cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Levumi: a web-based curriculum-based measurement to monitor learning progress in inclusive classrooms
Creators: name: Jungjohann, Jana
name: DeVries, Jeffrey M.
name: Gebhardt, Markus
name: Mühling, Andreas
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Curriculum-based measurement
subject: Progress Monitoring
subject: Web-based assessment
subject: Computer-based assessment
subject: Reading fluency
subject: Reading
subject: 370
subject: Lernen
subject: Lesen
subject: Inklusive Pädagogik
subject: Curriculumbasierte Messung

description: Our paper introduces and assesses the Levumi platform’s web-based assessment of reading fluency. One challenges of inclusive education is meeting the needs of the learners with special education needs (SEN). Children with SEN and other risk factors face an increased risk of failing in schools and manifesting academic and social problems over the time. Web-based curriculum-based measurement (CBM) can provide an effective tool to track progress of learners and limit such risks. In particular, it can ease the challenges of test administration in inclusive classrooms through automation and providing multiple difficulty levels without the need of different paper-forms. Furthermore, Levumi can help educators track children and thus provide support for learners. Levumi takes advantage of the strengths of web-based CBM to assess reading fluency in primary school students. We confirmed the reading fluency test’s test-retest reliability (n = 334), its ability to measure learning over time in individual learners with SEN (n = 8, across 14 MPs), and its applicability to learners with SEN (n = 300, including n = 46 with SEN). We evaluate Levumi’s overall usefulness in assessing different types of learners, and discuss its contributions to CBM research.
Direct control of the tunnel splitting in a one-electron double quantum dot
Creators: name: Huettel, A. K.
name: Ludwig, S.
name: Eberl, K.
name: Kotthaus, J. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quasi-static transport measurements are employed on a laterally defined tunnel-coupled double quantum dot. A nearby quantum point contact allows us to track the charge as added to the device. If charged with only up to one electron, the low-energy spectrum of the double quantum dot is characterized by its quantum mechanical interdot tunnel splitting. We directly measure its magnitude by utilizing particular anticrossing features in the stability diagram at finite source-drain bias. By modification of gate voltages defining the confinement potential as well as by variation of a perpendicular magnetic field we demonstrate the tunability of the coherent tunnel coupling.
description: High resolution pdf file available at http://www2.nano.physik.uni-muenchen.de/~huettel/research/anticrossing.pdf
Variational Quantum Algorithms for Trace Distance and Fidelity Estimation
Creators: name: Chen, Ranyiliu
name: Song, Zhixin
name: Zhao, Xuanqiang
name: Wang, Xin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Estimating the difference between quantum data is crucial in quantum computing. However, as typical characterizations of quantum data similarity, the trace distance and quantum fidelity are believed to be exponentially-hard to evaluate in general. In this work, we introduce hybrid quantum-classical algorithms for these two distance measures on near-term quantum devices where no assumption of input state is required. First, we introduce the Variational Trace Distance Estimation (VTDE) algorithm. We in particular provide the technique to extract the desired spectrum information of any Hermitian matrix by local measurement. A novel variational algorithm for trace distance estimation is then derived from this technique, with the assistance of a single ancillary qubit. Notably, VTDE could avoid the barren plateau issue with logarithmic depth circuits due to a local cost function. Second, we introduce the Variational Fidelity Estimation (VFE) algorithm. We combine Uhlmann's theorem and the freedom in purification to translate the estimation task into an optimization problem over a unitary on an ancillary system with fixed purified inputs. We then provide a purification subroutine to complete the translation. Both algorithms are verified by numerical simulations and experimental implementations, exhibiting high accuracy for randomly generated mixed states.
description: 15 pages, v2 updated some results; v3 published version
ESTIMATING FARM-LEVEL EFFECTS OF ADOPTING BIOTECHNOLOGY
Creators: name: Lin, William W.
name: Price, Gregory K.
name: Fernandez-Cornejo, Jorge
name: Lin, William W.
name: Price, Gregory K.
name: Fernandez-Cornejo, Jorge
Publisher: name: Unknown
Year: 2001
Subjects: Farm Management
Research and Development/Tech Change/Emerging Technologies

description: This study estimates farm-level effects of adopting 1997 herbicide-tolerant soybeans, Bt cotton, and herbicide-tolerant cotton and compares results obtained from various data sources. While adopters' yields are generally higher and pest control costs lower than those of nonadopters, considerable differences exist in farm-level effects across data sources and production regions.
Donor-site-directed rational assembly of heteroleptic cis-[Pd2L2L'2] coordination cages from picolyl ligands
Creators: name: Clever, Guido H.
name: Zhu, Rongmei
name: Bloch, Witold M.
name: Holstein, Julian J.
name: Mandal, Soham
name: Schäfer, Lars V.
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Coordination cages
subject: Heteroleptic assembly
subject: Self sorting
subject: Steric control
subject: Supramolecular chemistry
subject: 540

description: A donor‐site engineering approach facilitates the formation of heteroleptic [Pd2L2L′2]4+ cage structures through a favored cis‐′in2/out2′ spatial configuration of the methyl groups of 5‐ and 3‐substituted bis‐monodentate picolyl ligands with flat acridone and bent phenothiazine backbones. The heteroleptic cages were confirmed by ESI‐MS and 2D NMR experiments as well as DFT calculations, which pointed toward a cis‐configuration being energetically favored. This was further supported by the synthesis and X‐ray structure of a previously unreported cis‐[Pd(2‐picoline)4]2+ complex. The formation of homoleptic structures, however, was met with considerable steric hindrance at the PdII centers, as observed by the formation of [Pd2L3(solvent)2]4+ and [Pd2L2(solvent)4]4+ species when only one type of acridone‐based ligand was offered. In contrast, bent phenothiazine ligands with outside‐pointing methyl groups showed the ability to form interpenetrated double‐cages, as revealed by X‐ray crystallography. The general route presented herein enables the assembly of uniform cis‐[Pd2L2L′2]4+ coordination cages, thus furthering the possibility to increase structural and functional complexity in supramolecular systems.
Ανάπτυξη, εφαρμογή και αξιολόγηση διαδραστικού υλικού για την επιμόρφωση της διερευνητικής μάθησης στις φυσικές επιστήμες σε εκπαιδευτικούς
Creators: name: Ντόβα, Ελένη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2019
Subjects: subject: Διερευνητική μάθηση
subject: Φυσική
subject: Εκπαιδευτικοί

