cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diameter dependence of the temperature dynamics of hot carriers in photoexcited GaAsP nanowires
Creators: name: Sivan, Aswathi K
name: Di Mario, Lorenzo
name: Zhang, Yunyan
name: Catone, Daniele
name: OKeeffe, Patrick
name: Turchini, Stefano
name: Mussi, Valentina
name: Liu, Huiyun
name: Martelli, Faustino
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanowires (NWs) with their quasi-one-dimensionality often present different structural and opto-electronic properties than their thin-film counterparts. The thinner they are the larger these differences are, in particular in the carrier-phonon scattering and thermal conductivity. In this work, we present femtosecond transient absorbance measurements on GaAs0.8P0.2 NWs of two different diameters, 36 and 51 nm. The results show that thinner NWs sustain the hot-carriers at a higher temperature for longer times than thicker NWs. We explain the observation suggesting that in thinner NWs, the build-up of a hot-phonon bottleneck is easier than in thicker NWs because of the increased phonon scattering at the NW sidewalls which facilitates the build-up of a large phonon density. The large number of optical phonons emitted during the carrier relaxation processes generate a non-equilibrium population of acoustic phonons that propagates less efficiently in thin NWs. This makes the possible acoustic-to-optical phonon up-conversion process easier, which prolongs the LO phonon lifetime resulting in the slowdown of the carrier cooling. The important observation that the carrier temperature in thin NWs is higher than in thick NWs already at the beginning of the hot carrier regime suggests that the phonon-mediated scattering processes in the non-thermal regime play a major role at least for the carrier densities investigated here (8x1018-4x1019 cm-3). Our results also suggest that the boundary scattering of phonons at crystal defects is negligible compared to the surface scattering at the NW sidewalls.
Rotational Symmetry and A Light Mode in Two-Dimensional Staggered Fermions
Creators: name: Hatakeyama, Morio
name: Sawanaka, Hideyuki
name: So, Hiroto
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: To obtain a light mode in two-dimensional staggered fermions, we introduce four new local operators keeping the rotational invariance for a staggered Dirac operator. To split masses of tastes, three cases are considered. The mass matrix and the propagator for free theories are analyzed. We find that one of three cases is a good candidate for taking a single mode by the mass splitting. In the case, it is possible that a heavy mode obtains infinite mass on even sites or odd sites.
description: 17 pages, one reference added
Η σύνθετη διοικητική ενέργεια στην ελληνική έννομη τάξη
Creators: name: Γερασίμου, Αννα-Μαρία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Σύνθετη Διοικητική Ενέργεια
Complex Administrative Act

description: Σκοπός της μελέτης ήταν η ανάλυση του νομικού φαινομένου της σύνθετης διοικητικής ενέργειας στην ελληνική έννομη τάξη. Εξετάσαμε τη νομική φύση καθώς και την προέλευση του θεσμού, τόσο από την άποψη της θεωρητικής θεμελίωσης όσο και από την άποψη της συνδρομής της νομολογίας, η οποία είναι ζωτικής σημασίας. Στη συνέχεια παρουσιάστηκαν αναλυτικά τα εννοιολογικά στοιχεία και οι πιο χαρακτηριστικές περιπτώσεις σύνθετης διοικητικής ενέργειας και έγινε εκτενής αναφορά στη διάκριση της υπό έρευνα έννοιας από άλλες συγγενείς έννοιες , και πιο συγκεκριμένα από τις συναφείς πράξεις, την πολλαπλή διοικητική πράξη, την ατομική πράξη γενικού περιεχομένου, την πολυσύνθετη ενέργεια, την προπαρασκευαστική πράξη και την εγκριτική πράξη. Ακόμη, αναφερθήκαμε ενδελεχώς στο χειρισμό της σύνθετης διοικητικής ενέργειας στο δικονομικό πεδίο κατά το χρόνο πριν και μετά την έκδοση της τελικής πράξης και στο ενδιάμεσο αυτών διάστημα , και πιο συγκεκριμένα, ως αντικείμενο της ακυρωτικής δίκης ενώπιον του Συμβουλίου της Επικρατείας. Ένα άλλο θέμα που θίξαμε ήταν η γαλλικής έμπνευσης θεωρία των αποσπαστών πράξεων στις διοικητικές συμβάσεις. Ασχοληθήκαμε επιπλέον με τις συνέπειες της ακυρωτικής απόφασης κατά πράξης που συνιστά σύνθετη διοικητική ενέργεια , κυρίως όσον αφορά στις υποχρεώσεις της Διοίκησης που απορρέουν από την έκδοση αυτής της απόφασης.
description: The aim of the present thesis was the study of the legal matter of complex administrative acts in the national Greek law system. We examined the legal nature as well as the origins of this specific institution, as far as the doctrinal base and the contribution of jurisprudence are concerned, which are thought to be of vital importance. Then we presented in detail the features and the most distinguishing cases of the complex administrative acts and we extensively referred to the distinction of the studied theory from other relative legal acts, such as the attendant acts, the multiple administrative act, the individual act of general content, the multicomplex act, the preliminary acts and the approving acts. Furthermore, we analyzed the operation of the complex administrative act concerning the court procedure before and after the issuance of the final part (of the complex administrative act) and during the interim between them, and specifically as subject of application for annulment before the State Council. We also examined the theory of attached acts from administrative covenants, which has been embraced by the Greek judges. Another aim of this study was to examine the consequences of the avoidance adjudication versus an act which comprises a complex administrative act, mostly regarding the liabilities of the public administration that issue from this judgment.
Οικολογία και χριστιανική πίστη κατά τον Denis Edwards
Creators: name: Θεοδώρου, Μιχαήλ Αριστείδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: subject: Οικολογία
subject: Χριστιανική πίστη
subject: Denis Edwards
subject: Ecology
subject: FOS: Biological sciences
subject: Christian faith

