cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stellenwert der neoadjuvanten Radiochemotherapie bei lokoregional lymphangisch metastasiertem Rektumkarzinom : Analyse der onkologischen Surrogate und onkologischen Langzeitergebnisse für das cT2 Rektumkarzinom
Creators: name: Jacob, David
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2019
Subjects: subject: Mastdarmkrebs
subject: Induktionstherapie
subject: Radiochemotherapie
subject: 616.99434

description: Die Relevanz einer neoadjuvanten Radiochemotherapie bei nicht wandüberschreitend wachsenden Rektumkarzinomen der unteren zwei Drittel, mit fraglichem, lokoregionärem Lymphknotenbefall ist bisher nicht klar. 1.756 Patienten mit einem R0-resezierten cT2-M0-Rektumkarzinom der unteren zwei Drittel wurden in Abhängigkeit vom (y)pN-Status und einer erfolgten nRCTx hinsichtlich des früh-postoperativen und onkologischen Langzeit-Outcomes verglichen. Im vom Nodalstatus unabhängigem Vergleich der primär operierten Patienten gegen die vor Operation radiochemotherapierten Patienten, zeigten sich weder in der 5-J-LR- (4,6 % vs. 3,7%; p = 0,459) noch in der 5-J-Fernmetastasierungsrate (18,8% vs. 12,0%; p = 0.076) noch im 5-J-Gesamtüberleben (77,1 % vs. 84,5%; p = 0,059) signifikante Unterschiede. In den Nodalstatus abhängigen Vergleichen zeigten nodal positive Patienten mit und ohne Vorbehandlung keine Unterschiede in den 5-J-LRR (7,2 % vs. 7,3%; p = 0,096) jedoch eine signifikant höhere 5-J-LRR als die Gruppen der nodal negativen Patienten mit (2,8 %) und ohne Vorbehandlung (3,7 %). In der multivariaten Analyse blieb der histopathologisch definierte positive Nodalstatus der einzige prognostisch relevante Parameter hinsichtlich eines lokalen Tumorrezidivs (HR: 2,56). Ein genereller Vorteil durch Einsatz einer nRCTx lässt sich in der vorliegenden Analyse nicht nachweisen. Lediglich die nodal positiven Untergruppen scheinen von der Neoadjuvanz zu profitieren. Jedoch ist angesichts der eingeschränkten Genauigkeit der aktuell zur Verfügung stehenden Diagnostik eine sichere prätherapeutische Selektion dieser Patienten nicht möglich.
Low Noise and Low Power Consumption Cryogenic
Amplifiers for Onsala and Apex Telescopes
Creators: name: Risacher, Christophe
name: Sundin, Erik
name: Robles, Victor Perez
name: Pantaleev, Miroslav
name: Belitsky, Victor
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: As part of Onsala Space Observatory
instrumentation activities, several low noise, low power
consumption cryogenic amplifiers were developed for
frequencies between 2 and 9 GHz based on GaAs HEMT
MGFC4419G from Mitsubishi. Two narrow-band amplifiers
were designed, one for 3.4-4.6 GHz with 2.7 K noise
temperature and 30 dB gain, the other for 8.0-9.0 GHz with
5 K noise temperature and 26 dB gain, at 12 K ambient
temperature. A broadband amplifier for 4-8 GHz
demonstrates 5 K noise temperature and a gain of 26 dB
with 2-stages, and 34 dB with 3-stages. Lastly, a 2-4 GHz
amplifier is under current development. These amplifiers
are currently used at the Onsala 20 m and 25 m telescopes,
Sweden, both as front-end amplifiers and as IF amplifiers
for mm-wave receivers and will also be used in the new
APEX sub-millimetre telescope in Atacama Desert, Chile.
A coupled hidden Markov model for disease interactions
Creators: name: Sherlock, Chris
name: Xifara, Tatiana
name: Telfer, Sandra
name: Begon, Mike
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: To investigate interactions between parasite species in a host, a population of field voles was studied longitudinally, with presence or absence of six different parasites measured repeatedly. Although trapping sessions were regular, a different set of voles was caught at each session leading to incomplete profiles for all subjects. We use a discrete-time hidden Markov model for each disease with transition probabilities dependent on covariates via a set of logistic regressions. For each disease the hidden states for each of the other diseases at a given time point form part of the covariate set for the Markov transition probabilities from that time point. This allows us to gauge the influence of each parasite species on the transition probabilities for each of the other parasite species. Inference is performed via a Gibbs sampler, which cycles through each of the diseases, first using an adaptive Metropolis-Hastings step to sample from the conditional posterior of the covariate parameters for that particular disease given the hidden states for all other diseases and then sampling from the hidden states for that disease given the parameters. We find evidence for interactions between several pairs of parasites and of an acquired immune response for two of the parasites.
description: 25 pages, 2 figures, To appear in Journal of the Royal Statistical Society: Series C
Frontiers of III-V Compounds and Devices 0,1
Creators: name: Würfl, Joachim
name: Schlechtweg, Michael
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: The paper presents an overview on the
European status of electronic devices for micro- and mmwave
applications based on III/V compound semiconductors.
Both low noise and power devices for applications
from a few GHz up to several hundred GHz are considered
in terms of specific material and processing technologies
and of typical device results. This includes a survey on the
actual status of GaAs based HEMT and HBT devices,
metamorphic HEMT devices. Furthermore recent results
on high speed InP based HEMTs and HBTs are summarized.
Regarding power applications the potentials of mature
GaAs HBT technologies, power HEMTs and novel
GaN technologies are discussed and compared to each
other.
A Stable and Robust Calibration Scheme of the Log-Periodic Power Law Model
Creators: name: Filimonov, Vladimir
name: Sornette, Didier
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: We present a simple transformation of the formulation of the log-periodic power law formula of the Johansen-Ledoit-Sornette model of financial bubbles that reduces it to a function of only three nonlinear parameters. The transformation significantly decreases the complexity of the fitting procedure and improves its stability tremendously because the modified cost function is now characterized by good smooth properties with in general a single minimum in the case where the model is appropriate to the empirical data. We complement the approach with an additional subordination procedure that slaves two of the nonlinear parameters to what can be considered to be the most crucial nonlinear parameter, the critical time $t_c$ defined as the end of the bubble and the most probably time for a crash to occur. This further decreases the complexity of the search and provides an intuitive representation of the results of the calibration. With our proposed methodology, metaheuristic searches are not longer necessary and one can resort solely to rigorous controlled local search algorithms, leading to dramatic increase in efficiency. Empirical tests on the Shanghai Composite index (SSE) from January 2007 to March 2008 illustrate our findings.
Reprocessing a 14-year global 5km Geo-Polar blended L4 SST Using NOAA/NESDIS operational algorithms
Creators: name: Zhu, Xiaofang
Publisher: name: Zenodo
Year: 2016

