cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Iter Romanum. Lehrwerk Latein / Interesse. Lehrwerk für Latein als 2. Fremdsprache / Itinera. Lateinisches Unterrichtswerk für Latein als 3. Fremdsprache
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu:

[1.]Iter Romanum. Lehrwerk Latein. (2. Fremd- sprache). Hrsg.: Jörgen Vogel, Benedikt van Vugt, Theodor van Vugt. Paderborn: Schöningh 1996. 312 S. (ISBN 3-506-10550-7).
[2.] Interesse. Lehrwerk für Latein als 2. Fremdsprache in drei Bänden. Bd 1. Von Dieter Lohmann, Lilian Balensiefen, Matthias Bausenhart [u. a.] München: Lindauer 1996. 304 S. (ISBN 3-87488-831-2).
[3.] Itinera. Lateinisches Unterrichtswerk für Latein als 3. Fremdsprache. V. Dieter Kolschöwsky, Angela Steinmeyer, Hermann Tischleder, Klaus Weddigen. Stuttgart: Klett 1997. T.1: Texte und Übungen. 247 S. 42,00 DM. T.2: Cursus
94 grammaticus. Lesevokabular. 159 S. (ISBN 3-12-626110-8 bzw. 626120-5).
description: Forum Classicum, Nr. 2 (1997): Forum Classicum
title: Συστήματα οργάνωσης της εργασίας και της παραγωγής
Creators: name: Παπαδάκης Βασίλης
Publisher: name: Technical University of Crete
Year: 2004

description: φ. 1: Η σχολή της ρύθμισης -- Κεφ. 2: Το ερευνητικό πρόγραμμα της ευέλικτης εξειδίκευσης -- Κεφ. 3: Μαρξιστική προσέγγιση των συστημάτων παραγωγής -- Κεφ. 4: Κριτική προσέγγιση της θεωρίας της ρύθμισης -- Κεφ. 5:  Κριτική στην ευέλικτη εξειδίκευση -- Κεφ. 6: Το περιεχόμενο των "μετασχηματισμών" στα συστήματα οργάνωσης της εργασίας και της παραγωγής και οι επιπτώσεις τους στην παραγωγή, την παραγωγικότητα και την απασχόληση
Effects of the Axion Through the Higgs Portal on Primordial Gravitational Waves During the Electroweak Breaking
Creators: name: Oikonomou, V. K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the effects of short axion kination eras on the energy spectrum of the primordial gravitational waves corresponding to modes that re-enter the Hubble horizon at the post-electroweak symmetry breaking epoch, well within the radiation domination era. Our main assumption is the existence of an extremely weakly coupled hidden sector between the Higgs and the axion, materialized by higher order non-renormalizable dimension six and dimension eight operators, active at a scale M of the order 20-100TeV. This new physics scale M which is way higher than the electroweak scale, is motivated by the lack of new particle observations in the large hadron collider to date, beyond the electroweak scale. Once the electroweak symmetry breaking occurs at T\sim 100 GeV, the axion potential acquires a new minimum due to the new terms generated by the electroweak breaking, and the axion oscillations at the origin are destabilized. In effect after some considerable amount of time, the axion rolls swiftly to its new minimum, experiencing a short kination epoch, where its energy density redshifts as $ρ_a\sim a^{-6}$. After it reaches the new minimum, since the latter is energetically less favorable that the Higgs minimum, it decays to the Higgs minimum and the Universe is described again by the Higgs minimum. The axion returns to the origin and commences again oscillations initiated by quantum fluctuations, redshifts as dark matter, and the same procedure is repeated perpetually. These short axion kination eras may disturb the background total equation of state parameter during the radiation domination era. As we show, the energy spectrum of the gravitational waves mainly depends on how many times the short axion kination epochs occur.
description: PRD Accepted, Abstract reduced due to arXiv limitations
Solitons in the Gauged Skyrme-Maxwell Model
Creators: name: Livramento, Leandro Roza
name: Radu, Eugen
name: Shnir, Yakov
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider soliton solutions of the U(1) gauged Skyrme model with the pion mass term. The domain of existence of gauged Skyrmions is restricted from above by the value of the pion mass. Concentrating on the solutions of topological degree one, we find that coupling to the electromagnetic field breaks the symmetry of the configurations, the Skyrmions carrying both an electric charge and a magnetic flux, with an induced dipole magnetic moment. The Skyrmions also possess an angular momentum, which is quantized in the units of the electric charge. The mass of the gauged Skyrmions monotonically decreases with increase of the gauge coupling.
description: 17 pages, 6 figures
Control of a full port-to-port mission for a feeder vessel
Creators: name: De Kruif, Bas J.
name: Van Daalen, Ed F. G.
