cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring the chemical space around austdiol by semi-synthesis
Creators: name: Valter, Stefan
Publisher: name: Macquarie University
Year: 2023
Subjects: Other education not elsewhere classified

description: Natural products provide structurally diverse chemical scaffolds with applications in pharmaceuticals and agrichemicals. However, many natural products do not possess PK/PD properties suitable for direct application as chemotherapeutic agent. When isolated material is sufficient, semi-synthetic modification of a natural product scaffolds is a useful technique for exploring chemical space around a pharmacophore to improve bioactivity and druggability. In this thesis, chemical derivatisation was used to expand the chemical space around austdiol, a toxic azaphilone first isolated in 1973 from the fungus Aspergillus ustus. A small semi-synthetic library of fourteen austdiol analogues was synthesised, focusing primarily on degradation, reduction, oxidation and amination reactions. Their structures were determined by HRESIMS and spectroscopic methods, including NMR and UV-vis. These derivatives were screened for antibacterial, antifungal, and cell cytotoxic activities. Finally, a 2,4-dinitrophenylhydrazone derivative of austdiol was explored as a chiral derivatisation agent to assist in the resolution of L and D enantiomers of amino acids commonly found in natural products, by UV-vis detection in reversed-phase liquid chromatography.
Quantum Monte Carlo simulations of thermodynamic properties of attractive SU($3$) Dirac fermions
Creators: name: Li, Xiang
name: Xu, Han
name: Wang, Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We employ the determinant quantum Monte Carlo method to study the finite-temperature properties of the half-filled attractive SU($3$) Hubbard model on a honeycomb lattice. We calculate the phase diagram in which the phase boundary separates the disordered phase and the charge-density-wave (CDW) phase and the transition temperature $T_{\text{tr}}(|U|)$ varies non-monotonically with attractive Hubbard interaction $|U|$. As the Hubbard $|U|$ increases at constant temperature $T<\text{max}(T_{\text{tr}}(|U|))$, the system first undergoes a transition from thermal Dirac semimetal phase to CDW phase, and eventually the CDW state is thermally melted at a strong Hubbard $|U|$ where the system enters a trion liquid phase. In between the two transition points the non-monotonic $|U|$ dependence of CDW order strength is strikingly different from the zero-temperature monotonic behavior. In the trion CDW state where off-site trions arise from quantum fluctuations (a fermion inside an on-site trion hops to a nearest-neighbor site), the simulated triple occupancy at constant Hubbard $|U|$ surprisingly increases with temperature, implying that the formation of off-site trions is suppressed by the thermal delocalization of on-site trions. We have also calculated the entropy-temperature relations for various attractive Hubbrad interactions, which exhibit the prominent characteristic of the Pomeranchuk effect. Our work has revealed that the formation of on-site and off-site trions has significant consequences for thermodynamic properties of SU(3) Dirac fermions.
description: 8 pages, 10 figures
Push button reproduction attempt of a research claim from Shing-Yi Wang, (2013), in American Economic Journal
Creators: name: Tutor, Melba
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: The hypothesis [tested is] that the death of a father-in-law may remove the nepotistic component of wages based on the relationship with the father-in-law, and reduce the level of men’s wages to the market value. This reflects the following statement from the paper's abstract: "The estimates suggest that the loss of the father-in-law translates into a decrease in a man’s earnings of 7 percent." [Tested with] regressions which include a cubic in age, education, province-year indicators, individual fixed effects, and a constant term. The dependent variable is the logarithm of earnings. In the SLCC (dataset), the corresponding estimates of the impact of the death of the father-in-law is a decline in wages of 7 percent. From Table 2, the coefficient of “PostFILdeath” on the logarithm earnings = -0.069, significant at the 5 percent level. The focal test in the original paper is: The coefficient of “PostFILdeath” on the logarithm earnings = -0.069, significant at the 5 percent level.
Material Culture from the Middle Babylonain Period (McMiB)
Creators: name: Arroyo Cuadra, Sara
Publisher: name: Zenodo
Year: 2023
Subjects: digital humanities
Middle-Babylonian period
cultural heritage
archaeology
3D reconstruction

description: This poster aims to show the main objectives to be developed within the project “Material culture from Middle Babylonian period (McMiB): digitalization and democratization of the access to the cultural heritage of the Ancient Near East”, funded thanks to a “María Zambrano” Postdoctoral Fellowship.
A Li-Yau inequality for the 1-dimensional Willmore energy
Creators: name: Müller, Marius
name: Rupp, Fabian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53A04 (primary), 49Q10, 53E40 (secondary)

description: By the classical Li-Yau inequality, an immersion of a closed surface in $\mathbb{R}^n$ with Willmore energy below $8π$ has to be embedded. We discuss analogous results for curves in $\mathbb{R}^2$, involving Euler's elastic energy and other possible curvature functionals. Additionally, we provide applications to associated gradient flows.
description: Accepted version
Phase 1 safety and tolerability study of BMP-7 in symptomatic knee osteoarthritis
Creators: name: Jonas, Beth L
Publisher: name: BioMed Central Ltd
Year: 2010