description: Στην παρούσα μεταπτυχιακή εργασία ασχοληθήκαμε με τις απόψεις του ρωμαιοκαθολικού θεολόγου Denis Edwards σχετικά με τη σχέση της χριστιανικής πίστης με την οικολογία. Για το σκοπό αυτό κατηγοριοποιήσαμε τη μελέτη μας σε πέντε κεφάλαια. Στο πρώτο αναλύσαμε τις απόψεις του εν λόγω συγγραφέα σχετικά με τη σχέση του ανθρώπου με το περιβάλλον από θεολογική σκοπιά. Στο δεύτερο κεφάλαιο τη σχέση του Αγίου Πνεύματος με την άλογη κτίση και τη δημιουργία. Στη συνέχεια παρουσιάσαμε τις απόψεις του Edwards για τον Ιησού Χριστό ως τη Θεϊκή Σοφία μέσα από τα έργα του αποστόλου Παύλου, καθώς και τη θέση του Χριστού σε έναν εξελικτικό κόσμο. Έπειτα, στο τέταρτο κεφάλαιο, ασχοληθήκαμε με τις θέσεις του Edwards για τα έσχατα. Πιο συγκεκριμένα, για το μέλλον της άλογης κτίσης, για το μέλλον ως μυστήριο, καθώς και για τη σημασία του Ιησού Χριστού για το μέλλον του φυσικού κόσμου. Τέλος, στο πέμπτο κεφάλαιο είδαμε τη σημασία της λατρείας σε μια οικολογική πρακτική. Δηλαδή, κάναμε λόγο για μια οικολογική ευχαριστία, για την ανάγκη ύπαρξης οικολογικής μετάνοιας και για την εσωτερική αξία όλων των δημιουργημάτων, πάντοτε σύμφωνα με τον υπό μελέτη συγγραφέα.
description: In this postgraduate dissertation we associated with the opinions of the roman catholic theologian Denis Edwards about the relationship between the christian faith and ecology. For this reason we parted our search in five chapters. In first chapter we analyzed Edwards’ opinions about the relationship between human and environment from theological perspective. In second chapter we saw the relationship of the Holy Spirit with the irrational creature. Then we presented Edwards’ opinions for Jesus Crist as Wisdom of God through apostle Paul’s works, as and what about Crist in an evolutionary world. Furthermore, in fourth chapter, we saw Edwards’ views for the end times. More specifically, his views about the future of the irrational creature, about the future as mystery and about the importance of Jesus Crist for the future of the natural world. Finally, in the fifth chapter we presented the importance of worship in an ecological practice. Namely, we examined the ecological thanksgiving, the necessity of the existence ecological conversion and the internal value of all creatures, according to Denis Edwards.
Integrated Colours of Milky Way Globular Clusters and Horizontal Branch Morphology
Creators: name: Smith, Graeme H.
name: Strader, Jay
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Broadband colours are often used as metallicity proxies in the study of extragalactic globular clusters. A common concern is the effect of variations in horizontal branch (HB) morphology--the second-parameter effect--on such colours. We have used UBVI, Washington, and DDO photometry for a compilation of over 80 Milky Way globular clusters to address this question. Our method is to fit linear relations between colour and [Fe/H], and study the correlations between the residuals about these fits and two quantitative measures of HB morphology. While there is a significant HB effect seen in U-B, for the commonly used colours B-V, V-I, and C-T_1, the deviations from the baseline colour-[Fe/H] relations are less strongly related to HB morphology. There may be weak signatures in B-V and C-T_1, but these are at the limit of observational uncertainties. The results may favour the use of B-I in studies of extragalactic globular clusters, especially when its high [Fe/H]-sensitivity is considered.
description: 19 pages, including 26 figures. AN in press. Figure 9 stubbornly resists attempts to correct it
Η διερεύνηση της ουτοπίας στο ποιητικό έργο του Ανδρέα Εμπειρίκου
Creators: name: Παπαγεωργίου, Αθανασία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Υπερρεαλισμός
Ανδρέας Εμπειρίκος
Ουτοπία
Surrealism
Andreas Embeirikos
Utopia

