cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Economic and policy analysis on air and rail transport
Creators: name: Jiang, Changmin
Publisher: name: University of British Columbia
Year: 2014

description: This dissertation focuses on two major topics in air and rail transportation. The first one is related to various aspects of interactions between airlines and high-speed rail (HSR). We first analyze the effects of cooperation between a hub-and-spoke airline and an HSR operator when the hub airport may be capacity-constrained (Chapter 2). We find that, as compared to the case of modal competition, such cooperation may increase or decrease social welfare, depending on modal substitutability and hub capacity. Then we study the impact of air-HSR competition on the environment and welfare (Chapter 3). We show that the introduction of HSR, even if it is more environmentally friendly than airlines on a per-seat basis, may have a net negative effect on the environment and social welfare. Lastly we investigate the long-term impacts of HSR competition on airlines (Chapter 4). We find that when HSR enters the trunk routes or increases its competitiveness, an airline will have a greater incentive to cover more regional (foreign) markets and move towards hub-and spoke network if the trunk market is larger. The second topic is related to the strategic coalitions among airlines. First we analyze the partnership formation for two competing local airlines and two global alliances (Chapter 5). We find that the equilibrium outcome depends on whether they play in a simultaneous game or a sequential game. Then we examine the strategic vertical relationship between network and regional airlines (Chapter 6). We develop a model to illustrate how network airlines can use the contractual relationship with regional airlines as an efficient tool to simultaneously drive out inefficient network airlines and also accommodate other cost efficient network airlines in any specific market. The model is tested on U.S. data using simultaneous and sequential choice models. Finally, major results of the thesis and future research directions are discussed (Chapter 7). In particular, we propose to study the general impacts of HSR projects on an economy, including urban development as well as the positive spillovers of HSR technology.
Application of the no-signaling principle to obtain quantum cloners for any allowed value of fidelity
Creators: name: Gedik, Z.
name: Çakmak, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Special relativity forbids superluminal influences. Using only the no-signaling principle and an assumption about the form of the Schmidt decomposition, we show that for "any" allowed fidelity there is a "unique" approximate qubit cloner which can be written explicitly. We introduce the prime cloners whose fidelities have multiplicative property and show that the fidelity of the prime cloners for the infinite copy limit is 1/2.
description: 8 pages, no figures
Additional file 4 of Comparison of the duration of viral RNA shedding and anti-SARS-CoV-2 spike IgG and IgM antibody titers in COVID-19 patients who were vaccinated with inactivated vaccines or not: a retrospective study
Creators: name: Xu, Chuancai
name: He, Zhisong
name: Lei, Wei
name: Chen, Li
name: Shen, Dan
name: Wang, Xiaofei
name: Xu, Deyu
name: Xu, Ying
name: Huang, Jian’an
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 4: Table S4. Proportions of abnormal level of IL-6, lymphocyte count, LDH, and D-dimmer in the three groups.
Water Quality Monitoring Integrated Multi-Trophic Aquaculture IMTA-aquaponics System Based on IoT
Creators: name: Goda, Ashraf
Publisher: name: Zenodo
Year: 2023

description: Water Quality Monitoring Integrated Multi-Trophic Aquaculture IMTA-aquaponics System Based on IOT
description: Acknowledgments: The HortiMED project (Grant Number 1915) is part of the PRIMA Programme supported by the European Union.
Pattern formation in intracortical neuronal fields
Creators: name: Hutt, Axel
name: Bestehorn, Michael
name: Wennekers, Thomas
Publisher: name: Weierstrass Institute
Year: 2003
Subjects: subject: Neural fields
subject: nonlinear integral equations
subject: propagation delay
subject: bifurcat ion analysis
subject: pattern formation
subject: 92C20
subject: 45G10
subject: 87.10.+e
subject: 05.65.+b
subject: 05.70.Jk