description: Poster presented at the 17th GHRSST science meeting (XVII), Washington DC, USA, June 6 - 10, 2016.
Sudden singularities survive massive quantum particle production
Creators: name: Barrow, J. D.
name: Batista, A. B.
name: Dito, G.
name: Fabris, J. C.
name: Houndjo, M. J. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We solve the Klein-Gordon equation for a massive, non-minimally coupled scalar field, with a conformal coupling, undergoing cosmological evolution from a radiation-dominated phase to a future sudden singularity. We show that, after regularisation, the energy of the created particles is zero and the back-reaction from quantum effects does not change the evolution of the universe near the future singularity and cannot prevent the finite-time sudden singularity.
description: Latex file, 13 pages. New references, enlarged discussions in the Introduction and in the Conclusions and some other minor modifications. Accepted for publication in Physical Review D
Large Signal Characterization of Microwave
Power Devices
Creators: name: Teyssier, Jean-Pierre
name: Barataud, D.
name: Charbonniaud, C.
name: De Groote, Fabien
name: Mayer, Markus
name: Nébus, Jean-Michel
name: Quéré, Raymond
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: This paper presents an overview of
nonlinear measurement techniques of microwave power
devices and amplifiers. Several useful measurement
techniques of nonlinear components available in Europe are
described. Trends, especially in the area of high power and
time domain measurements, are discussed. Finally, a
summary of the TARGET measurement related tasks is
proposed, in order to show how TARGET can improve the
European capabilities in terms of nonlinear measurements.
Nonlinear Models of Microwave Power Devices and Circuits
Creators: name: Alabadelah, Ahmed
name: Fernandez, T.
name: Mediavilla, Angel
name: Nauwelaers, Bart
name: Santarelli, Alberto
name: Schreurs, Dominique
name: Tazón, Antonio
name: Traverso, Pier Andrea
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: This paper presents an overview of activities
on RF non-linear modeling of power devices and amplifiers
throughout Europe.
Additional file 1 of Triglyceride glucose-body mass index and the risk of diabetes: a general population-based cohort study
Creators: name: Wang, Xiaoyu
name: Liu, Jingdong
name: Cheng, Zongyou
name: Zhong, Yanjia
name: Chen, Xiaohua
name: Song, Wei
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplementary Table 1. Collinearity diagnostics steps.
Constellation Mapping for Physical-Layer Network Coding with M-QAM Modulation
Creators: name: Wang, Shiqiang
name: Song, Qingyang
name: Guo, Lei
name: Jamalipour, Abbas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The denoise-and-forward (DNF) method of physical-layer network coding (PNC) is a promising approach for wireless relaying networks. In this paper, we consider DNF-based PNC with M-ary quadrature amplitude modulation (M-QAM) and propose a mapping scheme that maps the superposed M-QAM signal to coded symbols. The mapping scheme supports both square and non-square M-QAM modulations, with various original constellation mappings (e.g. binary-coded or Gray-coded). Subsequently, we evaluate the symbol error rate and bit error rate (BER) of M-QAM modulated PNC that uses the proposed mapping scheme. Afterwards, as an application, a rate adaptation scheme for the DNF method of PNC is proposed. Simulation results show that the rate-adaptive PNC is advantageous in various scenarios.
description: Final version at IEEE GLOBECOM 2012
High Linearity and Efficiency Microwave PAs
Creators: name: Colantonio, P.
name: Angel Garcia, Josè
name: Giannini, Franco
name: Limiti, Ernesto
name: Malaver, Emigdio
name: Carlos Pedro, Josè
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: An overview on linearity and efficiency
performance optimisation in power amplifier (PA) is
presented, stressing the required trade-off demanded to PA
designers. For efficiency improvement, the harmonic tuning
strategies are discussed, with their advantages and major
drawbacks. For linearity improvement, the IMD sweet spot
optimisation strategies is presented as a solution to obtain low
intermodulation near PA saturated condition, resulting in
efficiency enhancement with respect to back-off approaches.
Von der Abtei der Zisterzienser zum Adelssitz der Cirksena - das ehemalige Kloster Ihlow ; archäologische Untersuchungen zur baulichen Entwicklung eines ostfriesischen Zentrums zwischen 1230 und 1744
Creators: name: Thiemann, Bernhard Heinrich
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2014
Subjects: subject: 930

