cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing transport mechanisms of BaFe2As2 superconducting films and grain boundary junctions by noise spectroscopy
Creators: name: Barone, C.
name: Romeo, F.
name: Pagano, S.
name: Adamo, M.
name: Nappi, C.
name: Sarnelli, E.
name: Kurth, F.
name: Iida, K.
Publisher: name: London : Nature Publishing Group
Year: 2014
Subjects: subject: Applied physics
subject: Characterization and analytical techniques
subject: Superconducting properties and materials
subject: 620

description: An important step forward for the understanding of high-temperature superconductivity has been the discovery of iron-based superconductors. Among these compounds, iron pnictides could be used for high-field magnet applications, resulting more advantageous over conventional superconductors, due to a high upper critical field as well as its low anisotropy at low temperatures. However, the principal obstacle in fabricating high quality superconducting wires and tapes is given by grain boundaries. In order to study these effects, the dc transport and voltage-noise properties of Co-doped BaFe2As2 superconducting films with artificial grain boundary junctions have been investigated. A specific procedure allows the separation of the film noise from that of the junction. While the former shows a standard 1/f behaviour, the latter is characterized by an unconventional temperature-dependent multi-Lorentzian voltage-spectral density. Moreover, below the film superconducting critical temperature, a peculiar noise spectrum is found for the grain boundary junction. Possible theoretical interpretation of these phenomena is proposed.
Carer-supported home-based exercises designed to target physical activity levels and functional mobility after stroke: a scoping review
Creators: name: Jovic, E
name: Ahuja, KDK
name: Lawler, Katherine
name: Hardcastle, S
name: Bird, ML
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 44
subject: Human society
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: No description supplied
Interaction-induced singular Fermi surface in a high-temperature oxypnictide superconductor
Creators: name: Charnukha, A.
name: Thirupathaiah, S.
name: Zabolotnyy, V.B.
name: Büchner, B.
name: Zhigadlo, N.D.
name: Batlogg, B.
name: Yaresko, A.N.
name: Borisenko, S.V.
Publisher: name: London : Nature Publishing Group
Year: 2015
Subjects: subject: Electronic properties and materials
subject: Phase transitions and critical phenomena
subject: Superconducting properties and materials
subject: 620

description: In the family of iron-based superconductors, LaFeAsO-type materials possess the simplest electronic structure due to their pronounced two-dimensionality. And yet they host superconductivity with the highest transition temperature Tc ≈ 55K. Early theoretical predictions of their electronic structure revealed multiple large circular portions of the Fermi surface with a very good geometrical overlap (nesting), believed to enhance the pairing interaction and thus superconductivity. The prevalence of such large circular features in the Fermi surface has since been associated with many other iron-based compounds and has grown to be generally accepted in the field. In this work we show that a prototypical compound of the 1111-type, SmFe0.92Co0.08AsO , is at odds with this description and possesses a distinctly different Fermi surface, which consists of two singular constructs formed by the edges of several bands, pulled to the Fermi level from the depths of the theoretically predicted band structure by strong electronic interactions. Such singularities dramatically affect the low-energy electronic properties of the material, including superconductivity. We further argue that occurrence of these singularities correlates with the maximum superconducting transition temperature attainable in each material class over the entire family of iron-based superconductors.
Static $\bar{Q}Q$ pair free energy and screening masses from correlators of Polyakov loops: continuum extrapolated lattice results at the QCD physical point
Creators: name: Borsányi, Szabolcs
name: Fodor, Zoltán
name: Katz, Sándor D.
name: Pásztor, Attila
name: Szabó, Kálmán K.
name: Török, Csaba
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the correlators of Polyakov loops, and the corresponding gauge invariant free energy of a static quark-antiquark pair in 2+1 flavor QCD at finite temperature. Our simulations were carried out on $N_t$ = 6, 8, 10, 12, 16 lattices using Symanzik improved gauge action and a stout improved staggered action with physical quark masses. The free energies calculated from the Polyakov loop correlators are extrapolated to the continuum limit. For the free energies we use a two step renormalization procedure that only uses data at finite temperature. We also measure correlators with definite Euclidean time reversal and charge conjugation symmetry to extract two different screening masses, one in the magnetic, and one in the electric sector, to distinguish two different correlation lengths in the full Polyakov loop correlator.
THE ROLE OF TRAIT AND SPECIFIC EXPECTATIONS IN THE EXPERIENCE OF DYSMENORRHEA
Creators: name: Fortney, Sarah Katherine
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 520302
subject: Clinical psychology
classificationCode: 520304
subject: Health psychology