description: Στόχος της εργασίας ήταν να αναδειχθεί ο τρόπος με τον οποίο ο ποιητής Ανδρέας Εμπειρίκος διαμορφώνει σταδιακά το προσωπικό του ποιητικό όραμα με τη βοήθεια της ποιητικής του υπερρεαλισμού. Πιο συγκεκριμένα, στο πρώτο κεφάλαιο, διερευνάται η έννοια της ουτοπίας αλλά και η σύνδεσή της με το κίνημα και τις αρχές του υπερρεαλισμού. Στη συνέχεια, στο δεύτερο κεφάλαιο, παρουσιάζονται τα βήματα που ακολούθησε ο ποιητής για να πραγματώσει τον συνδυασμό ουτοπίας και υπερρεαλιστικού ιδεώδους. Για να αποδειχθεί ότι η εμπειρίκεια ουτοπία ήταν ένα ποιητικό όραμα που διαμορφώθηκε σταδιακά από έργο σε έργο, στο τρίτο κεφάλαιο, παρουσιάζεται αυτή η πορεία, μέσα από την αναλυτική μελέτη του ποιητικού έργου του Εμπειρίκου. Τέλος, στο τέταρτο και το πέμπτο κεφάλαιο, προσεγγίζονται ερμηνευτικά τα δύο έργα στα οποία απαντάται η πιο πλήρης και ολοκληρωμένη μορφή της εμπειρίκειας ουτοπίας. Τα έργα αυτά είναι το ποίημα «Όχι Μπραζίλια μα Οκτάνα» (από τη συλλογή «Οκτάνα») και το 61ο κεφάλαιο του μυθιστορήματος «Ο Μέγας Ανατολικός». Μάλιστα, προκειμένου να φανεί ότι ο Εμπειρίκος εμπνέεται από ένα πλήθος έργων από την παγκόσμια λογοτεχνία, επιχειρούνται και ορισμένες διακειμενικές συγκρίσεις με ουτοπικά ή δυστοπικά έργα, όπως είναι η «Πολιτεία» του Πλάτωνα και ο «Θαυμαστός καινούριος κόσμος» του Aldus Huxley. Η εργασία ολοκληρώνεται με την παράθεση των συμπερασμάτων, όπου συνοψίζεται η πορεία διαμόρφωσης της εμπειρίκειας ουτοπίας και με συντομία παρουσιάζονται προοπτικές για περαιτέρω μελέτη του θέματος.
description: The aim of this thesis was to show how the Greek poet Andreas Embeirikos gradually formed his personal utopic vision assisted by surrealist poetics. In particular, in the first chapter, the concept of utopia is investigated in association with the movement and the principles of surrealism. Then, the second chapter, presents the steps taken by the poet to accomplish the combination of utopia and surrealist ideals. In order to be proved that Embeirikos’ utopia was a poetic vision that was progressively formed as the poet proceeded to his work, in the third chapter, this process is presented, through the analytical study of Embeirikos’ poems. Finally, in the fourth and the fifth chapter, both works are approached interpretatively in which the most complete and integrated form of Embeirikos’ utopia is found. These works are the poem “Not Brasilia but Oktana” (from the collection “Oktana”) and the 61st chapter of the novel “O Megas Anatolikos” (“The Great Eastern”). In fact, to illustrate that Embeirikos is inspired by a number of works from the world literature, some intertextual comparisons are attempted with utopic or dystopic works, such as Plato’s “Politeia” and Aldus Huxley’s “Brave New World”. The thesis is completed by a number of conclusions, where the formation of Embeirikos’ utopia is summarized and the prospects for further study of the subject are briefly presented.
Multifrequency VLA observations of the FR I radio galaxy 3C 31: morphology, spectrum and magnetic field
Creators: name: Laing, R. A.
name: Bridle, A. H.
name: Parma, P.
name: Feretti, L.
name: Giovannini, G.
name: Murgia, M.
name: Perley, R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high-quality VLA images of the FR I radio galaxy 3C 31 in the frequency range 1365 to 8440 MHz with angular resolutions from 0.25 to 40 arcsec. Our new images reveal complex, well resolved filamentary substructure in the radio jets and tails. We also use these images to explore the spectral structure of 3C 31 on large and small scales. We infer the apparent magnetic field structure by correcting for Faraday rotation. Some of the intensity substructure in the jets is clearly related to structure in their apparent magnetic field: there are arcs of emission where the degree of linear polarization increases, with the apparent magnetic field parallel to the ridges of the arcs. The spectral indices are significantly steeper (0.62) within 7 arcsec of the nucleus than between 7 and 50 arcsec (0.52 - 0.57). The spectra of the jet edges are also slightly flatter than the average for their surroundings. At larger distances, the jets are clearly delimited from surrounding larger-scale emission both by their flatter radio spectra and by sharp brightness gradients. The spectral index of 0.62 in the first 7 arcsec of 3C 31's jets is very close to that found in other FR I galaxies where their jets first brighten in the radio and where X-ray synchrotron emission is most prominent. Farther from the nucleus, where the spectra flatten, X-ray emission is fainter relative to the radio. The brightest X-ray emission from FR I jets is therefore not associated with the flattest radio spectra, but with a particle-acceleration process whose characteristic energy index is 2.24. The spectral flattening with distance from the nucleus occurs where our relativistic jet models require deceleration, and the flatter-spectra at the jet edges may be associated with transverse velocity shear. (Slightly abridged)
description: 17 pages, 13 figures, accepted for publication in MNRAS
Different quantization mechanisms in single-electron pumps driven by surface acoustic waves
Creators: name: Utko, P.
name: Gloos, K.
name: Hansen, J. Bindslev
name: Sorensen, C. B.
name: Lindelof, P. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the acoustoelectric current in single-electron pumps driven by surface acoustic waves. We have found that in certain parameter ranges two different sets of quantized steps dominate the acoustoelectric current versus gate-voltage characteristics. In some cases, both types of quantized steps appear simultaneously though at different current values, as if they were superposed on each other. This could indicate two independent quantization mechanisms for the acoustoelectric current.
description: 6 pages, 3 figures
A photometric study of two neglected eclipsing binaries
Creators: name: Kudak, V.
name: Fedurco, M.
name: Perig, V.
name: Parimucha, Š.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first BVR photometry, period variation, and photometric light-curve analysis of two poorly studied eclipsing binaries V1321 Cyg and CR Tau. Observations were carried out from November 2017 to January 2020 at the observatory of Uzhhorod National University. Period variations were studied using all available early published as well as our minima times. We have used newly developed ELISa code for the light curve analysis and determination of photometric parameters of both systems. We found that V1321 Cyg is a close detached eclipsing system with a low photometric mass ratio of $q=0.28$ which suggests that the binary is a post mass transfer system. No significant period changes in this system are detected. CR Tau is, on the other hand, a semi-detached system where the secondary component almost fills its Roche lobe. We detected a long-term period increase at a rate of $1.49 \times 10^{-7} d/y$, which support mass transfer from lower mass secondary component to the more massive primary.
Swift observations of GRB 070110: an extraordinary X-ray afterglow powered by the central engine
Creators: name: Troja, E.
name: Cusumano, G.
name: O'Brien, P.
name: Zhang, B.
name: Sbarufatti, B.
name: Mangano, V.
name: Willingale, R.
name: Chincarini, G.
name: Osborne, J. P.
name: Marshall, F. E.
name: Burrows, D. N.
name: Campana, S.
name: Gehrels, N.
name: Guidorzi, C.
name: Krimm, H. A.
name: La Parola, V.
name: Liang, E. W.
name: Mineo, T.
name: Moretti, A.
name: Page, K. L.
name: Romano, P.
name: Tagliaferri, G.
name: Zhang, B. B.
name: Page, M. J.
name: Schady, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of Swift multi-wavelength observations of GRB 070110 and its remarkable afterglow. The early X-ray light curve, interpreted as the tail of the prompt emission, displays a spectral evolution already seen in other gamma-ray bursts. The optical afterglow shows a shallow decay up to ~2 d after the burst, which is not consistent with standard afterglow models. The most intriguing feature is a very steep decay in the X-ray flux at ~20 ks after the burst, ending an apparent plateau. The abrupt drop of the X-ray light curve rules out an external shock as the origin of the plateau in this burst and implies long-lasting activity of the central engine. The temporal and spectral properties of the plateau phase point towards a continuous central engine emission rather than the episodic emission of X-ray flares. We suggest that the observed X-ray plateau is powered by a spinning down central engine, possibly a millisecond pulsar, which dissipates energy at an internal radius before depositing energy into the external shock.
description: 10 pages, 5 figures, accepted for publication in ApJ. Main change: refined analysis of optical data
เปรียบเทียบลักษณะทางพฤกษศาสตร์ของบัวหลวง 4 สายพันธุ์เพื่อการใช้ประโยชน์
Creators: name: เยาวมาลย์ น้อยใหม่
Publisher: name: สถาบันวิจัยและพัฒนา มหาวิทยาลัยเทคโนโลราชมงคลธัญบุรี
Year: 2021
Subjects: บัวหลวง
สายพันธุ์
ลักษณะทางพฤกษศาสตร์
การใช้ประโยชน์

