cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Grain growth signatures in the protoplanetary discs of Chamaeleon and Lupus
Creators: name: Ubach, Catarina
name: Maddison, Sarah T.
name: Wright, Christopher M.
name: Wilner, David J.
name: Lommen, Dave J. P.
name: Koribalski, Baerbel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present ATCA results of a 3 and 7 mm continuum survey of 20 T Tauri stars in the Chamaeleon and Lupus star forming regions. This survey aims to identify protoplanetary discs with signs of grain growth. We detected 90% of the sources at 3 and 7 mm, and determined the spectral slopes, dust opacity indices and dust disc masses. We also present temporal monitoring results of a small sub-set of sources at 7, 15 mm and 3+6 cm to investigate grain growth to cm sizes and constrain emission mechanisms in these sources. Additionally, we investigated the potential correlation between grain growth signatures in the infrared (10 μm silicate feature) and millimetre (1-3 mm spectral slope, α). Eleven sources at 3 and 7 mm have dominant thermal dust emission up to 7 mm, with 7 of these having a 1-3 mm dust opacity index less than unity, suggesting grain growth up to at least mm sizes. The Chamaeleon sources observed at 15 mm and beyond show the presence of excess emission from an ionised wind and/or chromo- spheric emission. Long-timescale monitoring at 7 mm indicated that cm-sized pebbles are present in at least four sources. Short-timescale monitoring at 15 mm suggests the excess emission is from thermal free-free emission. Finally, a weak correlation was found between the strength of the 10 \mum feature and α, suggesting simultaneous dust evolution of the inner and outer parts of the disc. This survey shows that grain growth up to cm-sized pebbles and the presence of excess emission at 15 mm and beyond are common in these systems, and that temporal monitoring is required to disentangle these emission mechanisms.
description: 31 pages, 13 figures, 11 tables, accepted for publication in MNRAS
Additional file 2 of Uncovering the gene regulatory network of type 2 diabetes through multi-omic data integration
Creators: name: Liu, Jiachen
name: Liu, Shenghua
name: Yu, Zhaomei
name: Qiu, Xiaorui
name: Jiang, Rundong
name: Li, Weizheng
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2. GO and KEGG analysis of sunitinib target genes. (A-C) The results of GO were presented by bubble charts. (D) Bubble graphs showed the enrichment results of the KEGG pathways.
title: Jò Hymenæe! Sive Carmen Epithalamium, Quo Viro ... Dn. Maximiliano Percelli Liberalium artium & Philosophiæ Doctori ...
Creators: name: Otho, Georg
Publisher: name: Philipps-Universität Marburg
Year: 2025
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher
Festschrift

description: Elektronische Reproduktion von: Jò Hymenæe! Sive Carmen Epithalamium, Quo Viro ... Dn. Maximiliano Percelli Liberalium artium & Philosophiæ Doctori ... Collegæ Atq[ue] Amico Suo ... Novam Et ... Virginem Dn. Justinam ... Dn. Johann. Conradi Hast/ Juris Consulti ... Filiam Primo mensis Novembris Anno M.DC.LXXXVII. solemni festivitate ... Sincerè gratulari voluit debuit Georgius Otho, Phil. Doct. Græcæ & Orientall. Lingg. ... Acad. Bibliothecarius. - Marbvrgi : Typis Johannis Henrici Stockii, [1687]. - 8 ungezählte Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 19. - 
Bemerkungen: Text überwiegend in deutscher Sprache. - 
Erscheinungsjahr nach der Datierung im Haupttitel angenommen. - 
(Hassiaca)

Digitalisiert 2024
title: Κατασκευή καλουπιού με κατεργασία φραιζαρίσματος και παράλληλη αποπεράτωση με χάραξη με laser
Creators: name: Παρθενάκη Άννα-Μαρία
Publisher: name: Technical University of Crete
Year: 2013

description: Μη διαθέσιμο
title: Dem Hoch-Wol-Ehrwürdigen und Hochgelahrten Hrn. Caspar Friederich Pfeiln Der Heil. Schrifft Licentiaten, ... Seelsorgern der Christlichen Gemeine zu Petershagen Jtzo Bräutigammen: So dann Dessen ... Braut ... Christinen Beaten Bodinæ Wünschet Bey ihrem ... zu Rinteln gefeirten Hochzejt-Fest All das jenige Wolwesen ... Ein guter Freund; ...
Creators: name: Anonym
Publisher: name: Philipps-Universität Marburg
Year: 2025
Subjects: Festschrift
Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: Dem Hoch-Wol-Ehrwürdigen und Hochgelahrten Hrn. Caspar Friederich Pfeiln/ Der Heil. Schrifft Licentiaten, ... Seelsorgern der Christlichen Gemeine zu Petershagen/ Jtzo Bräutigammen: So dann Dessen ... Braut/ Der ... Jungfer Christinen Beaten Bodinæ/ Wünschet Bey ihrem am 6. und 7. Maji des 1673. Jahrs zu Rinteln gefeirten Hochzejt-Fest/ All das jenige Wolwesen ... Ein guter Freund; ... - Rjnteln : gedruckt von Godtf. Caspar Wächtern/ Acad. Typ., [1673]. - 4 ungezählte Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 19. - 
Bemerkungen: Erscheinungsjahr nach der Datierung im Haupttitel angenommen. - 
Umlaute mit übergestelltem "e" dargestellt. - 
(Hassiaca)

