steel, a hybrid tool made out of a polymer and a fiber-reinforced surface replaces the steel half. Cylindrical cups of DP600/HX300LAD are formed and analyzed regarding their formability. The use of two different halves of tool materials shows improved blank thickness distribution, weld-line movement and pressure distribution compared to the use of two steel halves. An improvement in strain distribution is also observed by the inclusion of springs in the polymer side of tools, which is implemented to control the material flow in the die. Furthermore, a reduction in tool weight of approximately 75% can be achieved by using this technique. An accurate finite element modeling strategy is developed to analyze the problem numerically and is verified experimentally for the cylindrical cup. This strategy is then applied to investigate the thickness distribution and weld-line movement for a complex geometry, and its transferability is validated. The inclusion of springs in the hybrid tool leads to better material flow, which results in reduction of weld-line movement by around 60%, leading to more uniform thickness distribution.
description: Materials;9(2)
Volume elements and torsion
Creators: name: Mosna, Ricardo A.
name: Saa, Alberto
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We reexamine here the issue of consistency of minimal action formulation with the minimal coupling procedure (MCP) in spaces with torsion. In Riemann-Cartan spaces, it is known that a proper use of the MCP requires that the trace of the torsion tensor be a gradient, $T_μ=\partial_μθ$, and that the modified volume element $τ_θ= e^θ\sqrt{g} dx^1\wedge...\wedge dx^n $ be used in the action formulation of a physical model. We rederive this result here under considerably weaker assumptions, reinforcing some recent results about the inadequacy of propagating torsion theories of gravity to explain the available observational data. The results presented here also open the door to possible applications of the modified volume element in the geometric theory of crystalline defects.
description: Revtex, 8 pages, 1 figure. v2 includes a discussion on $\lambda$-symmetry
An inert continuous microreactor for the isolation and analysis of a single microbial cell
Creators: name: Rosenthal, Katrin
name: Falke, Floris
name: Frick, Oliver
name: Dusny, Christian
name: Schmid, Andreas
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: Lab-on-a-chip
subject: Negative dielectrophoresis
subject: Direct fusion bonding
subject: Single-cell analysis
subject: Corynebacterium glutamicum
subject: 660

description: Studying biological phenomena of individual cells is enabled by matching the scales of microbes and cultivation devices. We present a versatile, chemically inert microfluidic lab-on-a-chip (LOC) device for biological and chemical analyses of isolated microorganisms. It is based on the Envirostat concept and guarantees constant environmental conditions. A new manufacturing process for direct fusion bonding chips with functional microelectrodes for selective and gentle cell manipulation via negative dielectrophoresis (nDEP) was generated. The resulting LOC system offered a defined surface chemistry and exceptional operational stability, maintaining its structural integrity even after harsh chemical treatment. The microelectrode structures remained fully functional after thermal bonding and were proven to be efficient for single-cell trapping via nDEP. The microfluidic network consisted solely of glass, which led to enhanced chip reusability and minimized interaction of the material with chemical and biological compounds. We validated the LOC for single-cell studies with the amino acid secreting bacterium Corynebacterium glutamicum. Intracellular l-lysine production dynamics of individual bacteria were monitored based on a genetically encoded fluorescent nanosensor. The results demonstrate the applicability of the presented LOC for pioneering chemical and biological studies, where robustness and chemically inert surfaces are crucial parameters for approaching fundamental biological questions at a single-cell level.
description: Micromachines;6(12)
Ανακύκλωση & επαναχρησιμοποίηση βιομηχανικών αποβλήτων
Creators: name: Λιάκου, Αθηνά
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Διαχείριση αποβλήτων
subject: Βιομηχανικά απόβλητα
subject: Ρύπανση