name: H. Cozijn
name: G. Iavicoli
Publisher: name: Zenodo
Year: 2023

description: OCEANS 2023 is an event for global maritime professionals to learn, innovate, and lead in the
 protection and utilization of the world’s largest natural resource – our Oceans. OCEANS 2023 took place between the 05th-08th of June 2023, in Limerick, under the theme ‘Blue Ocean Planet Earth‘. OCEANS is a bi-annual event for global marine technologists, engineers, students, government officials, lawyers, and advocates. The OCEANS conference is the flagship event of the Marine Technology Society (MTS) and the IEEE Oceanic Engineering Society (OES). The conference is recognized as the premier forum for the international marine community to meet and discuss relevant topics and current trends while creating a community of learners and influencers who consistently advance research, practices, and policies for the marine field. OCEANS features an associated trade exhibition with companies and institutions representing the wide range of activities found in the marine community. The conference agenda is available here. MOSES was represented by MARIN colleagues who prepared, and presented the paper: OCEANS 2023 is an event for global maritime professionals to learn, innovate, and lead in the
 protection and utilization of the world’s largest natural resource – our Oceans. OCEANS 2023 took place between the 05th-08th of June 2023, in Limerick, under the theme ‘Blue Ocean Planet Earth‘. OCEANS is a bi-annual event for global marine technologists, engineers, students, government officials, lawyers, and advocates. The OCEANS conference is the flagship event of the Marine Technology Society (MTS) and the IEEE Oceanic Engineering Society (OES). The conference is recognized as the premier forum for the international marine community to meet and discuss relevant topics and current trends while creating a community of learners and influencers who consistently advance research, practices, and policies for the marine field. OCEANS features an associated trade exhibition with companies and institutions representing the wide range of activities found in the marine community. The conference agenda is available here. MOSES was represented by MARIN colleagues who prepared, and submitted the paper: "Control of a full port-to-port mission for a feeder vessel".
title: Διεπιφανειακά κύματα σε προεντεταμένα στρωματοποιημένα ελαστικά στερεά
Creators: name: Σιφνιωτόπουλος Χριστόφορος.
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Renal oncocytomas with 11q13 rearrangements: cytogenetic, molecular, Abstract and immunohistochemical analysis of cyclin D1
Creators: name: Jhang, Jeffrey S.
name: Narayan, Gopeshwar
name: Vundavalli, Murty V.
name: Mansukhani, Mahesh M.
Publisher: name: Columbia University
Year: 2004
Subjects: Kidneys--Diseases
Cytogenetics
Fluorescence in situ hybridization
Immunohistochemistry
Overexpression (Genetics)

description: Two groups of renal oncocytomas have been cytogenetically defined by the loss of one or both of chromosomes Y and 1 or by structural rearrangement involving 11q12~q13. We report five renal oncocytomas with structural chromosomal rearrangements involving 11q13 with previously unre- ported partner chromosomes (namely, 1, 6, and 7). For two of the five cases, a t(6;11)(p21;q13) translocation was revealed; the others had t(1;11)(p13;q13), t(7;11)(q11.2;q13), and t(5;11)(q35; q13). Fluorescence in situ hybridization confirmed translocation of CCND1 at 11q13 to partner chromosomes 5, 6, and 7. Overexpression of cyclin D1, the protein product of CCND1, was detected in three of the five cases (60%) by means of immunohistochemical staining of formalin-fixed, paraffin- embedded tumor sections. In three cases for which fresh tissue was available, Southern blot analysis using the MDL-5 probe for the BCL1 breakpoint did not reveal rearrangement of BCL1. In addition, six consecutive renal oncocytomas diagnosed at our institution between 1999 and 2002 whose karyotypes did not show 11q13 translocations were all negative for cyclin D1 overexpression under immunohistochemical analysis. The findings of CCND1 rearrangement with FISH and correlation with cyclin D1 overexpression under immunohistochemical analysis suggest that cyclin D1 alter- ations play a role in the subset of renal oncocytomas with 11q translocations, although other genes may also be involved.
Evolving Simpler Constructed Features for Clustering Problems with Genetic Programming
Creators: name: Schofield, F
name: Lensen, Andrew
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: Uncategorized

description: Clustering is a widely used unsupervised learning technique. However, as the size and complexity of data increases, the performance of clustering algorithms diminishes, as well as the interpretability of the clustering partition. Genetic programming has been used to perform feature construction on data to increase clustering performance. However, existing work has not focused on encouraging simpler constructed features. In this paper, existing techniques are further developed to include parsimony pressure-a method to encourage evolution towards simpler solutions. With simpler solutions, the constructed features become easier to understand and interpret. The results of experiments using the proposed method show that parsimony pressure is an effective method for producing significantly simpler constructed features without any reduction on the performance of k-means++clustering. Evolved individuals are also analysed to demonstrate the effect of parsimony pressure on interpretability, showing the power of parsimony pressure for avoiding redundancies in individuals, and thus increasing the interpretability.
Constructing symmetric topological phases of bosons in three dimensions via fermionic projective construction and dyon condensation
Creators: name: Ye, Peng
name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, there is a considerable study on gapped symmetric phases of bosons that do not break any symmetry. Even without symmetry breaking, the bosons can still be in many exotic new states of matter, such as symmetry-protected trivial (SPT) phases which are short-range entangled and symmetry-enriched topological (SET) phases which are long-range entangled. It is well-known that non-interacting fermionic topological insulators are SPT states protected by time-reversal symmetry and U(1) fermion number conservation symmetry. In this paper, we construct three-dimensional exotic phases of bosons with time-reversal symmetry and boson number conservation U(1) symmetry by means of fermionic projective construction. We first construct an algebraic bosonic insulator which is a symmetric bosonic state with an emergent U(1) gapless gauge field. We then obtain many gapped bosonic states that do not break the time-reversal symmetry and boson number conservation via proper dyon condensations. We identify the constructed states by calculating the allowed electric and magnetic charges of their excitations, as well as the statistics and the symmetric transformation properties of those excitations. This allows us to show that our constructed states can be trivial SPT states (i.e. trivial Mott insulators of bosons with symmetry), non-trivial SPT states (i.e. bosonic topological insulators) and SET states (i.e. fractional bosonic topological insulators). In non-trivial SPT states, the elementary monopole (carrying zero electric charge but unit magnetic charge) and elementary dyon (carrying both unit electric charge and unit magnetic charge) are fermionic and bosonic, respectively. In SET states, intrinsic excitations may carry fractional charge.