description: Abstract Background There are no proven therapies that modify the structural changes associated with osteoarthritis (OA). Preclinical data suggests that intra-articular recombinant human BMP-7 (bone morphogenetic protein-7) has reparative effects on cartilage, as well as on symptoms of joint pain. The objective of this study was to determine the safety and tolerability as well as dose-limiting toxicity and maximal tolerated dose of intra-articular BMP-7. The secondary objectives were to determine the effect on symptomatic responses through 24 weeks. Methods This was a Phase 1, double-blind, randomized, multi-center, placebo-controlled, single-dose escalation safety study consisting of 4 dosing cohorts in participants with knee OA. Each cohort was to consist of 8 treated participants, with treatment allocation in a 3:1 active (intra-articular BMP-7) to placebo ratio. Eligible participants were persons with symptomatic radiographic knee OA over the age of 40. The primary objective of this study was to determine the safety and tolerability of BMP-7 including laboratory assessments, immunogenicity data and radiographic assessments. Secondary objectives were to determine the proportion of participants with a 20%, 50%, and 70% improvement in the WOMAC pain and function subscales at 4, 8, 12, and 24 weeks. Other secondary outcomes included the change from baseline to 4, 8, 12, and 24 weeks for the OARSI responder criteria. Results The mean age of participants was 60 years and 73% were female. All 33 participants who were enrolled completed the study and most adverse events were mild or moderate and were similar in placebo and BMP-7 groups. The 1 mg BMP-7 group showed a higher frequency of injection site pain and there was no ectopic bone formation seen on plain x-rays. By week 12, most participants in both the BMP-7 and placebo groups experienced a 20% improvement in pain and overall the BMP-7 group was similar to placebo with regard to this measurement. In the participants who received 0.1 mg and 0.3 mg BMP-7, there was a trend toward greater symptomatic improvement than placebo. The other secondary endpoints showed similar trends including the OARSI responder criteria for which the BMP-7 groups had more responders than placebo. Conclusions There was no dose limiting toxicity identified in this study. The suggestion of a symptom response, together with the lack of dose limiting toxicity provide further support for the continued development of this product for the treatment of osteoarthritis.
Investing in the territory: conditions, criticalities, resources, opportunities
Creators: name: De Albertis, Claudio
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: In order for the building sector in Italy to overcome the crisis, general conditions concerning the performance of the Italian economic system must occur and the planned public works projects and announced housing plans must be implemented. The new building cycle will bring with it a different market than the traditional one, hence the need to identify some strategic areas that refer to the current models of supply and demand, in particular the demand for housing which continues to grow and that relative to the transformation of the existing heritage. In the coming years, the challenge for the building sector will be to embark on a process of highly significant innovation, guided by the dynamics of globalization, technological evolution as well as energy and environmental issues.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
title: THE RELATIONSHIP BETWEEN THE TEAM PRODUCTIVITY AND THE FACTORS AFFECTING THE TEAMWORK
title: Статья
titleType: Subtitle
Creators: name: Dudu(YILDIRIM), Duygu
name: ATALAY, Davut
Publisher: name: "Южный Университет (ИУБиП)"
Year: 2018
Subjects: Team
Teamwork
Team Productivity
Motivation

Abstract
Volume growth, capacity estimates, $p$-parabolicity and sharp integrability properties of $p$-harmonic Green functions
Creators: name: Björn, Anders
name: Björn, Jana
name: Lehrbäck, Juha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 31C45, Secondary: 30L99, 31C12, 31C15, 31E05, 35J08, 35J92, 46E36, 49Q20