description: Dysmenorrhea is the most common pain condition in reproductive-aged women and is characterized by pain during menstruation. Dysmenorrhea has far-reaching effects, such as increased psychological distress, increased relationship problems, reduced physical activity, and decreased sleep efficiency. It is the leading cause of absenteeism in this population. Though dysmenorrhea impacts many women and has such far-reaching effects, it has not been studied as extensively as other pain conditions, specifically regarding trait expectations and specific expectations. In other pain conditions, hope and optimism, the two most studied trait expectations, are protective factors for pain severity, interference, and the psychological effects of pain. Trait expectations additionally predict specific expectations, with hope predicting specific expectations related to the self, and optimism predicting specific expectations related to experiences. Both self- and experience-expectations predict outcomes, such as pain severity and pain tolerance. The current study sought to 1) examine the factor structure of specific expectations for dysmenorrhea; 2) examine the roles of trait and specific expectations in predicting dysmenorrhea; and 3) examine the roles of trait expectations and dysmenorrhea in predicting psychological adjustment. A longitudinal study of 389 menstruating women, over the age of 18, who could read and write English was conducted through CloudResearch. Confirmatory factor analysis and mixed latent- and measured-variable path analysis were used. Results indicated two distinct factors of specific expectations, pain-expectation and self- expectation. Hope predicted self-expectation, which predicted dysmenorrhea interference. Pain- expectation predicted dysmenorrhea severity and interference. Additionally, both hope and optimism predicted psychological adjustment. Dysmenorrhea interference predicted psychological distress. However, trait expectations did not predict dysmenorrhea. This study is the first to examine the associations among trait expectations, specific expectations, and dysmenorrhea and expands on the differences between dysmenorrhea and other pain conditions.
title: Advances in Parametric and Model-Form Uncertainty Quantification in Canonical Aeroelastic Systems
Creators: name: Chassaing, Jean-Camille
name: Nitschke, Christian
name: Vincenti, Angela
name: Cinnella, Paola
name: Lucor, Didier
Publisher: name: ONERA
Year: 2018
Subjects: NO KEYWORDS

description: Uncertainty quantification is going to play a crucial role in the aeroelastic design and optimization of aircraft. Stochastic aeroelastic models are currently being considered to account for manufacturing tolerance in material properties, variability in flight conditions or uncertainty in the aeroelastic model itself. In this paper, some challenging issues in the development of efficient and robust stochastic solvers are reported within the framework of canonical aeroelastic systems. First, independent or correlated parametric uncertainties are propagated to compute the probability density function of the critical flutter velocity or the limit cycle oscillations in the presence of discontinuous responses. Secondly, inverse stochastic aeroelastic problems are addressed, in which experimental data are used to calibrate several stochastic aerodynamic models within a Bayesian framework. Studied configurations concern linear and non-linear pitching and plunging airfoils, and the stochastic flutter of a cantilevered straight composite wing subject to ply angle and thickness uncertainties.
description: AerospaceLab Journal, Issue 14, September 2018; ISSN: 2107-6596
Two distinct superconducting phases in LiFeAs
Creators: name: Nag, P.K.
name: Schlegel, R.
name: Baumann, D.
name: Grafe, H.-J.
name: Beck, R.
name: Wurmehl, S.
name: Büchner, B.
name: Hess, C.
Publisher: name: London : Nature Publishing Group
Year: 2016
Subjects: subject: Electronic properties and materials
subject: Superconducting properties and materials
subject: 620

description: A non-trivial temperature evolution of superconductivity including a temperature-induced phase transition between two superconducting phases or even a time-reversal symmetry breaking order parameter is in principle expected in multiband superconductors such as iron-pnictides. Here we present scanning tunnelling spectroscopy data of LiFeAs which reveal two distinct superconducting phases: at = 18 K a partial superconducting gap opens, evidenced by subtle, yet clear features in the tunnelling spectra, i.e. particle-hole symmetric coherence peak and dip-hump structures. At Tc = 16 K, these features substantiate dramatically and become characteristic of full superconductivity. Remarkably, the distance between the dip-hump structures and the coherence peaks remains practically constant in the whole temperature regimeT ≤ . This rules out the connection of the dip-hump structures to an antiferromagnetic spin resonance.
Deep Reinforcement Learning of IoT System Dynamics for Optimal Orchestration and Boosted Efficiency
Creators: name: Shi, Haowei
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 461103
subject: Deep learning
classificationCode: 461104
subject: Neural networks
classificationCode: 461105
subject: Reinforcement learning

description: This thesis targets the orchestration challenge of the Wearable Internet of Things (IoT) systems, for optimal configurations of the system in terms of energy efficiency, computing, and data transmission activities. We have firstly investigated the reinforcement learning on the simulated IoT environments to demonstrate its effectiveness, and afterwards studied the algorithm on the real-world wearable motion data to show the practical promise. More specifically, firstly, challenge arises in the complex massive-device orchestration, meaning that it is essential to configure and manage the massive devices and the gateway/server. The complexity on the massive wearable IoT devices, lies in the diverse energy budget, computing efficiency, etc. On the phone or server side, it lies in how global diversity can be analyzed and how the system configuration can be optimized. We therefore propose a new reinforcement learning architecture, called boosted deep deterministic policy gradient, with enhanced actor-critic co-learning and multi-view state?transformation. The proposed actor-critic co-learning allows for enhanced dynamics abstraction through the shared neural network component. Evaluated on a simulated massive-device task, the proposed deep reinforcement learning framework has achieved much more efficient system configurations with enhanced computing capabilities and improved energy efficiency. Secondly, we have leveraged the real-world motion data to demonstrate the potential of leveraging reinforcement learning to optimally configure the motion sensors. We used paradigms in sequential data estimation to obtain estimated data for some sensors, allowing energy savings since these sensors no longer need to be activated to collect data for estimation intervals. We then introduced the Deep Deterministic Policy Gradient algorithm to learn to control the estimation timing. This study will provide a real-world demonstration of maximizing energy efficiency wearable IoT applications while maintaining data accuracy. Overall, this thesis will greatly advance the wearable IoT system orchestration for optimal system configurations.
Universal electronic structure of polar oxide hetero-interfaces
Creators: name: Treske, Uwe
name: Heming, Nadine
name: Knupfer, Martin
name: Büchner, Bernd
name: Di Gennaro, Emiliano
name: Khare, Amit
name: Di Uccio, Umberto Scotti
name: Granozio, Fabio Miletto
name: Krause, Stefan
name: Koitzsch, Andreas
Publisher: name: London : Nature Publishing Group
Year: 2015
Subjects: subject: Electronic properties and materials
subject: Phase transitions and critical phenomena
subject: Superconducting properties and materials
subject: Surfaces
subject: interfaces and thin films
subject: 620