Digitalisiert 2024
Floer theory and reduced cohomology on open manifolds
Creators: name: Groman, Yoel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D40 (Primary), 32P05 (Secondary)

description: We construct Hamiltonian Floer complexes associated to continuous, and even lower semi-continuous, time dependent exhaustion functions on geometrically bounded symplectic manifolds. We further construct functorial continuation maps associated to monotone homotopies between them, and operations which give rise to a product and unit. The work rests on novel techniques for energy confinement of Floer solutions as well as on methods of Non-Archimedean analysis. The definition for general Hamiltonians utilizes the notion of reduced cohomology familiar from Riemannian geometry, and the continuity properties of Floer cohomology. This gives rise in particular to localized Floer theory. We discuss various functorial properties as well as some applications to existence of periodic orbits and to displaceability.
description: To appear in Geometry & Topology. Changes rel V6: Added Lemmas 6.16, 6.17 which were previously remarks without proofs. Corrected some typos and minor issues
Monte Carlo simulations of the photospheric emission in GRBs
Creators: name: Bégué, D.
name: Siutsou, I. A.
name: Vereshchagin, G. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We studied the decoupling of photons from ultra-relativistic spherically symmetric outflows expanding with constant velocity by means of Monte-Carlo (MC) simulation. For outflows with finite width we confirm the existence of two regimes: photon thick and photon thin introduced recently by Ruffini, Siutsou, Vereshchagin (2011), hereafter RSV. The probability density function of photon last scattering is shown to be very different in these two cases. We also obtained spectra as well as light curves. In photon thick case, the time integrated spectrum is much broader than the Planck function and its shape is well described by the fuzzy photosphere approximation introduced by RSV. In the photon thin case we confirm the crucial role of photon diffusion, hence the probability density of decoupling has a maximum near the diffusion radius, well below the photosphere. Its spectrum has Band shape. It is produced when the outflow is optically thick and its peak is formed at diffusion radius.
description: 6 pages, 9 figures, accepted to ApJ. Correction of typos in formulae 4 and 7
Discovery of two simultaneous non-harmonically related Quasi-Periodic Oscillations in the 2005 outburst of the black-hole binary GRO J1655-40
Creators: name: Motta, S.
name: Homan, J.
name: Muñoz-Darias, T.
name: Casella, P.
name: Belloni, T. M.
name: Hiemstra, B.
name: Mèndez, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We studied the low-frequency quasi-periodic oscillations (LFQPOs) in the black hole GRO J1655-40 during the 2005 outburst, using data from the Rossi X-ray Timing Explorer. All LFQPOs could be identified as either type B or type C using previously proposed classification schemes. In the soft state of the outburst the type-C LFQPOs reached frequencies that are among the highest ever seen for LFQPOs in black holes. At the peak of the outburst, in the ultra-luminous state, the power spectrum showed two simultaneous, non-harmonically related peaks which we identified as a type-B and a type-C QPO. The simultaneous presence of a type-C and type-B QPO shows that at least two of the three known LFQPO types are intrinsically different and likely the result of distinct physical mechanisms. We also studied the properties of a broad peaked noise component in the power spectra of the ultra-luminous state. This noise component becomes more coherent with count rate and there are strong suggestions that it evolves into a type-B QPO at the highest observed count rates.
description: 14 pages, 6 figures, 2 tables, accepted for publication in MNRAS
First In-gas jet laser spectroscopy with S3-LEB
Creators: name: Ajayakumar, Anjali
Publisher: name: Zenodo
Year: 2022
Subjects: laser spectroscopy
High resolution
S3-LEB
gas-jet

description: The poster was presented at 19th International Conference on Electromagnetic Isotope Seperators and Related topics at Raon highlighting the In-gas jet/cell laser spectroscopy milestones achieved as a part of the offline commissioning of S3-LEB.
title: Φυτοεξυγίανση με το αλόφυτο Limonium cornarianum ρυπασμένων εδαφών με κάδμιο (Cd)
Creators: name: Μπλάνας Γρηγόρης
Publisher: name: Technical University of Crete
Year: 2013

description: Μη διαθέσιμο
title: Απομάκρυνση Cd2+ και Pb2+ από υδατικό διάλυμα με χρήση συνθετικού ζεολίθου, παραγόμενο από επεξεργασμένο αμιαντούχο υλικό
Creators: name: Καπένης Βασίλειος
Publisher: name: Technical University of Crete
Year: 2013

