cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin crossover in iron(II) and cobalt(II) complexes including multifunctional materials
Creators: name: Scott, Hayley Sue
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: At the outset, the primary focus of this Ph.D. project has been directed towards the synthesis of new 2,2’-dipyridylamino(dpa)- and 1,2,4-triazole(trz)- based ligands to be incorporated into spin crossover (SCO) iron(II) complexes. Initial aims sought the synthesis of a wide and diverse range of SCO compounds containing novel dpa- and trz-based ligands in order to determine what sort of control could be exercised over magnetic properties. New ligands synthesised for the project incorporated a range of nondpa- or trz-substituents with, for example, different capacities to participate in hydrogen bonding or aryl interactions (such as !-stacking), with different degrees of bulkiness, flexibility, or additional binding sites, for metals or other guests, that are distinct and separate from the dpa or trz coordination sites. This fundamental study also probed the influence of second coordination sphere entities, including the effects of solvation and counter ion species, upon the spin transition. Structure-function correlations for this work were vital to further the understanding of the factors influential in determining the magnetic properties of crystalline SCO compounds, by varying the nature of the ligand, solvent or counter-ion. As there is currently great interest in the study of multifunctional (‘hybrid’) molecular materials, a further aspect of this Ph.D. project was aimed towards the synthesis of ligands incorporating a moiety capable of a secondary function, in addition to SCO. This led to two main areas of study, the first of which consisted of the synthesis and coordination of a number of ferrocene-appended ligands and attempts have been made to analyse how one-electron changes at the ferrocene group (located external to the coordination site) influences the spin transition. This includes a system in which a new ferrocene-trz ligand and its 1-D polynuclear complexes were studied using magnetic, electrochemical and Mössbauer measurements (Chapter 6), as well as synthesis of discrete FeII and CoII complexes incorporating ferrocene-based ligands (Chapter 7). Our second approach at obtaining multifunctional SCO materials has led us to pursue the synthesis and coordination of crown-appended dpa-based ligands which have the potential to show, in addition to SCO, encapsulation of alkali metal ions in the aza-crown ether, which ideally would result in guest dependent magnetic properties. This work appears in Chapter 4. Throughout this study, where possible, all complexes have been comprehensively characterised, primarily using single crystal X-ray structural determination and variable temperature magnetic susceptibility measurements, although the vast array of complexes appearing in this thesis have been characterised using a number of other techniques including PXRD, Mössbauer spectroscopy, electrochemical studies, magnetic- and photo-magnetic measurements and to a lesser extent heat-capacity measurements.
กรอบคิดคุณค่าทางจริยธรรมว่าด้วยประเด็นแรงงาน
Creators: name: ชลนภา อนุกูล
Publisher: name: Foundation of Just Society Network
Year: 2022
Subjects: Ethical value
Work
Labor
Worker
Policy

description: Social Justice and Inequality Journal, 3, 3, 27-45
Chefsache
Creators: name: Juling, Wilfried
Publisher: name: Universitätsbibliothek Dortmund
Year: 2004
Subjects: subject: 020