description: วารสารวิจัย มหาวิทยาลัยเทคโนโลราชมงคลธัญบุรี, 20, 1, 53-67
Proton-atpase in fish gills
Creators: name: Lin, Hong
Publisher: name: University of British Columbia
Year: 2008

description: The cellular mechanisms responsible for branchial proton excretion and sodium absorption in freshwater rainbow trout, Oncorhynchus mykiss (Walbaum), were investigated by monitoring the proton excretion rate and determining the proton ATPase activity in gill tissue under different inhibitor treatments and environmental conditions. Evidence for the existence of anelectrogenic proton pump in fish gills was accumulated. Branchial proton excretion rate was estimated by measuring the total CO2, total ammonia, pH and buffer capacity of the inspired and expired water of the fish. The net proton excretion across fish gills was resistant to 0.1 mM amiloride which could completely abolish the branchial sodium uptake, indicating that aNa+/H+ exchanger was not responsible for this proton transport. Branchial proton excretion, however, was sensitive to vanadate and acetazolamide, suppressed by low external water pH and sodiumlevels, and stimulated by elevated ambient Pco2. All these characteristics are typical for proton transport mediated by anelectrogenic proton pump, as demonstrated in frog skin, turtle bladder and mammalian kidney. N-ethymaleimide-sensitive ATPase activity was measured incrude homogenates of gill tissue from rainbow trout using a coupled-enzyme ATPase assay in the presence of EGTA, ouabain andazide. This NEM-sensitive ATPase activity, determined to be about1.5 umol/mg.pr./h. at 15°C for freshwater trout, is also inhibited by other proton-ATPase blockers such as DCCD, DES,PCMBS and Bafilomycins. It was concluded, therefore, that the NEM-sensitive ATPase activity was generated by a proton-translocating ATPase. Since this NEM-sensitive ATPase was also sensitive to the plasma membrane ATPase inhibitor vanadate, the11+-ATPase in fish gill was speculated to be a plasma membrane type. Sodium concentration in the external media was the primary regulator of the H+-ATPase in fish gills, with low water sodium levels associated with high H+-ATPase activity. High external calcium concentration and plasma cortisol levels had a marked stimulating effect on H+-ATPase activity in fish gills only when the water sodium level was low. Thus the major role of the H+-ATPase in the gill epithelium is to facilitate Na+ uptake from fresh water. The H+-ATPase in the gills also plays a role inacid-base regulation. It was concluded that an electrogenic proton pump (H+-ATPase) indirectly coupled to a sodium conductive channel in the gill epithelium is the ion transport pathway which mediates proton excretion and energies sodium absorption in fresh waterfish.
Towards a Measure of code::proof: A toolchain walkthrough for computationally developing a statistical estimator
Creators: name: Gray, Charles Ti
Publisher: name: La Trobe
Year: 2021
Subjects: subject: 10499 Statistics not elsewhere classified
subject: FOS: Mathematics