description: Tutorial για την επιμόρφωση εκπαιδευτικών στη δόμηση σεναρίων διερευνητικής μάθησης, για τη διδασκαλία των φυσικών επιστημών.
title: Role of febuxostat in retarding progression of diabetic kidney disease with asymptomatic hyperuricemia
title: a 6-months open-label, randomized controlled trial
titleType: AlternativeTitle
Creators: name: Mukri, Mohd Noor Azreey
name: Kong, Wei-Yen
name: Mustafar, Ruslinda
name: Shaharir, Syahrul Sazliyana
name: Shah, Shamsul Azhar
name: Abdul Gafor, Abdul Halim
name: Mohd, Rozita
name: Abdul Cader, Rizna
name: Kamaruzaman, Lydia
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Febuxostat
subject: Proteinuria
subject: Chronic kidney failure
subject: HbA1c
subject: Hyperuricemia
subject: 610

description: Introduction: Hyperuricemia is associated with chronic kidney disease (CKD) progression and poor cardiovascular outcomes. We studied the effect of febuxostat on estimated glomerular filtration rate (eGFR), proteinuria and monitored the safety profile of the medication. Material and Methods: This is a prospective open-label, randomized study in CKD stage 3 and 4 patients with diabetic nephropathy and asymptomatic hyperuricemia. Patients were randomized into febuxostat 40 mg daily and no treatment group using block randomization method and were followed up for 6 months. Their usual care for diabetes mellitus, hypertension and dyslipidemia were continued in the study. Blood and urine investigations were monitored at baseline, 3 months and 6 months. Results: The eGFR in febuxostat group was stabilized at 6 months with no significant reduction [26.2 (IQR 14.30) at baseline to 26.3 (IQR 15.2) ml/min/1.73 m2]. Whereas, there was a significant reduction of the eGFR in no treatment group from 28.2 (IQR 17.9) to 27.6 (IQR 19.3) ml/min/1.73 m2 (p value < 0.01). We found the HbA1c (glycosylated hemoglobin) was significantly increased in febuxostat group from 7.2 ± 0.5 % at baseline to 7.6 ± 1.4 at 6 months (p value 0.04) but no significant change of HbA1c in the no treatment group. Proteinuria level was unchanged in both groups. The commonest adverse event was joint pain. Conclusions: Febuxostat was able to preserve eGFR in CKD patients with diabetic nephropathy and this effect was beyond glycemic control. Increment of HbA1c level in febuxostat group needs further larger trials.
description: EXCLI Journal;Vol. 17 2018
Coherent charge transport through molecular wires: influence of strong Coulomb repulsion
Creators: name: Kaiser, Franz J.
name: Strass, Michael
name: Kohler, Sigmund
name: Hänggi, Peter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive a master equation for the electron transport through molecular wires in the limit of strong Coulomb repulsion. This approach is applied to two typical situations: First, we study transport through an open conduction channel for which we find that the current exhibits an ohmic-like behaviour. Second, we explore the transport properties of a bridged molecular wire, where the current decays exponentially as a function of the wire length. For both situations, we discuss the differences to the case of non-interacting electrons.
description: 15 pages, 4 figures, elsart style, accepted at Chem Phys
Trocholites baldri Aubrechtová & Korn, 2025, sp. nov.
Creators: name: Aubrechtová, Martina
name: Korn, Dieter
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Tarphyceratida
Trocholitidae
Trocholites
Trocholites baldri