description: Das Ziel dieser Arbeit ist Entwicklungslinien der Kloster- und Schlossanlage in Ihlow zu eruieren und in einen kulturhistorischen Rahmen zu stellen. Basis der Analyse sind die zwischen 2006 und 2008 durchgeführten Ausgrabungen, deren komplexe Stratigraphie eine Neubewertung der älteren Grabungen zulässt. Die Entwicklung der Anlage läßt sich in fünf mittelalterliche klösterliche Bauphasen und zwei neuzeitliche Schloßbauten gliedern. Besondere Bedeutung haben die ersten drei Bauphasen der Gründungszeit. Im überregionalen Vergleich zeigen sich Unterschiede der Baudisposition von Gründungsanlagen, wie sie bis in das 12. Jahrhundert hinein errichtet wurden, zu jenen die seit dem 12. Jahrhundert nachweisbar sind. Zustand und Veränderung der Klostergebäude im 14. und 15./frühem 16. Jahrhundert weisen deutlich Unterschiede zu den so genannten Idealplänen auf. Einerseits ist dies auf die im Spätmittelalter auftretende Veränderungen der Konventsstruktur zurückzuführen. Andererseits weist hier der Vergleich mit anderen Anlagen des Zisterzienserordens auf ein eigenes Bauschema für kleinere Anlagen hin. Für die Schlossanlagen des 16. und 17. Jahrhunderts kann ein deutlicher Funktionswandel des landesherrliches Anwesens nachgewiesen werden.
description: The aim of this study is to find the development lines of the monastery and castle complex in Ihlow and to place it in a cultural-historical framework. The analysis is based on the excavations carried out between 2006 and 2008, whose complex stratigraphy allows a re-evaluation of the older excavations. The development of the location can be divided into five medieval monastic building phases and two modern castle buildings. The first three construction phases of the founding period are particularly important. In a supra-regional comparison, differences in the construction of foundation structures, as they were built up into the 12th century, are among those which have been demonstrable since the 12th century. The condition and alteration of the monastic buildings in the fourteenth and fifteenth centuries of the sixteenth century are markedly different from the so-called ideal plans. On the one hand, this is due to changes in the structure of the convent in the Late Middle Ages. On the other hand, the comparison with other monastries of the Cistercian Order points to a separate construction plan for smaller convents. For the castle of the 16th and 17th century, a clear functional change of the landlord's estate can be demonstrated.
title: Geddes, Eric Campbell, Sir
title: Geddes, Eric Campbell, Sir
Creators: name: Phillips, Christopher
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Campbell Geddes, Eric
subject: Geddes, Eric Campbell, Sir, 1875-1937

description: Eric Geddes was the most prominent example of Britain’s deployment of businessmen in government. He was the driving force behind the reorganization of the British Expeditionary Force’s (BEF) logistics on the Western Front and the political head of the Admiralty in the final eighteen months of the war.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Application of computational methods for kinase small molecule drug discovery and design
Creators: name: Najjar, Abdulkarim
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2018
Subjects: subject: Kinase; PKMYT1; PRK1; EGFR; IGF-1R; PDGFR-β; VEDFR2; Kinaseinhibitoren; Wirkstoffforschung; computergestütztes Wirkstoffdesign
subject: kinase; PKMYT1; PRK1; EGFR; IGF-1R; PDGFR-β; VEDFR2; kinase inhibitors; computer-aided drug design; drug discovery
subject: 572