description: 22 pages
Holzberg, Niklas: Ovid. Dichter und Werk
Creators: name: Richter-Reichhelm, Joachim
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Holzberg, Niklas: Ovid. Dichter und Werk. München: Beck 1997. 220 S. (ISBN 3-406- 41919-4)
description: Forum Classicum, Nr. 2 (1997): Forum Classicum
Aggressive presentation of breast implant-associated ALK-1 negative anaplastic large cell lymphoma with bilateral axillary lymph node involvement
Creators: name: Alobeid, Bachir
name: Sevilla, Deborah W.
name: El-Tamer, Mahmoud
name: Vundavalli, Murty V.
name: Savage, David G.
name: Bhagat, Govind
Publisher: name: Columbia University
Year: 2009
Subjects: Lymphomas
Breast--Cancer
Breast implants
Pathology

description: We recently encountered a unique case of breast silicone implant-associated ALK-1 negative anaplastic large cell lymphoma (ALCL) in a female with a remote history of breast carcinoma, which presented as a sinusoidal infiltrate in an axillary lymph node (LN) and had a highly complex karyotype.
Cobet, Justus: Heinrich Schliemann. Archäologe und Abenteurer
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Cobet, Justus: Heinrich Schliemann. Archäologe und Abenteurer. München: Beck 1997. (Becksche Reihe.2057. Beck Wissen). 128 S. (ISBN 3-406-41057-X)
description: Forum Classicum, Nr. 3 (1997): Forum Classicum
Minute-cadence Observations of the LAMOST Fields with the TMTS: III. Statistic Study of the Flare Stars from the First Two Years
Creators: name: Liu, Qichun
name: Lin, Jie
name: Wang, Xiaofeng
name: Gu, Shenghong
name: Shi, Jianrong
name: Zhang, Liyun
name: Xi, Gaobo
name: Mo, Jun
name: Cai, Yongzhi
name: Chen, Liyang
name: Chen, Zhihao
name: Guo, Fangzhou
name: Jiang, Xiaojun
name: Li, Gaici
name: Li, Wenxiong
name: Lin, Han
name: Lin, Weili
name: Liu, Jialian
name: Miao, Cheng
name: Ma, Xiaoran
name: Peng, Haowei
name: Xiang, Danfeng
name: Yan, Shengyu
name: Zhang, Jicheng
name: Zhang, Xinhan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Tsinghua University-Ma Huateng Telescopes for Survey (TMTS) aims to detect fast-evolving transients in the Universe, which has led to the discovery of thousands of short-period variables and eclipsing binaries since 2020. In this paper, we present the observed properties of 125 flare stars identified by the TMTS within the first two years, with an attempt to constrain their eruption physics. As expected, most of these flares were recorded in late-type red stars with $G_{\rm BP}-G_{\rm RP}$ > 2.0 mag, however, the flares associated with bluer stars tend to be on average more energetic and have broader profiles. The peak flux (F_peak) of the flare is found to depend strongly on the equivalent duration (ED) of the energy release, i.e., $F_{\rm peak} \propto {\rm ED}^{0.72\pm0.04}$, which is consistent with results derived from the Kepler and Evryscope samples. This relation is likely related to the magnetic loop emission, while -- for the more popular non-thermal electron heating model -- a specific time evolution may be required to generate this relation. We notice that flares produced by hotter stars have a flatter $F_{\rm peak} \propto {\rm ED}$ relation compared to that from cooler stars. This is related to the statistical discrepancy in light-curve shape of flare events with different colors. In spectra from LAMOST, we find that flare stars have apparently stronger H alpha emission than inactive stars, especially at the low temperature end, suggesting that chromospheric activity plays an important role in producing flares. On the other hand, the subclass having frequent flares are found to show H alpha emission of similar strength in their spectra to that recorded with only a single flare but similar effective temperature, implying that the chromospheric activity may not be the only trigger for eruptions.
description: 17 pages, 15 figures, 2 tables, refereed version. For associated data files, see https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/523/2193
Coherent detection of hidden spin-lattice coupling in a van der Waals antiferromagnet
Creators: name: Ergeçen, Emre
name: Ilyas, Batyr
name: Kim, Junghyun
name: Park, Jaena
name: Yilmaz, Mehmet Burak
name: Luo, Tianchuang
name: Xiao, Di
name: Okamoto, Satoshi
name: Park, Je-Geun
name: Gedik, Nuh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Strong interactions between different degrees of freedom lead to exotic phases of matter with complex order parameters and emergent collective excitations. Conventional techniques, such as scattering and transport, probe the amplitudes of these excitations, but they are typically insensitive to phase. Therefore, novel methods with phase sensitivity are required to understand ground states with phase modulations and interactions that couple to the phase of collective modes. Here, by performing phase-resolved coherent phonon spectroscopy (CPS), we reveal a hidden spin-lattice coupling in a vdW antiferromagnet FePS$_{3}$ that eluded other phase-insensitive conventional probes, such as Raman and X-ray scattering. With comparative analysis and analytical calculations, we directly show that the magnetic order in FePS$_{3}$ selectively couples to the trigonal distortions through partially filled t$_{2g}$ orbitals. This magnetoelastic coupling is linear in magnetic order and lattice parameters, rendering these distortions inaccessible to inelastic scattering techniques. Our results not only capture the elusive spin-lattice coupling in FePS$_3$, but also establish phase-resolved CPS as a tool to investigate hidden interactions.