description: The electronic properties of NdGaO3/SrTiO3, LaGaO3/SrTiO3, and LaAlO3/SrTiO3 interfaces, all showing an insulator-to-metal transition as a function of the overlayer-thickness, are addressed in a comparative study based on x-ray absorption, x-ray photoemission and resonant photoemission spectroscopy. The nature of the charge carriers, their concentration and spatial distribution as well as the interface band alignments and the overall interface band diagrams are studied and quantitatively evaluated. The behavior of the three analyzed heterostructures is found to be remarkably similar. The valence band edge of all the three overlayers aligns to that of bulk SrTiO3. The near-interface SrTiO3 layer is affected, at increasing overlayer thickness, by the building-up of a confining potential. This potential bends both the valence and the conduction band downwards. The latter one crossing the Fermi energy in the proximity of the interface and determines the formation of an interfacial band offset growing as a function of thickness. Quite remarkably, but in agreement with previous reports for LaAlO3/SrTiO3, no electric field is detected inside any of the polar overlayers. The essential phenomenology emerging from our findings is discussed on the base of different alternative scenarios regarding the origin of interface carriers and their interaction with an intense photon beam.
Smooth Quantum Dynamics of Mixmaster Universe
Creators: name: Bergeron, Hervé
name: Czuchry, Ewa
name: Gazeau, Jean Pierre
name: Małkiewicz, Przemysław
name: Piechocki, Włodzimierz
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a quantum version of the vacuum Bianchi IX model by implementing affine coherent state quantization combined with a Born-Oppenheimer-like adiabatic approximation. The analytical treatment is carried out on both quantum and semiclassical levels. The resolution of the classical singularity occurs by means of a repulsive potential generated by our quantization procedure. The quantization of the oscillatory degrees of freedom produces a radiation energy density term in the semiclassical constraint equation. The Friedmann-like lowest energy eigenstates of the system are found to be dynamically stable.
description: 2 figures
INNOVATIVE TEACHING METHODS AND LEARNING PROGRAMS
Creators: name: Ibragimova, Shakhlo
Publisher: name: Zenodo
Year: 2024

description: The rapid evolution of technology and an increasingly diverse student population necessitate innovative teaching methods and learning programs in educational settings. This paper explores various innovative teaching strategies, evaluates their effectiveness, and discusses their implications for student engagement, retention, and achievement. The study employs qualitative and quantitative research methods through participant observations and surveys among educators and students. Results indicate that innovative teaching approaches, including flipped classrooms, project-based learning, and the integration of technology, significantly enhance the educational experience. This research underscores the importance of adapting teaching methods to meet the needs of contemporary learners.
Weak Quasielastic Production of Hyperons and Threshold Production of Two Pions
Creators: name: Singh, S. K.
name: Athar, M. Sajjad
name: Alam, M. Rafi
name: Chauhan, Shikha
name: Hernández, E.
name: Nieves, J.
name: Valverde, M.
name: Vacas, M. J. Vicente
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have studied quasielastic charged current hyperon production induced by $\barν_μ$ on free nucleon and the nucleons bound inside the nucleus and the results are presented for several nuclear targets like $^{40}Ar$, $^{56}Fe$ and $^{208}Pb$. The hyperon-nucleon transition form factors are determined from neutrino-nucleon scattering and semileptonic decays of neutron and hyperons using SU(3) symmetry. The nuclear medium effects(NME) due to Fermi motion and final state interaction(FSI) effect due to hyperon-nucleon scattering have been taken into account. Also we have studied two pion production at threshold induced by neutrinos off nucleon targets. The contribution of nucleon, pion, and contact terms are calculated using Lagrangian given by nonlinear $σ$ model. The contribution of the Roper resonance has also been taken into account. The numerical results for the cross sections are presented and compared with the experimental results from ANL and BNL.
description: To appear in AIP Conf. Proc. of Workshop CETUP*14, 13 Pages, 14 Figures
title: Vibration Mitigation Based on Nonlinear Absorbers
Creators: name: Stephan, Cyrille
name: Pennisi, Giuseppe
name: Michon, Guilhem
Publisher: name: ONERA
Year: 2018
Subjects: NONLINEAR ENERGY SINK
ABSORBER
MITIGATION