description: Μη διαθέσιμο
Repeated administrations of Mn3O4 nanoparticles cause testis damage and fertility decrease through PPAR-signaling pathway
Creators: name: Zhang, Xiao
name: Yue, Zongkai
name: Zhang, Haijun
name: Liu, Lu
name: Zhou, Xiaomeng
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: Potential health hazards of nanomaterials on male reproductive system have received raising concerns. Even though Mn3O4 nanoparticles (Mn3O4-NPs) is highly effective in clinical diagnostic and therapeutic applications of human disease, its potential toxic effect on the male reproductive system has not been reported. In this study, the testis damage and fertility decrease of male rats were conducted to testify the experimental reproductive injury induced by Mn3O4-NPs. After repeated tail vein injection with 10 mg/kg/week Mn3O4-NPs for 0, 60 and 120 days, Mn3O4-NPs accumulated in the testes resulted in oxidative stress and disorder of normal serum sex hormones. Experiments in vivo and in vitro indicated that mitochondria-mediated cell apoptosis were triggered via oxidative stress, demonstrated by the upregulation of malondialdehyde (MDA) and the depolarization of mitochondrial membrane potential. Notably, Mn3O4-NPs significantly resulted in a reduction of the quantity/quality of sperm and finally caused astonishing fertility decrease. Our preliminary result implied that the application of Mn3O4-NPs could be a double-edged sword and careful consideration should be given to the clinical uses.
Office of Management and Budget Circular A-95: An Overview
Creators: name: Stam, Jerome M.
name: Stam, Jerome M.
Publisher: name: Unknown
Year: 1979
Subjects: subject: Community/Rural/Urban Development
subject: Public Economics
subject: Teaching/Communication/Extension/Profession
subject: Governmental aid
subject: Federal
subject: Programs
subject: Grants
subject: Coordination
subject: Review
subject: Regions
subject: Rural development

description: An overview is presented of Office of Management and Budget Circular A-95. This includes an analysis of its precursors, the circular itself, and problems and Issues relating to it--with an emphasis on the latter. Problems and issues addressed include: differing perceptions; differing evaluation criteria; coordination; coercion versus cooperation; lack of Federal agency compliance; channels of communication; clearinghouse review boards; citizen involvement; timing of reviews; difficulties with reviews relating to type of application; and workload, staff, and funding.
Reliable thermodynamic estimators for screening multicaloric materials
Creators: name: Zarkevich, Nikolai A.
name: Johnson, Duane D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Reversible, diffusionless, first-order solid-solid phase transitions accompanied by caloric effects are critical for applications in the solid-state cooling and heat-pumping devices. Accelerated discovery of caloric materials requires reliable but faster estimators for predictions and high-throughput screening of system-specific dominant caloric contributions. We assess reliability of the computational methods that provide thermodynamic properties in relevant solid phases at or near a phase transition. We test the methods using the well-studied B2 FeRh alloy as a "fruit fly" in such a materials genome discovery, as it exhibits a metamagnetic transition which generates multicaloric (magneto-, elasto-, and baro-caloric) responses. For lattice entropy contributions, we find that the commonly-used linear-response and small-displacement phonon methods are invalid near instabilities that arise from the anharmonicity of atomic potentials, and we offer a more reliable and precise method for calculating lattice entropy at a fixed temperature. Then, we apply a set of reliable methods and estimators to the metamagnetic transition in FeRh (predicted $346 \pm 12$ K, observed $353 \pm 1$ K) and calculate the associated caloric properties, such as isothermal entropy and isentropic temperature changes.
description: 37 pages, 8 figures, 3 tables, 133 references
Additional file 3 of Uncovering the gene regulatory network of type 2 diabetes through multi-omic data integration
Creators: name: Liu, Jiachen
name: Liu, Shenghua
name: Yu, Zhaomei
name: Qiu, Xiaorui
name: Jiang, Rundong
name: Li, Weizheng
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. RT-qPCR analysis of CD74. (A-H) The RT-qPCR process results of CD74.
ADER-WENO Finite Volume Schemes with Space-Time Adaptive Mesh Refinement
Creators: name: Dumbser, Michael
name: Zanotti, Olindo
name: Hidalgo, Arturo
name: Balsara, Dinshaw S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present the first high order one-step ADER-WENO finite volume scheme with Adaptive Mesh Refinement (AMR) in multiple space dimensions. High order spatial accuracy is obtained through a WENO reconstruction, while a high order one-step time discretization is achieved using a local space-time discontinuous Galerkin predictor method. Due to the one-step nature of the underlying scheme, the resulting algorithm is particularly well suited for an AMR strategy on space-time adaptive meshes, i.e.with time-accurate local time stepping. The AMR property has been implemented 'cell-by-cell', with a standard tree-type algorithm, while the scheme has been parallelized via the Message Passing Interface (MPI) paradigm. The new scheme has been tested over a wide range of examples for nonlinear systems of hyperbolic conservation laws, including the classical Euler equations of compressible gas dynamics and the equations of magnetohydrodynamics (MHD). High order in space and time have been confirmed via a numerical convergence study and a detailed analysis of the computational speed-up with respect to highly refined uniform meshes is also presented. We also show test problems where the presented high order AMR scheme behaves clearly better than traditional second order AMR methods. The proposed scheme that combines for the first time high order ADER methods with space--time adaptive grids in two and three space dimensions is likely to become a useful tool in several fields of computational physics, applied mathematics and mechanics.
description: With updated bibliography information
Exploration of the iron chelator deferasirox : a multifaceted platform for the development of antineoplastic agents and water-soluble sensors
Creators: name: Steinbrueck, Axel
name: 0000-0001-6014-3204
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Chelation
Cancer
Transition metals
Iron
Fluorescence
Aggregation induced emission
Sensor
Water soluble