description: Die aktuelle Arbeit benutzt eine Kombination aus in silico und in vitro Screening, um neue PRK1 und PKMYT1 Inhibitoren zu identifizieren. Virtuelles Screening auf Struktur- und Ligandenbasis wurden durchgeführt, um chemische Bibliotheken nach potentiellen Inhibitoren zu durchsuchen. Außerdem wurden computergestütztes Wirkstoffdesign und Modelle (QSAR) durchgeführt, um einige Hits zu identifizieren, die PRK1 im niedrigen nanomolaren Bereich inhibieren konnten. Weiterhin wurden einige Hits identifiziert, die PKMYT1 im nanomolaren Bereich hemmen konnten. Verschiedene chemische Grundgerüste wurden daraufhin verwendet, um neuartige PKMYT1 Inhibitoren zu entwickeln. Weiterhin wurde Docking eingesetzt, um die möglichen Bindungsmodi neuer EGFR-, IGF-1R-, PDGFR-β, VEDFR2-Kinase-Inhibitoren zu untersuchen und die beobachteten biologischen Aktivitäten zu erklären. Dies ermöglichte die Entwicklung neuer Dual-Kinase-Inhibitoren, die eine inhibitorische Aktivität im niedrigen nanomolaren Bereich zeigten. Schließlich zeigten Molekulare Modellierung und computergestütztes Wirkstoffdesign eine nachgewiesene Fähigkeit, die Entwicklung neuer Kinase-Inhibitoren zu steuern und zu rationalisieren.
description: The current work used a combination of in silico and in vitro screening in order to identify novel protein kinase C-related kinase 1 (PRK1) and membrane-associated tyrosine/threonine (PKMYT1) inhibitors. Several approaches of computer-aided drug design, structure- and ligand-based virtual screening of kinase inhibitor libraries and applications of quantitative structure–activity relationship (QSAR) models were carried out to identify several hits as PRK1 inhibitors active in the low-nanomolar range. Meanwhile, few hits were found to inhibit PKMYT1 in the nanomolar range, and several chemical scaffolds were used to develop novel PKMYT1 inhibitors. Molecular docking was implemented to explore the potential binding mode of novel growth factor receptors EGFR, IGF-1R, PDGFR-β, and VEDFR2 kinase inhibitors and to rationalize the observed biological activities. This led to the development of dual kinase inhibitors active in the low-nanomolar range. In conclusion, the applied molecular modeling methods showed a proven ability to guide, and rationalize the development of novel kinase inhibitors.
Dynamical equilibration of strongly interacting "infinite" parton matter within the parton-hadron-string dynamics transport approach
Creators: name: Ozvenchuk, V.
name: Linnyk, O.
name: Gorenstein, M. I.
name: Bratkovskaya, E. L.
name: Cassing, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the kinetic and chemical equilibration in "infinite" parton matter within the parton-hadron-string dynamics off-shell transport approach, which is based on a dynamical quasiparticle model (DQPM) for partons matched to reproduce lattice QCD results-including the partonic equation of state-in thermodynamic equilibrium. The "infinite" parton matter is simulated by a system of quarks and gluons within a cubic box with periodic boundary conditions, at different energy densities, initialized slightly out of kinetic and chemical equilibrium. We investigate the approach of the system to equilibrium and the time scales for the equilibration of different observables. We, furthermore, study particle distributions in the strongly interacting quark-gluon plasma (sQGP) including partonic spectral functions, momentum distributions, abundances of the different parton species and their fluctuations (scaled variance, skewness, and kurtosis) in equilibrium. We also compare the results of the microscopic calculations with the ansatz of the DQPM. It is found that the results of the transport calculations are in equilibrium well matched by the DQPM for quarks and antiquarks, while the gluon spectral function shows a slightly different shape due to the explicit interaction of partons. The time scales for the relaxation of fluctuation observables are found to be shorter than those for the average values. Furthermore, in the local subsystem, a strong change of the fluctuation observables with the size of the local volume is observed. These fluctuations no longer correspond to those of the full system and are reduced to Poissonian distributions when the volume of the local subsystem becomes much smaller than the total volume.
description: 21 pages, 20 figures
title: Humanitarianism (Spain)
title: Humanitarianism (Spain)
Creators: name: Fuentes Codera, Maximiliano
Publisher: name: BSB - Bavarian State Library
Year: 2017
Subjects: subject: Spanien
subject: Weltkrieg [1914-1918]
subject: Neutraler Staat
subject: World War, 1914-1918--Spain
subject: Neutrality
subject: Humanitarian assistance

description: Despite Spain’s official position of neutrality during the First World War, Spanish society was divided into two sectors consisting of pro-Entente and Germanophiles. This internal division has been the focus of much of the available research and has obscured two aspects that are particularly relevant in international terms: the pacifist movement and humanitarian efforts. This article first analyzes the role of Spanish pacifist groups and their international relationships.  Secondly, it discusses the humanitarian work led by King Alfonso XIII from the ''Oficina Pro Cautivos'', which was set up in the Royal Palace in Madrid.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Zur Entladungscharakteristik und Stoffwandlung im nichtthermischen Plasma des ferroelektrischen Schüttungsreaktors
Creators: name: Rückauf, Andreas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2002
Subjects: Elektronische Publikation
Hochschulschrift
Zsfassung in engl. Sprache