description: The design of vibration absorbers is a challenging task for complex real-life structures. Although several technological solutions have now reached maturity, a need for better efficiency in terms of added mass, roadband frequency range and level of reduction requires the study of new ideas and concepts coming from nonlinear dynamics. In this paper an introduction to a class of absorbers called Nonlinear Energy Sinks (NES) is proposed to highlight their potential for vibration mitigation. After a reminder of the different categories of vibration control, some principles of NES and their relationship with linear absorbers are presented. Two experimental NES prototypes are studied and the results have shown interesting capacities for vibration mitigation.
description: AerospaceLab Journal, Issue 14, September 2018; ISSN: 2107-6596
Engajamento e motivação no trabalho: um estudo com os docentes do Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais - IFNMG -Engagement and motivation at work: a study with the professors of the Federal Institute of Education, Science and Technology of the North of Minas Gerais – IFNMG
Creators: name: ROCHA DANTAS, FELIPE
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 350503
subject: Human resources management

description: A gestão de pessoas deve atuar como um componente estratégico visando a utilização planejada de abordagens próprias aos colaboradores da instituição com a finalidade de implementação e junção das estratégias da organização. É a busca pela retenção, desenvolvimento, engajamento e motivação dos funcionários para que satisfaçam as suas necessidades como seres humanos e proporcionem assim a satisfação das necessidades da organização e dos clientes. Na presente pesquisa, considerou-se que uma ação vinculada à perspectiva de gestão de pessoas promoveria a satisfação das necessidades dos funcionários fazendo com que eles se mostrassem mais engajados e motivados no trabalho. Neste caso, o entendimento foi de que, a partir do momento em que a instituição fornece o meio para que o colaborador se qualifique, ele se sentirá mais motivado e engajado. Nessa perspectiva, o objetivo central dessa dissertação consistiu em verificar se os docentes do Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais (IFNMG) sentiam-se motivados e engajados após a oportunidade de afastamento para qualificação, oferecida pelo órgão, e o retorno do servidor às suas atividades. Para que essa situação fosse verificada, procedeu-se o estudo das teorias de engajamento no trabalho propostas por Kahn (1990) e Schaufeli et al. (2002), e o estudo das teorias a respeito da motivação no trabalho propostas por Maslow (Teoria da Hierarquia das Necessidades), Alderfer (Teoria ERG), Vroom (Teoria da Expectativa), McClelland (Teoria das Necessidades), Adams (Teoria da Equidade), Herzberg (Teoria dos Dois Fatores), Locke e Latham (Teoria da Fixação de Metas). O estudo foi feito em uma abordagem qualitativa, sendo do tipo exploratório e utilizando como formas de investigação a pesquisa de campo, bibliográfica e o estudo de caso. Os dados foram coletados por meio de análise documental, pesquisa bibliográfica e entrevistas com os docentes da instituição. Os resultados indicaram que os professores do IFNMG que se afastaram para mestrado ou doutorado, beneficiados pela ação do órgão, sentem-se mais engajados e motivados no trabalho após o retorno às suas atividades. Indicaram ainda que a obtenção do título acadêmico é essencial tanto para vida pessoal quanto profissional dos docentes, e que o afastamento para qualificação é um fator diferencial e está atrelado à questão da motivação no trabalho.
DESIGN AND FABRICATION OF SMART SERS SUBSTRATES FOR FORENSIC SCIENCE APPLICATIONS
Creators: name: Simas, Maria Vitoria
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 340199
subject: Analytical chemistry not elsewhere classified

description: This thesis highlights the use and significance of surface enhanced Raman spectroscopy (SERS) for forensic applications. Two unique SERS substrates are developed for successful (1) forensic toxicological drug detection in human patient plasma and (2) trace explosive detection.
Temporal characterization of individual harmonics of an attosecond pulse train by THz streaking
Creators: name: Ardana-Lamas, F.
name: Erny, C.
name: Stepanov, A.
name: Gorgisyan, I.
name: Juranic, P.
name: Abela, R.
name: Hauri, C. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the global temporal pulse characteristics of individual harmonics in an attosecond pulse train by means of photo-electron streaking in a strong low-frequency transient. The scheme allows direct retrieval of pulse durations and first order chirp of individual harmonics without the need of temporal scanning. The measurements were performed using an intense THz field generated by tilted phase front technique in LiNbO_3 . Pulse properties for harmonics of order 23, 25 and 27 show that the individual pulse durations and linear chirp are decreasing by the harmonic order.
title: A Review of Industrial Aeroelasticity Practices at Dassault Aviation for Military Aircraft and Business Jets
Creators: name: Garrigues, Eric
Publisher: name: ONERA
Year: 2018
Subjects: STATIC AND DYNAMIC AEROELASTICITY
NON-LINEAR AEROELASTICITY
UNSTEADY AERODYNAMIC
FLUTTER, LOADS COMPUTATION
AERO-SERVO-ELASTICITY
INDUSTRIAL PRACTICES