description: In a complete metric space equipped with a doubling measure supporting a $p$-Poincaré inequality, we prove sharp growth and integrability results for $p$-harmonic Green functions and their minimal $p$-weak upper gradients. We show that these properties are determined by the growth of the underlying measure near the singularity. Corresponding results are obtained also for more general $p$-harmonic functions with poles, as well as for singular solutions of elliptic differential equations in divergence form on weighted $\mathbf{R}^n$ and on manifolds. The proofs are based on a new general capacity estimate for annuli, which implies precise pointwise estimates for $p$-harmonic Green functions. The capacity estimate is valid under considerably milder assumptions than above. We also use it, under these milder assumptions, to characterize singletons of zero capacity and the $p$-parabolicity of the space. This generalizes and improves earlier results that have been important especially in the context of Riemannian manifolds.
A Comparative study of hyperon equations of state in supernova simulations
Creators: name: Char, Prasanta
name: Banik, Sarmistha
name: Bandyopadhyay, Debades
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A comparative study of the $Λ$ hyperon equations of state of Banik, Hempel and Banyopadhyay (BHB) \citep{bhb} and \citet{shen11} (denoted as HShen $Λ$) for core collapse supernova (CCSN) simulations is carried out in this work. The dynamical evolution of a protoneutron star (PNS) into a black hole is investigated in core collapse supernova simulations in the general relativistic one dimensional code using the BHB$Λϕ$ and HShen $Λ$ equation of state (EoS) tables and different progenitor models from Woosley and Heger \citep{Woos}. Radial profiles of the mass fractions of baryons, the density as well as the temperature in the PNS at different moments in time, are compared for both EoS tables. The behaviour of the central density of the PNS with time is demonstrated for those two $Λ$ hyperon EoS tables and compared with their corresponding nuclear EoS tables. It is observed that the black hole formation time is higher in the BHB$Λϕ$ case than in the HShen $Λ$ EoS for the entire set of progenitor models adopted here, because the repulsive $Λ$-$Λ$ interaction makes the BHB$Λϕ$ EoS stiffer. Neutrino emission with the $Λ$ hyperon EoS ceases earlier than that of its nuclear counterpart. The long duration evolution of the shock radius and gravitational mass of the PNS after a successful supernova explosion with enhanced neutrino heating are studied with the BHB$Λϕ$ EoS and $s$20WH07 progenitor model. The PNS is found to remain stable for 4 s and might evolve into a cold neutron star.
description: LaTeX; 25 pages including two tables and 10 figures; to be published in the Astrophysical Journal
The Devinatz-Hopkins Theorem via Algebraic Geometry
Creators: name: Gregoric, Rok
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: In this note, we show how a continuous action of the Morava stabilizer group $\mathbb G_n$ on the Lubin-Tate spectrum $E_n$, satisfying the conclusion $E_n^{h\mathbb G_n}\simeq L_{K(n)} S$ of the Devinatz-Hopkins Theorem, may be obtained by monodromy on the stack of oriented deformations of formal groups in the context of formal spectral algebraic geometry.
description: 17 pages
From Council Housing to Social Housing. The successes and misfortunes of Social Housing policies in Italy
Creators: name: Terranova, Ferdinando
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: The issues dealt with are three: the need for medium – and large – scale territorial planning; the quality of housing; the solutions to guarantee secure flows of financing to launch programmes of public residential housing (ERP). A premise of any ERP programme is the planning and construction of a fast rail network to guarantee mass mobility. Once this premise has been satisfied, it is possible to identify agricultural areas to be expropriated for ERP interventions. This programme is characterised by operating above the municipal level, and it requires a structure that has the administrative powers of an agency. As regards the quality of housing, the following equation has to be dispensed with: public residential housing = ugly building characterised by alienation and anomy. Planners from this century have been called on to rise the challenge. To be certain of obtaining finance for ERP programmes, the old road of contributions at source from workers should be pursued as well as the establishment of a single fund that gathers together all the financing foreseen by laws made over the years and not spent, set aside for ERP.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
Frequency of breast cancer subtypes among African American women in the AMBER consortium
Creators: name: Miller, C. Ryan
name: Perou, Charles
name: Olshan, Andrew
name: Li, Yan
name: Sun, Xuezheng
name: Cohen, Stephanie M
name: Thorne, Leigh B
name: Kirk, Erin L
name: Allott, Emma H
name: O’Connor, Siobhan
name: Bell, Mary Beth
name: Hu, Zhiyuan
name: Troester, Melissa
Publisher: name: BioMed Central
Year: 2018