description: Chelators have gained considerable interest due to the wide range of potential applications for this class of molecules, including as therapeutics and chemosensors. Over recent decades, a number of metal chelators have successfully demonstrated cytotoxicity and targeted activity against cancer in vitro, in vivo and in preliminary clinical trials. Considering these promises, during my dissertation I have explored the strategic derivatization of the clinical iron chelator deferasirox with focus on the preparation of chelators that show enhanced activity against cancer cells. In addition, I have investigated the optimization of deferasirox as chemosensor for Fe³⁺ in water samples. In chapter 1, an overview on the recent progress in the use of transition metal chelators, pro-chelators, and ionophores as potential cancer chemotherapeutics is provided. This chapter focuses on the reported agents that are able to coordinate iron, copper, and zinc. Chapter 2 describes the design, synthesis, and biological evaluation of strategically functionalized derivatives of the FDA approved iron chelator deferasirox. Preparative efforts focused on derivatives containing organelle-targeting moieties and their in vitro activity against A549 lung cancer cells is discussed. In contrast to the parent chelator deferasirox, several of the new derivatives could be traced inside cells through fluorescent cell imaging. One of the derivatives exerted improved antiproliferative activity relative to deferasirox and was revealed to preferentially localises within the lysosome. Chapter 3 discusses the evaluation of deferasirox as colorimetric chemosensor for the detection and quantification of Fe³⁺ in aqueous samples. The optimization of deferasirox and the water-soluble, non-toxic derivative ExSO₃H are discussed. In addition, ExSO₃H was identified as potential chelator for uranyl (UO₂²⁺) in water and the interaction between these two species was investigated. Chapter 4 discusses the observation that a fluorescent turn-on response was produced when a water-soluble deferasirox derivative was allowed to interact with human serum albumin (HSA). This fluorescence was quenched in the presence of Fe³⁺, thus permitting the monitoring of the presence of this biologically important metal cation with a protein-bound chelator.
Constructive proof of the Kerr-Newman black hole uniqueness: derivation of the full solution from scratch
Creators: name: Meinel, Reinhard
name: Richter, René
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Kerr-Newman black hole solution can be constructed straightforwardly as the unique solution to the boundary value problem of the Einstein-Maxwell equations corresponding to an asymptotically flat, stationary and axisymmetric electro-vacuum spacetime surrounding a connected Killing horizon.
description: 3 pages, contribution to the Proceedings of the Thirteenth Marcel Grossmann Meeting on General Relativity (Stockholm, July 1-7, 2012)
Atomic motion in solids with dimpled potentials
Creators: name: Zarkevich, N. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Polymorphic solids of the same chemical composition can have different atomic structures; in each polymorph atoms vibrate around a local potential energy minimum (LPEM). If transformations to other structures have sufficiently high enthalpy barriers, then each polymorph is either stable or metastable; it is stationary and does not spontaneously change with time. But what happens, if those barriers are low? As examples, we consider NiTi shape memory alloy exhibiting a large elastocaloric effect, and selected elemental solids. We suggest a model for dynamically polymorphic solids, where multiple LPEMs are visited by ergodic motion of a single atom. We predict that upon cooling a dynamically polymorphic phase should undergo a symmetry-breaking first-order phase transition, accompanied by a finite change of the lattice entropy. We discuss 3 methods used to calculate phonons in solids with non-harmonic dimpled atomic potentials, and compare theoretical predictions to experiment.
description: 11 pages, 12 figures
End-to-end drilling optimization using machine learning
Creators: name: Hegde, Chiranth Manjunath
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Drilling optimization
Machine learning
Data science
Random forests
Coupled model
Classification
Vibrations
ROP
MSE

description: Drilling costs occupy a significant portion of oil and gas project’s budget. Optimization of drilling - increasing speed, reducing vibrations, and minimizing borehole instability - can lead to significant savings and hence have been extensively studied. Currently, most drilling optimization tools (or models) only tackle a single drilling metric: they seek to optimize either the rate of penetration (ROP), torque on bit (TOB), mechanical specific energy (MSE) or drilling vibrations. Models are often built independent of other metrics (without coupling) and do not accurately represent downhole conditions since drilling metrics are interrelated. This may lead to over or underestimation of the metric optimized which can severely reduce the effect of optimization. The objective of this dissertation is to introduce techniques, strategies, and algorithms that can be used to build a fully coupled drilling optimization model. Drilling optimization is studied by first optimizing ROP– where models for ROP prediction and inference are constructed using machine learning. Strategies and algorithms for determining optimal drilling parameters using ROP models are discussed. The unique problem posed by data-driven models are solved using meta-heuristic algorithms. A coupled model is constructed by building ROP, TOB, and MSE models conjointly using the random forests algorithm. Drilling vibrations – axial, lateral, and torsional – are modeled using a machine learning classification algorithm. This classification algorithm used to restrict the optimization space, ensuring that optimal parameters do not induce vibrations ahead of the bit. This model is used to investigate the effect of optimizing ROP and MSE on field data. A workflow is introduced linking all the aforementioned models into an end-to-end drilling optimization tool. The tool can be used as a recommendation system where field-measured data are used to determine and implement optimal drilling parameters ahead of the bit. The dissertation illustrates the use of statistical (or machine) learning techniques to address the problems encountered in drilling optimization
title: Χρήση μικροσυσκευών για τη μάστευση ενέργειας
Creators: name: Στρατογιαννακος Κωνσταντινος
Publisher: name: Technical University of Crete
Year: 2014