description: Die vorliegende Arbeit befaßte sich mit den Entladungsbedingungen und der Oxidation flüchtiger organischer Stoffe im nichtthermischen Plasma des ferroelektrischen Schüttungsreaktors. Als Grundlage für die Bewertung der Ergebnisse dienten vergleichende Untersuchungen an einer Barrierenentladung (Ozonisator). Neben der Ermittlung entladungsspezifischer Größen wie Teilentladungsströmen und Filament-Transferladungen sowie der Beurteilung dielektrischer Verlustprozesse wurde die Elektronenenergieverteilung in beiden Reaktortypen bestimmt und Elektronenstoßprozesse mit Hilfe des Boltzmann-Solvers Bolsig simuliert. Die Ergebnisse führten zu der Erkenntnis, daß die Entladungen im ferroelektrischen Schüttungsreaktor und im Barrierenreaktor durch ähnliche mittlere Elektronenenergien und ähnliche in der Entladungszone entstehende angeregte Spezies gekennzeichnet sind. Parallel durchgeführte Untersuchungen zum Abbau organischer Stoffe zeigten, daß unter Umgebungsfeuchte beide Reaktoren etwa die gleichen Abbauergebnisse erzielen. Hervorzuheben sind jedoch die unter sehr trockenen Bedingungen im Abgas signifikant höheren Umsätze und Ausbeuten an COX im ferroelektrischen Schüttungsreaktor. Zudem zeichnet sich der Reaktor durch eine deutlich geringere Bildung von Sekundäremissionen, insbesondere von Aerosolen und Reaktorbelägen aus.
description: The presented paper contains results concerning discharge conditions in non-thermal plasma of a ferroelectric bed reactor. Furthermore the ability of the ferroelectric bed reactor to decompose volatile organic compounds was investigated. In order to allow a better interpretation of the received experimental results comparative measurement with a dielectric barrier reactor (ozone generator) were carried out. The experiments included the determination of typical discharge parameters like charge currents, transfered filament charges as well as the characterisation of dielectric loss processes. In addition to that on basis of simulations of collision processes between electrons and gas molecules (using the Boltzmann-Solver Bolsig) electron energy distribution functions where calculated. It was found that both the ferroelectric bed reactor and the dielectric barrier reactor are characterized by similar mean electron energies and by similar excited species produced in the plasma zone. Investigations to the decomposition of organic substances in non-thermal plasma led to almost identical conversions rates in both reactor types if humid gas was used. However, under very dry conditions the ferroelectric bed reactor achieved significant higher conversions and COX-yields. Furthermore the experiments showed that the ferroelectric bed reactor produces less organic byproducts especially organic aerosols and reactor coatings.
Linearisation Issues in Microwave Amplifiers
Creators: name: O’Droma, M. S.
name: Portilla, J.
name: Bertran, E.
name: Donati, S.
name: Brazil, T.
name: Rupp, M.
name: Quay, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: The European Union has established the
TARGET network of excellence (NoE) to focus on
microwave power amplifier (PA) technology research. It
aims to integrate the research resources comprised of many
research groups covering the full range of expertise in PA
technology. TARGET’S linearisation expertise covers
leading edge researchers in classical and new linearisation
techniques, including feedforward, predistortion, feedback
and envelope elimination and restoration (EER), adaptive
and non-adaptive, digital and analog, baseband, IF and RF,
together with device, circuit and system modeling and
behavioural analysis techniques. This paper reviews key
linearisation issues to be faced in evolving linearisation
solutions for future complex PA systems destined for a wide
range of advanced wireless systems.
Microwave photonics with Josephson junction arrays: negative refraction index and entanglement through disorder
Creators: name: Zueco, David
name: Mazo, Juan José
name: Solano, Enrique
name: García-Ripoll, Juan José
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study different architectures for a photonic crystal in the microwave regime based on superconducting transmission lines interrupted by Josephson junctions, both in one and two dimensions. A study of the scattering properties of a single junction in the line shows that the junction behaves as a perfect mirror when the photon frequency matches the Josephson plasma frequency. We generalize our calculations to periodic arrangements of junctions, demonstrating that they can be used for tunable band engineering, forming what we call a quantum circuit crystal. Two applications are discussed in detail. In a two-dimensional structure we demonstrate the phenomenon of negative refraction. We finish by studying the creation of stationary entanglement between two superconducting qubits interacting through a disordered media.
description: minor changes. Version to be published in Phys. Rev. B
Doliocarpus dentatus Standl.
Creators: name: Araújo, Diogo
name: Alves, Marccus
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dilleniales
Dilleniaceae
Doliocarpus
Doliocarpus dentatus

description: 39. Doliocarpus dentatus (Aubl.) Standl.
Mexico, Central America, Caribbean, Venezuela, Colombia, Ecuador, Guyanas, Bolivia, Paraguay, Brazil (from Amazonas to São Paulo) (Aymard 1998).
Selected Vouchers:—Zambana, Araújo et al. 483 (IPA, UFP).
description: Published as part of Araújo, Diogo & Alves, Marccus, 2010, Climbing plants of a fragmented area of lowland Atlantic Forest, Igarassu, Pernambuco (northeastern Brazil), pp. 1-24 in Phytotaxa 8 on page 18, DOI: 10.11646/phytotaxa.8.1.1, http://zenodo.org/record/4893863
Rejecting the frame : a qualitative analysis of documented police violence in the cases of Buddy Tavares and Robert Dziekanski
Creators: name: Nolan, Kyle Anthony
Publisher: name: University of British Columbia
Year: 2014

description: How is police violence framed in emergent forms of social documentation (i.e., news media and social media documents) and has this process altered the understanding and communication surrounding specific cases? This study uses qualitative media analysis (QMA) to answer the proposed research problem. In order to accomplish this, two video recorded, Canadian case studies were selected: Mr. Buddy Tavares and Mr. Robert Dziekanski. First, news media documents were analyzed. Secondly, a progression between news media and social media platforms was noted. This led to the identification of user-generated content (UGC), a result of social media interaction (Altheide and Schneider, 2013). The social media platforms selected for analysis, CBC news and YouTube , allow users to comment/respond to videos and online news media articles. Overall, the findings suggest that the Royal Canadian Mounted Police (RCMP) provide the initial framing of each case in the news media documents, which establishes parameters for how each case is to be understood and discussed. This is evident in both the RCMP claims referenced in the news media documents and the UGC. Furthermore, the data suggests that the online users reject the RCMP frame, through the identification and resistance to specific claims made by the RCMP in the news media documents and portrayal of events in the videos.
title: Professor Dr. Johannes Dierauer
title: 1842-1920
titleType: Subtitle
Creators: name: (:Unkn) Unknown
Publisher: name: Pochon-Jent & Bühler / Zollikofer
Year: 1920
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Dierauer, Johannes