description: Aircraft structure design is a complex industrial process that requires multidisciplinary analyzes and considerations in fields as diverse as aerodynamics, structure, materials and systems, as well as the right compromise between the constraints imposed by these different fields, in order to meet the overall performances required for aircraft. In the field of business jets and military aircraft, given the research into ever more efficient aerodynamic formulas, the constant desire to design \"as light as possible\", and the increase in fuselage sizes, aircraft flexibility has increased considerably over the last few decades. This has required the consideration of increasingly complex aeroelastic coupling phenomena that are present in the flight envelope from the very first phases in aircraft development. The challenge goes far beyond the domain of aerostructural performance alone, since aeroelasticity can also have a significant impact on related domains, such as aircraft performances, handling qualities, or system design. It has merely reinforced the potentially major impacts of aeroelasticity on the risks, costs and deadlines for new aircraft programs: aeroelasticity is now seen as one of the main disciplines in design, and as one of the \"critical\" processes in the aircraft development logic. This highly-challenging context has been the source of major and constant modifications in the field of aeroelasticity since the 1990s at Dassault Aviation. Today, this trend continues, and aeroelasticity will have to tackle a series of entirely new challenges and needs, and continue to reinvent itself at the same pace if it is to avoid hampering innovation and future technological breakthroughs. In this perspective, this article gives an overview of the current best industrial practices in terms of aeroelasticity in the military aircraft and business jet domains at Dassault Aviation. The main aspects of this challenging and exciting field are covered: the numerical methods and tools, the experimental validation process, the aircraft program expectations and aspects relating to human organization. It discusses the principles and guidelines rather than details about the basic equations and methods. The last part presents the future industrial challenges in the field of aeroelasticity for Dassault Aviation.
description: AerospaceLab Journal, Issue 14, September 2018; ISSN: 2107-6596
Η θρησκευτική πολιτική της Δυναστείας του Αμορίου
Creators: name: Μαλικιώση, Αρετή-Παρασκευή Ιακώβου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Δυναστεία Αμορίου
Εικονομαχία
Θρησκευτική πολιτική
Amorian Dynasty
Iconoclasm
Religious policy

description: Αντικείμενο της παρούσας διπλωματικής εργασίας αποτελεί η Δυναστεία του Αμορίου ή Φρυγική Δυναστεία (820-867) και συγκεκριμένα η πολιτική που ακολούθησαν οι αυτοκράτορες της συγκεκριμένης δυναστείας απέναντι στα θρησκευτικά ζητήματα που προέκυψαν κατά τη διάρκεια των πέντε δεκαετιών που βρέθηκε στην κεφαλή του Βυζαντινού Κράτους. Το κυρίως θέμα της εργασίας διαρθρώνεται σε κεφάλαια που αντιστοιχούν στη βασιλεία του εκάστοτε αυτοκράτορα. Παρουσιάζονται τα γεγονότα που σχετίζονται με θεολογικά και εκκλησιαστικά ζητήματα και οι αντίστοιχες αντιδράσεις του κράτους και της Εκκλησίας σε αυτά. Επιχειρείται να φωτιστούν τα κίνητρα και οι επιδιώξεις που υπαγόρευσαν τις κινήσεις των εμπλεκομένων μερών σε κάθε κρίσιμο ζήτημα, αλλά ταυτόχρονα και στοιχεία της προσωπικότητάς τους. Παρόλο που το αντικείμενο της παρούσας έρευνας είναι ιστορικής φύσης, θεωρήθηκε αναγκαία η προσθήκη ενός κεφαλαίου που αφορά σε όψεις του υλικού πολιτισμού της συγκεκριμένης περιόδου που συνδέονται άμεσα με πολιτικές και κυρίως θρησκευτικές εξελίξεις.
description: The subject of this thesis is the Amorian or Frygian Dynasty (820-867) and in particular the policy implemented by the emperors of the aforesaid dynasty on the religious matters that emerged during the five decades they ruled the Byzantine State. The main topic is arranged in chapters that correspond to the reign of each emperor. The facts associated with religious and ecclesiastical affairs are presented in detail, followed by the corresponding reactions of the Church and the State. The aim was to shed light to the motives and the goals of the implicated parts, but also to bring forth their personalities. Although the main subject of this thesis is historical in nature, it was deemed necessary to add a chapter concerning aspects of the material culture of that period that are linked directly to political and religious developments.
description: ΔΙΙΔΡΥΜΑΤΙΚΟ ΠΡΟΓΡΑΜΜΑ ΜΕΤΑΠΤΥΧΙΑΚΩΝ ΣΠΟΥΔΩΝ:«ΕΛΛΑΔΑ: ΕΚΚΛΗΣΙΑΣΤΙΚΗ ΙΣΤΟΡΙΑ ΚΑΙ ΠΟΛΙΤΙΣΜΟΣ», Τμήμα Κοινωνικής Θεολογίας και Χριστιανικού Πολιτισμού (Επισπεύδον Τμήμα) του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης & Τμήμα Κοινωνικής Θεολογίας και Θρησκειολογίας του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών
Characterizing femoral structure of the Ts66Yah mouse model of Down syndrome
Creators: name: Sloan, Kourtney N
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 310503
subject: Developmental genetics (incl. sex determination)
classificationCode: 310902
subject: Animal cell and molecular biology