description: Die Hochschule der Zukunft ist die multimedial unterstützte Hochschule, in der ein Teil des Studiums virtuell absolviert werden kann. Wenn die Hochschulen die Herausforderungen der Wissens- und Informationsgesellschaft annehmen wollen, muss Lehren und Lernen aktiver, kooperativer, individueller und problemorientierter werden. Die Hochschulen stellen sich z. Z. auf den Bedarf nach zeitlich und räumlich flexiblen Formen des Lernens und Forschens ein. Voraussetzung für eine erfolgreiche Integration von Information, Kommunikation und Multimedia ist der Aufbau einer leistungsfähigen Infrastruktur, die über die technologischen Aspekte hinaus organisatorische Koordinierungsstrukturen aufweist und adäquate Unterstützungs- und Serviceleistungen bereitstellt. Mit der Bedeutung von digitaler Informationsversorgung und -verarbeitung, digitaler Kommunikation und digitalen neuen Medien wachsen die Anforderungen an die Qualität und Zuverlässigkeit der Dienste. Dies betrifft Anforderungen sowohl an die zugrunde liegende Technik als auch an die Organisation. Die Ausprägung einer modernen Hochschule reagiert somit auf die internationalen und nationalen Entwicklungen und Trends. In erster Linie geht es darum, aufbauend auf die vorhandenen Informations- und Kommunikationsinfrastrukturen und die laufenden Multimedia-Projekte ein umfassendes Informations-, Planungs- und Management-System für alle Mitglieder der Universität aufzubauen. Das entstehende System soll eine Grundlage für alle Bereiche der Universität bilden, sich über Lehrveranstaltungen aller Fakultäten, Forschungsaktivitäten aller Institute, Personal- und Verwaltungsdaten sowie Infrastrukturen zu informieren und sich aktiv nach außen und innen darzustellen. Nach dem Vorbild erfolgreicher Unternehmen muss der universitätsweite Einsatz von Informationstechnologien und die Integration von Information, Kommunikation und Multimedia in den Hochschulen zur 'Chefsache' gemacht und Gegenstand strategischer Überlegungen und Planungen werden.
Confinement effects on the nuclear spin isomer conversion of H$_2$O
Creators: name: Turgeon, Pierre-Alexandre
name: Vermette, Jonathan
name: Alexandrowicz, Gil
name: Peperstraete, Yoann
name: Philippe, Laurent
name: Fillion, Jean-Hugues
name: Michaut, Xavier
name: Ayotte, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The mechanism for interconversion between the nuclear spin isomers (NSI) of H$_2$O remains shrouded in uncertainties. The temperature dependence displayed by NSI interconversion rates for H$_2$O isolated in an Argon matrix provides evidence that confinement effects are responsible for the dramatic increase in their kinetics with respect to the gas phase, providing new pathways for o-H$_2$O $\leftrightarrow$ p-H$_2$O conversion in endohedral compounds. This reveals intramolecular aspects of the interconversion mechanism which may improve methodologies for the separation and storage of NSI en route to applications in nuclear magnetic resonance spectroscopy and imaging. It may also improve astronomers' ability to use their relative abundance in the interstellar medium as proxies, thereby providing a valuable "astronomical clock".
The total synthesis of the proposed structures of the prevezols B and C
Creators: name: Leung, Anna Elizabeth
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The brominated diterpenes known as the ‘prevezols’, isolated from Laurencia obtusa obtained from the Ionian sea, have molecular frameworks unlike any that have been reported previously. Embedded within the carbon skeleton of each of the prevezols is a tertiary syn bromohydrin, posing a significant challenge to synthetic chemists. The synthesis of these compounds is further complicated by their partially-defined stereochemistry. The first chapter of this thesis discloses the previous work which has provided us with an arsenal of chemical transformations upon which to establish synthetic routes to the prevezols B and C, stereoisomers of one another. The proposed synthetic route to the prevezols B and C was based upon a convergent strategy, employing diastereoselective alkylation reactions between four stereochemically-divergent limonene-1,2-diol derivatives, and a key allylic iodide intermediate. Chapter 2 describes the synthesis of the key allylic iodide intermediate in eight steps from the commercially available mixture of cis/trans-(−)-limonene oxide. Chapter 3 discloses the asymmetric total synthesis of two of the proposed structures of prevezol C, via diastereoselective alkylation reactions employing the allylic iodide. Chapter 4 details the synthesis of two of the proposed structures of prevezol B in an analogous fashion. Inconsistency between the published data for the natural products and the synthetic diterpenes demands a structural revision of the prevezols B and C.
“ถุงสายรุ้ง” ปรากฎการณ์สินค้าไทยว่าด้วยเรื่องทรัพย์สินทางปัญญากับการละเมิดลิขสิทธิ์
Creators: name: ศรัณณ์พักตร์ แก้วเพชร
Publisher: name: Foundation of Just Society Network
Year: 2022
Subjects: Copyright infringement
Intellectual property
Patent
Rainbow bag
Balenciaga

description: Social Justice and Inequality Journal, 3, 3, 57-66
(200400) Alfred Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
อีสปอร์ต: กับดักหรือโอกาสในสังคมไทย
Creators: name: วัฒนา ธรรมลังกา
Publisher: name: Foundation of Just Society Network
Year: 2022
Subjects: Esports
Game addict
Healthy
Thai society

description: Social Justice and Inequality Journal, 3, 3, 67-79
Decomposition of tensor products involving a Steinberg module
Creators: name: Kildetoft, Tobias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20G05 (Primary), 20C33 (Secondary)

description: We study the decomposition of tensor products between a Steinberg module and a costandard module, both as a module for the algebraic group $G$ and when restricted to either a Frobenius kernel $G_r$ or a finite Chevalley group $G(\mathbb{F}_q)$. In all three cases, we give formulas reducing this to standard character data for $G$. Along the way, we define a bilinear form on the characters of finite dimensional $G$-modules and use this to give formulas for the dimension of homomorphism spaces between certain $G$-modules when restricted to either $G_r$ or $G(\mathbb{F}_q)$. Further, this form allows us to give a new proof of the reciprocity between tilting modules and simple modules for $G$ which has slightly weaker assumptions than earlier such proofs. Finally, we prove that in a suitable formulation, this reciprocity is equivalent to Donkin's tilting conjecture.
description: Published version, with a few additional corrections
Potential effects of Cerbera odollam leaf extracts and neriifolin exposure in breast cancer treatment and progression
Creators: name: Chung, Felicia
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Despite improvements in treatment options for breast cancer, breast cancer remains the most prevalent cancer affecting women worldwide. The heterogeneous nature of breast cancer tumors and the prevalence of drug resistance towards antiestrogen therapy are two major impediments in the treatment of breast cancer. Initial experiments conducted on the leaf extract of Cerbera odollam revealed that the extract contains an extremely potent cytostatic agent which is more effective towards hormone-responsive cell lines compared to hormone-independent cell lines. The active compound within the extract was determined to be neriifolin, which causes prolonged cytostatic effects for up to 10 days at a dose of 18.7 nM. Gene expression analyses indicate that the cytostatic activity of neriifolin is mediated by the estrogen receptor-alpha (ERα) – estrogen signaling pathway as well as p53-dependent induction of the cell cycle inhibitor, p21WAF1. Increased oxidative DNA damage was observed as a result of neriifolin treatment, suggesting that neriifolin-induced cell death and cytostaticity occurs in response to DNA damage resulting from treatment. A high resolution melt-based method was developed to enable rapid detection of DNA methylation changes on the ERα gene (ESR1) promoter. While the active C. odollam plant fraction resulted in hypermethylation on the ESR1 promoter, treatment with neriifolin caused no detectable changes of DNA methylation patterns, suggesting that neriifolin treatment would not result in antiestrogen resistance. ESR1 promoter hypermethylation was also observed in cells deficient in p53. A possible relationship between ERα silencing and the formation of oxidative DNA damage was also investigated.
The Element: How Finding Your Passion Changes Everything: ฉันเกิดมาเพื่อสิ่งนี้
Creators: name: อริสา สุมามาลย์
Publisher: name: Foundation of Just Society Network
Year: 2022
Subjects: The Element: How Finding Your Passion Changes Everything