description: Η διαχείριση βιομηχανικών αποβλήτων είναι ένα θέμα που απασχολεί τα τελευταία χρόνια τους υπεύθυνους της πρωτογενούς και όχι μόνο παραγωγής, οι οποίοι είναι υποχρεωμένοι να τηρήσουν την περιβαλλοντική νομοθεσία, διασφαλίζοντας τόσο τα περιβαλλοντικά όσο και τα κοινωνικοοικονομικά κριτήρια που πρέπει να πληρούνται προκειμένου να εκπληρώσουν τους Στόχους Βιώσιμης Ανάπτυξης. Τα βιομηχανικά απόβλητα συνιστούν μία από τις κυριότερες μορφές ρύπανσης του περιβάλλοντος. Στην εν λόγω μεταπτυχιακή διπλωματική εργασία θίγεται το θέμα της ανακύκλωσης και της επαναχρησιμοποίησης των αποβλήτων που παράγονται από το βιομηχανικό κλάδο. Στόχος είναι η προβολή του πλαισίου μέσα από το οποίο γίνεται η διαχείριση των βιομηχανικών αποβλήτων στην Ελλάδα και στο εξωτερικό. Αρχικά, δίνονται οι ορισμοί της ιεραρχικής πυραμίδας της ανακύκλωσης των αποβλήτων (πρόληψη, επαναχρησιμοποίηση, ανακύκλωση, ανάκτηση, απόρριψη), ενώ παράλληλα γίνεται κατηγοριοποίηση των αποβλήτων βάσει της φυσικής τους κατάστασης. Κατόπιν, γίνεται αναφορά στο εγχώριο νομοθετικό καθεστώς σε επίπεδο υποδομών και δικτύων διαχείρισης βιομηχανικών αποβλήτων αλλά και στα κριτήρια αξιολόγησης για την εγκατάσταση σε μία περιοχή μιας μονάδας επεξεργασίας βιομηχανικών αποβλήτων. Συγκεκριμένα γίνεται αναφορά στα κριτήρια περιβαλλοντικής προστασίας, στα κριτήρια προστασίας υδατικών πόρων, στα πολεοδομικά και χωροταξικά κριτήρια, στα κριτήρια προστασίας πολιτιστικής κληρονομιάς, καθώς και στα οικονομικά κριτήρια. Για κάθε ένα από τα προαναφερθέντα κριτήρια δίνονται και ορισμένα παραδείγματα εφαρμογής τους στον ελλαδικό χώρο. Επιπροσθέτως, στην εργασία εξετάζονται οι τρόποι αξιοποίησης των βιομηχανικών αποβλήτων σε χώρες του εξωτερικού. Τέλος, εξετάζονται μελλοντικές προοπτικές και σύγχρονες τάσεις στο πεδίο διαχείρισης των βιομηχανικών αποβλήτων ως προς την τεχνική αλλά και τη βιωσιμότητά τους. Εστιάζοντας και σε πρότυπα και παραδείγματα άλλων χωρών, η ελληνική βιομηχανία έχει ακόμα περιθώρια βελτίωσης του τρόπου αξιοποίησης των αποβλήτων της, συμβάλλοντας στο γενικότερο πλαίσιο της κυκλικής οικονομίας αλλά και στη δημιουργία νέων θέσεων απασχόλησης.
ENVIRONMENTAL POLICY ANALYSIS AND INSTRUMENTS FOR BIODIVERSITY CONSERVATION: A REVIEW OF RECENT ECONOMIC LITERATURE
Creators: name: Bhattarai, Madhusudan
name: Hammig, Michael D.
name: Bhattarai, Madhusudan
name: Hammig, Michael D.
Publisher: name: Unknown
Year: 1998
Subjects: subject: Environmental Economics and Policy
subject: biodiversity
subject: conservation
subject: resource management

description: This paper provides a synthesis of recent literature dealing with the institutional environment, policy framework, and economic instruments used in policy analysis related to the conservation and sustainable use of biodiversity resources. The paper analyzes the economic consequences of alternative policy options and summarizes the application of these economic issues in the formulation of biodiversity protection policy. The paper also concludes that the proper understanding of underlying institutions and, if needed, institutional reforming procedures are also required to provide appropriate incentive structures for conservation and sustainable use of biodiversity resources. Illustrations of these principles and examples are taken from published accounts of biodiversity policy debates and policy implications.
Detection of liquid xenon scintillation light with a Silicon Photomultiplier
Creators: name: Aprile, E.
name: Cushman, P.
name: Ni, K.
name: Shagin, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have studied the feasibility of a silicon photomultiplier (SiPM) to detect liquid xenon (LXe) scintillation light. The SiPM was operated inside a small volume of pure LXe, at -95 degree Celsius, irradiated with an internal Am-241 alpha source. The gain of the SiPM at this temperature was estimated to be 1.8 x 10^6 with bias voltage at 52 V. Based on the geometry of the setup, the quantum efficiency of the SiPM was estimated to be 22% at the Xe wavelength of 178 nm. The low excess noise factor, high single photoelectron detection efficiency, and low bias voltage of SiPMs make them attractive alternative UV photon detection devices to photomultiplier tubes (PMTs) for liquid xenon detectors, especially for experiments requiring a very low energy detection threshold, such as neutralino dark matter searches.
GLOBAL PERSPECTIVES ON GENDER AND EQUALITY
Creators: name: MOHON RONGPHAR
name: KARENG RONGPIPI
Publisher: name: Zenodo
Year: 2024
Subjects: Global Gender Equality, Equal Treatment, Approaches, Social and Economic Benefit, And Feminist Equality.