description: Down syndrome (DS) is caused by the partial or complete trisomy of human chromosome 21 (Hsa21) and can result in skeletal deficits, including lower bone mineral density (BMD) and increased risk of fracture and osteoporosis or osteopenia earlier than the general population. Mouse models of DS have been developed to understand the genetic mechanisms resulting in these phenotypes, but models differ due to the complex genetic nature of DS and differing genome structures between humans and mice. Ts65Dn mice have been a popular model of DS as they contain ~50% of Hsa21 orthologous genes on a freely segregating minichromosome, but there is speculation that the phenotypes are exaggerated by non-Hsa21 orthologous trisomic genes also present. To address this issue, the Ts66Yah mouse model was developed to remove the non-Hsa21 orthologous trisomic genes. In this study, male and female Ts66Yah mouse femurs were evaluated during bone accrual and peak bone mass to investigate structural differences using micro-computed tomography. Additionally, the role of trisomic Dyrk1a, a Hsa21 gene previously linked to bone deficits in Ts65Dn mice, was evaluated through genetic and pharmacological means in Ts66Yah femurs at postnatal day 36. Ts66Yah mice were found to have little or no trabecular deficits at any age evaluated, but sex-dependent cortical deficits were present at all ages investigated. Reducing Dyrk1a copy number in Ts66Yah mice significantly improved cortical deficits but did not return cortical bone to euploid levels. Pharmacological treatment with DYRK1A inhibitor L21 was confounded by multiple variables, making it difficult to draw conclusions about DYRK1A inhibition in this manner. Overall, these results indicate trabecular deficits associated with Ts65Dn mice may be due to the non-Hsa21 orthologous trisomic genes, and more Hsa21 orthologous trisomic genes are necessary to produce trabecular deficits in DS model mice. As more mouse models of DS are developed, multiple models need to be assessed to accurately define DS-associated phenotypes and test potential treatments.
Utilização de pigmento feito a partir de argila  para tintas à base de cal
Creators: name: Mayra Martins Silva
name: Thais Alessandra Bastos Caminha Sanjad
Publisher: name: Zenodo
Year: 2024

description: No campo da conservação e do restauro arquitetônico na região Norte do Brasil, são utilizados pigmentos provenientes de outras regiões brasileiras ou mesmo de outros países, que muitas vezes encarecem processos restaurativos. Por outro lado, tem-se, na Amazônia brasileira, especialmente no Pará, uma abundância de matérias-primas para utilização como material que confere cor. Além disso, são referenciados em fontes histórico-documentais da literatura materiais próprios da região amazônica, especialmente argilas, como pigmentos minerais utilizados nas caiações de edifícios antigos. Neste sentido, o trabalho tem como objetivo avaliar a utilização de um pigmento produzido a partir de argila da região amazônica em tintas à base de cal, para aplicação em revestimentos tradicionais de edifícios históricos. O pigmento foi produzido a partir de argila vermelha retirada de depósitos naturais situados em Icoaraci – PA; queima a 1000ºC; moagem; e peneiramento, gerando um pó cerâmico. O pigmento de pó cerâmico foi incorporado em formulações de tintas à base de cal, cujo método se baseou na literatura, tendo como referência o modo de preparo de Kanan (1996), Uemoto (1991) para caiações e variações das receitas relatadas em documentos escritos dos viajantes setecentistas Martius e Spix (1819) e de Daniel (2004) sobre a produção e aplicação de tintas na Amazônia, com adaptações a partir dos estudos de Silva et. al (2017). As tintas foram aplicadas em substratos de argamassa de cal e o pigmento incorporado nas tintas foi avaliado quanto à cor e à adesão superficial. Os resultados evidenciaram que o pigmento de pó cerâmico tem grande potencial enquanto solução tecnológica sustentável à salvaguarda do patrimônio cultural, especificamente com relação à revestimentos à base de cal.
Targeting the Conformal Window: Scalars on the Lattice
Creators: name: Weinberg, Evan
name: Brower, Rich
name: Hasenfratz, Anna
name: Rebbi, Claudio
name: Witzel, Oliver
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The light Higgs boson of the Standard Model could arise as the consequence of the weakly broken conformal symmetry in a strongly interacting gauge theory. Here we present a novel idea to study the transition from conformal to confining behavior using an SU(3) gauge theory with four light and eight heavy flavors. This system interpolates between the 12-flavor conformal and the 4 flavor chirally broken theory as the mass of the heavy flavors are varied. We show first results on our determination of the iso-singlet 0++ state.
description: 6 pages, 4 figures, contributed talk to the XXVI IUPAP Conference on Computational Physics (CCP2014), August 11-14 2014, Boston, Massachusetts, USA
title: Study of Morphing Winglet Concepts Aimed at Improving Load Control and the Aeroelastic Behavior of Civil Transport Aircraft
Creators: name: Liauzun, Cedric
name: Le Bihan, Dominique
name: David, Jean-Michel
name: Joly, Didier
name: Paluch, Bernard
Publisher: name: ONERA
Year: 2018
Subjects: MORPHING
WINGLET
LOAD CONTROL
AEROELASTICITY