description: Abstract Background Breast cancer subtype can be classified using standard clinical markers (estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2)), supplemented with additional markers. However, automated biomarker scoring and classification schemes have not been standardized. The aim of this study was to optimize tumor classification using automated methods in order to describe subtype frequency in the African American Breast Cancer Epidemiology and Risk (AMBER) consortium. Methods Using immunohistochemistry (IHC), we quantified the expression of ER, PR, HER2, the proliferation marker Ki67, and two basal-like biomarkers, epidermal growth factor receptor (EGFR) and cytokeratin (CK)5/6, in 1381 invasive breast tumors from African American women. RNA-based (prediction analysis of microarray 50 (PAM50)) subtype, available for 574 (42%) cases, was used to optimize classification. Subtype frequency was calculated, and associations between subtype and tumor characteristics were estimated using logistic regression. Results Relative to ER, PR and HER2 from medical records, central IHC staining and the addition of Ki67 or combined tumor grade improved accuracy for classifying PAM50-based luminal subtypes. Few triple negative cases (< 2%) lacked EGFR and CK5/6 expression, thereby providing little improvement in accuracy for identifying basal-like tumors. Relative to luminal A subtype, all other subtypes had higher combined grade and were larger, and ER-/HER2+ tumors were more often lymph node positive and late stage tumors. The frequency of basal-like tumors was 31%, exceeded only slightly by luminal A tumors (37%). Conclusions Our findings indicate that automated IHC-based classification produces tumor subtype frequencies approximating those from PAM50-based classification and highlight high frequency of basal-like and low frequency of luminal A breast cancer in a large study of African American women.
Architectural technology for environmental design
Creators: name: Schiaffonati, Fabrizio
name: Mussinelli, Elena
name: Gambaro, Matteo
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: The scientific field of «Architectural Technology» has long incorporated the discipline of «Environmental Design», by giving explicit visibility to already present embedded in its foundation. They represented a significant challenge and opened the path to a real restructuring of the Architecture Schools; it is further pursuing the path traced by figures such as Eduardo Vittoria, Marco Zanuso and Pierluigi Spadolini, who pointed out a precise understanding of the habitat, which is not limited to physical and formal aspects, revealing immaterial influences on the project that aim to environmen- tal and social-economical sustainability, preluding environmental governance.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
VIMOS mosaic integral-field spectroscopy of the bulge and disk of the early-type galaxy NGC 4697
Creators: name: Spiniello, C.
name: Napolitano, N. R.
name: Coccato, L.
name: Pota, V.
name: Romanowsky, A. J.
name: Tortora, C.
name: Covone, G.
name: Capaccioli, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an integral field study of the internal structure, kinematics and stellar population of the almost edge-on, intermediate luminosity ($L_ {*}$) elliptical galaxy NGC 4697. We build extended 2-dimensional (2D) maps of the stellar kinematics and line-strengths of the galaxy up to $\sim 0.7 $ effective radii (R$_{eff}$) using a mosaic of 8 VIMOS (VIsible Multi-Objects Spectrograph on the VLT) integral-field unit pointings. We find clear evidence for a rotation-supported structure along the major axis from the 2D kinematical maps, confirming the previous classification of this system as a `fast-rotator'. We study the correlations between the third and fourth Gauss-Hermite moments of the line-of-sight velocity distribution (LOSVD) $h_3$ and $h_4$ with the rotation parameter ($V/σ$), and compare our findings to hydrodynamical simulations. We find remarkable similarities to predictions from gas-rich mergers. Based on photometry, we perform a bulge/disk decomposition and study the stellar population properties of the two components. The bulge and the disk show different stellar populations, with the stars in the bulge being older (age$_{\rm bulge}=13.5^{+1.4}_{-1.4}$ Gyr, age$_{\rm disk}=10.5^{+1.6}_{-2.0}$Gyr) and more metal-poor ($\mathrm{[M/H]_{bulge}} = -0.17^{+0.12}_{-0.1}$, $\mathrm{[M/H]_{disk}}=-0.03^{+0.02}_{-0.1}$). The evidence of a later-formed, more metal-rich disk embedded in an older, more metal-poor bulge, together with the LOSVD structure, supports a mass assembly scenario dominated by gas-rich minor mergers and possibly with a late gas-rich major merger that left a previously rapidly rotating system unchanged. The bulge and the disk do not show signs of different stellar Initial Mass Function slopes, and both match well with a Milky Way-like IMF.
description: Accepted for publication on MNRAS
Coherent Anti-Stokes Raman Scattering Microscopy for Biomedical Applications
Creators: name: Yousif, Huda
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: CARS microscopy
Non-linear imaging

description: Coherent anti-Stokes Raman scattering (CARS) microscopy is considered as a powerful tool for non-invasive chemical imaging of biological samples. CARS microscopy provides an endogenous contrast mechanism that it is sensitive to molecular vibrations. CARS microscopy is recognized as a great imaging system, especially in vivo experiments since it eliminates the need for the contrast agents. In this thesis, CARS microscopy/spectroscopy is built from scratch by employing a single (Ti-Sapphire) laser source generating 65 femtosecond laser pulses centered at 800 nm wavelength. Two closely lying zero dispersion photonic crystal fiber (PCF) is used to generate the supercontinuum for the Stokes beam to generate CARS at 2885 cm-1 to match lipids rich vibrational frequency. XY galvanometers are used for laser raster scanning across the sample. The initial generation of CARS signal was in the forward direction. After guaranteeing a strong CARS signal, images for chemical and biological samples were taken. To achieve a multimodal imaging technique, CARS microscopy imaging system is combined with two- photon excitation fluorescent (TPEF) and second harmonic generation (SHG) imaging techniques, where various information was extracted from the imaged samples. Images with our CARS microscopy show a good resolution and sensitivity. The second part of my work is to reduce the footprint for this setup to make it more suitable for use in clinical applications. For that reason, I integrated a homebuilt endoscope and all fiber femtosecond laser source together to get a fiber based imaging system. Proof of principal for the integrated system is achieved by obtaining a reasonable agreement in accuracy and resolution to those obtained by the endoscope driven by Ti-sapphire laser.
Architectural quality: innovation, technological research and design
Creators: name: Campioli, Andrea
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: Architectural redevelopment and the revival of the construction sector are conditional on the incentivisation and bolstering of innovation processes. Thus the partial declensions that have been attached to these processes over the last few years have seen research and experimentation being tailored to the spectacularisation of shapes or the hidden performance optimisation of materials and components. Genuine improvement in the quality of architecture and its construction in this day and age depends on the abilities of designers to adopt the entire life cycle of buildings as a reference framework and on the willingness of all those working in the construction supply chain to activate virtuous cooperation.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
Racial differences in associations between baseline patterns of radiographic osteoarthritis and multiple definitions of progression of hip osteoarthritis: the Johnston County Osteoarthritis Project
Creators: name: Foley, Bridget
name: Nelson, Amanda E
name: Jordan, Joanne
name: Renner, Jordan B
name: Cleveland, Rebecca J
Publisher: name: BioMed Central
Year: 2015