description: Abstract

This paper will discuss the global perspective on equality. Equality means both male and female grounds. In studying the global perspective of equality, we may discuss the concept of gender equality. “Gender equality is more than a moral issue; it is a vital economic issue. For the global economy to reach its potential, we need to create conditions in which all women can reach their potential” (IMF, 2020). This concept has several important principles and approaches that will give proper information on the concept of gender equality, called global perspective of equality. In this paper, the main focus includes the principle of equal treatment, important approaches, social and economic benefit, and lastly, global feminism on gender equality.
Mapping between Witten and Lightcone String Field Theories
Creators: name: Erler, Theodore
name: Matsunaga, Hiroaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a transformation between the off-shell field variables of Witten's open bosonic string field theory and the traditional lightcone string field theory of Kaku and Kikkawa, based on Mandelstam's interacting string picture. This is accomplished by deforming the Witten vertex into lightcone cubic and quartic vertices, followed by integrating out the ghost and lightcone oscillator excitations from the string field. Surprisingly, the last step does not alter the cubic and quartic interactions and does not generate effective vertices, and leads precisely to Kaku and Kikkawa's lightcone string field theory.
description: 74 pages, 23 figures. Added appendix on the lightcone SFT action. Simplified discussion of the field transformation and the singular nature of lightcone gauge in generic SFTs, which has been called the "soft string problem."
Supersymmetric Representations and Integrable Fermionic Extensions of the Burgers and Boussinesq Equations
Creators: name: Kiselev, Arthemy V.
name: Wolf, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q53; 37K05; 37K10; 37K35; 58A50; 81T40

description: We construct new integrable coupled systems of N=1 supersymmetric equations and present integrable fermionic extensions of the Burgers and Boussinesq equations. Existence of infinitely many higher symmetries is demonstrated by the presence of recursion operators. Various algebraic methods are applied to the analysis of symmetries, conservation laws, recursion operators, and Hamiltonian structures. A fermionic extension of the Burgers equation is related with the Burgers flows on associative algebras. A Gardner's deformation is found for the bosonic super-field dispersionless Boussinesq equation, and unusual properties of a recursion operator for its Hamiltonian symmetries are described. Also, we construct a three-parametric supersymmetric system that incorporates the Boussinesq equation with dispersion and dissipation but never retracts to it for any values of the parameters.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
LABOR QUALITY AND ECONOMICS DEVELOPMENT: DEVELOPMENT STRATEGIES FOR ANDERSON COUNTY, SOUTH CAROLINA, IN THE NEW GLOBAL COMPETITION
Creators: name: Ward, William A.
name: Ward, William A.
Publisher: name: Unknown
Year: 1997
Subjects: Labor and Human Capital

description: Industry came to South Carolina in the first half of this century to find cheap labor. By the 1990s, industry was coming in search of quality labor--a change whose pace accelerates as the decade of the nineties blends into the 21st century. Potential investors who raise inquiries with the Anderson County Office of Economic Development are less and less interested in the simple cost of labor and more and more interested in the productivity of labor as measured by the value of output per dollar of labor input. Economic development, at its core, is about jobs and about quality of life. Thus, these changing demands for labor are not to be taken lightly by government, business leaders and educators in Anderson County.
Redshift-Space Distortions with the Halo Occupation Distribution I: Numerical Simulations
Creators: name: Tinker, Jeremy L.
name: Weinberg, David H.
name: Zheng, Zheng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show how redshift-space distortions of the galaxy correlation function or power spectrum can constrain the matter density parameter Omega_m and the linear matter fluctuation amplitude sigma_8. We improve on previous treatments by adopting a fully non-linear description of galaxy clustering and bias, which allows us to break parameter degeneracies by combining large-scale and small- scale distortions. We consider different combinations of Omega_m and sigma_8 and find parameters of the galaxy halo occupation distribution (HOD) that yield nearly identical galaxy correlation functions in real space. We use these HOD parameters to populate the dark matter halos of large N-body simulations, from which we measure redshift-space distortions on small and large scales. We include a velocity bias parameter alpha_v that allows the velocity dispersions of satellite galaxies in halos to be systematically higher or lower than those of dark matter. Large-scale distortions are determined by the parameter combination beta = Omega_m^{0.6}/b_g, where b_g is the galaxy bias, in agreement with linear theory. However, linear theory does not accurately describe the distortions themselves on scales accessible to our simulations. We provide fitting formulas to estimate beta from the redshift-space correlation function or power spectrum, and we show that these formulas are significantly more accurate than those in the existing literature. On small scales, the ``finger-of-god'' distortions at projected separations ~0.1 Mpc/h depend on Omega_m*alpha_v^2 but are independent of sigma_8, while at intermediate separations they depend on sigma_8 as well. One can thus use redshift-space distortions over a wide range of scales to separately determine Omega_m, sigma_8, and alpha_v. (Abridged)
description: 25 pages, submitted to Monthly Notices
ESTIMATING THE EFFECT OF HEALTH KNOWLEDGE IN THE CONSUMPTION OF SOY-BASED FOODS
Creators: name: Moon, Wanki
name: Moon, Wanki
Publisher: name: Unknown
Year: 2002
Subjects: Food Consumption/Nutrition/Food Safety