description: Trocholites baldri sp. nov.
urn:lsid:zoobank.org:act: EE665BAD-AF26-4024-A9C5-8A558A5D376F
Fig. 17; Table 8
Diagnosis
Species of the genus Trocholites with an adult conch diameter of more than 30 mm. Conch in the last whorl thickly discoidal (CWI ~ 0.50) and evolute (UWI ~ 0.45) with moderately high coiling rate (WER ~ 1.75). Whorl profile moderately depressed (WWI ~ 1.80) with rounded flanks and venter, weakly embracing (IZR ~ 0.14). Whorl width and whorl height slightly decreasing in last quarter volution. Phragmocone chambers moderately long (RCL ~ 0.28). Suture line nearly straight.
Etymology
After Baldr, the Norse god of light, beauty and purity.
Type material
Holotype
GERMANY – Mecklenburg-Vorpommern • Göhren (Isle of Rügen); Lasnamägi Regional Stage; illustrated in Fig. 17; MB.C. 32170.
Description
Holotype MB.C.32170 (Fig. 17) is a specimen with a conch diameter of 31 mm; the specimen is largely an internal mould with few shell remnants. The body chamber is preserved for a little more than half a volution in length and decreases slightly in width and height; the whorl width is reduced from 9.2 mm to 8.6 mm and the whorl height from 15.8 mm to 15.5 mm. This means that during the last half volution the conch becomes markedly narrower (CWI decreases from 0.61 to 0.50) and increasingly umbilicate (UWI increases from 0.37 to 0.46) with a terminal coiling rate of WER = 1.76. During this growth interval, the whorl profile is depressed (WWI decreases from 1.83 to 1.72) and weakly impressed dorsally (IZR = 0.12 at the maximum whorl height) with broadly rounded flanks and venter. Fine traces of transverse ornament elements are locally preserved on the shell surface. The phragmocone chambers are moderately long (RCL = 0.28) in the last volution; the suture line is almost straight.
Remarks
Trocholites baldri sp. nov. is most similar to the species T. macrostoma, T. freyjae sp. nov., T. glacialis sp. nov., T. sp. 1 and T. sp. 3 but differs in the decrease of both whorl width and whorl height of the terminal body chamber.
Compared to the specimens of Trocholites depressus, the holotype of T. baldri sp. nov. is stouter (CWI ~ 0.50 vs 0.35–0.40), expands more rapidly (WER ~ 1.75 vs 1.65) and the whorl profile is more depressed (WWI ~ 1.80 vs 1.25–1.60).
Rather similar in conch geometry to the holotype of T. baldri sp. nov. is the neotype of T. contractus; however, in T. contractus, the decrease of body chamber width and height is much greater, the phragmocone chambers are slightly shorter and the suture line has a deeper ventral lobe.
description: Published as part of Aubrechtová, Martina & Korn, Dieter, 2025, The coiled Middle Ordovician cephalopod genera Trocholites and Curtoceras (Tarphyceratida) from Baltoscandia and north-central Europe, pp. 1-78 in European Journal of Taxonomy 982 on pages 35-37, DOI: 10.5852/ejt.2025.982.2843, http://zenodo.org/record/15096341
POLICY IMPLICATIONS OF RESTRICTED ACCESS STRATEGIES FOR MULTISPECIES FISHERIES
Creators: name: Hutchinson, Sharon D.
name: Larkin, Sherry L.
name: Lee, Donna J.
name: Adams, Charles M.
name: Milon, J. Walter
name: Hutchinson, Sharon D.
name: Larkin, Sherry L.
name: Lee, Donna J.
name: Adams, Charles M.
name: Milon, J. Walter
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: The commercial fishery that primarily targets king mackerel, stone crab, snappers, groupers and spiny lobster in Monroe and Collier counties is one of the most important commercial fisheries in Florida. These species currently face problems of overfishing and/or over capitalization. A dual-based restricted profit function is used to estimate the economic and technical interactions that exist in this multi-species fishery, primarily using own-price and cross-price elasticities of supply. It is found that the production technology does not exhibit input-output separability and nonjointness-in-inputs over all species groups. This result suggests that these key species may be more efficiently managed as a group, rather than with the use of existing single species regulations. Spiny lobster and stone crab, the dominant value species in the fishery, are shown to have very elastic substitution relationships with king mackerel.
[Brev til DKNVS]
Creators: name: Krohg, Hilmar Meincke
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1842

description: Ønsker å få bøker til en almueboksamling og Landhusholdningsselskabet i Romsdal
description: Kun vedlegget. Polydoc nr. 1: 2541. Polydoc nr. 2: 1969.
Χρηματοοικονομική ανάλυση επιχειρήσεων του κλάδου της ιχνηλασιμότητας συσκευασίας & των βιομηχανικών αυτοματισμών
Creators: name: Γκουντούνας, Βίκτωρ-Παναγιώτης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Χρηματοοικονομική ανάλυση
subject: Αριθμοδείκτες αποδοτικότητας
subject: Αριθμοδείκτες δραστηριότητας
subject: Αριθμοδείκτες ρευστότητας

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι να παρουσιαστεί μία χρηματοοικονομική διεύρυνση του κλάδου της ιχνηλασιμότητας, συσκευασίας και των βιομηχανικών αυτοματισμών για το χρονικό διάστημα από το έτος 2015 έως και το έτος 2018 (σύνολο τέσσερα έτη). Ο συγκεκριμένος κλάδος είναι υψίστης σημασίας καθώς βρίσκεται σε άμεση συνάρτηση με πάρα πολλούς κλάδους όπως είναι ο κλάδος των γαλακτοβιομηχανιών, καπνοβιομηχανίες, φαρμακοβιομηχανίες. Στα δύο πρώτα κεφάλαια γίνεται μία σύντομη παρουσίαση της διπλωματικής εργασίας, μία ιστορική αναδρομή των επιχειρήσεων του κλάδου της ιχνηλασιμότητας, συσκευασίας και των βιομηχανικών αυτοματισμών, τον παραγόντων που τον επηρεάζουν καθώς επίσης δίνεται μία σαφής εικόνα των δεδομένων του κλάδου αλλά και των επιχειρήσεων που τον απαρτίζουν. Στο τρίτο κεφάλαιο παρατίθεται η μεθοδολογία πάνω στην οποία βασίζεται η διπλωματική έρευνα η οποία αποτελείται από τους δείκτες χρηματοοικονομικής ανάλυσης οι οποίοι είναι αριθμοδείκτες ρευστότητας, δραστηριότητας, αποδοτικότητας και κεφαλαιακής διάρθρωσης και θα μας βοηθήσουν να εξάγουμε σημαντικά συμπεράσματα και οι οποίοι επιλέχθηκαν με βάση τη φύση και τη δραστηριότητα των επιχειρήσεων που απαρτίζουν τον κλάδο έτσι ώστε να προκύψουν χρήσιμα και ουσιώδη συμπεράσματα. Στο τέταρτο κεφάλαιο έχουμε μία παρουσίαση των αποτελεσμάτων των αριθμοδεικτών ποσοτικά και διαγραμματικά ενσωματώνοντας όλα τα δεδομένα κάθε επιχείρησης για κάθε έτος σε βάθος τετραετίας και έχουμε σύγκριση διαχρονικά και διαστρωματικά για ολόκληρη την τετραετία. Μετά την παρουσίαση των αποτελεσμάτων του κάθε δείκτη παρατίθενται μία διαγραμματική παρουσίαση προκειμένου να γίνει εύκολα αντιληπτό το αποτέλεσμα καθώς επίσης και σχόλια και συμπεράσματα για τα αποτελέσματα που προκύπτουν σε κάθε περίπτωση θέλοντας να δοθεί μία εμπεριστατωμένη ερμηνεία προσαρμοσμένη στα δεδομένα των εταιρειών του κλάδου. Στο πέμπτο και τελευταίο κεφάλαιο γίνεται μία αναγωγή των συμπερασμάτων σε επίπεδο κλάδου αναλύοντας την πορεία του κλάδου σε επίπεδο ρευστότητας, αποδοτικότητας και κεφαλαιακή διάρθρωσης αλλά και τονίζοντας παράλληλα και τις πιθανές αδυναμίες της παρούσας διπλωματικής εργασίας.
Ectopic microRNAs used to preserve human mesenchymal stem cell potency and epigenetics
Creators: name: Ghasemzadeh, Navid
name: Pourrajab, Fatemeh
name: Dehghani Firoozabadi, Ali
name: Hekmatimoghaddam, Seyedhossein
name: Haghiralsadat, Fatemeh
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Epigenetic
subject: Human mesenchymal stem cells (hMSCs)
subject: miRNA
subject: Potency
subject: Regenerative medicine
subject: 610