description: Abstract Background To identify baseline radiographic features that predict hip osteoarthritis (HOA) progression, and to explore differences in these associations by race. Methods Radiographs from the community-based Johnston County OA Project were scored using Kellgren-Lawrence (KL) grade and for presence and location of joint space narrowing (JSN), osteophytes, and subchondral changes. Associations between these features and HOA progression (increase of at least 1 KL grade, interval hip replacement, range of motion [ROM, a reduction of ≥10° in internal rotation], or disability [increase of ≥0.2 in Health Assessment Questionnaire scores], or Any of these) were assessed using logistic regression, adjusting for age, gender, race, hip injury, BMI, education, smoking and follow-up time, accounting for multiple comparisons. Race interactions were assessed and analyses stratified as indicated. Results The sample (n = 1,422) included 40 % men and 26 % African American (AA) participants, with mean age 61 years and BMI 29 kg/m2. The baseline frequency of radiographic hip OA (RHOA) between Caucasians and AAs was similar (23 %), although some radiographic features differed. AAs were more likely to have progression defined by ROM or disability or Any progression; Caucasians were more likely to have RHOA progression. JSN, subchondral sclerosis, and medial osteophytes were associated with increased RHOA progression overall; JSN was associated with disability progression only in AAs, while lateral osteophytes were associated with ROM progression only in Caucasians. Conclusions AAs and Caucasians exhibited differences in the radiographic presentation and progression patterns of HOA, with AAs reporting progressive pain and disability, while Caucasians had more RHOA progression.
title: Συσχέτιση ορυκτολογικής και χημικής σύστασης βιομηχανικών παραπροϊόντων με τις ηλεκτρικές τους ιδιότητες, στο πλαίσιο της αξιοποίησής τους ως δευτερογενείς πρώτες ύλες
Creators: name: Σωτηριου Χρηστος
Publisher: name: Technical University of Crete
Year: 2023

description: Βασικός στόχος της παρούσας διπλωματικής εργασίας είναι η μελέτη των ηλεκτρικών ιδιοτήτων παραπροϊόντων και αποβλήτων της μεταλλευτικής και κατασκευαστικής βιομηχανίας με την εφαρμογή της μεθόδου διηλεκτρικής φασματοσκοπίας. Χρησιμοποιήθηκαν δείγματα σκωρίας, ερυθράς ιλύος, ιπτάμενης τέφρας και ανόργανων υλικών κατεδαφίσεων, τα οποία υποβλήθηκαν σε μία σειρά αναλύσεων, με σκοπό την βέλτιστη κατανόηση της ηλεκτρικής τους συμπεριφοράς και πως αυτή συσχετίζεται με την κοκκομετρία, τη χημική και την ορυκτολογική  σύσταση των υπό μελέτη δειγμάτων.

Πραγματοποιήθηκε λειοτρίβηση των υλικών για την μείωση του μεγέθους των κόκκων και εν συνεχεία κοσκίνιση (ξηρή & υγρή) για τον διαχωρισμό τους σε διάφορα κοκκομετρικά κλάσματα. Η πειραματική διαδικασία συνεχίστηκε με την πραγματοποίηση ποσοτικών και ποιοτικών αναλύσεων, με τη χρήση των τεχνικών της περιθλασιμετρίας ακτινών-Χ (XRD) και της φασματοσκοπίας φθορισμού ακτινών-Χ (XRF), οι οποίες παρείχαν σημαντικές πληροφορίες για την ορυκτολογική και χημική σύσταση των δειγμάτων. Τέλος, για την λήψη μετρήσεων σε ό,τι αφορά τις ηλεκτρικές ιδιότητες των υλικών, χρησιμοποιήθηκε η τεχνική της διηλεκτρικής φασματοσκοπίας ευρείας περιοχής συχνοτήτων (Broadband Dielectric Spectroscopy, BDS), σε εύρος θερμοκρασιών από τη θερμοκρασία δωματίου έως και τους 280 οC.