description: 6 pages, 4 figures
Onigu, Renato: Sallustio e l’etnografia
Creators: name: Schmude, Michael P.
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Onigu, Renato: Sallustio e l’etnografia. Pisa: Giardini 1995 (Biblioteca di  12) 147 S. (ISBN 88-427 0258-7)
description: Forum Classicum, Nr. 3 (1997): Forum Classicum
Biallelic expression of HRAS and MUCDHL in human and mouse
Creators: name: Goldberg, Michael E.
name: Wei, Michelle L.
name: Yuan, Luwa
name: Vundavalli, Murty V.
name: Tycko, Benjamin
Publisher: name: Columbia University
Year: 2003
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Genomics
subject: Genomic imprinting

description: At least eight genes clustered in 1 Mb of DNA on human chromosome (Chr) 11p15.5 are subject to parental imprinting, with monoallelic expression in one or more tissues. Orthologues of these genes show conserved linkage and imprinting on distal Chr 7 of mice. The ex- tended imprinted region has a bipartite structure, with at least two differentially methylated DNA elements (DMRs) controlling the imprinting of two sub-domains. We pre- viously described three biallelically expressed genes (MRPL23, 2G7 and TNNT3) in 100 kb of DNA immedi- ately downstream of the imprinted H19 gene, suggesting that H19 marks one border of the imprinted region. Here we extend this analysis to two additional downstream genes, HRAS and MUCDHL (mu-protocadherin). We find that these genes are biallelically expressed in multiple fe- tal and adult tissues, both in humans and in mice. The mouse orthologue of a third gene, DUSP8, located be- tween H19 and MUCDHL, is also expressed biallelically. The DMR immediately upstream of H19 frequently shows a net gain of methylation in Wilms tumors, either via Chr 11p15.5 loss of heterozygosity (LOH) or loss of imprinting (LOI), but changes in methylation in CpG-rich sequences upstream and within the MUCDHL gene are rare in these tumors and do not correlate with LOH or LOI. These findings are further evidence for a border of the imprinted region immediately downstream of H19, and the data allow the construction of an imprinting map that includes more than 20 genes, distributed over 3 Mb of DNA on Chr 11p15.5.
Cross section measurement of the 12C(p,gamma)13N reaction with activation in a wide energy range
Creators: name: Gyürky, Gy.
name: Csedreki, L.
name: Szücs, T.
name: Kiss, G. G.
name: Halász, Z.
name: Fülöp, Zs.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The CNO cycle is one of the fundamental processes of hydrogen burning in stars. The first reaction of the cycle is the radiative proton capture on 12C and the rate of this 12C(p,gamma)13N reaction is related to the 12C/13C ratio observed e.g. in the Solar System. The low-energy cross section of this reaction was measured several times in the past, however, the experimental data are scarce in a wide energy range especially around the resonance at 1.7 MeV. In the present work the 12C(p,gamma)13N cross section was measured between 300 and 1900 keV using the activation method. This method was only used several decades ago in the low-energy region. As the activation method provides the total cross section and has uncertainties different from those of the in-beam gamma-spectroscopy technique, the present results provide a largely independent data set for future low-energy extrapolations and thus for astrophysical reaction rate calculations.
description: Accepted for publication in European Physical Journal A
Probabilistic-Bits based on Ferroelectric Field-Effect Transistors for Stochastic Computing
Creators: name: Luo, Sheng
name: He, Yihan
name: Cai, Baofang
name: Gong, Xiao
name: Liang, Gengchiau
Publisher: name: arXiv
Year: 2023
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: A probabilistic-bit (p-bit) is the fundamental building block in the circuit network of a stochastic computing, and it could produce a continuous random bit-stream with tunable probability. Utilizing the stochasticity in few-domain ferroelectric material(FE), we propose for the first time, the p-bits based on ferroelectric FET. The stochasticity of the FE p-bits stems from the thermal noise-induced lattice vibration, which renders dipole fluctuations and is tunable by an external electric field. The impact of several key FE parameters on p-bits' stochasticity is evaluated, where the domain properties are revealed to play crucial roles. Furthermore, the integer factorization based on FE p-bits circuit network is performed to verify its functionality, and the accuracy is found to depend on FE p-bits' stochasticity. The proposed FE p-bits possess the advantages of both extremely low hardware coast and the compatibility with CMOS-technology, rendering it a promising candidate for stochastic computing applications.