description: Titel des Artikels aus dem St. Galler Tagblatt: Ehrung Johannes Dierauers.
description: Artikel aus Der Bund 71. Jg. Nr. 116, Zweites Blatt vom 16. März 1920 und dem St. Galler Tagblatt Jg. 80 Nr. 78, Abend-Blatt vom 1. April 1920.
InGaAs p-i-n Photodiodes for Microwave Applications
Creators: name: Malyshev, Sergei
name: Chizh, A.
name: Andrievski, Vatslav
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: The experimental and theoretical study of the
surface-illuminated InGaAs p-i-n photodiodes for such microwave applications as photonic microwave generation,
optical control of microwave circuits and optoelectronic
mixing is presented.
Effects of additives in solution crystallization
Creators: name: Jibbouri, Sattar
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2002
Subjects: Elektronische Publikation
Hochschulschrift
Zsfassung in dt. Sprache

description: In dieser Studie wird ein Flüssigbettkristallisator eingesetzt, um die Wachstum- und Auflösungrate MgSO4•7H2O und NaCl der Kristalle nachzuforschen. In den Experimenten wurden die Übersättigung, die Störstellenkonzentation und die pH-werte in der Lösung verändert. Die elektrophoretischen Mobilität Maße durch Laser-Doppler Elektrophorese (Zeta Potential Maße) für MgSO4•7H2O Kristalle berichtet. Diese Maße für anorganisches Salz sind zum ersten Mal gebildet worden und erlauben, daß die Oberflächenaufladung für MgSO4•7H2O Kristalle in ihrer gesättigten Lösung vorausgesagt wird. Folglich kann das Kennen des Oberflächenpotentials, indem es Zeta Potential mißt, helfen, die Kristallisation Phänomene zu erklären, die nicht zu jetzt aufräumen sollen. Im allgemeinen zeigen die Resultate, daß die MgSO4•7H2O Kristalle eine positive Zeta Potential Aufladung haben. Bei niedrigem pH erwirbt die Oberfläche positivere Aufladung und bei hohem pH findet ein Aufbau der negativen Aufladung statt, folglich wird das Kristallwachstum unterdrückt. In dieser Studie wurde es nachgewiesen, daß die Wachstumsraten der MgSO4•7H2O Kristalle durch Spuren der Ionen Fe+2/Ni+2 unterdrückt werden.
description: In this study a fluidized bed crystallizer is employed to investigate the growth and dissolution rate of MgSO4•7H2O and NaCl crystals. In the experiments the supersaturation, impurity concentration and pH-values in the solution were varied. The electrophoretic mobility measurements by Laser-Doppler electrophoresis (zeta-potential measurements) are reported for MgSO4•7H2O crystals. These measurements for inorganic salt have been made for the first time and allow the surface charge to be predicted for MgSO4•7H2O crystals in their saturated solution. Therefore, knowing the surface potential by measuring zeta-potential can help to explain the crystallization phenomena which are not clear up to now. In general, the results show that the MgSO4•7H2O crystals have a positive zeta-potential charge. At low pH the surface will acquire more positive charge and at high pH a build up of negative charge will take place, hence, the crystal growth is suppressed. In this study it was proven that the growth rates of MgSO4•7H2O crystals are suppressed by traces of Fe+2/Ni+2 ions.
Low temperature MBE grown GaAs for terahertz
radiation applications
Creators: name: Krotkus, A.
name: Bertulis, K.
name: Adomavicius, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: ING-INF/01 Elettronica

description: Attempts to optimize recombination
characteristics of LTG GaAs layers for their use in
terahertz (THz) radiation devices were performed.
Femtosecond laser based transient reflectivity and
optical pump – THz or mid-IR probe techniques were
employed for the electron and, respectively, hole
trapping time determination. THz range devices
manufactured from LTG GaAs layers grown and
annealed at different temperatures were investigated.
A GaAs monolithic V-band receiver for space communications
Creators: name: Payne, D.
name: Hicks, R.
name: Lamport, R.
name: Stewart, E.
name: Van Leeuwen, B.
name: Raffaelli, L.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1992
Subjects: ING-INF/01 Elettronica