description: Η παρούσα διπλωματική εργασία αναφέρεται στην μάστευση ενέργειας καθώς και πως επιτυγχάνεται αυτή μέσω της χρήσης συσκευών-μικροσυσκευών. Οι συσκευές αυτές, χρησιμοποιούν ό,τι μορφή ενέργειας συναντούν στο περιβάλλον τους και την μετατρέπουν σε ηλεκτρική ενέργεια, τροφοδοτώντας κατά αυτόν τον τρόπο άλλες συσκευές όπως για παράδειγμα αισθητήρες οι οποίοι δεν έχουν ή δεν μπορούν να συνδεθούν με άλλη πηγή ενέργειας. Η μαστευση επομένως μαζί με αυτές τις συσκευές, δίνουν την δυνατότητα για ύπαρξη ασυρμάτων συστημάτων σε ιδιαίτερα και δυσπρόσιτα περιβάλλοντα όπως το διάστημα , κάποια απομακρυσμένη κορυφή ενός βουνού ή και στον ίδιο τον ανθρώπινο οργανισμό. Επίσης εργασία αναφέρεται εν συντομία στα φαινόμενα μάστευσης ενέργειας όπως αυτά έχουν αναπτυχθεί έως τώρα, δίνοντας ιδιαίτερη έμφαση στο φωτοβολταϊκό και στο πιεζοηλεκτρικό φαινόμενο. Καθώς αυτά τα φαινόμενα αναλύονται, δίνονται ταυτόχρονα οι βασικές αρχές λειτουργίας τους και μερικές εφαρμογές τους που όμως αναδεικνύουν απολυτά την χρησιμότητα τους. Τέλος, αναφέρεται πως η μεσίτευση μπορεί να χρησιμοποιηθεί με απόλυτη επιτυχία στον ιατρικό τομέα, ενώ στο τελευταίο κεφάλαιο και στα συμπεράσματα γίνεται μια σύντομη σύγκριση απόδοσης των συσκευών που έχουν αναφερθεί στα προηγούμενα κεφάλαια.
Using riparian plant species to locate the 1:2-year floodline on single channel rivers
Creators: name: Reinecke, MK
name: Brown, CA
name: Esler, KJ
name: King, JM
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Riparian zones can be characterised botanically into two main areas, a wet bank and a dry bank. These areas have been linked to the duration of inundation by river flow, the boundary between the two being the 1:2 year floodline. Therefore the wet bank is inundated regularly by small floods and the dry bank by larger, less frequent floods, and each may support one to a few distinct plant communities laterally up the bank. Understanding these plant distributions helps rehabilitation projects and Environmental Flow (EFlows) studies as it can inform re-vegetation strategies in the former and help understanding of the links between plants and the river’s flow regime in the latter. Systematic sampling and data analysis methods were developed for single channel rivers with relatively undisturbed natural vegetation to identify and locate the different plant communities in the riparian zone. Generic rules using distance and height from the water’s edge, rather than the presence or absence of plant species, were calculated to locate the communities. While these statistics were derived from the riparian vegetation along perennial Western Cape rivers, South Africa, the methods could be applied to other perennial single channel river anywhere.
High-Order Discontinuous Galerkin Methods by GPU Metaprogramming
Creators: name: Klöckner, Andreas
name: Warburton, Timothy
name: Hesthaven, Jan S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Discontinuous Galerkin (DG) methods for the numerical solution of partial differential equations have enjoyed considerable success because they are both flexible and robust: They allow arbitrary unstructured geometries and easy control of accuracy without compromising simulation stability. In a recent publication, we have shown that DG methods also adapt readily to execution on modern, massively parallel graphics processors (GPUs). A number of qualities of the method contribute to this suitability, reaching from locality of reference, through regularity of access patterns, to high arithmetic intensity. In this article, we illuminate a few of the more practical aspects of bringing DG onto a GPU, including the use of a Python-based metaprogramming infrastructure that was created specifically to support DG, but has found many uses across all disciplines of computational science.
description: To appear as part of "GPU Solutions to Multi-scale Problems in Science and Engineering", http://books.google.com/books?vid=9783642164040
Probing sub-galactic mass structure with the power spectrum of surface-brightness anomalies in high-resolution observations of galaxy-galaxy strong gravitational lenses. II.Observational constraints on the sub-galactic matter power spectrum
Creators: name: Bayer, D.
name: Chatterjee, S.
name: Koopmans, L. V. E.
name: Vegetti, S.
name: McKean, J. P.
name: Treu, T.
name: Fassnacht, C. D.
name: Glazebrook, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Stringent observational constraints on the sub-galactic matter power spectrum would allow one to distinguish between the concordance $Λ$CDM and the various alternative dark-matter models that predict significantly different properties of mass structure in galactic haloes. Galaxy-galaxy strong gravitational lensing provides a unique opportunity to probe the sub-galactic mass structure in lens galaxies beyond the Local Group. Here, we demonstrate the first application of a novel methodology to observationally constrain the sub-galactic matter power spectrum in the inner regions of massive elliptical lens galaxies on 1-10 kpc scales from the power spectrum of surface-brightness anomalies in highly magnified galaxy-scale Einstein rings and gravitational arcs. The pilot application of our approach to Hubble Space Telescope (HST/WFC3/F390W) observations of the SLACS lens system SDSS J0252+0039 allows us to place the following observational constraints (at the 99 per cent confidence level) on the dimensionless convergence power spectrum $Δ^{2}_{δκ}$ and the standard deviation in the aperture mass $σ_{\rm AM}$: $Δ^{2}_{δκ}<1$ ($σ_{\rm AM}< 0.8 \times 10^8 M_\odot$) on 0.5-kpc scale, $Δ^{2}_{δκ}<0.1$ ($σ_{\rm AM}< 1 \times 10^8 M_\odot$) on 1-kpc scale and $Δ^{2}_{δκ}<0.01$ ($σ_{\rm AM}< 3 \times 10^8 M_\odot$) on 3-kpc scale. These first upper-limit constraints still considerably exceed the estimated effect of CDM subhaloes. However, future analysis of a larger sample of galaxy-galaxy strong lens systems can substantially narrow down these limits and possibly rule out dark-matter models that predict a significantly higher level of density fluctuations on the critical sub-galactic scales.
description: 16 pages, 10 figures, updated and resubmitted to MNRAS together with an accompanying methodology paper in response to reviewer's comments
title: Διερεύνηση των μορφών εσωτερικής επικοινωνίας σε επιλεγμένο δείγμα επιχειρήσεων του ελληνικού χώρου - εμπειρική προσέγγιση
Creators: name: Δεδε Χριστινα
Publisher: name: Technical University of Crete
Year: 2014