description: Social Justice and Inequality Journal, 3, 3, 80-83
Electron Spin Resonance at the Level of 10000 Spins Using Low Impedance Superconducting Resonators
Creators: name: Eichler, C.
name: Sigillito, A. J.
name: Lyon, S. A.
name: Petta, J. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on electron spin resonance (ESR) measurements of phosphorus donors localized in a 200 square micron area below the inductive wire of a lumped element superconducting resonator. By combining quantum limited parametric amplification with a low impedance microwave resonator design we are able to detect around 20000 spins with a signal-to-noise ratio (SNR) of 1 in a single shot. The 150 Hz coupling strength between the resonator field and individual spins is significantly larger than the 1 - 10 Hz coupling rates obtained with typical coplanar waveguide resonator designs. Due to the larger coupling rate, we find that spin relaxation is dominated by radiative decay into the resonator and dependent upon the spin-resonator detuning, as predicted by Purcell.
AN ALGORITHM FOR DETERMINING THE STRUCTURAL PARTS OF PETRI MODELS-BASED COMPLEX SYSTEMS
Creators: name: Shmyrin Anatoly Mikhailovich, Lukyanova Elena Aleksandrovna
Publisher: name: TuEngr Group
Year: 2019
Subjects: Petri net
Petri models of complex systems
Model component
Complex systems simulation
reduction
C# (?-Sharp) language.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 10, 18, 10A18H: 1-10
Quasi-uniform Convergence in Dynamical Systems Generated by an Amenable Group Action
Creators: name: Łącka, Martha
name: Straszak, Marta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We study properties of the Weyl pseudometric associated with an action of a countable amenable group on a compact metric space. We prove that the topological entropy and the number of minimal subsets of the closure of an orbit are both lower semicontinuous with respect to the Weyl pseudometric. Furthermore, the simplex of invariant measures supported on the orbit closure varies continuously. We apply the Weyl pseudometric to Toeplitz sequences for amenable residually finite groups. We introduce the notion of a regular Toeplitz sequence for an arbitrary amenable residually finite group and demonstrate that all regular Toeplitz sequences define minimal and uniquely ergodic systems. We prove path-connectivity of this family with respect to the Weyl pseudometric. This leads to a new proof of a theorem of Fabrice Krieger, which says that the values of entropy of Toeplitz sequences can have arbitrary finite entropy.
Paleoecology and paleoenvironment of the Early Cretaceous theropod-dominated ichnoassemblage of the Los Corrales del Pelejón tracksite, Teruel Province, Spain
Creators: name: Castanera, Diego
name: Aurell, Marcos
name: Canudo, José I
name: Cuenca-Bescós, Gloria
name: Gasca, José Manuel
name: Bádenas, Beatriz
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370506
subject: Palaeontology (incl. palynology)
classificationCode: 310306
subject: Palaeoecology

description: Supplementary material (3D models) of some specimens of the publication "Paleoecology and paleoenvironment of the Early Cretaceous theropod-dominated ichnoassemblage of the Los Corrales del Pelejón tracksite, Teruel Province, Spain" published in Palaeogeography, Palaeoclimatology, Palaeoecology. Citation for this article: Castanera, D., Aurell, M., Canudo, J. I., Cuenca-Bescós, G., Gasca, J. M., & Bádenas, B. (2023). Paleoecology and paleoenvironment of the Early Cretaceous theropod-dominated ichnoassemblage of the Los Corrales del Pelejón tracksite, Teruel Province, Spain. Palaeogeography, Palaeoclimatology, Palaeoecology, 111761. https://doi.org/10.1016/j.palaeo.2023.111761
title: Πειραματική μελέτη του κρυσταλλικού σπινθηριστή Βρωμιούχου Δημητρίου (CeBr3) για ιατρικές εφαρμογές
title: X-ray detection and spectral compatibility properties of Cerium Bromide (CeBr3) single crystal for medical imaging applications
titleType: AlternativeTitle
Creators: name: Βελισσαράκος, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2022
Subjects: Βρωμιούχο Δημήτριο
Ιατρικές εφαρμογές
Σπινθηριστής