description: 23 pages, 7 figures and supplementary materials with 3 notes
Searching for Compact Object Candidates from LAMOST Time-Domain Survey of Four K2 Plates
Creators: name: Qi, Senyu
name: Gu, Wei-Min
name: Yi, Tuan
name: Zhang, Zhi-Xiang
name: Wang, Song
name: Liu, Jifeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The time-domain (TD) surveys of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) yield high-cadence radial velocities, paving a new avenue to study binary systems including compact objects. In this work, we explore LAMOST TD spectroscopic data of four K2 plates and present a sample of six single-lined spectroscopic binaries that may contain compact objects. We conduct analyses using phase-resolved radial velocity measurements of the visible star, to characterize each source and to infer the properties of invisible companion. By fitting the radial velocity curves for the six targets, we obtain accurate orbital periods, ranging from $\sim$ (0.6-6) days, and radial velocity semi-amplitudes, ranging from $\sim$ (50-130) km s$^{-1}$. We calculate the mass function of the unseen companions to be between 0.08 and 0.17 $M_{\odot}$. Based on the mass function and the estimated stellar parameters of the visible star, we determine the minimum mass of the hidden star. Three targets, J034813, J063350, and J064850, show ellipsoidal variability in the light curves from K2, ZTF, and TESS surveys. Therefore, we can put constraints on the mass of the invisible star using the ellipsoidal variability. We identify no X-ray counterparts for these targets except for J085120, of which the X-ray emission can be ascribed to stellar activity. We note that the nature of these six candidates is worth further characterization utilizing multi-wavelength follow-up observations.
description: 13 pages, 6 figures, accepted for publication in The Astronomical Journal
title: Αξιολόγηση ανθρακικών πετρωμάτων, που τροφοδοτούν βιομηχανίες παραγωγής ασβέστου του Ελλαδικού χώρου, ως προς τη δραστικότητα της παραγόμενης ασβέστου
Creators: name: Καλφα Ελενη-Αννα
Publisher: name: Technical University of Crete
Year: 2017

description: Στην παρούσα διπλωματική εργασία αξιολογήθηκαν διαφορετικοί τύποι ανθρακικών πετρωμάτων που αποτελούν πρώτες ύλες για την παραγωγή προϊόντων ασβέστου, ως προς τη δραστικότητα των παραγόμενων κονιών μετά από έψηση σε διαφορετικές συνθήκες. Μελετήθηκαν εργαστηριακά δέκα ανθρακικά πετρώματα που τροφοδοτούν διαφορετικές μονάδες παραγωγής ασβέστου, που δραστηριοποιούνται στον Ελλαδικό χώρο. Οι πρώτες ύλες αξιολογήθηκαν ως προς την ορυκτολογία και το χημισμό τους , με διαφορετικές μεθόδους  εργαστηριακών αναλύσεων. Τα αποτελέσματα της αξιολόγησης των πρώτων υλών φανέρωσαν τη χρήση διαφορετικών ανθρακικών πετρωμάτων, που περιλαμβάνουν ασβεστόλιθους υπερυψηλής και μέσης καθαρότητας, μάρμαρα, ασβεστιτικούς δολομίτες και δολομιτικούς ασβεστόλιθους.
Ακολούθησαν πειράματα έψησης των δειγμάτων σε θερμοκρασίες χαμηλής, ενδιάμεσης και υψηλής ασβεστοποίησης (850, 950 & 1050° C, αντίστοιχα). Μελετήθηκε η δραστικότητα των προϊόντων της έψησης, βάσει του προτύπου ΕΝ 459-02 αλλά και η επίδραση διαδικασίας αέριας σβέσης στις παραγόμενες κονίες. Τα προϊόντα της έψησης περιλάμβαναν ασβέστους υψηλής και μεσαίας δραστικότητας, ανάλογα με τη θερμοκρασία έψησης. Οι περισσότερο ενεργές κονίες παρήχθησαν μετά απο έψηση στους 950° C για 4 ώρες, θεμρκρασία στην οποία ολοκληρώνεται πλήρως η διάσπαση των περιεχομένων ποσοστών ανθρακικών ορυκτών στις πρώτες ύλες. Πιστοποιήθηκε η επίδραση του χημισμού και πιο συγκεκριμένα της περιεκτικότητας των αρχικών δειγμάτων σε οξείδιο του μαγνησίου (MgO) και των συνθηκών υψηλής ασβεστοποίησης στη δραστικότητα των παραγόμενων προϊόντων ασβέστου.
Electromagnetic vacuum stresses and energy fluxes induced by a cosmic string in de Sitter spacetime
Creators: name: Saharian, A. A.
name: Manukyan, V. F.
name: Kotanjyan, V. Kh.
name: Grigoryan, A. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For the electromagnetic field in (D+1)-dimensional locally de Sitter (dS) spacetime, we analyze the effects of a generalized cosmic string type defect on the vacuum expectation value of the energy-momentum tensor. For the Bunch-Davies vacuum state, the topological contributions are explicitly extracted in both the diagonal and off-diagonal components. The latter describes the presence of radially directed energy flux in the vacuum state. It vanishes for $D=3$ because of the conformal invariance of the electromagnetic field and is directed towards the cosmic string for $D\geq 4$ . The topological contributions in the vacuum stresses are anisotropic and, unlike to the geometry of a cosmic string in the Minkowski spacetime, for $D>3$ the stresses along the directions parallel to the string core differ from the energy density. Depending on the planar angle deficit and the distance from the cosmic string, the corresponding expectation values can be either positive or negative. Near the cosmic string the effect of the gravitational field on the diagonal components of the topological part is weak. The spacetime curvature essentially modifies the behavior of the topological terms at proper distances from the cosmic string larger than the dS curvature radius. In that region, the topological contributions in the diagonal components of the energy-momentum tensor decay in inverse proportion to the fourth power of the proper distance and the energy flux density behaves as inverse-fifth power for all values of the spatial dimension $D$. The exception is the energy density in the special case $D=4$.