description: Σε μια επιχείρηση, υπηρεσία ή οργανισμό τα δίκτυα επικοινωνίας είναι πολύπλοκα. Ένα αποτελεσματικό σύστημα επικοινωνίας βασίζεται στην ευχέρεια εξεύρεσης λύσεων, στις στάσεις των μελών τόσο μεταξύ τους όσο και απέναντι στην επιχείρηση και σε μια σειρά από παράγοντες που σχετίζονται με τις ειδικές συνθήκες κάθε επιχείρησης.
Στο πλαίσιο αυτό η σύγχρονη επιστημονική έρευνα έχει αναπτύξει διαδικασίες μέτρησης και ανάλυσης τόσο της αποτελεσματικότητας των μορφών επικοινωνίας όσο και του βαθμού ικανοποίησης του προσωπικού των επιχειρήσεων.
Σκοπός της παρούσας έρευνας είναι η συμβολή στην παραπάνω προβληματική, σε ότι αφορά τη διερεύνηση των τρόπων εσωτερικής επικοινωνίας τριών επιχειρήσεων που δραστηριοποιούνται στον ελληνικό χώρο, καθώς και τη μέτρηση του βαθμού ικανοποίησης του προσωπικού τους από αυτούς.
Η έρευνα διεξήχθη με τη χρήση γραπτών ερωτηματολογίων, τα οποία συντάχθηκαν σύμφωνα με τους κανόνες ανάπτυξης του συγκεκριμένου μέσου συλλογής ερευνητικού υλικού. Συμπληρώθηκαν 246 ερωτηματολόγια, αριθμός που καλύπτει τις στατιστικές απαιτήσεις της διαδικασίας.
Στο κεφάλαιο της μεθοδολογίας αναπτύχθηκε το υπόδειγμα της έρευνας, καθώς και η επεξεργασία και η ανάλυση των δεδομένων. Για την ανάλυση των δεδομένων χρησιμοποιήθηκε η περιγραφική στατιστική για όλες τις ερωτήσεις του ερωτηματολογίου, εκτός της ερώτησης 6 όπου χρησιμοποιήθηκε, λόγω της ειδικής μορφής της, η πολυκριτήρια ανάλυση MUSA (MUlticriteria Satisfaction Analysis). Βασικός σκοπός της μεθόδου αυτής είναι η σύνθεση των προτιμήσεων ενός συνόλου υποκειμένων (υπαλλήλων, πελατών κλπ) σε μια ποσοτική μαθηματική συνάρτηση αξιών. Πιο συγκεκριμένα, η μέθοδος υποθέτει ότι η συνολική ικανοποίηση ενός μεμονωμένου υποκειμένου εξαρτάται από ένα σύνολο μεταβλητών, οι οποίες αντιπροσωπεύουν τα χαρακτηριστικά του προσφερόμενου προϊόντος ή υπηρεσίας.
Τα αποτελέσματα της έρευνας ανέδειξαν αρκετές ομοιότητες μεταξύ των επιχειρήσεων στα συστήματα εσωτερικής επικοινωνίας αλλά και σημαντικές διαφοροποιήσεις σε επί μέρους ζητήματα. Σε ότι αφορά τις διαφοροποιήσεις, καταδείχθηκε ότι οι μικρότερες σε μέγεθος επιχειρήσεις χρησιμοποιούν λιγότερους και πιο παραδοσιακούς τρόπους εσωτερικής επικοινωνίας, με αποτέλεσμα το προσωπικό τους να είναι λιγότερο απαιτητικό και γι’ αυτό το λόγο περισσότερο ικανοποιημένο σε σχέση με το προσωπικό των μεγαλύτερων επιχειρήσεων. Επίσης, ενώ τα στελέχη των επιχειρήσεων δηλώνουν σε συντριπτικό ποσοστό ότι ενθαρρύνουν τους υφισταμένους τους στην ανάληψη ευθυνών και στη συμμετοχή στη λήψη αποφάσεων, εντούτοις οι εργαζόμενοι απαντούν σε ποσοστό 65% ότι δεν τους ζητούνται προτάσεις για θέματα που αφορούν τους στόχους ή την πορεία της επιχείρησης.
Τέλος, η εργασία ολοκληρώνεται με προτάσεις για τη βελτίωση του επικοινωνιακού πλέγματος των επιχειρήσεων, καθώς και με προτάσεις μελλοντικής και πιο εξαντλητικής διερεύνησης του θέματος.
Additional file 4 of Uncovering the gene regulatory network of type 2 diabetes through multi-omic data integration
Creators: name: Liu, Jiachen
name: Liu, Shenghua
name: Yu, Zhaomei
name: Qiu, Xiaorui
name: Jiang, Rundong
name: Li, Weizheng
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S4. RT-qPCR analysis of PSMB9. (A-H) The RT-qPCR process results of PSMB9.
Factors of startups success: To do not fail, what should startups do?
Creators: name: Bouredja, Sara
name: Bourouaha, Abdelhammid
Publisher: name: figshare
Year: 2022
Subjects: Innovation management