description: This paper develops empirical models to investigate whether knowledge about the health benefits of soy-based foods plays a significant role in consumers' decision to consume soy-based foods and how much to consume (consumption intensity). In addition, the impact of FDA's 1999 official confirmation of the health benefits of soy foods on consumers' willingness-to-consume soy foods or willingness-to-increase consumption frequency is examined.
TESTING PROTECTION FOR SALE IN THE FOOD INDUSTRIES
Creators: name: Lopez, Rigoberto A.
name: Hathie, Ibrahima
name: Lopez, Rigoberto A.
name: Hathie, Ibrahima
Publisher: name: Unknown
Year: 2002
Subjects: Agribusiness

description: This paper tests the Grossman-Helpman Protection for Sale model using panel data from U.S. food processing industries with endogenous protection, import penetration, and political campaign. The results support the key predictions of the model: organized industries are granted higher protection that decreases with import penetration and the price elasticity of imports. Furthermore, the presence of import quotas raises the level of protection substantially. The estimated weight on aggregate welfare is strikingly similar those found by Goldberg and Maggi (1999) and Gawande and Bandopadhyay (2000), implying that protection is not for sale in these industries.
Στρατηγικό μάνατζμεντ σε τουριστικές μικρομεσαίες επιχειρήσεις στην Ελλάδα: μελέτη περίπτωσης
Creators: name: Μπαφίτη, Βίκυ
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Στρατηγικό μάνατζμεντ
subject: Διοίκηση επιχειρήσεων
subject: Τουριστικές επιχειρήσεις
subject: Τουριστικό μάνατζμεντ
subject: Strategic management
subject: Tourism management
subject: Μικρομεσαίες επιχειρήσεις

description: Το στρατηγικό Μάνατζμεντ είναι βασικός πυλώνας τόσο ακαδημαϊκά όσο και πρακτικά καθώς είναι αναπόσπαστο κομμάτι μιας επιχείρησης. Είναι μια επιστήμη η οποία έγινε ευρέος γνωστή με αυξανόμενη πορεία τα τελευταία χρόνια, προσπαθώντας να βοηθήσει επιχειρήσεις να ανταπεξέλθουν και να ξεχωρίσουν ενόψει μιας προβληματικής κατάστασης. Η συγκεκριμένη διπλωματική στοχεύει στο να αναλύσει και να εξηγήσει τα βασικά σημεία εκείνα του μοντέλου του στρατηγικού μάνατζμεντ, θεωρητικά αλλά και πρακτικά με τη μελέτη ειδικής περίπτωσης (case study). Πιο συγκεκριμένα ο αναγνώστης μπορεί να ακολουθήσει τα μοντέλα που παρουσιάζονται και να κάνει χρήση αυτών στις επιχειρήσεις του. Υπάρχουν τρία κεφάλαια εκ των οποίων χωρίζονται σε δύο μέρη, το πρώτο μέρος διαθέτει το 1ο και 2ο κεφάλαιο με θεωρητικό υπόβαθρο και το δεύτερο μέρος διαθέτει το πρακτικό κομμάτι με τη μελέτη της ειδικής περίπτωσης (case study). Η διπλωματική είναι επικεντρωμένη στο στρατηγικό μάνατζμεντ μικρομεσαίων επιχειρήσεων με προσανατολισμό ιδιαίτερα στις τουριστικές επιχειρήσεις. Στο πρώτο κεφάλαιο υπάρχει η εισαγωγή στο στρατηγικό μάνατζμεντ, αναλύοντας τους βασικούς του όρους καθώς παρουσιάζεται η «ραχοκοκαλιά» του συγκεκριμένου μοντέλου σε θεωρητικό υπόβαθρο. Στο δεύτερο κεφάλαιο αναλύεται ο τουρισμός στην Ελλάδα, ο ξενοδοχειακός κλάδος, οι Κυκλάδες και το νησί της Πάρου. Τέλος, στο τρίτο και τελευταίο κεφάλαιο υπάρχει η μελέτη της ειδικής περίπτωσης (case study) που γίνεται ουσιαστικά η παρουσίαση της επιχείρησης «Sea Boutique Hotel» με την ανάλυση και μελέτη των βασικότερων θεμάτων στρατηγικού μάνατζμεντ.
Setting mechanical properties of high strength steels for rapid hot forming processes
Creators: name: Löbbe, Christian
name: Hering, Oliver
name: Hiegemann, Lars
name: Tekkaya, A. Erman
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Press hardening
subject: Hot forming
subject: Progressive die
subject: Control of mechanical properties
subject: High strength steel
subject: 620
subject: 670
subject: Warmumformen
subject: Formhärten
subject: Hochfester Stahl