description: Morphing is today widely studied in order to improve aircraft performance and thereby decrease their environmental footprint. This paper deals with the preliminary study of several morphing winglet concepts aimed at improving load control and aeroelastic behavior. The first step consisted in building and validating low-CPU-time-consuming but accurate aeroelastic models able to take into account aerodynamics, structural dynamics and flight mechanics, in order to handle free flexible aircraft. Aeroelastic state-space models have therefore been built from a structural modal reduction and from a rational function approximation of the aerodynamic forces based on the Roger formulation. They have been validated through comparisons with high-fidelity fluid-structure (CFD-CSM) coupling simulations. The flight mechanics has been taken into account by coupling these models with the AVL software. The second step consisted in designing a realistic reference wing equipped with a conventional winglet. Then, four morphing winglet concepts were assessed: a flapping winglet, a winglet whose deformation in torsion is controllable, a winglet able to rotate around an axis along its span and a winglet equipped with a trailing edge flap. The latter concept was found to be the most promising in terms of load control, in particular when used in conjunction with the aileron. Finally, a technological study was performed in order to ensure the feasibility of the concepts. This study was pursued up to the drawing phase, but stopped before a demonstrator was manufactured. Nevertheless, it demonstrated the feasibility of a winglet equipped with a trailing edge flap, at both the demonstrator and real aircraft scales.
description: AerospaceLab Journal, Issue 14, September 2018; ISSN: 2107-6596
MACHINE LEARNING FACILITATED QUANTUM MECHANIC/MOLECULAR MECHANIC FREE ENERGY SIMULATIONS
Creators: name: Snyder, Ryan Michael
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 340701
subject: Computational chemistry

description: Bridging the accuracy of ab initio (AI) QM/MM with the efficiency of semi-empirical
 (SE) QM/MM methods has long been a goal in computational chemistry. This dissertation
 presents four ∆-Machine learning schemes aimed at achieving this objective. Firstly, the in-
 corporation of negative force observations into the Gaussian process regression (GPR) model,
 resulting in GPR with derivative observations, demonstrates the remarkable capability to
 attain high-quality potential energy surfaces, accurate Cartesian force descriptions, and reli-
 able free energy profiles using a training set of just 80 points. Secondly, the adaptation of the
 sparse streaming GPR algorithm showcases the potential of memory retention from previous
 phasespace, enabling energy-only models to converge using simple descriptors while faith-
 fully reproducing high-quality potential energy surfaces and accurate free energy profiles.
 Thirdly, the utilization of GPR with atomic environmental vectors as input features proves
 effective in enhancing both potential energy surface and free energy description. Further-
 more, incorporating derivative information on solute atoms further improves the accuracy
 of force predictions on molecular mechanical (MM) atoms, addressing discrepancies arising
 from QM/MM interaction energies between the target and base levels of theory. Finally, a
 comprehensive comparison of three distinct GPR schemes, namely GAP, GPR with an aver-
 age kernel, and GPR with a system-specific sum kernel, is conducted to evaluate the impact
 of permutational invariance and atomistic learning on the model’s quality. Additionally, this
 dissertation introduces the adaptation of the GAP method to be compatible with the sparse
 variational Gaussian processes scheme and the streaming sparse GPR scheme, enhancing
 their efficiency and applicability. Through these four ∆-Machine learning schemes, this dis-
 sertation makes significant contributions to the field of computational chemistry, advancing
 the quest for accurate potential energy surfaces, reliable force descriptions, and informative
 free energy profiles in QM/MM simulations.
Exploring brain function from anatomical connectivity
Creators: name: Zamora-López, Gorka
name: Zhou, Changsong
name: Kurths, Jürgen
Publisher: name: Lausanne : Frontiers Media
Year: 2011
Subjects: subject: Hierarchical networks
subject: cortical networks
subject: brain connectivity
subject: integration
subject: segregation
subject: connectome
subject: cortical hubs
subject: 530

description: The intrinsic relationship between the architecture of the brain and the range of sensory and behavioral phenomena it produces is a relevant question in neuroscience. Here, we review recent knowledge gained on the architecture of the anatomical connectivity by means of complex network analysis. It has been found that cortico-cortical networks display a few prominent characteristics: (i) modular organization, (ii) abundant alternative processing paths, and (iii) the presence of highly connected hubs. Additionally, we present a novel classification of cortical areas of the cat according to the role they play in multisensory connectivity. All these properties represent an ideal anatomical substrate supporting rich dynamical behaviors, facilitating the capacity of the brain to process sensory information of different modalities segregated and to integrate them toward a comprehensive perception of the real world. The results here exposed are mainly based on anatomical data of cats’ brain, but further observations suggest that, from worms to humans, the nervous system of all animals might share these fundamental principles of organization.
title: Highly-Nonlinear and Transient Structural Dynamics: a Review about Crashworthiness of Composite Aeronautical Structures
Creators: name: Deletombe, Eric
name: Delsart, David
Publisher: name: ONERA
Year: 2018
Subjects: COMMERCIAL AIRCRAFT
CRASH SAFETY
CRASHWORTHINESS
COMPOSITE FUSELAGE
CRASH TESTS
NUMERICAL SIMULATIONS
FINITE ELEMENT METHOD