description: Human mesenchymal stem cells (hMSCs) have remarkable potential for use in regenerative medicine. However, one of the great challenges is preserving their potency for long time. This study investigated the effect of miRNA ectopic expression on their proliferation and also on the expression level of Parp1 as an epigenetic switch preserving pluripotency in hMSCs. A cationic liposome was prepared as an efficient carrier for miRNA delivery. The miRNA loading efficiency and physical stability of vesicles were measured, and their scanning electron microscopic shapes determined. hMSCs were transfected with miR-302a and miR-34a followed by assessment of their proliferation potency with MTT assay and measurement of the expression of Parp1 by quantitative polymerase chain reaction (QPCR). Cell transfection with miR-302a and miR-34a efficiently and differentially affects the proliferation potency of hMSCs and the expression level of Parp1 as the key epigenetic factor involved in pluripotency. While miR-302a increases Parp1 expression, miR-34a suppresses it significantly, showing differential effects. Our results demonstrated that miRNA-based treatments represent efficient therapeutic systems and hold a great promise for future use in regenerative medicine through modification of hMSC pluripotency and epigenome.
description: EXCLI Journal;Vol. 17 2018
Topological Cigar and the c=1 String : Open and Closed
Creators: name: Ashok, Sujay K.
name: Murthy, Sameer
name: Troost, Jan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We clarify some aspects of the map between the c=1 string theory at self-dual radius and the topologically twisted cigar at level one. We map the ZZ and FZZT D-branes in the c=1 string theory at self dual radius to the localized and extended branes in the topological theory on the cigar. We show that the open string spectrum on the branes in the two theories are in correspondence with each other, and their two point correlators are equal. We also find a representation of an extended N=2 algebra on the worldsheet which incorporates higher spin currents in terms of asymptotic variables on the cigar.
description: 37 pages, 2 figures, corrections to section 3.1, references added
[Brev til DKNVS]
Creators: name: Guldberg Og ?
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1842

description: Takker for 150 Spd i anledning sogneprest Erlandsens skrift om den nordenfjeldske geistighet.
description: 2 vedlegg: Om Erlandsen .
Omega vs. pi, and 6d anomaly cancellation
Creators: name: Davighi, Joe
name: Lohitsiri, Nakarin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this note we review the role of homotopy groups in determining non-perturbative (henceforth `global') gauge anomalies, in light of recent progress understanding global anomalies using bordism. We explain why non-vanishing of $π_d(G)$ is neither a necessary nor a sufficient condition for there being a possible global anomaly in a $d$-dimensional chiral gauge theory with gauge group $G$. To showcase the failure of sufficiency, we revisit `global anomalies' that have been previously studied in 6d gauge theories with $G=SU(2)$, $SU(3)$, or $G_2$. Even though $π_6(G) \neq 0$, the bordism groups $Ω_7^\mathrm{Spin}(BG)$ vanish in all three cases, implying there are no global anomalies. In the case of $G=SU(2)$ we carefully scrutinize the role of homotopy, and explain why any 7-dimensional mapping torus must be trivial from the bordism perspective. In all these 6d examples, the conditions previously thought to be necessary for global anomaly cancellation are in fact necessary conditions for the local anomalies to vanish.
description: 36 pages, 6 figures. Footnotes added to clarify notation for eta-invariant. Matches version accepted for publication
RISK SHARING IN POULTRY CONTRACTS
Creators: name: Hegde, S. Aaron
name: Hegde, S. Aaron
Publisher: name: Unknown
Year: 2001
Subjects: Livestock Production/Industries

description: Previous literature has found that 84% of risk in poultry grow-out farms is transferred to the integrator. One of the main reasons behind this is the absence of a market price variable in determining compensation. We do not find this to be the case with more recent contracts, which include a market price clause. We also use VaR methodology to look at the risk inherent in the new contracts.
Dalitz-plot analysis of the decays B+/- --> K+/- pi-/+ pi+/-
Creators: name: Aubert, B.
name: Collaboration, BABAR
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K+/- pi-/+ pi+/-. Using a sample of 226.0 +/- 2.5 million BBbar pairs collected by the BaBar detector, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for both charge conjugate decays. We present measurements of the corresponding branching fractions and their charge asymmetries that supersede those of previous BaBar analyses. We find the charge asymmetries to be consistent with zero.
description: 11 pages, 3 postscript figues, submitted to LP 2005 and published in Physical Review D. This version of the paper corrects a coding error discovered after submission to Phys. Rev. D and described in an Erratum submitted 26 Oct 2006
Ο ρόλος του φύλου στην διαδικασία λήψης αποφάσεων και το στυλ ηγεσίας στις εκπαιδευτικές μονάδες - οργανισμούς
Creators: name: Χρόνη, Αλεξάνδα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Σχολική διοίκηση
subject: Ηγεσία
subject: Λήψη αποφάσεων
subject: Εφαρμογή αποφάσεων
subject: Φύλο