description: A thesis presented for the degree of Doctor of Philosophy to the Department of Mathematics and Statistics, School of Engineering and Mathematical Sciences, La Trobe University, Australia.
Kinematic Control of compliant serial manipulators composed of dual-triangles
Creators: name: Zhao, Wanda
name: Pashkevich, Anatol
name: Klimchik, Alexandr
name: Chablat, Damien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The paper focuses on the kinematics control of a compliant serial manipulator composed of a new type of dualtriangle elastic segments. Some useful optimization techniques were applied to solve the geometric redundancy problem, ensure the stability of the manipulator configurations with respect to the external forces/torques applied to the endeffector. The efficiency of the developed control algorisms is confirmed by simulation.
description: arXiv admin note: text overlap with arXiv:2011.06912
Algebraic Supersymmetry: A case study
Creators: name: Buchholz, Detlev
name: Grundling, Hendrik
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T05; 81T60; 46L87

description: The treatment of supersymmetry is known to cause difficulties in the C*-algebraic framework of relativistic quantum field theory; several no-go theorems indicate that super-derivations and super-KMS functionals must be quite singular objects in a C*-algebraic setting. In order to clarify the situation, a simple supersymmetric chiral field theory of a free Fermi and Bose field defined on $\R$ is analyzed. It is shown that a meaningful C*-version of this model can be based on the tensor product of a CAR-algebra and a novel version of a CCR-algebra, the "resolvent algebra". The elements of this resolvent algebra serve as mollifiers for the super-derivation. Within this model, unbounded (yet locally bounded) graded KMS-functionals are constructed and proven to be supersymmetric. From these KMS-functionals, Chern characters are obtained by generalizing formulae of Kastler and of Jaffe, Lesniewski and Osterwalder. The characters are used to define cyclic cocycles in the sense of Connes' noncommutative geometry which are "locally entire".
description: 55 pages. Final version (to appear in Commun. Math. Phys)
Effects of Topological Defect on the Energy Spectra and Thermo-magnetic Properties of CO Diatomic Molecule
Creators: name: Edet, C. O.
name: Ikot, A. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Confinement effects of Aharonov-Bohm (AB) flux and magnetic fields with topological defect on CO diatomic molecule modeled by screened modified Kratzer potential is investigated in this paper. The all-encompassing effects of the fields and topological defect result in a strongly repulsive system. We discover that the collective effect of the fields and defect is intense than the lone and dual effect and consequently there is a substantial shift in the bound state energy of the system. We also find that to sustain a low-energy medium for the molecule modeled by SMKP, the topological defect and weak AB field are required, whereas the Magnetic field can be used as a control parameter or enhancer. The effects of the topological defect and magnetic and AB fields on the thermal and magnetic properties of the system are duly analyzed. We observe that the system tends to exhibit both a paramagnetic and diamagnetic behavior for weak and intense magnetic field respectively and some sort of saturation at large magnetic field. To further validate our findings, we map our result to 3D and a comparison of our results with what obtains in literature reveals an excellent agreement.
description: 33 pages, 2 Tables,11 Figures, 8304 words
Thermal and Oxidation Stability of Ti$_x$W$_{1-x}$ Diffusion Barriers Investigated by Soft and Hard X-ray Photoelectron Spectroscopy
Creators: name: Kalha, Curran
name: Bichelmaier, Sebastian
name: Fernando, Nathalie K.
name: Berens, Judith. V.
name: Thakur, Pardeep K.
name: Lee, Tien-Lin
name: Gutiérrez-Moreno, Julio. J.
name: Mohr, Stephan
name: Ratcliff, Laura E.
name: Reisinger, Michael
name: Zechner, Johannes
name: Nelhiebel, Michael
name: Regoutz, Anna
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The binary alloy of titanium-tungsten (TiW) is an established diffusion barrier in high-power semiconductor devices, owing to its ability to suppress the diffusion of copper from the metallisation scheme into the surrounding silicon substructure. However, little is known about the response of TiW to high temperature events or its behaviour when exposed to air. Here, a combined soft and hard X-ray photoelectron spectroscopy (XPS) characterisation approach is used to study the influence of post-deposition annealing and titanium concentration on the oxidation behaviour of a 300~nm-thick TiW film. The combination of both XPS techniques allows for the assessment of the chemical state and elemental composition across the surface and bulk of the TiW layer. The findings show that in response to high-temperature annealing, titanium segregates out of the mixed metal system and upwardly migrates, accumulating at the TiW/air interface. Titanium shows remarkably rapid diffusion under relatively short annealing timescales and the extent of titanium surface enrichment is increased through longer annealing periods or by increasing the precursor titanium concentration. Surface titanium enrichment enhances the extent of oxidation both at the surface and in the bulk of the alloy due to the strong gettering ability of titanium. Quantification of the soft X-ray photoelectron spectra highlights the formation of three tungsten oxidation environments, attributed to WO$_2$, WO$_3$ and a WO$_3$ oxide coordinated with a titanium environment. This combinatorial characterisation approach provides valuable insights into the thermal and oxidation stability of TiW alloys from two depth perspectives, aiding the development of future device technologies.
Degrees of freedom and the phase transitions of two flavor QCD
Creators: name: Kahara, T.
name: Tuominen, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study two effective models for QCD, the Nambu-Jona-Lasinio -model and the linear sigma model extended by including a Polyakov loop potential, which is fitted to reproduce pure gauge theory thermodynamics, and a coupling between the chiral fields and the Polyakov loop. Thus the resulting models have as relevant degrees of freedom the Polyakov loop and chiral fields. By comparing the extended models with the bare chiral models we can conclude that the addition of the Polyakov loop is necessary in order to obtain both qualitatively and quantitatively correct results at finite temperatures. These results are extended to finite net quark densities, several thermodynamical quantites are investigated in detail and possible applications and consequences for relativistic heavy ion collision phenomenology are discussed.
A combined spatial and technological model for the planning of district energy systems
Creators: name: Kuriyan, Kamal
name: Shah, Nilay
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2019