description: This paper is a bibliographic review dealing with composite aircraft and rotorcraft crashworthiness. The paper focuses on structural aspects of large composite aircraft or rotorcraft parts (fuselage parts, barrels or larger parts). Material topics, such as the experimental characterization and numerical modelling of the dynamic behavior of composite materials, of composite joints (details) and of energyabsorbing components (elementary parts) are mentioned but not discussed in detail. More information about this topic can be found, for instance, in another bibliographic review. The first section of the paper deals with work performed in various labs since the early \'90s. The second section describes the global strategy of the French Aerospace Lab in the matter of studying composite aircraft or rotorcraft crashworthiness over the same period, following a quite different strategy. Lessons learnt from all of these works are discussed in detail, which can be derived into best practices for young engineers or researchers working in this field. Indeed, the complexity of the composite materials, and hence the structure behavior under crash conditions, is so great (due to potentially very versatile rupture behaviors) that great care must be taken when studying their crash response. As a conclusion of the review paper, the need for a numerical/experimental building-block approach up to the barrel level is clearly evidenced, which should not be done without wellassessed VV (verify and validate) strategies for the virtual part of the process.
description: AerospaceLab Journal, Issue 14, September 2018; ISSN: 2107-6596
MatrisomeDB: the ECM-protein knowledge database
Creators: name: Shao, Xinhao
name: Taha, Isra N
name: Clauser, Karl R
name: Gao, Yu
name: Naba, Alexandra
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: The extracellular matrix (ECM) is a complex and dynamic meshwork of cross-linked proteins that supports cell polarization and functions and tissue organization and homeostasis. Over the past few decades, mass-spectrometry-based proteomics has emerged as the method of choice to characterize the composition of the ECM of normal and diseased tissues. Here, we present a new release of MatrisomeDB, a searchable collection of curated proteomic data from 17 studies on the ECM of 15 different normal tissue types, six cancer types (different grades of breast cancers, colorectal cancer, melanoma, and insulinoma) and other diseases including vascular defects and lung and liver fibroses. MatrisomeDB (http://www.pepchem.org/matrisomedb) was built by retrieving raw mass spectrometry data files and reprocessing them using the same search parameters and criteria to allow for a more direct comparison between the different studies. The present release of MatrisomeDB includes 847 human and 791 mouse ECM proteoforms and over 350 000 human and 600 000 mouse ECM-derived peptide-to-spectrum matches. For each query, a hierarchically-clustered tissue distribution map, a peptide coverage map, and a list of post-translational modifications identified, are generated. MatrisomeDB is the most complete collection of ECM proteomic data to date and allows the building of a comprehensive ECM atlas.
The electron screening puzzle and nuclear clustering
Creators: name: Spitaleri, C.
name: Bertulani, C. A.
name: Fortunato, L.
name: Vitturi, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Accurate measurements of nuclear reactions of astrophysical interest within, or close to, the Gamow peak, show evidence of an unexpected effect attributed to the presence of atomic electrons in the target. The experiments need to include an effective "screening" potential to explain the enhancement of the cross sections at the lowest measurable energies. Despite various theoretical studies conducted over the past 20 years and numerous experimental measurements, a theory has not yet been found that can explain the cause of the exceedingly high values of the screening potential needed to explain the data. In this letter we show that instead of an atomic physics solution of the "electron screening puzzle", the reason for the large screening potential values is in fact due to clusterization effects in nuclear reactions, in particular for reaction involving light nuclei.
description: 6 pages, 2 figures, accepted for publication in Physics Letters B
title: EES 2015 - Multidisciplinary Symposium on ENERGY, EFFICIENCY AND SUSTAINABILITY
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Kassel
Year: 2015
Subjects: subject: 520
subject: Astronomie
subject: Kartographie

description: EES 2015 Symposium was held at the Technische Universität Berlin during July 31st and August 1st, 2015 at the Geodätenstand, kindly lent to the event by the Institut für Geodäsie und Geoinformationstechnik of TU-Berlin. The building was constructed in 1953, designed for scientific research purposes as well as for teaching and is now declared as a listed monument. It is located in the main building of the University in the Straße des 17. Juni 135, 10623 Berlin.
Carbonate-based Janus micromotors moving in ultra-light acidic environment generated by HeLa cells in situ
Creators: name: Guix, Maria
name: Meyer, Anne K.
name: Koch, Britta
name: Schmidt, Oliver G.
Publisher: name: London : Nature Publishing Group
Year: 2016
Subjects: subject: Cancer
subject: Materials science
subject: calcium carbonate
subject: chemistry
subject: conditioned medium
subject: drug delivery system
subject: HeLa cell line
subject: human
subject: motion
subject: pH
subject: tumor microenvironment
subject: 620

description: Novel approaches to develop naturally-induced drug delivery in tumor environments in a deterministic and controlled manner have become of growing interest in recent years. Different polymeric-based microstructures and other biocompatible substances have been studied taking advantage of lactic acidosis phenomena in tumor cells, which decrease the tumor extracellular pH down to 6.8. Micromotors have recently demonstrated a high performance in living systems, revealing autonomous movement in the acidic environment of the stomach or moving inside living cells by using acoustic waves, opening the doors for implementation of such smart microengines into living entities. The need to develop biocompatible motors which are driven by natural fuel sources inherently created in biological systems has thus become of crucial importance. As a proof of principle, we here demonstrate calcium carbonate Janus particles moving in extremely light acidic environments (pH 6.5), whose motion is induced in conditioned acidic medium generated by HeLa cells in situ. Our system not only obviates the need for an external fuel, but also presents a selective activation of the micromotors which promotes their motion and consequent dissolution in presence of a quickly propagating cell source (i.e. tumor cells), therefore inspiring new micromotor configurations for potential drug delivery systems.