description: A state-of-the-art V Band millimeter-wave agile receiver subsystem, consisting of an RF module and a phase-locked oscillator (PLO) module, has been designed, fabricated, and tested. All of the active circuits within this subsystem (with the exception of the operational amplifiers in the phase-locked loop) are GaAs MMICs. The RF module includes a 0.1 micron pseudomorphic HEMT-based LNA, a Schottky diode subharmonically pumped mixer and a 7.5 to 30 GHz LO multiplier/amplifier chain designed around a 0.25 x 400 micron power MESFET. The receiver module noise figure is 7.5 dB DSB maximum and the VSWR at the RF input port is less than 2:1. The PLO module includes a linear 7.5 GHz. VCO and other commercial MMIC chips which complete the phase-locked loop. In both modules, the MMIC chips have been assembled into light-weight, compact, laser scalable housings, making them attractive for use in space-based communication systems. In addition, the MMIC components have been put through and have passed a full round of radiation testing, including exposure to gamma and x-ray transient dose rates of 3 x 1012 and 5 x 1012 RAD(Si)/sec, respectively, as well as neutron and total dose tests.
The definition of multipartite nonlocality
Creators: name: Bancal, Jean-Daniel
name: Barrett, Jonathan
name: Gisin, Nicolas
name: Pironio, Stefano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a multipartite setting, it is possible to distinguish quantum states that are genuinely $n$-way entangled from those that are separable with respect to some bipartition. Similarly, the nonlocal correlations that can arise from measurements on entangled states can be classified into those that are genuinely $n$-way nonlocal, and those that are local with respect to some bipartition. Svetlichny introduced an inequality intended as a test for genuine tripartite nonlocality. This work introduces two alternative definitions of $n$-way nonlocality, which we argue are better motivated both from the point of view of the study of nature, and from the point of view of quantum information theory. We show that these definitions are strictly weaker than Svetlichny's, and introduce a series of suitable Bell-type inequalities for the detection of 3-way nonlocality. Numerical evidence suggests that all 3-way entangled pure quantum states can produce 3-way nonlocal correlations.
description: Appendix uploaded
Assessing midges as paleoecological indicators
Creators: name: Dickson, Travis
Publisher: name: University of British Columbia
Year: 2014

description: Three exclusive studies (in-vitro, observational and empirical) comprise this doctorate dissertation aimed at assessing the capacity of midges (Order Diptera: Families Chironomidae, Chaoboridae and Ceratopogonidae) as paleoecological indicators. In-vitro experiments were conducted to determine the impact that temperature and salinity have on midge development and survival. Results indicate that some taxa may achieve optimal development at cooler temperatures; most taxa are cued for emergence by, and require, warmer temperatures; exposure to temperatures that are too warm may result in developmental stress and sometimes death; midge emergence events appear more or less synchronous; and emergences may be controlled by a threshold temperature as opposed to accumulated degree-days. Also, in-vitro experiments were conducted to assess larval midge salinity thresholds (LD50s). Dasyhelea (Ceratopogonidae), Cricotopus/Orthocladius, and Cladotanytarsus mancus type appeared to have the highest salinity LD50s while Chironomus anthracinus type and subtribe Tanytarsina displayed the lowest. In the second study, water chemistry and environmental data were compared with midge assemblage data using multivariate analysis to assess the environmental gradients that limit midge distributions in the Hudson Bay Lowlands (northeastern Manitoba). The results demonstrate the midges’ potential as paleosalinity indicators. The third study involved extracting sediment cores from four separate lakes within the Hudson Bay Lowlands, each extracted from a pond at a different elevation (range from 127 to 10 m above sea level) and distance from the current Hudson Bay shoreline (range from 104 to 2.5 km). My reconstructions suggest that two inland ponds experienced an initial gradual freshening trend from their inception to <1,000 cal. years BP, followed by more recent rapid freshening. Reconstructions for two ponds situated proximal to Hudson Bay indicate stable salinity through the entirety of the sediment records. Quantitative salinity reconstructions for each of the four sampled ponds were ‘statistically insignificant’ (P ≤ 0.05). Predicted isostatic rebound rates, inferred by linear extrapolation of age depth models constructed for four Hudson Bay Lowland ponds, do not indicate an exponentially declining salinity trend as expected.
Synthesis, single crystal X-ray analysis, and vibrational spectral studies of 5,6-dibromo-11,12,13,14-tetrahydro-15-oxa-10b,14a-diaza-11,14-methanodibenzo[b,h]cycloocta[jkl]-as-indacene
Creators: name: Dai, Hong-Yu
name: Liao, Wan-Peng
name: Wu, Feng
name: Zhou, Zhi-Xu
name: Huang, Zhu-Yan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: The indole skeleton is an important structural unit in pharmaceutical applications. In this study, a target compound with a broad range of biological activities was synthesized and structurally characterized by spectroscopy. In addition, X-ray was used to verify the single crystal structure of the compound. Further research shows that the compound crystal structure calculated and optimized by DFT is highly consistent with the crystal structure obtained by X-ray single crystal diffraction. Finally, the molecular electrostatic potential and frontier molecular orbitals of the target compound are studied through DFT calculations, and some physical and chemical properties of the compound are revealed.
Untersuchungen an Gläsern des Systems CaF2-Al203-Si02 und daraus hergestellten Glasionomerzementen
Creators: name: Friede, Niels
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2002
Subjects: Elektronische Publikation
Zsfassung in engl. Sprache