description: This paper describes a combined spatial and technological model for planning district energy systems. The model is formulated as a mixed integer linear program (MILP) and selects the optimal mix of technology types, sizes and fuels for local energy generation, combined with energy imports as required, and exports of any excess energy. The model can also be used to select the locations for the energy sources, the distribution route, and optionally, to select the heat loads that will be connected to a district energy system. The optimisation model combines a map-based spatial framework, describing the potential distribution network structure, with a flexible Resource Technology Network (RTN) representation which incorporates multiple heat sources. Scenarios can be formed for different price levels for delivered heat or electricity, combined heat and electricity demands, and different technologies and fuels for heat generation. Results for scenarios based on a synthesized test dataset are presented. The results illustrate how the model may be integrated within a map-based decision support tool for urban planners. The paper also introduces a system value metric to quantify the incremental impact of investments in the heat network.
description: International Journal of Sustainable Energy Planning and Management, Vol. 21 (2019)
Design of a Neural Fuzzy Damper Vibration to Improve the Stability of Electric Power Systems
Creators: name: Warkozek, Ghaith
name: Dablo, Moataz
Publisher: name: figshare
Year: 2022
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this Paper a New Design Methodology for The Vibration Damper for Synchronous Machine Depends On Adaptive Neuro Fuzzy Inference System, Is Proposed in Order to Reduce the Oscillation Voltage in Electrical System and Find Out the Effectiveness of Proposed Damper in The Stability of the System, It Was Compared with Traditionally Power System Stabilizer.The New Damper Is Based On Adaptive Neuro Fuzzy Inference System Which Process the Signal of Rotation Speed of the Generator Then Control of the Excitation of Synchronous Machine, The Designed Damper Showed Ability to Reduce Amplitude Vibrations Arising from Failures and Thus Reduce the Time of Damping by Providing Additional Effort to Signal Entered to The Excitation System, compared with A Conventional Vibration Damper and Its Performance Is Better Than a Conventional Vibration Damper.The Proposed Design Offers a Good Possibility of Further Improving the Dynamic Stability and Thus the Stability of the Electrical System.
Bosonization and Scale Invariance on Quantum Wires
Creators: name: Bellazzini, B.
name: Mintchev, M.
name: Sorba, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We develop a systematic approach to bosonization and vertex algebras on quantum wires of the form of star graphs. The related bosonic fields propagate freely in the bulk of the graph, but interact at its vertex. Our framework covers all possible interactions preserving unitarity. Special attention is devoted to the scale invariant interactions, which determine the critical properties of the system. Using the associated scattering matrices, we give a complete classification of the critical points on a star graph with any number of edges. Critical points where the system is not invariant under wire permutations are discovered. By means of an appropriate vertex algebra we perform the bosonization of fermions and solve the massless Thirring model. In this context we derive an explicit expression for the conductance and investigate its behavior at the critical points. A simple relation between the conductance and the Casimir energy density is pointed out.
description: LaTex 31+1 pages, 2 figures. Section 3.6 and two references added. To appear in J. Phys. A: Mathematical and Theoretical
Intrinsically Motivated Open-Ended Multi-Task Learning Using Transfer Learning to Discover Task Hierarchy
Creators: name: Duminy, Nicolas
name: Nguyen, Sao Mai
name: Zhu, Junshuai
name: Duhaut, Dominique
name: Kerdreux, Jerome
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In open-ended continuous environments, robots need to learn multiple parameterised control tasks in hierarchical reinforcement learning. We hypothesise that the most complex tasks can be learned more easily by transferring knowledge from simpler tasks, and faster by adapting the complexity of the actions to the task. We propose a task-oriented representation of complex actions, called procedures, to learn online task relationships and unbounded sequences of action primitives to control the different observables of the environment. Combining both goal-babbling with imitation learning, and active learning with transfer of knowledge based on intrinsic motivation, our algorithm self-organises its learning process. It chooses at any given time a task to focus on; and what, how, when and from whom to transfer knowledge. We show with a simulation and a real industrial robot arm, in cross-task and cross-learner transfer settings, that task composition is key to tackle highly complex tasks. Task decomposition is also efficiently transferred across different embodied learners and by active imitation, where the robot requests just a small amount of demonstrations and the adequate type of information. The robot learns and exploits task dependencies so as to learn tasks of every complexity.
Secondary Star Formation in a Population III Object
Creators: name: Susa, Hajime
name: Umemura, Masayuki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the possibility of subsequent star formation after a first star forms in a Pop III object, by focusing on the radiation hydrodynamic (RHD) feedback brought by ionizing photons as well as H2 dissociating photons. For the purpose, we perform three-dimensional RHD simulations, where the radiative transfer of ionizing photons and H2 dissociating photons from a first star is self-consistently coupled with hydrodynamics based on a smoothed particle hydrodynamics method. As a result, it is shown that density peaks above a threshold density can keep collapsing owing to the shielding of H2 dissociating radiation by an H2 shell formed ahead of a D-type ionization front. But, below the threshold density, an M-type ionization front accompanied by a shock propagates, and density peaks are radiation hydrodynamically evaporated by the shock. The threshold density is dependent on the distance from a source star, which is $\approx 10^2 cm^{-3}$ for the source distance of 30pc. Taking into consideration that the extent of a Pop III object is $\approx 100$pc and density peaks within it have the density of $10^{2-4}$cm$^{-3}$, it is concluded that the secondary star formation is allowed in the broad regions in a Pop III object.
description: 4pages, 2 figures, submitted to ApJ
Das globale Dorf
Creators: name: Glückler, Johannes
Publisher: name: Ruperto Carola
Year: 2022