description: Οι σπινθηριστές με τιμές υψηλής απόδοσης φωταύγειας (LY) παρουσιάζουν ενδιαφέρον για εφαρμογές ιατρικής απεικόνισης, εφαρμογές σε ακραίες περιβαλλοντικές συνθήκες, σε μη καταστροφικές δοκιμές (NDT) κ.λπ. Το CeBr3 έχει LY 60000 φωτονίων ανά MeV, τιμή πολύ υψηλότερη από άλλα αποτελεσματικά υλικά, όπως το Lu3Al5O12:Ce (25000 φωτόνια/MeV). Συνεπώς, οι ιδιότητές ανίχνευσης ακτίνων-Χ του συγκεκριμένου υλικού, θα ήταν ενδιαφέρον να εξεταστούν για εφαρμογές ιατρικής απεικόνισης. Εξετάστηκαν οι ιδιότητες ανίχνευσης και απορρόφησης ακτίνων-Χ ενός δείγματος CeBr3 μονοκρυστάλλου, καθώς και η συμβατότητα του παραγόμενου φωτός του, με διάφορους οπτοηλεκτρονικούς αισθητήρες. Σε αυτή τη μελέτη υπολογίστηκαν η κβαντική ανιχνευτική αποδοτικότητα (QDE) και η αποδοτικότητα απορρόφησης ενέργειας (EAE) του CeBr3. Τα ευρήματα συγκρίθηκαν με δεδομένα για μονοκρυστάλλους Lu3Al5O12:Ce και CaF2:Eu 10x10x10 mm3. Το οπτικό φάσμα που παρήχθη από το CeBr3 βρέθηκε να παρουσιάζει αρκετά καλή συσχέτιση με τη φασματική απόκριση διαφόρων εμπορικών οπτικών αισθητήρων, αποδίδοντας τιμές φασματικής συμβατότητας υψηλότερες από 93% για διάφορες φωτοκαθόδους, π.χ. GaAs (94%), E-S20 (95%), bialkali and multialkali (95-97%), καθώς και με επίπεδους φωτοπολλαπλασιαστές ευαισθησίας θέσης (95-99%). Οι ιδιότητες απορρόφησης ενέργειας του CeBr3 βρέθηκαν υψηλότερες από εκείνες των Lu3Al5O12:Ce και CaF2:Eu για τάσεις ακτίνων-Χ μεγαλύτερες από 100 kVp. Η κβαντική ανιχνευτική αποδοτικότητα ήταν 100% σε όλο το εξεταζόμενο εύρος ενεργειών. Παρόλο που το CeBr3 είναι υγροσκοπικό και έχει μέτρια πυκνότητα 5,1 g/cm3, τα αποτελέσματα QDE, EAE και φασματικής συμβατότητας είναι πολλά υποσχόμενα για εφαρμογές ιατρικής απεικόνισης.
(200404) Ernest Allfred Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Gauge-theoretic invariants for topological insulators: A bridge between Berry, Wess-Zumino, and Fu-Kane-Mele
Creators: name: Monaco, Domenico
name: Tauber, Clément
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 35J10, 81Q30, 81Q70

description: We establish a connection between two recently-proposed approaches to the understanding of the geometric origin of the Fu-Kane-Mele invariant $\mathrm{FKM} \in \mathbb{Z}_2$, arising in the context of 2-dimensional time-reversal symmetric topological insulators. On the one hand, the $\mathbb{Z}_2$ invariant can be formulated in terms of the Berry connection and the Berry curvature of the Bloch bundle of occupied states over the Brillouin torus. On the other, using techniques from the theory of bundle gerbes it is possible to provide an expression for $\mathrm{FKM}$ containing the square root of the Wess-Zumino amplitude for a certain $U(N)$-valued field over the Brillouin torus. We link the two formulas by showing directly the equality between the above mentioned Wess-Zumino amplitude and the Berry phase, as well as between their square roots. An essential tool of independent interest is an equivariant version of the adjoint Polyakov-Wiegmann formula for fields $\mathbb{T}^2 \to U(N)$, of which we provide a proof employing only basic homotopy theory and circumventing the language of bundle gerbes.
description: 23 pages, 1 figure. To appear in Letters in Mathematical Physics
(200409) Rebecca Norrie
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Giant pressure dependence and dimensionality switching in a metal-organic quantum antiferromagnet
Creators: name: Wehinger, Björn
name: Fiolka, Christoph
name: Lanza, Arianna
name: Scatena, Rebecca
name: Kubus, Mariusz
name: Grockowiak, Audrey
name: Coniglio, William A.
name: Graf, David
name: Skoulatos, Markos
name: Chen, Jyong-Hao
name: Gukelberger, Jan
name: Casati, Nicola
name: Zaharko, Oksana
name: Macchi, Piero
name: Krämer, Karl W.
name: Tozer, Stan
name: Mudry, Christopher
name: Normand, Bruce
name: Rüegg, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an extraordinary pressure dependence of the magnetic interactions in the metal-organic system [(CuF$_2$(H$_2$O)$_2$)$_2$pyrazine]. At zero pressure, this material realizes a quasi-two-dimensional (Q2D) spin-1/2 square-lattice Heisenberg antiferromagnet. By high-pressure, high-field susceptibility measurements we show that the dominant exchange parameter is reduced continuously by a factor of 2 upon compression. Above 18 kbar, a phase transition occurs, inducing an orbital re-ordering that switches the dimensionality, transforming the Q2D lattice into weakly coupled chains (Q1D). We explain the microscopic mechanisms for both phenomena by combining detailed x-ray and neutron diffraction results with quantitative modeling using spin-polarized density functional theory.
description: Revised manuscript. Crystallographic information files are contained in the source, please select Download "Other formats"
Table data: Brazilian Forest Code
Creators: name: Da Silva, Ramon Felipe Bicudo
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Environmental Studies
subject: Social and Behavioral Sciences
subject: Agriculture
subject: Agricultural and Resource Economics
subject: Life Sciences
subject: Deforestation
subject: Brazilian Forest Code
subject: Environmental policy
subject: private rural property