description: Hot stamping of sheet metal is an established method for the manufacturing of light weight products with tailored properties. However, the generally-applied continuous roller furnace manifests two crucial disadvantages: the overall process time is long and a local setting of mechanical properties is only feasible through special cooling techniques. Hot forming with rapid heating directly before shaping is a new approach, which not only reduces the thermal intervention in the zones of critical formability and requested properties, but also allows the processing of an advantageous microstructure characterized by less grain growth, additional fractions (e.g., retained austenite), and undissolved carbides. Since the austenitization and homogenization process is strongly dependent on the microstructure constitution, the general applicability for the process relevant parameters is unknown. Thus, different austenitization parameters are analyzed for the conventional high strength steels 22MnB5, Docol 1400M, and DP1000 in respect of the mechanical properties. In order to characterize the resulting microstructure, the light optical and scanning electron microscopy, micro and macro hardness measurements, and the X-ray diffraction are conducted subsequent to tensile tests. The investigation proves not only the feasibility to adjust the strength and ductility flexibly, unique microstructures are also observed and the governing mechanisms are clarified.
description: Materials;9(4)
Renewal processes and fluctuation analysis of molecular motor stepping
Creators: name: Santos, Jaime E.
name: Franosch, Thomas
name: Parmeggiani, Andrea
name: Frey, Erwin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: Other Quantitative Biology (q-bio.OT)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We model the dynamics of a processive or rotary molecular motor using a renewal processes, in line with the work initiated by Svoboda, Mitra and Block. We apply a functional technique to compute different types of multiple-time correlation functions of the renewal process, which have applications to bead-assay experiments performed both with processive molecular motors, such as myosin V and kinesin, and rotary motors, such as F1-ATPase.
Predicting the solubility of pharmaceutical cocrystals in solvent/anti-solvent mixtures
Creators: name: Lange, Linda
name: Heisel, Stefan
name: Sadowski, Gabriele
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Cocrystal
subject: Crystal engineering
subject: Thermodynamics
subject: Solubility
subject: Phase diagram
subject: Solvent mixtures
subject: 660
subject: Kokristallisation
subject: Pharmazeutische Chemie

description: In this work, the solubilities of pharmaceutical cocrystals in solvent/anti-solvent systems were predicted using PC-SAFT in order to increase the efficiency of cocrystal formation processes. Modeling results and experimental data were compared for the cocrystal system nicotinamide/succinic acid (2:1) in the solvent/anti-solvent mixtures ethanol/water, ethanol/acetonitrile and ethanol/ethyl acetate at 298.15 K and in the ethanol/ethyl acetate mixture also at 310.15 K. The solubility of the investigated cocrystal slightly increased when adding small amounts of anti-solvent to the solvent, but drastically decreased for high anti-solvent amounts. Furthermore, the solubilities of nicotinamide, succinic acid and the cocrystal in the considered solvent/anti-solvent mixtures showed strong deviations from ideal-solution behavior. However, by accounting for the thermodynamic non-ideality of the components, PC-SAFT is able to predict the solubilities in all above-mentioned solvent/anti-solvent systems in good agreement with the experimental data.
description: Molecules;21(5)