description: Die Globalisierung erweckt den Eindruck, als seien Raum und Zeit komprimiert worden. Doch die vermeintlich verringerte Entfernung hat die Grenzen des Raums nicht aufgehoben, sondern tiefergezogen.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit
Additional file 1 of Increased ribosomal protein levels and protein synthesis in the striatal synaptosome of Shank3-overexpressing transgenic mice
Creators: name: Chunmei Jin
name: Yeunkum Lee
name: Hyojin Kang
name: Jeong, Kwon
name: Joori Park
name: Yinhua Zhang
name: Hyae Rim Kang
name: Ruiying Ma
name: Hyunyoung Seong
name: Yoonhee Kim
name: Hosung Jung
name: Kim, Jin Young
name: Kim, Yoon Ki
name: Kihoon Han
Publisher: name: figshare
Year: 2021
Subjects: Biophysics
Biochemistry
Cell Biology
Molecular Biology
Neuroscience
Developmental Biology
Hematology

description: Additional file 1: Fig. S1 Gene ontology analysis for the up-regulated (A) and down-regulated proteins (B) in the striatal synaptosome of Shank3 TG mice. Fig. S2 Gene set enrichment analysis (GSEA) for the proteomic change in the striatal synaptosome of Shank3 TG mice. Fig. S3 Puromycin (Puro.) labeling of nascent polypeptides in acute slices of the mouse striatum. CHX, cycloheximide. Materials and methods
Discussion of "EQUI-energy sampler" by Kou, Zhou and Wong
Creators: name: Wu, Ying Nian
name: Zhu, Song-Chun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Discussion of ``EQUI-energy sampler'' by Kou, Zhou and Wong [math.ST/0507080]
description: Published at http://dx.doi.org/10.1214/009053606000000506 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Kreative Krisen
Creators: name: Reents, Friederike
name: Granzow, Tanja
name: Lorenzen, Jacqueline
Publisher: name: Ruperto Carola
Year: 2022

description: Von Spaziergängen im Flussbett des Niedrigwasser führenden Rheins im Dürresommer 2018 bis zur Flutkatastrophe im Ahrtal drei Jahre später – die zunehmende Häufung extremer Wetterphänomene auch in Deutschland zeigt, dass der Klimawandel kein Phänomen der Zukunft und weit entfernter Regionen ist. Die Brüche und Übergänge, die durch die Klimakrise entstehen, werden zeitlich und regional unterschiedlich beschrieben. Ein transdisziplinäres Forschungsnetzwerk an der Universität Heidelberg hat es sich zur Aufgabe gemacht, solche Beschreibungen zu verstehen, um Handlungsspielräume, die sich aus den damit verbundenen Umbrüchen ergeben, zu erkennen und zu nutzen.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit
Additional file 3 of Increased ribosomal protein levels and protein synthesis in the striatal synaptosome of Shank3-overexpressing transgenic mice
Creators: name: Chunmei Jin
name: Yeunkum Lee
name: Hyojin Kang
name: Jeong, Kwon
name: Joori Park
name: Yinhua Zhang
name: Hyae Rim Kang
name: Ruiying Ma
name: Hyunyoung Seong
name: Yoonhee Kim
name: Hosung Jung
name: Kim, Jin Young
name: Kim, Yoon Ki
name: Kihoon Han
Publisher: name: figshare
Year: 2021
Subjects: Biophysics
Biochemistry
Cell Biology
Molecular Biology
Neuroscience
Developmental Biology
Hematology

description: Additional file 3. All raw images for entire membranes of Western blotting.
Transnational Spaces
Creators: name: Álvarez Velasco, Soledad
Publisher: name: Ruperto Carola
Year: 2022