description: The data are represented by two tables with information from analysis on Brazilian biomes (Amazon, Atlantic Forest, and Cerrado) to evaluate impacts of the Forest Code.
ATP (Adenosine triphosphate) Quest: Board Game on Cellular Respiration for Face- to-Face and Remote Learning
Creators: name: Miculob, Orland A.
Publisher: name: Science Education Association (Thailand)
Year: 2022
Subjects: Board game
normalized gain
intrinsic motivation
formal instruction

description: International Journal of Science Education and Teaching (IJSET), 1, 3, 128-159
A Root-Node Based Algebraic Multigrid Method
Creators: name: Manteuffel, Thomas A.
name: Olson, Luke N.
name: Schroder, Jacob B.
name: Southworth, Ben S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F10, 65M22, 65M55

description: This paper provides a unified and detailed presentation of root-node style algebraic multigrid (AMG). Algebraic multigrid is a popular and effective iterative method for solving large, sparse linear systems that arise from discretizing partial differential equations. However, while AMG is designed for symmetric positive definite matrices (SPD), certain SPD problems, such as anisotropic diffusion, are still not adequately addressed by existing methods. Non-SPD problems pose an even greater challenge, and in practice AMG is often not considered as a solver for such problems. The focus of this paper is on so-called root-node AMG, which can be viewed as a combination of classical and aggregation-based multigrid. An algorithm for root-node is outlined and a filtering strategy is developed, which is able to control the cost of using root-node AMG, particularly on difficult problems. New theoretical motivation is provided for root-node and energy-minimization as applied to symmetric as well non-symmetric systems. Numerical results are then presented demonstrating the robust ability of root-node to solve non-symmetric problems, systems-based problems, and difficult SPD problems, including strongly anisotropic diffusion, convection-diffusion, and upwind steady-state transport, in a scalable manner. New, detailed estimates of the computational cost of the setup and solve phase are given for each example, providing additional support for root-node AMG over alternative methods.
description: 35 pages, 10 figures
Exact solution of inverse kinematic problem of 6R serial manipulators using Clifford Algenbra : applications of Clifford Algebra in robotics
Creators: name: Azmy, Eriny W.
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The inverse kinematic problem of 6R serial manipulators has been the focus of many researchers for several decades now. The main interest has been in inverse kinematics of 6R serial manipulators with arbitrary geometry. This problem has been always an obstacle in designing industrial robots, as they had to be de­ signed in such a simple way to avoid complication of solving this problem. Solving the Inverse Kinematic Problem is about finding a set of six angles of rotations that correspond to a given pose of the end effector (gripper). One of the major difficulties in solving this problem was obtaining an exact solution in a simple form ; which is very important for speeding up the process of calculation and minimizing the calculations errors that can easily occur in algebraic solutions. Many solutions have been suggested for this problem varying between numerical, algebraic or geometric solutions. It has been previously shown that the joints of a general 6R manipulator can orient themselves in 16 different configurations for a given pose of end effector. However, there are no good practical solutions available that give a level of performance expected of industrial manipulators. In this work, Clifford Algebra was used to model the Inverse Kinematic Prob lem of 6R serial manipulators and an algorithm has been developed to solve this problem by setting one angle to be free and finding the other angles in terms of this free angle. Based on this solution, there exist an infinite number of solutions for a union of intervals of the free angle.
(200403) Edgar Charles Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Role of the radiation-reaction electric field in the optical response of two-dimensional crystals
Creators: name: Merano, Michele
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A classical theory of a radiating two-dimensional crystal is proposed and an expression for the radiative-reaction electric field is derived. This field plays an essential role in connecting the microscopic electromagnetic fields acting on each dipole of the crystal to the macroscopic one, via the boundary conditions for the system. The expression of the radiative-reaction electric field coincides with the macroscopic electric field radiating from the crystal and, summed to the incident electric field, generates the total macroscopic electric field.
description: Two-dimensional crystal, metasurface, local field, radiative-reaction, Fresnel, boundary condition
Amtliche Mitteilungen der Universität Dortmund Nr. 12
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1972
Subjects: subject: 080