description: Η διαδικασία λήψης αποφάσεων είναι πολύ σημαντική καθώς με τον τρόπο αυτό είναι εφικτή η αμεσότερη αντιμετώπιση των διαφόρων προβλημάτων και ζητημάτων που αντιμετωπίζουν οι σχολικές μονάδες και οι οργανισμοί με συνέπεια να αυξάνεται η αποτελεσματικότητα τους. Στην παρούσα εργασία σκοπός της μελέτης είναι να διεξάγουμε συμπεράσματα αν το φύλο είναι καθοριστικός παράγοντας στον τρόπο λήψης αποφάσεων και το στυλ ηγεσίας στις σχολικές μονάδες και οργανισμούς. Ειδικότερα η εργασία στοχεύει να δείξει αν υπάρχει διαφορά στον τρόπο λήψης απόφασης μεταξύ ανδρών και γυναικών, ιδιαίτερα στον χώρο της εκπαίδευσης, να δείξει πώς ο τρόπος αυτός σχετίζεται με το στυλ διοίκησης που ακολουθούν γυναίκες και άνδρες καθώς και αν και σε ποιόν βαθμό υπάρχουν στους/στις εκπαιδευτικούς στερεοτυπικές αντιλήψεις όσον αφορά την άσκηση της διοίκησης από τους άνδρες και τις γυναίκες. Υπάρχει μεγάλη προβληματική γύρω από το θέμα και είναι σημαντική η διερεύνηση του ζητήματος, καθότι σχετίζεται με στερεοτυπικές αντιλήψεις και διακρίσεις σε βάρος των γυναικών, υπό εκπροσώπηση των γυναικών σε θέσεις ευθύνης, υποστήριξη στελεχών στην άσκηση των καθηκόντων τους, άρση στερεοτυπικών αντιλήψεων κ.ά. Η παρούσα έρευνα βασίζεται στην αξιοποίηση διαστρωματικών δεδομένων που συλλέχθηκαν με τη χρήση ερωτηματολογίου. Μέσα από την έρευνα θα απαντήσουμε στα ερωτήματα, αν οι άνδρες έχουν την τάση/προτιμούν να ακολουθούν το στυλ ηγεσίας που δίνει έμφαση στην εκτέλεση των εργασιών (taskoriented) ενώ οι γυναίκες στην ανάπτυξη σχέσεων με τους/τις υφισταμένους/-ες (relationshiporiented), αν οι άνδρες έχουν την τάση να επιλέγουν/προτιμούν το Κατευθυντικό/Διευθυντικό (Directive) και το Αναλυτικό (Analytical) στυλ στη λήψη αποφάσεων, ενώ οι γυναίκες το Συμπεριφορικό (Behavioral) και το εννοιολογικό (Conceptual) στυλ. Καθώς και αν υπάρχουν στερεοτυπικές αντιλήψεις όσον αφορά τη άσκηση διοίκησης από τους άνδρες και τις γυναίκες.
Targeting PPAR-gamma to design and synthesize antidiabetic thiazolidines
Creators: name: Sawant, Ramesh L.
name: Wadekar, Jyoti B.
name: Kharat, Santosh B.
name: Makasare, Hitakshi S.
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Alloxan
subject: Antidiabetic
subject: Docking
subject: PPAR-γ
subject: Thiazolidine
subject: 610

description: A series of thiazolidine derivatives were designed by docking into PPAR-γ active site. The structure of target was obtained from the protein data bank (PDB ID P37231). A library of 200 molecules was prepared on random basis. Molecular docking studies were performed using VLife MDS 4.3 software. After molecular docking studies, the 4-substituted-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid N-[4-(2,4-dioxo-thiazolidin-5- ylidenemethyl)-phenyl]-hydrazides (4a-4h) were selected for synthesis. The progress of reaction and purity of the synthesized compounds were monitored by TLC and melting point. Structures of title compounds were confirmed by elemental analysis, IR, 1H NMR and mass spectral data. The antidiabetic activity of title compounds was performed using the Wistar rats by alloxan-induced method. The compounds have shown antidiabetic activity comparable with the standard drug pioglitazone. These findings suggest that potent antidiabetics can be generated by substituting nonpolar, electron withdrawing substituents at the fourth position of pyrimidine skeleton and hydrogen bond acceptor at the nitrogen of the thiazolidine nucleus, to inhibit peroxisome proliferator-activated receptor-γ.
description: EXCLI Journal;Vol. 17 2018
RURAL SHADOW WAGES, LABOUR SUPPLY AND AGRICULTURAL PRODUCTION UNDER IMPERFECT MARKETS: EMPIRICAL EVIDENCE FROM VIET NAM
Creators: name: Linde-Rahr, Martin
name: Linde-Rahr, Martin
Publisher: name: Unknown
Year: 2001
Subjects: Labor and Human Capital