description: As a result of new global and regional migratory patterns, migration has been on the rise across the Americas. In the past decade, two extended migratory corridors have emerged, connecting the Andean Region with Central America, Mexico and the US towards the north, and with the countries of the Southern Cone towards the south. Products of power relations around migrant mobility and control, these corridors have given rise to new geographies and new forms of mobility. How the tension between undocumented migrant mobility and reinforced border control regimes across the Americas gives rise to spatial and temporal transformations is the subject of ethnographic research carried out by scientists at the Heidelberg Center for Ibero-American Studies.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit
Biology's next revolution
Creators: name: Goldenfeld, Nigel
name: Woese, Carl
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The interpretation of recent environmental genomics data exposes the far-reaching influence of horizontal gene transfer, and is changing our basic concepts of organism, species and evolution itself.
description: Slightly expanded version of invited essay published in Nature. The most important addition is a complete set of references that could not be included in the published version due to space limitations and acknowledgment of the grant that supported our work
A countable fractal interpolation scheme involving Rakotch contractions
Creators: name: Pacurar, Cristina Maria
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28A80, 41A05, 58F12

description: The main result of this paper states that for a given countable system of data, there exists a countable iterated function system consisting of Rakotch contractions, such that its attractor is the graph of a fractal interpolation function corresponding to the given countable system of data.
Additional file 1 of CHARTS: a web application for characterizing and comparing tumor subpopulations in publicly available single-cell RNA-seq data sets
Creators: name: Bernstein, Matthew N.
name: Zijian Ni
name: Collins, Michael
name: Burkard, Mark E.
name: Kendziorski, Christina
name: Stewart, Ron
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Supplemental Methods. Description and benchmarking of malignancy score.
Unter Beobachtung
Creators: name: Höfle, Bernhard
Publisher: name: Ruperto Carola
Year: 2022

description: Rund um die Uhr beobachten Laserscanner beispielsweise das Abschmelzen von Gletschern oder kontrollieren Küstenregionen, die von Erosion betroffen sind. Dabei generieren sie riesige Datenmengen. Heidelberger Geoinformatiker*innen haben eine Methode entwickelt, die es erstmals erlaubt, die von Beobachtungssystemen erzeugte Datenflut automatisch auszuwerten. Das ist eine wichtige Voraussetzung, um vor gefährlichen Veränderungen der Erdoberfläche frühzeitig zu warnen und bislang unbekannte ursächliche Umwelteinflüsse zu identifizieren.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit
Twisted Group Rings Whose Units Form an FC-Group
Creators: name: Bovdi, Victor
Publisher: name: arXiv
Year: 2008
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 16S35; 20C07; 16U60

description: Let U be the group of units of an infinite twisted group algebra K_λG over a field K. We describe the maximal FC-subgroup of U and give a characterization of U with finitely conjugacy classes. In the case of group algebras we obtain the Cliff-Sehgal-Zassenhaus' theorem.
description: 18 pages
Auf Abstand zusammen
Creators: name: Romedio Schmitz-Esser, Romedio
Publisher: name: Ruperto Carola
Year: 2022

description: Die allgegenwärtigen Online-Meetings der Corona-Zeit sind Ausdruck eines Konflikts von Zeit und Raum, den nicht nur die akademische Welt bei der Arbeit lösen muss: Wie kann man zusammenkommen und doch zugleich möglichst großen physischen Abstand halten? Anwesenheit bei gleichzeitiger physischer Abwesenheit ist allerdings kein neues Phänomen unserer pandemischen Zeit – tatsächlich sind Absenz und die daraus folgenden Strategien der Präsenthaltung ein Thema mit langer historischer Vorgeschichte bis in das Spätmittelalter. Die historische Reflexion über Absenz und Präsenthaltung in der europäischen Vormoderne hilft daher unmittelbar bei der Kontextualisierung unserer Praktiken in der Gegenwart.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit
Accurate estimations of circumstellar and interstellar lines of quadruply ionized vanadium using the coupled cluster approach
Creators: name: Dixit, Gopal
name: Sahoo, B. K.
name: Deshmukh, P. C.
name: Chaudhuri, R. K.
name: Majumder, Sonjoy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Accurate {\it ab initio} calculations have been carried out to study the valence electron removal energies and oscillator strengths of astrophysically important electromagnetic transitions of quadruply ionized vanadium, $V^{4+}$. Many important electron correlations are considered to all-orders using the relativistic coupled-cluster theory. Calculated ionization potentials and fine structure splittings are compared with the experimental values, wherever available. To our knowledge, oscillator strengths of electric dipole transitions are predicted for the first time for most of the transitions. The transitions span in the range of ultraviolet, visible and near infrared regions and are important for astrophysical observations.
description: Submitted in Astrophysical J
Oszillierendes Pendel
Creators: name: Panagiotopoulos, Diamantis
Publisher: name: Ruperto Carola
Year: 2022

description: Archäologie ist eine Altertumswissenschaft, deren Grundlage die analytischen Kategorien von „Zeit“ und „Raum“ bilden. Bei Grabungen in Randgebieten erleben Archäologinnen und Archäologen dabei sehr häufig einen starken Gegensatz zwischen einer beeindruckenden Blütezeit einer Region in der Antike und ihrer völligen Bedeutungslosigkeit in der Neuzeit. Die wechselhafte Geschichte solcher Stätten, die über Jahrhunderte oder gar Jahrtausende hinweg zwischen Bedeutung und Bedeutungslosigkeit hin und her pendelt, ist von einem komplexen Zusammenspiel materieller und immaterieller Prozesse geprägt. Aufgabe der Archäologie ist es, diese Prozesse durch interdisziplinäres Arbeiten umfassend zu rekonstruieren.
description: Ruperto Carola, Nr. 19 (2022): Raum & Zeit