Η σύγκριση των πειραματικών αποτελεσμάτων οδήγησε σε συμπεράσματα για τη σαφή επίδραση της χημικής, ορυκτολογικής σύστασης και της κοκκομετρίας των υλικών στις ηλεκτρικές/διηλεκτρικές ιδιότητες, στην μετρούμενη περιοχή θερμοκρασιών. Συγκεκριμένα τα χονδρόκοκκα δείγματα της ιπτάμενης τέφρας και της σκωρίας εμφανίζουν μικρότερη αγωγιμότητα σε σχέση με τα λεπτόκοκκα, το αντίθετο συμβαίνει στα δείγματα της ερυθράς ιλύος, ενώ τα δείγματα ανόργανων υλικών κατεδαφίσεων παρουσιάζουν σχετικά μικρή αγωγιμότητα συγκριτικά με τα υπόλοιπα υλικά.
Functional Renormalisation Group analysis of a Tensorial Group Field Theory on $\mathbb{R}^3$
Creators: name: Geloun, Joseph Ben
name: Martini, Riccardo
name: Oriti, Daniele
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study a model of Tensorial Group Field Theory (TGFT) on $\mathbb{R}^3$ from the point of view of the Functional Renormalisation Group. This is the first attempt to apply a renormalisation procedure to a TGFT model defined over a non-compact group manifold. IR divergences (with respect to the metric on $\mathbb{R}$) coming from the non-compactness of the group are regularised via compactification, and a thermodynamic limit is then taken. We identify then IR and UV fixed points of the RG flow and find strong hints of a phase transition of the TGFT system from a symmetric to a broken or condensate phase in the IR.
description: 7 pages, 2 Figures
Fitting ideals of class groups for CM abelian extensions
Creators: name: Atsuta, Mahiro
name: Kataoka, Takenori
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R29

description: Let $K/k$ be a finite abelian CM-extension and $T$ a suitable finite set of finite primes of $k$. In this paper, we determine the Fitting ideal of the minus component of the $T$-ray class group of $K$, except for the $2$-component, assuming the validity of the equivariant Tamagawa number conjecture. As an application, we give a necessary and sufficient condition for the Stickelberger element to lie in that Fitting ideal.
description: 22 pages
Does the market demand a different kind of research?
Creators: name: Del Nord, Romano
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: The current situation calls for research to be directed towards strategic objectives for recovery aimed at the transferability of results. For technological research in architecture, this involves analysing critical situations in the processes of transforming the built environment and, in the first place, in the construction of public works. The article identifies them as the conflict between the main decision-making areas and the inefficiency of the procedural mechanisms introduced to overcome them. The assumption is the recovery of an ethical dimension, but research has a duty to promote a technical and managerial culture, which is currently lacking, and to develop tools that facilitate informed consultation among the players. Even at international level, priority should be given to acting on organizational process models that highlight transdisciplinary collaboration principles in real time and throughout the entire development of an intervention programme.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
Anchored foams and annular homology
Creators: name: Akhmechet, Rostislav
name: Khovanov, Mikhail
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 57K18, 57K16, 18N25

description: We describe equivariant SL(2) and SL(3) homology for links in the solid torus via foam evaluation. The solid torus is replaced by 3-space with a distinguished line in it. Generators of state spaces for annular webs are represented by foams with boundary that may intersect the distinguished line; intersection points, called anchor points, contribute additional terms, reminiscent of square roots of the Hessian, to the foam evaluation. Both oriented and unoriented SL(3) foams are treated in the paper.
description: 56 pages, many figures
Ground-state selection and spin-liquid behaviour in the classical Heisenberg model on the breathing pyrochlore lattice
Creators: name: Benton, Owen
name: Shannon, Nic
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic pyrochlore oxides, including the spin ice materials, have proved to be a rich field for the study of geometrical frustration in 3 dimensions. Recently, a new family of magnetic oxides has been synthesised in which the half of the tetrahedra in the pyrochlore lattice are inflated relative to the other half, making an alternating array of small and large tetrahedra. These "breathing pyrochlore" materials such as LiGaCr4O8, LiInCr4O8 and Ba3Yb2Zn5O11 provide new opportunities in the study of frustrated magnetism. Here we provide an analytic theory for the ground state phase diagram and spin correlations for the minimal model of magnetism in breathing pyrochlores: a classical nearest neighbour Heisenberg model with different exchange coefficients for the two species of tetrahedra. We find that the phase diagram comprises a Coulombic spin liquid phase, a conventional ferromagnetic phase and an unusual antiferromagnetic phase with lines of soft modes in reciprocal space, stabilised by an order-by-disorder mechanism. We obtain a theory of the spin correlations in this model using the Self Consistent Gaussian Approximation (SCGA) which enables us to discuss the development of correlations in breathing pyrochlores as a function of temperature, and we quantitatively characterise the thermal crossover from the limit of isolated tetrahedra to the strongly correlated limit of the problem. We compare the results of our analysis with the results of recent neutron scattering experiments on LiInCr4O8.
description: 12 pages, 10 figures
Digitizing the (post-)Byzantine iconographic and inscriptional heritage in Bulgaria
Creators: name: Iliev, Dimitar
name: Vasilev, Tsvetan
Publisher: name: Zenodo
Year: 2023
Subjects: Digital Epigraphy, Post-Byzantine heritage, Byzantine heritage, Murals, Inscriptions