description: Due to market imperfections and sexual division of labour, this paper takes interest in gender specific values of agricultural labour products (or shadow wages) and the problem of aggregating agricultural production activities. The paper analyses two farming systems instead of using an aggregated agricultural harvest under the presumption that households are restricted in choosing crop patterns and consequently limited in their allocation of labour. The farming systems differ in the level of diversification over crops where a limited number of households are able to engage in the more diversified system (two crops: rice and sugar cane) while other households are restricted to cultivate only one of the two (rice). These circumstances are likely to be widespread in developing countries. Since an entry restriction limit the choice of crop pattern, production functions for rice and sugar cane are estimated separately. We find labour returns to differ significantly between farming systems with lower returns for single-crop producers. The paper tests whether non-separability conditions holds and find in general that theoretical predictions cannot be falsified. This implies that over the whole sample households are on average unable to adjust their labour supply at the margin and hence, using shadow wages from an aggregated agricultural production is likely to mislead policy conclusions. We also find that diversified household members do equate returns between the farming systems while households that are restricted to one production activity yield lower returns. Since less diversified households are in general poorer poverty alleviation policies must address the entry restriction but first, policy makers should check whether they need to redraw policy conclusions made on aggregate harvests.
Eternally non-Markovian dynamics of a qubit interacting with a single-photon wavepacket
Creators: name: Dąbrowska, Anita
name: Chruściński, Dariusz
name: Chakraborty, Sagnik
name: Sarbicki, Gniewomir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An evolution of a two-level system (qubit) interacting with a single-photon wave packet is analyzed. It is shown that a hierarchy of master equations gives rise to phase covariant qubit evolution. The temporal correlations in the input field induce nontrivial memory effects for the evolution of a qubit. It is shown that in the resonant case whenever time-local generator is regular (does not display singularities) the qubit evolution never displays information backflow. However, in general the generator might be highly singular leading to intricate non-Markovian effects. A detailed analysis of the exponential profile is provided which allows to illustrate all characteristic feature of the qubit evolution.
COMPETITIVENESS AND CONSUMER PREFERENCES OF US FRUITS IN TAIWAN
Creators: name: Hsu, Jane Lu
name: Wann, Joyce J.
name: Hsu, Jane Lu
name: Wann, Joyce J.
Publisher: name: Unknown
Year: 2001
Subjects: Consumer/Household Economics

description: Taiwan is a major importing country of US fruits. This study examines the market competitiveness and consumer preferences of US fruits in Taiwan using cross-sectional data. Results indicate that for either retailers or consumers, imported US fruits compete favorably with domestic grown fruits in the Taiwanese fruit markets.
Affleck-Dine (Pseudo)-Dirac Neutrinogenesis
Creators: name: Abel, Steven
name: Page, Veronique
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the Affleck-Dine mechanism for leptogenesis in the minimal MSSM with Dirac or Pseudo-Dirac neutrinos. The rolling of scalars along D-flat directions generates a left-right asymmetry in the sneutrino sector, only the left part of which is transferred to a baryon asymmetry via sphaleron transitions. In the pure Dirac case the baryon asymmetry of the Universe is thus mirrored by an equal and opposite asymmetry in the leptons. The mechanism is also found to work when the neutrinos are pseudo-Dirac. No additional field needs to be added to the MSSM other than the right-handed neutrino.
description: Latex, 3 figures, 1 bib file, 2 added reference, 1 minor correction, 1 added comment
Tenancy and Soil Conservation in Market Equilibrium
Creators: name: Lichtenberg, Erik
name: Lichtenberg, Erik
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: A theoretical analysis of equilibrium contracts between risk neutral landlords and tenants when tenants' soil exploitation is non-contractible indicates that landlords will overinvest in conservation structures. An empirical model using farm-level data provides evidence that investment in contractible soil conservation measures is greater on rental land.
Explicating the mechanisms between overwork-related media exposure and workplace resilience: a study of tech employees in China
Creators: name: Ye, Jinyi
name: Kuang, Kai
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy

description: Enactment of resilience is essential to workplace well-being. Drawing on the communication theory of resilience (CTR), this study examined media exposure as a potential source of anticipatory resilience for new employees under the China’s tech industry’s overwork culture. Analyses of survey data (n = 300) revealed that media exposure to overwork culture enhanced occupational self-efficacy and communicative resilience enactment, positively influencing outcomes including career adaptability, mental health, and job satisfaction. In addition, social support and career identity boosted Chinese tech workers’ enactment of communicative resilience processes. This study extends CTR to organizational contexts, contributes to the continuous validation of the Communication Resilience Processes Scale (CRPS), and highlights the role of media as a source of cultural discourses that fosters anticipatory resilience and subsequent resilience enactment. Findings offer practical insights into communicative strategies to support new employees’ well-being and career development in the global context of work exploitation and resistance.
Hair histology as a tool for forensic identification of some domestic animal species
Creators: name: Ahmed, Yasser A.
name: Ali, Safwat
name: Ghallab, Ahmed
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: Animal hair
subject: Veterinary forensics
subject: Animal identification
subject: Hair medulla
subject: Hair scales
subject: 610