description: With the technological development, the appearance of the fourth technological revolution, digitalization in all sectors, and integration of artificial intelligence in different sectors. Startups appear in different sectors with the aim of growing fast and resolving the actual problems in addition to following the fast-technological development. Therefore, startups have an important role in the economies of developed counties because there plays an important role in generating new and innovative ideas with the aim of developing technological tools, innovative solutions to problems, and generating a wealth of
 economies. Following the complex environment, some startups face different obstacles and fail, however other succeed. In this paper, we try to present a theoretical overview of startups, their points of weakness, and what are the main factors of the success of a startup.
Illuminating the Primeval Universe with Type IIn Supernovae
Creators: name: Whalen, Daniel J.
name: Even, Wesley
name: Lovekin, C. C.
name: Fryer, Chris L.
name: Stiavelli, Massimo
name: Roming, P. W. A.
name: Cooke, Jeff
name: Pritchard, T. A.
name: Holz, Daniel E.
name: Knight, Cynthia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The detection of Pop III supernovae could directly probe the primordial IMF for the first time, unveiling the properties of the first galaxies, early chemical enrichment and reionization, and the seeds of supermassive black holes. Growing evidence that some Pop III stars were less massive than 100 solar masses may complicate prospects for their detection, because even though they would have been more plentiful they would have died as core-collapse supernovae, with far less luminosity than pair-instability explosions. This picture greatly improves if the SN shock collides with a dense circumstellar shell ejected during a prior violent LBV type eruption. Such collisions can turn even dim SNe into extremely bright ones whose luminosities can rival those of pair-instability SNe. We present simulations of Pop III Type IIn SN light curves and spectra performed with the Los Alamos RAGE and SPECTRUM codes. Taking into account Lyman-alpha absorption in the early universe and cosmological redshifting, we find that 40 solar mass Pop III Type IIn SNe will be visible out to z ~ 20 with JWST and out to z ~ 7 with WFIRST. Thus, even low mass Pop III SNe can be used to probe the primeval universe.
description: 17 pages, 11 figures, revised in response to the referee, submitted to ApJ
The semileptonic decays $B/B_s \to (π, K)(l^+l^-,lν,ν\barν)$ in the perturbative QCD approach beyond the leading-order
Creators: name: Wang, Wen-Fei
name: Xiao, Zhen-Jun
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we first calculate the form factors of $B \to (π,K)$ and $B_s \to K $ transitions by employing the perturbative QCD (pQCD) factorization approach with the inclusion of the next-to-leading-order(NLO) corrections, and then we calculate the branching ratios of the corresponding semileptonic decays $B/B_s \to (π, K)(l^+l^-,lν,ν\barν)$ (here $l$ denotes $e, μ$ and $τ$). Based on the numerical calculations and phenomenological analysis, we found the following results: (a) For $B \to (π, K)$ and $B_s \to K$ transition form factors $F_{0,+,\rmt}(q^2)$, the NLO pQCD predictions for the values of $F_{0,+,\rmt}(0)$ and their $q^2$-dependence agree well with those obtained from other methods; (b) For $\bar{B}^0 \to π^+l^-\barν_l, \bar{K}^0 l^+ l^- $ and $B^- \to π^0 l^-\barν_l, K^- l^+ l^-$ decay modes, the NLO pQCD predictions for their branching ratios agree very well with the measured values; (c) By comparing the pQCD predictions for $Br(\bar{B}^0 \to π^+l^-\barν_l)$ with the measured decay rate we extract out the magnitude of $V_{ub}$: $|V_{ub}|= (3.80^{+0.56}_{-0.50}(theor.)) \times 10^{-3}$; (d) We also defined several ratios of the branching ratios, $R_ν, R_C$ and $R_{N1,N2,N3}$, and presented the corresponding pQCD predictions, which will be tested by LHCb and the forthcoming Super-B experiments.
description: 21 pages, 7 figures
Classification of pointed Hopf algebras of dimension $p^2$ over any algebraically closed field
Creators: name: Wang, Linhong
name: Wang, Xingting
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16T05