description: 23 pages, 4 figures, Discussion added
Krautheimer, Richard: Rom. Schicksal einer Stadt 312-1308
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Krautheimer, Richard: Rom. Schicksal einer Stadt 312-1308. [Rome. Profile of a city 312- 1308, dt.] 2. Aufl. München: Beck 1996. 424 S. 98,00 DM (ISBN3-406-30575-X) (als Lizenzausgabe für die Wissenschaftliche Buchgesellschaft für Mitglieder 78,00 DM).
description: Forum Classicum, Nr. 4 (1997): Forum Classicum
Genomic and Expression Analysis of the 12p11-p12 Amplicon Using EST Arrays Identifies Two Novel Amplified and Overexpressed Genes
Creators: name: Bourdon, Veronique
name: Naef, Félix
name: Rao, Pulivarthi
name: Reuter, Victor
name: Mok, Samuel C.
name: Bosl, George
name: Koul, Sanjay
name: Vundavalli, Murty V.
name: Kucherlapati, Raju
name: Chaganti, R.S.K.
Publisher: name: Columbia University
Year: 2002
Subjects: Genomics
Ovaries--Cancer--Genetic aspects
Testis--Cancer
Comparative genomic hybridization
Overexpression (Genetics)

description: We performed parallel array comparative genomic hybridization and array expression analysis of the 12p11-p12 amplicon in human testicular seminomas and an ovarian carcinoma cell line using an expressed se- quence tags (ESTs) array spotted with 8254 ESTs. The data were normal- ized using a robust statistical modeling and the significance inferred from the local SD. We identified two ESTs within the chromosomal amplicon that were amplified and overexpressed in >75–100% of analyzed tumors with the 12p11-p12 amplicon. These sequences, belonging to coding re- gions of two novel genes designated here as GCT1 and GCT2, were broadly expressed in a panel of human tissues, including testis and ovary. GCT1 and GCT2 were overexpressed in 92 and 71%, respectively, of a panel of seminomas tested. Combined array comparative genomic hybridization and array expression analysis is a valid approach for gene discovery in large chromosomal amplicons.
title: Reliability of equilibrium coefficients predicting methods
Creators: name: Νοδαρας Ευσταθιος
Publisher: name: Technical University of Crete
Year: 2017

description: Equilibrium coefficients (k-values) play a fundamental role in describing and understanding the phase behavior of reservoir fluids either inside the reservoir or on their way to the surface facilities. They correspond to the ratios that the concentration of each component in the vapor and in the liquid phase should exhibit so as to ensure thermodynamic equilibrium. The goal of this study is the evaluation of various k-values estimation methods at several pressures and temperatures against experimental data which has been obtained from several fluid samples.
For this purpose, a PVT experiments data-base is utilized to provide the necessary data for the estimation of k-values at several conditions. The data-base contains data collected through a set of surface flash expansions and differential liberation studies. Furthermore, k-values are estimated from the application of the correlations of Standing (1979) and Wilson (1968) at the same conditions and the results are compared while further taking into account the range of application.
More specifically the behavior of the k-values of light, intermediate and heavy components is examined as the pressure increases by means of charts and it is compared to the typical, theoretically derived k-values curves.
In general good agreement is observed in the results between the two approaches at relatively low pressures, which are pressures encountered at surface facilities rather than the reservoir itself. When the pressure exhibits higher values a deviation of the results of both methods in relation to the experimental k-values is observed.
Clauss, Manfred: Konstantin der Große und seine Zeit
Creators: name: Richter-Reichhelm, Joachim
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Clauss, Manfred: Konstantin der Große und seine Zeit. München: Beck 1996 (Beck’sche Reihe. 2042. C.H.Beck Wissen, ISBN 3-406-41042-1).
description: Forum Classicum, Nr. 4 (1997): Forum Classicum
A FPGA-based architecture for real-time cluster finding in the LHCb silicon pixel detector
Creators: name: Bassi, G.
name: Giambastiani, L.
name: Hennessy, K.
name: Lazzari, F.
name: Morello, M. J.
name: Pajero, T.
name: Prieto, A. Fernandez
name: Punzi, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Hardware Architecture (cs.AR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This article describes a custom VHDL firmware implementation of a two-dimensional cluster-finder architecture for reconstructing hit positions in the new vertex pixel detector (VELO) that is part of the LHCb Upgrade. This firmware has been deployed to the existing FPGA cards that perform the readout of the VELO, as a further enhancement of the DAQ system, and will run in real time during physics data taking, reconstructing VELO hits coordinates on-the-fly at the LHC collision rate. This pre-processing allows the first level of the software trigger to accept a 11% higher rate of events, as the ready-made hits coordinates accelerate the track reconstruction and consumes significantly less electrical power. It additionally allows the raw pixel data to be dropped at the readout level, thus saving approximately 14% of the DAQ bandwidth. Detailed simulation studies have shown that the use of this real-time cluster finding does not introduce any appreciable degradation in the tracking performance in comparison to a full-fledged software implementation. This work is part of a wider effort aimed at boosting the real-time processing capability of HEP experiments by delegating intensive tasks to dedicated computing accelerators deployed at the earliest stages of the data acquisition chain.