description: Animal hair examination at a criminal scene may provide valuable information in forensic investigations. However, local reference databases for animal hair identification are rare. In the present study, we provide differential histological analysis of hair of some domestic animals in Upper Egypt. For this purpose, guard hair of large ruminants (buffalo, camel and cow), small ruminants (sheep and goat), equine (horse and donkey) and canine (dog and cat) were collected and comparative analysis was performed by light microscopy. Based on the hair cuticle scale pattern, type and diameter of the medulla, and the pigmentation, characteristic differential features of each animal species were identified. The cuticle scale pattern was imbricate in all tested animals except in donkey, in which coronal scales were identified. The cuticle scale margin type, shape and the distance in between were characteristic for each animal species. The hair medulla was continuous in most of the tested animal species with the exception of sheep, in which fragmental medulla was detected. The diameter of the hair medulla and the margins differ according to the animal species. Hair shaft pigmentation were not detected in all tested animals with the exception of camel and buffalo, in which granules and streak-like pigmentation were detected. In conclusion, the present study provides a first-step towards preparation of a complete local reference database for animal hair identification that can be used in forensic investigations.
description: EXCLI Journal;Vol. 17 2018
The XO Project: Searching for Transiting Extra-solar Planet Candidates
Creators: name: McCullough, P. R.
name: Stys, J. E.
name: Valenti, J. A.
name: Fleming, S. W.
name: Janes, K. A.
name: Heasley, J. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The XO project's first objective is to find hot Jupiters transiting bright stars, i.e. V < 12, by precision differential photometry. Two XO cameras have been operating since September 2003 on the 10,000-foot Haleakala summit on Maui. Each XO camera consists of a 200-mm f/1.8 lens coupled to a 1024x1024 pixel, thinned CCD operated by drift scanning. In its first year of routine operation, XO has observed 6.6% of the sky, within six 7 deg-wide strips scanned from 0 deg to +63 deg of declination and centered at RA=0, 4, 8, 12, 16, and 20 hours. Autonomously operating, XO records 1 billion pixels per clear night, calibrates them photometrically and astrometrically, performs aperture photometry, archives the pixel data and transmits the photometric data to STScI for further analysis. From the first year of operation, the resulting database consists of photometry of 100,000 stars at more than 1000 epochs per star with differential photometric precision better than 1% per epoch. Analysis of the light curves of those stars produces transiting-planet candidates requiring detailed follow up, described elsewhere, culminating in spectroscopy to measure radial-velocity variation in order to differentiate genuine planets from the more numerous impostors, primarily eclipsing binary and multiple stars.
description: 29 pages, 12 figures, accepted by PASP for Aug 2005 issue
Combining thermal spraying and magnetron sputtering for the development of Ni/Ni-20Cr thin film thermocouples for plastic flat film extrusion processes
Creators: name: Tillmann, Wolfgang
name: Kokalj, David
name: Stangier, Dominic
name: Schöppner, Volker
name: Malatyali, Hatice
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Nickel-chromium
subject: Thin film thermocouples
subject: Physical vapor deposition
subject: Flat film extrusion
subject: Foil quality
subject: 620
subject: 670
subject: Nickel
subject: Chrom
subject: Dünnschichttechnik
subject: Thermoelement
subject: PVD-Verfahren
subject: Extrudieren

description: In the digitalization of production, temperature determination is playing an increasingly important role. Thermal spraying and magnetron sputtering were combined for the development of Ni/Ni-20Cr thin film thermocouples for plastic flat film extrusion processes. On the thermally sprayed insulation layer, AlN and BCN thin films were deposited and analyzed regarding their structural properties and the interaction between the plastic melt and the surfaces using Ball-on-Disc experiments and High-Pressure Capillary Rheometer. A modular tool, containing the deposited Ni/Ni-20Cr thin film thermocouple, was developed and analyzed in a real flat film extrusion process. When calibrating the thin film thermocouple, an accurate temperature determination of the flowing melt was achieved. Industrial type K sensors were used as reference. In addition, PP foils were produced without affecting the surface quality by using thin film thermocouples.
description: Coatings;9(10)
THE IMPACT OF MANURE PRODUCTION RIGHTS ON CAPITAL INVESTMENT IN THE DUTCH PIG SECTOR
Creators: name: Gardebroek, Cornelis
name: Gardebroek, Cornelis
Publisher: name: Unknown
Year: 2001
Subjects: subject: Livestock Production/Industries
subject: Investment
subject: manure production rights
subject: Euler equation
subject: GMM
subject: structural break testing
subject: panel data
subject: pig farms

description: In this paper the effect of manure production rights on investment decisions of Dutch pig farmers is examined. A dynamic optimization model of investment that explicitly takes zero investments into account is augmented by a constraint on production arising from the introduction of manure production rights. In the theoretical model it is shown that such a constraint has a reducing effect on investment. The presence of this constraint is tested for using GMM structural break tests. The results provide evidence for the hypothesis that manure production rights have reduced investments through its effect on production.
Iteratively Reweighted Least Squares for Basis Pursuit with Global Linear Convergence Rate
Creators: name: Kümmerle, Christian
name: Verdun, Claudio Mayrink
name: Stöger, Dominik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The recovery of sparse data is at the core of many applications in machine learning and signal processing. While such problems can be tackled using $\ell_1$-regularization as in the LASSO estimator and in the Basis Pursuit approach, specialized algorithms are typically required to solve the corresponding high-dimensional non-smooth optimization for large instances. Iteratively Reweighted Least Squares (IRLS) is a widely used algorithm for this purpose due its excellent numerical performance. However, while existing theory is able to guarantee convergence of this algorithm to the minimizer, it does not provide a global convergence rate. In this paper, we prove that a variant of IRLS converges with a global linear rate to a sparse solution, i.e., with a linear error decrease occurring immediately from any initialization, if the measurements fulfill the usual null space property assumption. We support our theory by numerical experiments showing that our linear rate captures the correct dimension dependence. We anticipate that our theoretical findings will lead to new insights for many other use cases of the IRLS algorithm, such as in low-rank matrix recovery.
description: 26 pages, 3 figures
Οι οικονομικές επιπτώσεις των εξαγορών και συγχωνεύσεων: μελέτη περίπτωσης στο φαρμακευτικό κλάδο
Creators: name: Πιτετζής, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Συγχωνεύσεις
subject: Εξαγορές
subject: Επιχειρηματικοί σχηματισμοί
subject: Μη κανονικές αποδόσεις μετοχών
subject: Μέθοδος ανάλυσης επιχειρηματικών γεγονότων