description: Änderung der Dipl.-Prüfungsordnung für die Fachrichtung Raumplanung
description: Änderung der vorläufigen Prüfungsordnung für die Abteilung Chemietechnik
description: Vorläufige Promotionsordnung für die Abteilung Fertigungstechnik
description: Amtliche Mitteilungen der Universität Dortmund ; 12
title: Εφαρμογή Android υποβοήθησης ατόμων με προβλήματα όρασης
title: Android Application for the visually impaired
titleType: AlternativeTitle
Creators: name: Παπαδημητρίου, Ηλιάνα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Εφαρμογή για κινητά
subject: Άτομα με προβλήματα όρασης
subject: Java
subject: ML Kit
subject: Καταγραφή ομιλίας
subject: Ανάγνωση κειμένου
subject: Αναγνώριση χρωμάτων

description: Στις μέρες μας υπάρχουν πολλών ειδών αναπηρίες που κάνουν αρκετά δύσκολο ή ακόμα και αδύνατο το έργο των ατόμων που έχουν κάποια αναπηρία να κάνουν απλές καθημερινές δραστηριότητες. Αυτές οι αναπηρίες μπορεί να είναι είτε σε μορφή όρασης, είτε σε ακοής είτε και σε σωματική. Για αυτό το λόγο, έχουμε αναπτύξει μία εφαρμογή για κινητά τηλέφωνα που έχει σχεδιαστεί για να βοηθά τους χρήστες με προβλήματα όρασης. Η βασική λειτουργία αυτής της εφαρμογής είναι να βοηθά τους χρήστες να ερμηνεύουν τα ερεθίσματα που βρίσκονται στο περιβάλλον τους χωρίς να χρειάζονται να έρθουν σε επαφή μαζί τους αλλά και χωρίς να γνωρίζουν τι είναι. Η ανάπτυξη αυτής της εφαρμογής για κινητά περιλαμβάνει την χρήση της γλώσσας προγραμματισμού Java αλλά και του Android Studio ως ένα ολοκληρωμένο περιβάλλον ανάπτυξης. Ακόμη, χρησιμοποιήσαμε και μία συσκευή Android προκειμένου να δοκιμάζουμε και να εξετάζουμε συνεχώς την εφαρμογή. Η εφαρμογή που αναπτύξαμε χρησιμοποιεί το ML Kit, την βιβλιοθήκη OpenCV αλλά και βιβλιοθήκες που παρέχει το ίδιο το Android προκειμένου να διευκολύνουν τα άτομα με προβλήματα όρασης. Μερικές από τις λειτουργίες που παρέχονται για την διευκόλυνση αυτή είναι η αναγνώριση κειμένου μέσω της φυσικής κάμερας, η δυνατότητα μετατροπής κειμένου σε ομιλία μέσω του μικροφώνου, η αναγνώριση των ματιών σε ένα πρόσωπο αλλά και το ξεκλείδωμα του τηλεφώνου μέσω του δακτυλικού αποτυπώματος. Παρόλα αυτά η εφαρμογή έχει αναπτυχθεί μόνο για άτομα που διαθέτουν συσκευή Android.
Invisible Decays in Higgs Pair Production
Creators: name: Banerjee, Shankha
name: Batell, Brian
name: Spannowsky, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Observation of Higgs pair production is an important long term objective of the LHC physics program as it will shed light on the scalar potential of the Higgs field and the nature of electroweak symmetry breaking. While numerous studies have examined the impact of new physics on di-Higgs production, little attention has been given to the well-motivated possibility of exotic Higgs decays in this channel. Here we investigate the consequences of exotic invisible Higgs decays in di-Higgs production. We outline a search sensitive to such invisible decays in the $b\bar b+{\not \!\! E}_T$ channel. We demonstrate that probing invisible branching ratios of order 10$\%$ during the LHC's high-luminosity run will be challenging, but in resonance enhanced di-Higgs production, this final state can become crucial to establish the existence of physics beyond the Standard Model at collider energies. We also briefly discuss the outlook for other exotic Higgs decay modes and the potential to observe such exotic decays in the di-Higgs channel.
description: 26 pages, 3 figures and 2 tables; v2: Some minor corrections to figures; Implemented study constraining Higgs invisible BR and compared results with limits obtained using VBF; References updated
Polariton condensates in a semiconductor microcavity influenced by all-optical methods
Creators: name: Wishahi, Franziska
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: Bose-Einstein condensate
subject: Polariton
subject: Semiconductor microcavity
subject: 530

description: It is hard to picture today's society without fast data exchange, in private and business matters. This revolution in telecommunication is to a large extent related to the massive utilization of optical fibers as a tool for conveying information over large distances. The interface between optical data transmission and electronic circuits are the so-called optoelectronic devices such as semiconductor lasers. As a next step, it could be desirable to switch from electronic to optical data processing. Polariton condensates could be perfect candidates for a realization of optical logic gates. Their photonic nature provides a high speed of exchanging information and their excitonic character opens the field to nonlinear switching processes due to Coulomb interactions. The future task is it to fully control and manipulate the properties of the polariton condensate. In this thesis, the formation of an exciton-polariton condensate in a semiconductor microcavity was studied with an emphasis on all-optical methods to influence and control the properties of the polariton condensate. The experimental methods range from excitation spot shaping using a spatial-light-modulator to the perturbation of a polariton condensate with a nonresonant, pulsed laser beam.
Italian validation of the Historical-Clinical-Risk Management-20 Version 3 among teenagers admitted to the youth justice system
Creators: name: Sideli, Lucia
name: Carpentieri, Renato
name: Caprì, Chiara
name: Bracalenti, Raffaele
name: Cavallo, Josephin
name: Schimmenti, Adriano
name: Caretti, Vincenzo
Publisher: name: Mediterranean Journal of Clinical Psychology
Year: 2024
Subjects: Assessment; Clinical psychology; Criminal Behavior; HCR-20V3; Juvenile Justice; Youths.