description: The poster describes the aims and the workflow of a new project at the University of Sofia, Bulgaria, that deals with some of the most interesting types of historical inscriptions hitherto poorly covered by Digital Epigraphy. These are the inscriptions accompanying church murals, especially from the (post)-Byzantine world. Byzantine religious art left a rich heritage of artistic canons and conventions that lived on long after Byzantium itself was gone, sometimes in quite different linguistic and cultural contexts. There is a great number of texts written in (sometimes substandard) Byzantine Greek accompanying various religious scenes in churches and monasteries throughout Bulgaria from the period of Ottoman rule (XV-XΙΧ c.). The forms and functions of such inscriptions have rarely been an object of research beyond the scope of art-historical publications where they are usually described as a part of the image. However, such texts, even when they appear extremely short and standardized, enter into a whole range of relations that require further study and proper representation. Firstly, there is the question of the place of the inscription in the context of the entire visual composition: a relation that can vary from the simple explanation of a scene to the subtle interplay between a saintly character and the quotation contained in the book or scroll (s)he holds. Then, the issue arises about the intertextual relation of such quotations and the scriptural or liturgical traditions of which they were instances, echoes, etc. As well, the roles of the inscriptions in the larger framework not only of the particular religious building but also of the whole culture of the respective period and the linguistic competence of its audiences needs examination. The poster describes the methodology which aims at resolving such complex issues through the EpiDoc-based tools elaborated during the work on the Telamon collection of the ancient Greek inscriptions from Bulgaria. For the processing, indexing, and publication of the texts and the images, our own AIAX EpiDoc front-end service is customized and applied. For the accurate and user-friendly representation of the different connections of the texts with their wider iconographical, intertextual, and cultural contexts, a conceptual model is currently being created. According to this model, different authority files will be linked to the metadata of the particular texts in ways that will allow for the searching and the organizing of the monuments according to intersections of different classifying criteria. A demonstration of the online collection will accompany the presentation.
title: A Compositional Exploration of Auditory-Visual Synaesthesia
Creators: name: Anderson, Corin
Publisher: name: Edinburgh Napier University
Year: 2023

description: This thesis is an autoethnographic exploration of how my music composition practice is influenced by my auditory-visual synaesthesia. I perceive music as coloured and textured shapes – ‘photisms’ – in my mind’s eye. There are few first-person accounts of synaesthesia’s impact on music composition processes and outputs. The aim of the study is to investigate how my synaesthetic experiences affect the music I make, through the creation and analysis of an album of electronic music titled Photisms. The accompanying textual document employs an autoethnographic method proposed by Chang (2008), providing a first-person account of my own synaesthesia and analysing how it influences my composition processes and outputs. Firstly, I consider the impact timbre has on the shape and colour of my photisms. I discuss how various timbral transformation techniques can result in photism multiplication and emergence, and composite photisms (terms I have coined to define previously uninvestigated phenomena). Secondly, I explain how my photisms also appear to have texture and weight, and materialise as solid, liquid, gaseous, or plasma substances. The perceived weight and state of matter of musically-induced photisms is a formerly unexplored topic in academic literature. Thirdly, the spatiality and temporality of my synaesthetic visualisations of music are examined. I explain how the perceived location of my photisms can be defined using the Cartesian coordinate system, and how tempo and speed manipulation affect my synaesthetic experiences. Finally, I explain how, through a process of audiation, I can translate visual images into music by reverse-engineering my synaesthesia. This innovative approach to music-making has not previously been investigated. Through examination of these four areas, this study demonstrates how auditoryvisual synaesthetic experiences can affect, and be exploited in, the composition of electronic music.
Highly Anistoropic Thermal Conductivity of Arsenene: An ab initio Study
Creators: name: Zeraati, M.
name: Allaei, S. M. Vaez
name: Sarsari, I. Abdolhosseini
name: Pourfath, M.
name: Donadio, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Elemental 2D materials exhibit intriguing heat transport and phononic properties. Here we have investigated the lattice thermal conductivity of newly proposed arsenene, the 2D honeycomb structure of arsenic, using {\it ab initio} calculations. Solving the Boltzmann transport equation for phonons, we predict a highly anisotropic thermal conductivity, of $30.4$ and $7.8$ W/mK along the zigzag and armchair directions, respectively at room temperature. Our calculations reveal that phonons with mean free paths between $20$ nm and $1$ $μ$m provide the main contribution to the large thermal conductivity in the zig-zag direction, mean free paths of phonons contributing to heat transport in the armchair directions range between $20$ and $100$ nm. The obtained low and anisotropic thermal conductivity, and feasibility of synthesis, in addition to other reports on high electron mobility, make arsenene a promising material for a variety of applications, including thermal management and thermoelectric devices.
description: 5 pages, 7 figures
Sustainability and strategies for ‘rebuilding’ abandoned territories
Creators: name: Forlani, Maria Cristina
name: Radogna, Donatella
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: The study concerns the L’Aquila territory, at a particular point in time (post earthquake), when past and present vulnerabilities call for structural interventions that will ensure powerful and lasting recovery. This article focuses on one particular aspect of the overall work we are carrying out: the identification of appropriate sustainable development materials and technologies for testing in situ. Briefly, and for contextual purposes, we set out the cultural and scientific reference points (familiarity with territorial sustainability levels for appropriate and informed choices) that underpin the research statement; we outline the parallel survey topics that complete the strategic territorial development framework, for a better understanding of the subject. In particular, we refer to actions for promoting a different sort of residentiality underpinned by sustainable mobility, and access to services, new job opportunities in eco-industrial clusters for sustainable building and further opportunities stemming from the integration of the agricultural, energy and tourist sectors.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
Unauthorised building as a factor in the recession. Analysis, strategies and plans for sustainable development
Creators: name: Vitrano, Rosa Maria
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: How can we turn the tide on the indiscriminate sale of land? What sort of development would conform to environmental and economic needs? With a view to laying the foundations for effectively redressing criticalities determined by the abuse or improper use of buildings, the University of Palermo has promoted: the APRAE Project (Analysis, Prevention and Recovery of unauthorized construction), the HERA Project (Habitat Recovery Environment), Aegean-Med Project, arose from virtuous collaboration with the Hellenic Ministry of Culture (Greece). The research explored the phenomenological structure of unauthorized building and its negative impact on balance of the «housing system» in depth on one hand; on the other it has identified competitive rehabilitation strategies based on sustainability, innovation and participation.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
A sustainable building product: advanced insulation panels obtained by recycling regional sheep’s wool
Creators: name: Bosia, Daniela
name: Giordano, Roberto
name: Savio, Lorenzo
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2011