description: Glasionomerzemente sind Verbundwerkstoffe aus Glaspartikeln in einer Polymermatrix. Sie sind in der Zahnmedizin eine Alternative zu Amalgam als Zahnrestaurationsmaterial, erreichen aber noch nicht die Festigkeitswerte der Amalgame. Besonders im Falle großflächiger Füllungen verhindert dies die Anwendung. Verwendung finden Glasionomerzemente vor allen Dingen als temporäres Füllungsmaterial, Befestigungszement oder zur Fissurenversiegelung. Auch als Knochenzement oder in der veterinärmedizinischen Forschung sind sie Gegenstand wissenschaftlicher Untersuchungen. Um die Merkmale der Glasionomerzemente gezielt modifizieren zu können, wurden Gläser des Systems SiO2-Al2O3-CaF2 mit systematisch variierter Zusammensetzung hergestellt und bezüglich Struktur und Eigenschaften, etwa Auflösungs- und Reaktionsverhalten, untersucht. Der Vergleich von Druckfestigkeiten der hergestellten Glasionomerzemente mit den Korrosionseigenschaften der Gläser soll die Wahl einer optimalen Glaszusammensetzung erleichtern.
description: Glass-ionomer cements are composite materials consisting of particles of glass in a polymer matrix which can be used for the repair and filling of teeth. The strength of these cements is however generally inferior to those of the amalgam. One aim of this study was the characterization of calcium alumofluorosilicate glasses with respect to basic properties (density, refractive index) and their reaction with a polycarboxylic acid to glass-ionomer cement. Within the CaF2-Al2O3-SiO2 system 22 glasses with different compositions have been molten. The glasses were also characterized with respect to their thermal behavior. Furthermore, the corrosion behaviour of the glasses was investigated with three different solutions. In the second part of this study the correlation between the properties of the glasses and the glass-ionomers was investigated. A particularly important property of glass-ionomer cements is their strength. The measurement of their respective strength was carried out in accordance with ISO 9917. The specimens were stored in water until being tested. The specimens tested destructively. Furthermore, the glass-ionomers were investigated with an optical light microscope, scanning electron microscope and environmental scanning electron microscope.
New Compactifications of Eleven Dimensional Supergravity
Creators: name: Imaanpur, Ali
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using canonical forms on S^7, viewed as an SU(2) bundle over S^4, we introduce consistent ansatze for the 4-form field strength of eleven-dimensional supergravity and rederive the known squashed, stretched, and the Englert solutions. Further, by rewriting the metric of S^7 as a U(1) bundle over CP^3, we present yet more general ansatze. As a result, we find a new compactifying solution of the type AdS_5\times CP^3, where CP^3 is stretched along its S^2 fiber. We also find a new solution of AdS_2\times H^2\times S^7 type in Euclidean space.
description: 15 pages, revised sec. 4, included new CP^3 and S^7 compactifications, published version
Histologische Auswertung einer tierexperimentellen Studie zur Integration von Hybridsystemen aus Polyethylen und autologen Zellen in das Umgebungsgewebe
Creators: name: Markwart, Annekatrin
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2013
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: 611

description: In dieser Studie sollten durch Bildung eines Hybridsystems, bestehend aus porösem Polyethylen (Medpor) und autologen Knorpelzellen, Abwehrreaktionen unterdrückt und die Integration in das Umgebungsgewebe verbessert werden. 75 Tieren wurden aus der Concha Knorpelzellen entnommen und auf PE bzw. oberflächenmodifiziertes PE ausgesät. Die besiedelte Probe wurde in ein Ohr implantiert. Eine in gleicher Weise modifizierte, aber unbesiedelte Probe wurde als Kontrolle kontralateral implantiert. Nach 1, 6 und 12 Monaten wurden die Implantate histologisch aufgearbeitet. Mikroskopisch zeigten besonders die 6- und 12-Monats-Tiere deutliche Unterschiede. Die vorbesiedelten Proben zeigten ein gutes Knorpelwachstum und bessere Integration in umliegendes Gewebe. Die Studie zeigt dass eine Besiedlung von Polyethylen-Implantaten mit autologen Chondrozyten positive Effekte hinsichtlich der geringeren Abwehrreaktionen, der besseren Integration in das Umgebungsgewebe sowie die Neubildung von Knorpel hat.
description: In this study we tried by creating a hybridsystem, consisting of porous polyethylene (Medpor®) and autologous chondrocytes, to minimize implantation complications and to maximize the integration into surrounding tissue. We took chondrocytes from the concha of 75 guineapigs and seeded polyethylene (PE)- respectively surface-modificated PE-samples. One seeded PE-sample was implanted into the ear of the animal, another one with the same modifications but unseeded was implanted into the contralateral ear. After 1, 6, and 12 months we removed these samples plus surrounding tissue. The microscopic examination showed especially in the 6- and 12- months samples enormous differences. The pre-seeded specimens showed a good growth of neo-cartilage and a better integration into surrounding tissue. This study shows that a bioshell of autologous chondrocytes around porous polyethylene results in a lower foreign body reaction, a better integration into surrounding tissue and a good growth of neo-cartilage.
InP-based devices and circuits for high performance microwave/millimeter wave applications
Creators: name: Greiling, Paul T.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1992
Subjects: ING-INF/01 Elettronica

description: InP-based (AlInAs/GaInAs) high election mobility transistors (HEMTs) and heterojunction bipolar transistors (HBTs) have demonstrated a substantial performance improvement over GaAs-based devices, HEMTS with extrinsic fT's over 300 GHz, fmax  over 400 GHz, and amplifiers with extremely low noise figures and high associated gain (NF <0.7 dB, Gassoc 12 dB at 12 GHz and NF <1.8 dB, Gassoc 6 dB at 60 GHz) have been achieved. HBTs have exhibited f-r-'s exceeding 130 GHz with fmax of 80 GHz. Digital and analog ICs have shown state-of-the-art performance: a 36 GHz divide by 4, a 9 GHz 8/9 dual modulus divider, a 16 GHz active mixer, and a dc coupled feedback amplifier with 33 GHz bandwidth. The status of these device technologies for high performance microwave and millimeter-wave applications is discussed.