description: Background: The Historical Clinical Risk Management-20 third version (HCR-20V3) is a semi-structured interview for the assessment of past, current, and prospective risk factors for violent behaviors. Accumulating research across various forensic and clinical populations, has found that the HCR-20V3 is a psychometrically robust measure. However, to our knowledge, there is limited data on the use of the HCR-20 among adolescents. This study sought to investigate the psychometric properties of the HCR-20V3 in an Italian teen sample.


Methods: Sixty-one male teenagers, aged between 14 and 19, admitted to the Italian juvenile justice system were involved in the study. To assess convergent validity with measures of antisocial traits and personality impairments, the associations between the HCR-20V3, the Psychopathy Checklist: Youth Version (PCL:YV), and the Structured Clinical Interview for DSM-5-Alternative Model of Personality Disorders Module I (SCID-5-AMPD), were examined. Known group validity was assessed by comparing participants with and without recidivism at the 6- and the 12-month follow-up.


Results: The HCR-20V3 showed good internal consistency: Cronbach’s alpha (risk presence) = .88; Cronbach’s alpha (risk relevance) .87. The split-half reliability was also good: Spearman-Brown (presence) = .92; Spearman-Brown (relevance) = .92) Convergent validity with the PCL:YV and the SCID-AMPD total score and domains were moderate-to-large in size (Pearson’s r range .34 to .83, and .49 to .69, respectively). Compared to participants who had not been reported for a new crime, those who had a recidivism at the 6- and 12-month follow-up showed higher, albeit non-significant, scores both in the presence (Mann-Whithney’s U = 133, p =.093; U = 243, p =.089, respectively) and the relevance items (U = 131, p =.083; U = 266, p =.185, respectively).

Conclusions: Results suggest that the HCR-20V3 is a suitable measure for assessing risk of violence in the juvenile justice systems. Considering the lack of tools for assessing youth violent behavior, HCR-20V3 might significantly contribute to the assessment of critical risk factors for recidivism, potential targets for interventions, and response to treatment.
description: Mediterranean Journal of Clinical Psychology, Vol 12, No 2 (2024)
Torturers and their victims: Theory, research, and clinical perspectives
Creators: name: Marchese, Elisa Vittoria
name: Schimmenti, Adriano
Publisher: name: Mediterranean Journal of Clinical Psychology
Year: 2024
Subjects: Abuse; Clinical psychology; Torture; Victim; Violence; PTSD.

description: This article provides an overview of the psychological dynamics associated with torture and examines its consequences on the victims. Initially, we investigate the psychological processes driving torturers to engage in extreme violence and brutality. Central to this exploration are the concepts of dehumanization and desensitization, which allow torturers to emotionally distance themselves from their victims and enact their aggressive behaviors. We elucidate how dehumanization and desensitization are often associated with the presence of a disordered personality, such as psychopathy, antisocial personality disorder, and narcissistic personality disorder. Subsequently, we delve into the complex interplay of survival and defense mechanisms utilized by victims during the traumatic experience of torture. We examine how victims may form a traumatic bond with their tormentors as a coping mechanism for their physical and psychological suffering—a bond that may persist even after their release. This bond may manifest as a heteronomous will, in which victims continue to adhere to the torturer’s demands even after liberation, resulting in a deconstruction of their identity and a profound sensation of existing as “living dead.” This enduring bound can profoundly impact victims’ emotions, behaviors, and relationships, contributing to the onset of severe clinical conditions, with evidence showing increased prevalence of post-traumatic stress disorder, anxiety, depression, and somatic symptoms among survivors. Finally, we evaluate therapeutic interventions that have demonstrated effectiveness in treating individuals who have endured torture. Drawing from a diverse range of therapeutic approaches, such as psychodynamic psychotherapy, trauma-focused cognitive-behavioral therapy, narrative exposure therapy, and the wraparound approach, clinicians can address the multifaceted psychological needs of torture survivors. Through empathetic and respectful therapeutic interventions, torture victims can receive the necessary support to navigate through the processing of their traumatic experiences. Consequently, they can regain a sense of agency and restore their self-esteem, thereby progressing along the trajectory towards achieving healing and recovery.
description: Mediterranean Journal of Clinical Psychology, Vol 12, No 2 (2024)
Lateral body center of mass sway during self-paced versus fixed speed treadmill walking
Creators: name: Jackson, Troilyn Ashanté
name: 0000-0003-3097-4079
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Self-paced treadmill
Treadmill
Center of mass sway
Older adults
Aging