description: 13 pages, 22 figures. This work has been published on IEEE Transactions on Nuclear Science under a Creative Commons License
An embedded measurement system for electrical characterization of EGFET as pH sensor
Creators: name: Batista, Pablo Diniz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This work presents the development of an electronic system for the electrical characterization of pH sensors based on the extended gate field effect transistor (EGFET). We designed an electronic circuit with a microcontroller (PIC15F14K50) as the main component in order to provide two programmable outputs voltage as well as circuits to measure electric current and voltages. The instrument performance analyze was carried out using a glass electrode as a sensitive membrane for investigating the EGFET operation as pH sensor. The results show that the system is an alternative to commercial equipment for the electrical characterization of sensors based on field effect devices. In addition, some of the key features expected of this electronic module are: low cost, flexibility, portability and communication with a personal computer using a USB port.
description: 5 pages, 5 figures, Submitted for Measurement Science and Technology
A declining major merger fraction with redshift in the local Universe from the largest-yet catalog of major and minor mergers in SDSS
Creators: name: Nevin, R.
name: Blecha, L.
name: Comerford, J.
name: Simon, J.
name: Terrazas, B. A.
name: Barrows, R. S.
name: Vázquez-Mata, J. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is difficult to accurately identify galaxy mergers and it is an even larger challenge to classify them by their mass ratio or merger stage. In previous work we used a suite of simulated mergers to create a classification technique that uses linear discriminant analysis (LDA) to identify major and minor mergers. Here, we apply this technique to 1.3 million galaxies from the SDSS DR16 photometric catalog and present the probability that each galaxy is a major or minor merger, splitting the classifications by merger stages (early, late, post-coalescence). We present publicly-available imaging predictor values and all of the above classifications for one of the largest-yet samples of galaxies. We measure the major and minor merger fraction ($f_{\mathrm{merg}}$) and build a mass-complete sample of galaxies, which we bin as a function of stellar mass and redshift. For the major mergers, we find a positive slope of $f_{\mathrm{merg}}$ with stellar mass and negative slope of $f_{\mathrm{merg}}$ with redshift between stellar masses of $10.5 < M_* (log\ M_{\odot}) < 11.6$ and redshifts of $0.03 < z < 0.19$. We are able to reproduce an artificial positive slope of the major merger fraction with redshift when we do not bin for mass or craft a complete sample, demonstrating the importance of mass completeness and mass binning. We determine that the positive trend of the major merger fraction with stellar mass is consistent with a hierarchical assembly scenario. The negative trend with redshift requires that an additional assembly mechanism, such as baryonic feedback, dominates in the local Universe.
description: 29 pages, 22 figures, see figures 16 and 17 for a summary of the findings, accepted to MNRAS
title: Optimization of the production schedule of an oil field
Creators: name: Otarola-Lagos Jose-Cristian-Arturo
Publisher: name: Technical University of Crete
Year: 2017

description: The oil and gas industry constantly evolves by the hand of technology. The available software, with the input provided by mathematical correlations, provide a great tool for modeling, simulating and predicting the behavior of reservoirs and wells, provided of course with the proper information. The MSc course provided the opportunity to work with some of the software used in the oil and gas industry.
In the present work, and with the assistance of two packages from the IPM Suite (REVEAL and PROSPER), the process of designing a group of wells that must meet a target production for a given reservoir model will be faced. An initial overview for oil recovery methods will be provided, together with the problem statement and a brief description of the software packages to be used.
After this, a quick examination of the provided reservoir model will be performed, with the objective of assessing any difficulties that the operation could face.
After the presentation of the production problems that need to be solved, the procedure starts with the design of the wells, starting with their geometrical design as well as the downhole equipment to be used. Once the initial design is completed, an evaluation of the results obtained with the design proposed will be performed with the objective of determining if there is need for artificial lift systems to be implemented (For this study, Gas Lift).
With the initial designs completed and evaluated, the design of a Gas Lift System will be done with the use of the software package PROSPER, leading this to a proposed artificial lift design.
Finally, an evaluation of the results obtained and the influence of the design in the production expected for the reservoir model will be done, along with some comments on the relevance of the effort invested on satisfying the production requirements and the proposal of future work to be done on the same study case.
Evidence for self-organized criticality phenomena in prompt phase of short gamma-ray bursts
Creators: name: Li, Xiu-Juan
name: Zhang, Wen-Long
name: Yi, Shuang-Xi
name: Yang, Yu-Peng
name: Li, Jia-Lun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The prompt phase of gamma-ray burst (GRB) contains essential information regarding the physical nature and central engine, which are as yet unknown. In this paper, we investigate the self-organized criticality (SOC) phenomena in GRB prompt phase as done in X-ray flares of GRBs. We obtain the differential and cumulative distributions of 243 short GRB pulses, such as peak flux, FWHM, rise time, decay time, and peak time in the fourth BATSE TTE Catalog with the Markov Chain Monte Carlo (MCMC) technique. It is found that these distributions can be well described by power-law models. In particular, comparisons are made in 182 short GRB pulses in the third Swift GRB Catalog from 2004 December to 2019 July. The results are essentially consistent with those in BATSE ones. We notice that there is no obvious power-law index evolution across different energy bands for either BATSE or Swift sGRBs. The joint analysis suggests that GRB prompt phase can be explained by a Fractal-Diffusive, Self-Organized Criticality (FD-SOC) system with the spatial dimension S = 3 and the classical diffusion ? = 1. Our findings show that GRB prompt phases and X-ray flares possess the very same magnetically dominated stochastic process and mechanism.