description: Let $p$ be a prime. We complete the classification on pointed Hopf algebras of dimension $p^2$ over an algebraically closed field $k$. When $\text{char}k \neq p$, our result is the same as the well-known result for $\text{char}k=0$. When $\text{char}k=p$, we obtain 14 types of pointed Hopf algebras of dimension $p^2$, including a unique noncommutative and noncocommutative type.
description: 10 pages, no figures
Identifying the Information Gain of a Quantum Measurement
Creators: name: Berta, Mario
name: Renes, Joseph M.
name: Wilde, Mark M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We show that quantum-to-classical channels, i.e., quantum measurements, can be asymptotically simulated by an amount of classical communication equal to the quantum mutual information of the measurement, if sufficient shared randomness is available. This result generalizes Winter's measurement compression theorem for fixed independent and identically distributed inputs [Winter, CMP 244 (157), 2004] to arbitrary inputs, and more importantly, it identifies the quantum mutual information of a measurement as the information gained by performing it, independent of the input state on which it is performed. Our result is a generalization of the classical reverse Shannon theorem to quantum-to-classical channels. In this sense, it can be seen as a quantum reverse Shannon theorem for quantum-to-classical channels, but with the entanglement assistance and quantum communication replaced by shared randomness and classical communication, respectively. The proof is based on a novel one-shot state merging protocol for "classically coherent states" as well as the post-selection technique for quantum channels, and it uses techniques developed for the quantum reverse Shannon theorem [Berta et al., CMP 306 (579), 2011].
description: v2: new result about non-feedback measurement simulation, 45 pages, 4 figures
A facile method for the synthesis of free-standing pillar[5]arene-based two-dimensional covalent organic monolayers in solution
Creators: name: Qiang, Hui
name: Hu, Wei-Bo
name: Chen, Tao
name: Liu, Yahu A.
name: Jia, Xue-Shun
name: Jiang, Biao
name: Wen, Ke
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: This report describes a facile method by which, without using any surface-assisted growth or pre-organisation, free-standing two-dimensional (2D) covalent organic monolayers (COMs) were synthesised through condensation reactions of planar tri-aldehydes with A1/A2-diamino-substituted pillar[5]arene (DAP5). In the as-formed monolayers (DAP5-COM-1 and DAP5-COM-2), the tubular pentagonal pillar[5]arene units positioned out of the 2D polymer planes suppress efficiently the interlayer π-π stacking interactions. Both DAP5-COM-1 and DAP5-COM-2 can be transferred onto solid surfaces for further characterisation and were found to possess unusual fluorescence up-conversion property.
A protocol and tools for setting environmental water temperature guidelines for perennial rivers in South Africa
Creators: name: Dallas, Helen
name: Rivers-Moore, Nicholas
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry

description: Human activities have cumulatively altered natural thermal regimes, with impacts and occurrences of extreme events amplified and exacerbated by global climate change. This leads to cascading ecological impacts in river systems. This paper translates knowledge generated over more than ten years of thermal research in South Africa into a protocol for establishing environmental water temperature guidelines for perennial rivers in South Africa. Tools and protocols for generating thermal guidelines reflecting seasonal variation and daily ranges, setting ecologically relevant thermal targets, and approaches for incorporating water temperature into management plans are presented. Tools include a spatial (thermal) framework within which air-water temperature models are applied and reference thermographs are generated; national maps of system resilience and air-water temperature model accuracy; a database of variables likely to indicate system resilience and model accuracy; innovative tools for generating thermal metrics and thermographs; a screening process to assess thermal risk; and an evaluation process to assess thermal change based on deviation from reference or expected thermal conditions. The importance and value of thermal data was recognised by the freshwater community and collection of water temperature data strongly endorsed. Future rollout of a water temperature-monitoring programme for South Africa needs to be prioritised.
The dual origin of the nitrogen deficiency in comets: selective volatile trapping in the nebula and postaccretion radiogenic heating
Creators: name: Mousis, Olivier
name: Guilbert-Lepoutre, Aurélie
name: Lunine, Jonathan I.
name: Cochran, Anita L.
name: Waite, J. Hunter
name: Petit, Jean-Marc
name: Rousselot, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We propose a scenario that explains the apparent nitrogen deficiency in comets in a way consistent with the fact that the surfaces of Pluto and Triton are dominated by nitrogen-rich ice. We use a statistical thermodynamic model to investigate the composition of the successive multiple guest clathrates that may have formed during the cooling of the primordial nebula from the most abundant volatiles present in the gas phase. These clathrates agglomerated with the other ices (pure condensates or stoichiometric hydrates) and formed the building blocks of comets. We report that molecular nitrogen is a poor clathrate former, when we consider a plausible gas phase composition of the primordial nebula. This implies that its trapping into cometesimals requires a low disk temperature ($\sim$20 K) in order to allow the formation of its pure condensate. We find that it is possible to explain the lack of molecular nitrogen in comets as a consequence of their postformation internal heating engendered by the decay of short-lived radiogenic nuclides. This scenario is found consistent with the presence of nitrogen-rich ice covers on Pluto and Triton. Our model predicts that comets should present xenon-to-water and krypton-to-water ratios close to solar xenon-to-oxygen and krypton-to-oxygen ratios, respectively. In contrast, the argon-to-water ratio is predicted to be depleted by a factor of $\sim$300 in comets compared to solar argon-to-oxygen, as a consequence of poor trapping efficiency and radiogenic heating.
description: Accepted for publication in The Astrophysical Journal