description: Treadmill walking has been commonly used for gait training and is a safe and effective approach to assist older adults to improve balance and mobility outcomes. Recent development of self-paced treadmill controllers allow for variations in walking speed and offers the opportunity to better emulate overground walking while on a treadmill. However, how self-paced treadmill condition affects lateral balance stability during walking remains unclear. The primary purposes of this study were to (1) determine whether lateral body center of mass (COM) sway was different between self-paced and fixed speed treadmill conditions in older adults, and (2) identify potential sagittal and frontal plane gait characteristics that predict changes in body lateral sway across treadmill conditions. Seventeen healthy older adults walked at their preferred walking speeds on the fixed speed (FS) treadmill condition and the self-paced (SP) treadmill condition. Our results showed that older adults increased lateral COM sway during the SP condition compared to the FS condition (p < 0.01). In addition, this increase in the lateral COM sway was predicted by changes in medial ground reaction force (β = 0.57), step width (β = 0.39), and anterior-posterior center of mass sway (β = 0.3). These results indicated that walking with adaptive belt speed treadmill affected frontal plane stepping biomechanics that were associated with lateral stability. Findings may provide important information for gait rehabilitation strategy designs that consider adopting self-paced treadmill training for older adults.
Festphasensynthese lipidierter Peptide und Benzodiazepindione
Creators: name: Ludolph, Björn
Publisher: name: Universität Dortmund
Year: 2004
Subjects: subject: Lipopeptide
subject: Ras-Peptide
subject: Festphasensynthese
subject: Benzodiazepindione
subject: lipopeptids
subject: Ras-peptids
subject: solid phase synthesis
subject: benzodiazepinedions
subject: 540

description: Lipopeptide sind wertvolle Werkzeuge zur Aufklärung biologischer Fragestellungen im molekularen Detail. In dieser Arbeit wurden effiziente Festphasensynthese-Methoden zur Darstellung verschiedener Lipopeptide entwickelt. Schlüsselelement in der Synthese des polybasischen, biotinylierten und farnesylierten C-Terminus des K-Ras4B-Proteins war die Anknüpfung des Peptids über eine Lysinseitenkette und mittels des säurelabilen Trityl-Linkers an die feste Phase. Als Schutzgruppen kamen die orthogonalen Fmoc- und Aloc-Gruppen zum Einsatz, die Lipidmodifikation wurde durch einen farnesylierten Cystein-Baustein eingeführt. Eine allgemeinere Methode zur Festphasensynthese lipidierter Peptide wurde unter Verwendung des mild oxidativ spaltbaren Phenylhydrazid-Linkers entwickelt. Hierbei wurden die Peptidketten mittels Fmoc-Chemie an der festen Phase aufgebaut. Der Schlüsselschritt bestand in der Einführung der säurelabilen Farnesyl- und der basenlabilen Palmitoylgruppen an der festen Phase nach entsprechender Deblockierung der Thiolgruppen der Cysteinseitenketten. Die Methode gestattet neben der Synthese zweifach und unterschiedlich lipidierter Peptide insbesondere als Methylester außerdem die Einführung von Fluoreszenz- oder der Maleimid-Gruppe. Die Synthese von 42 lipidierten Benzodiazepindionen als Peptidomimetika erfolgte durch eine Kombination von Lösungs- und Festphasensynthese. Das Benzodiazepindion-Gerüst wurde in Lösung aufgebaut und über eine primäre Amingruppe und unter Verwendung des Trityl-Linkers an die feste Phase geknüpft. Am polymeren Träger wurden an zwei Positionen des Benzodiazepindions unterschiedliche Bausteine als Sulfonamide und als Amide angeknüpft. Die Abspaltung wurde unter mild sauren Bedingungen durchgeführt.
Effect of cognitive training on executive functions and anxiety in patients with mild cognitive impairment: a systematic review
Creators: name: Cardona Tangarife, Maria Alexandra
name: Landínez Martínez, Daniel Alfredo
Publisher: name: Mediterranean Journal of Clinical Psychology
Year: 2024
Subjects: Anxiety; Cognitive training; Executive functioning; Mild cognitive impairment.

description: Introduction: Previous studies have reported changes in executive functions (working memory, inhibition, cognitive flexibility) and mood (anxiety and depression) in patients with Mild Cognitive Impairment (MCI). Different tools have shown to improve cognitive performance in this population, and computerized cognitive training is one of the most studied strategies. However, there is no consensus about near-transfer or far-transfer effects. Therefore, a systematic review is relevant for determining the effects of cognitive training on executive functions and mood. Aim: This systematic review aims to identify the effect of cognitive training on executive functions and anxiety in patients with MCI.


Methods: For the systematic search, the following search equation was used: “mild cognitive impairment” AND “executive functioning” AND “cognitive training” AND “anxiety”. We retrieved a total of 525 papers, but only 37 of them met the inclusion criteria. Articles published between January 2003 and February 2023 were included.


Results: The results revealed two research trends: (a) the effect of computerized cognitive training and virtual reality on executive functions and anxiety in people with MCI and (b) the effect of emerging intervention strategies on executive functions and anxiety in people with MCI. The effect of cognitive training on inhibitory control, working memory, reasoning, and attention was found to be predominant, even when it is not significant on all these variables. Studies on the effect of cognitive training on anxiety are still limited in number.


Conclusion: Conducting longitudinal studies is necessary to understand the effect and underlying mechanisms of cognitive training.
description: Mediterranean Journal of Clinical Psychology, Vol 12, No 2 (2024)