description: 18 pages, 10 figures, accepted for publication in ApJS
Alice and the Too Many Mattresses
Creators: name: Gaines, Jane
Publisher: name: Columbia University
Year: 2020
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: With the release of the documentary Be Natural: The Untold Story of Alice Guy-Blaché (Pamela Green, 2018), it is certain that Alice Guy Blaché will now be heralded as the motion picture innovator that we in the field have always known her to have been. But the claim that the documentary makes—to Alice’s originality and imaginativeness—should please us and then immediately worry us as historians of the first decade of cinema. For the claim that Be Natural makes to Alice’s originality is made at the expense of the resourcefulness of that moment. For example, one of the titles that has been singled out for acclaim—even before Alice’s memorialization in the documentary—is Le Matelas épileptique/The Drunken Mattress, a film that she has been credited with having produced and directed at Gaumont in 1906.
Jehne, Martin: Caesar
Creators: name: Knobelsdorf, Solveig
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Jehne, Martin: Caesar. München: Beck 1997. 120 S., 14,80 DM (Becksche Reihe. 2044. Beck Wissen; ISBN 3-406-41044-8).
description: Forum Classicum, Nr. 1 (1998): Forum Classicum
Low paleopressure of the Martian atmosphere estimated from the size distribution of ancient craters
Creators: name: Kite, Edwin S.
name: Williams, Jean-Pierre
name: Lucas, Antoine
name: Aharonson, Oded
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The decay of the martian atmosphere - which is dominated by carbon dioxide - is a component of the long-term environmental change on Mars from a climate that once allowed rivers to flow to the cold and dry conditions of today. The minimum size of craters serves as a proxy for palaeopressure of planetary atmospheres, because thinner atmospheres permit smaller objects to reach the surface at high velocities and form craters. The Aeolis Dorsa region near Gale crater on Mars contains a high density of preserved ancient craters interbedded with river deposits and thus can provide constraints on atmospheric density around the time of fluvial activity. Here we use high-resolution orthophotos and digital terrain models from the Mars Reconnaissance Orbiter to identify ancient craters in Aeolis Dorsa that date to about 3.6 Gyr ago and compare their size distribution with models of atmospheric filtering of impactors. We obtain an upper limit of 0.9$\pm$0.1 bar, rising to 1.9$\pm$0.2 bar if rimmed circular mesas - interpreted to be erosionally-resistant fills of floors of impact craters - are excluded. We assume target properties appropriate for desert alluvium: if sediment had rock-like rock-mass strength similar to bedrock at the time of impact, the upper limit increases by a factor of up to two. If Mars did not have a stable multibar atmosphere at the time that the rivers were flowing - as suggested by our results - then the warm and wet CO2/H2O greenhouse is ruled out, and long-term average temperatures were most likely below freezing.
title: Application of biomarker data in oil characterization
Creators: name: Gomez Kiara-Jeannelle
Publisher: name: Technical University of Crete
Year: 2017

description: Biological markers (biomarkers) are a large group of hydrocarbons that are
readily employed to assess the nature of petroleum oil samples. While the chemical
applications of biomarkers are vast, this study used selected acyclic and cyclic,
polycyclic terpenoids, and tetraterpenoids to understand the nature of twenty
Williston Basin oils. The analysis also used the BioTool, an updated database that was
developed for this particular study. Some of the reliable biomarker ratios included
saturated hydrocarbon pristine/phytane ratio, diasteranes/steranes, C24/C23 tricyclic
terpane, C24TeT/C30 hopane, and C31 22R homohopane/C30 hopane. Overall, a
biomarker analysis using the BioTool is efficient, effective, and user-friendly. Further
work should be carried out developing constraints on the biomarker ratios for certain
characteristic oil Basins.
Constraint of the Nuclear Dissipation Coefficient in Fission of Hypernuclei
Creators: name: Rodríguez-Sánchez, J. L.
name: Cugnon, J.
name: David, J. -C.
name: Hirtz, J.
name: Kelić-Heil, A.
name: Vidaña, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Experimental studies of nuclear fission induced by fusion, transfer, spallation, fragmentation, and electromagnetic reactions in combination with state-of-the-art calculations are successful to investigate the nuclear dissipation mechanism in normal nuclear matter, containing only nucleons. The dissipation mechanism has been widely studied by the use of many different fission observables and nowadays the dissipation coefficients involved in transport theories are well constrained. However, the existence of hypernuclei and the possible presence of hyperons in neutron stars make it necessary to extend the investigation of the nuclear dissipation coefficient to the strangeness sector. In this Letter, we use fission reactions of hypernuclei to constrain for the first time the dissipation coefficient in hypernuclear matter, observing that this coefficient increases a factor of 6 in presence of a single $Λ$-hyperon with respect to normal nuclear matter.
description: 6 pages, 2 figures