description: The article deal with an ongoing research aimed at developing an advanced self-bearing panel, fitted for thermal and acoustic insulation of buildings, derived from the reuse and recycling of local sheep wool. The development of a supply chain of environmentally friendly products (a self bearing panel made of 100% wool) encourages, on the one hand, the use of a material so far classified in Italy as special waste and, on the one other, provides new opportunities for a sheepfarming that it is now going through an economic recession, with positive effects on the mountain and the hill landscape.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 1 (2011): Beyond the crisis
Dockerizing DraCor – A Container-based Approach to Reproducibility in Computational Literary Studies [Slides]
Creators: name: Boerner, Ingo
name: Trilcke, Peer
name: Milling, Carsten
name: Fischer, Frank
name: Sluyter-Gäthje, Henny
Publisher: name: Zenodo
Year: 2023
Subjects: Reproducibility
Docker
Programmable Corpora
Computational Literary Studies

description: While the calls for reproduction studies in Computational Literary Studies (CLS) have become louder, practical aspects, especially the interplay of the components involved in the research process (code, data, environments, infrastructures, etc.) proves to be a hurdle for reproducing research. We present a way to fully reproducible research using a Docker-based approach: We exemplarily implemented it for a network-analytic study on a corpus of about 3,000 theater plays derived from the DraCor project. We demonstrate that the use of highly portable, self-contained digital artifacts (Docker images) containing runnable research environments not only allow for a full reproduction of the study, but also offer ways to implement different scenarios of repeating research (e.g. same code, different data).
Recursion formulas for integrated products of Jacobi polynomials
Creators: name: Beuchler, Sven
name: Haubold, Tim
name: Pillwein, Veronika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 33C45, 33C70, 65N30

description: From the literature it is known that orthogonal polynomials as the Jacobi polynomials can be expressed by hypergeometric series. In this paper, the authors derive several contiguous relations for terminating multivariate hypergeometric series. With these contiguous relations one can prove several recursion formulas of those series. This theoretical result allows to compute integrals over products of Jacobi polynomials in a very efficient recursive way. Moreover, the authors present an application to numerical analysis where it can be used in algorithms which compute the approximate solution of boundary value problem of partial differential equations by means of the finite elements method (FEM). With the aid of the contiguous relations, the approximate solution can be computed much faster than using numerical integration. A numerical example illustrates this effect.
Exact probability distribution for the two-tag displacement in single-file motion
Creators: name: Sabhapandit, Sanjib
name: Dhar, Abhishek
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a gas of point particles moving on the one-dimensional line with a hard-core inter-particle interaction that prevents particle crossings --- this is usually referred to as single-file motion. The individual particle dynamics can be arbitrary and they only interact when they meet. Starting from initial conditions such that particles are uniformly distributed, we observe the displacement of a tagged particle at time $t$, with respect to the initial position of another tagged particle, such that their tags differ by $r$. For $r=0$, this is the usual well studied problem of the tagged particle motion. Using a mapping to a non-interacting particle system we compute the exact probability distribution function for the two-tagged particle displacement, for general single particle dynamics. As by-products, we compute the large deviation function, various cumulants and, for the case of Hamiltonian dynamics, the two-particle velocity auto-correlation function.
description: 16 pages, 7 figures, contribution to the JSTAT Special Issue based on the Galileo Galilei Institute Workshop "Advances in Nonequilibrium Statistical Mechanics"