description: Οι συγχωνεύσεις και οι εξαγορές αποτελούν ένα σημαντικό εργαλείο αναδιάρθρωσης των επιχειρήσεων. Οι περισσότερες επιχειρήσεις επιλέγουν κυρίως την εξωτερική ανάπτυξη μέσω των συγχωνεύσεων και εξαγορών ώστε να αυξήσουν την αξίας τους και τον πλούτο των μετόχων. Μέσα από τέτοιου είδους ενέργειες οι επιχειρήσεις έχουν τη δυνατότητα να επεκταθούν σε νέα προϊόντα ή υπηρεσίες, σε νέες αγορές, να αυξήσουν το ανταγωνιστικό τους πλεονέκτημα, να αποκτήσουν εξειδικευμένο ανθρώπινο δυναμικό και κατάλληλη τεχνογνωσία. Στόχος της εργασίας είναι η ανάλυση των οικονομικών επιπτώσεων των συγχωνεύσεων και εξαγορών στις φαρμακευτικές εταιρείες. Εξετάζει εάν οι εξαγορές και οι συγχωνεύσεις δημιουργούν αξία στις εταιρείες αυτού του κλάδου και παρουσιάζει τρόπους με τους οποίους μπορούμε να αξιολογήσουμε τέτοιους είδους δραστηριότητες. Στην εργασία αυτή θα χρησιμοποιηθεί ημέθοδος ανάλυσης επιχειρηματικών γεγονότων που είναι γνωστή ως Abnormal Returns ή Event Study Methodologyκαι συγκεκριμένα σε εταιρείες - αγοραστές που ανήκουν στον φαρμακευτικό κλάδο.Το πρώτο κεφάλαιο περιέχει τις έννοιες και τους ορισμούς των συγχωνεύσεων και των εξαγορών. Αναλύονται οι διάφοροι τύποι συγχωνεύσεων και εξαγορών και επισημαίνονται οι διαφορές μεταξύ των δύο όρων ώστε να γίνει κατανοητή η βασική ορολογία. Στο δεύτερο κεφάλαιο παρουσιάζονται τα κίνητρα και οι λόγοι που πραγματοποιούνται τέτοιου είδους συναλλαγές, οι οποίες παίζουν σημαντικό ρόλο στη στρατηγική μίας επιχείρησης. Τα βασικά κίνητρα χωρίζονται σε δύο κατηγορίες ανάλογα με το ποιόν αφορούν. Έτσι, έχουμε τα κίνητρα που αφορούν τους μετόχους των επιχειρήσεων και τα κίνητρα που αφορούν τους μάνατζερς. Ακόμη, αναλύονται οι βασικοί λόγοι που αποτυγχάνουν οι συγχωνεύσεις και οι εξαγορές καθώς το ποσοστό επιτυχίας τους είναι αρκετά μικρό. Στη συνέχεια, στο τρίτο κεφάλαιο παρουσιάζονται οι μέθοδοι αξιολόγησης των συγχωνεύσεων και εξαγορών που χρησιμοποιούνται και αποτελέσματα εμπειρικών μελετών για κάθε μέθοδο ξεχωριστά. Στο τέταρτο κεφάλαιο γίνεται μία ανασκόπηση σε περιπτώσεις συγχωνεύσεων και εξαγορών στο φαρμακευτικό κλάδο. Επιλέχθηκαν οι σημαντικότερες συγχωνεύσεις και εξαγορές φαρμακευτικών εταιρειών με βασικό κριτήριο το ύψος της συναλλαγής που πραγματοποιήθηκε. Ακολουθεί το πέμπτο κεφάλαιο στο οποίο γίνεται λεπτομερής παρουσίαση της μεθοδολογίας της ανάλυσης επιχειρηματικών γεγονότων (event studies). Στο έκτο κεφάλαιο παρουσιάζονται τα δεδομένα που χρησιμοποιήθηκαν και ο τρόπος συλλογής τους και στο έβδομο τα αποτελέσματα και τα συμπεράσματα.
title: Arbeitsbericht / 2018-2019
Creators: name: (:Unav)
Publisher: name: zebis - Zentrum für ethische Bildung in den Streitkräften
Year: 2024

description: Drohnen, Cyberwar, Digitalisierungs- und Autonomisierungsprozesse: Die Bilder auf dem Titelblatt illustrieren, mit welchen Herausforderungen Soldaten heute konfrontiert sind.
Das zebis stellt sich seit zehn Jahren der Aufgabe, zu solchen hochkomplexen und aktuellen Themen Fragen zu stellen. Ethische Abwägungsprozesse anzustrengen, einen steten Brückenbau zwischen Theorie und Praxis und den Bezug zur soldatischen Alltags- und Einsatzrealität herzustellen – all das leistet die ethische Bildung.
Auch in der Zeit einer Pandemie wird uns dies als Herausforderung nach Antworten auf große Fragen suchen lassen.
description: Arbeitsbericht / Zentrum für ethische Bildung in den Streitkräften; 2018-2019
Αισιοδοξία επενδυτών και αποδόσεις μετοχών
Creators: name: Κωνσταντόπουλος, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Συναίσθημα του επενδυτή
subject: Συμπεριφορική χρηματοοικονομική
subject: Μελλοντικές προσδοκίες
subject: Κεφαλαιαγορά
subject: Μετοχές
subject: Χρηματιστηριακή αγορά
subject: ARDL
subject: Ανεργία
subject: Δείκτης τιμών καταναλωτή

description: Στη παρούσα Εργασία εξετάζεται κατά πόσο επηρεάζουν τη πορεία του χρηματιστηριακού δείκτη S&P 500 μακροοικονομικές μεταβλητές όπως η ανεργία, ο δείκτης τιμών καταναλωτή και το συναίσθημα των επενδυτών. Γίνεται μια ανάλυση με την ARDL μέθοδο συν-ολοκλήρωσης και πραγματοποιούνται έλεγχοι επαυξημένης στασιμότητας (ADF) και διόρθωσης λαθών (EMC test). Αναλύεται για ποιους λόγους συμβαίνει εσφαλμένη τιμολόγηση στα περιουσιακά στοιχεία, όπως οι χρηματιστηριακοί τίτλοι και πως τα λάθη αυτά διορθώνονται. Επίσης δίνεται έμφαση στη συμπεριφορική χρηματοοικονομική και το πως αυτή εν τέλει επηρεάζει σε μεγάλο βαθμό τις χρηματαγορές. Εξηγούνται οι τύποι επενδυτών του χρηματιστηρίου και τα κίνητρα από τα οποία κατέχονται και επηρεάζουν τις αγορές.