description: The present article introduces a neuronal field model for both excitatory and inhibitory connections. A single integro-differential equation with delay is derived and studied at a critical point by stability analysis, which yields conditions for static periodic patterns and wave instabilities. It turns out that waves only occur below a certain threshold of the activity propagation velocity. An additional brief study exhibits increasing phase velocities of waves with decreasing slope subject to increasing activity propagation velocities, which are in accordance to experimental results. Numerical studies near and far from instability onset supplement the work.
Renormalization in the Three-body Problem with Resonant P-wave Interactions
Creators: name: Braaten, Eric
name: Hagen, P.
name: Hammer, H. -W.
name: Platter, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Resonant P-wave interactions can be described by a minimal zero-range model defined by a truncated effective range expansion, so that the only 2-body interaction parameters are the inverse scattering volume 1/a_P and the P-wave effective range r_P. This minimal model can be formulated as a local quantum field theory with a P-wave interaction between atom fields and a molecular field. In the two-atom sector, the model is renormalizable, but it has unphysical behavior at high energies, because there are negative-probability states with momentum scale r_P. In the sector with three atoms, two of which are identical, renormalization in some parity and angular-momentum channels involves an ultraviolet limit cycle, indicating asymptotic discrete scale invariance. The Efimov effect occurs in the unitary limit a_P^(-1/3), r_P \to 0, but this limit is unphysical because there are low-energy states with negative probability. The minimal model can be of physical relevance only at energies small compared to the energy scale set by r_P, where the effects of negative-probability states are suppressed.
description: 16 pages, 3 figures, major changes in interpretation of results, final version
L'alea e il contratto aleatorio: dalla nozione di rischio alla costruzione della categoria (Prima parte)
Creators: name: Belli, Guido
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: IUS/01 Diritto privato

description: SOMMARIO: 1. Il significato comune della parola alea e l’agire a proprio rischio: l’inidoneità di una nozione astratta. – 2. L’alea e il periculum nel diritto romano classico. L’indagine sull’allocazione del rischio contrattuale e le riflessioni dommatiche sull’emptio spei.  – 3. L’evoluzione dell’idea di contratto aleatorio: verso la costruzione di una categoria unitaria. Il processo di affermazione del principio dello iustum pretium e della clausola rebus sic stantibus.
Additional file 6 of Comparison of the duration of viral RNA shedding and anti-SARS-CoV-2 spike IgG and IgM antibody titers in COVID-19 patients who were vaccinated with inactivated vaccines or not: a retrospective study
Creators: name: Xu, Chuancai
name: He, Zhisong
name: Lei, Wei
name: Chen, Li
name: Shen, Dan
name: Wang, Xiaofei
name: Xu, Deyu
name: Xu, Ying
name: Huang, Jian’an
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 6: Table S6. Laboratory tests of the three groups with comorbidities.
Novel SPICE macro modeling for an integrated si schottky barrier diode
Creators: name: Ku, Janam
name: Min, Younghoon
name: Lee, Donghyun
name: Song, Iljong
name: Shim, Dongsig
name: Lee, Namkyoung
name: Lee, Seonghearn
name: Lee, Yongtaek
name: Choi, Munsung
name: Kim, Jonghyck
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: Anew and accurate modeling has been performed for an integrated Schottky barrier diode fabricated by 0.18um standard CMOS process. The bulk and distributed effects are considered by adding macro elements to an original SPICE diode model. The resistance and capacitance model parameters have been obtained precisely by a direct extraction method using S-parametersets with various bias points.Thevalidityof this new model andparameter extraction method has been verified by comparing with the measured S-parameters over the wide range of bias up to 10 GHz.
Invariants of Handlebody-Knots via Yokota's Invariants
Creators: name: Mizusawa, Atsuhiko
name: Murakami, Jun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We construct quantum $\mathcal{U}_q(\mathfrak{sl}_{\,2})$ type invariants for handlebody-knots in the 3-sphere $S^3$. A handlebody-knot is an embedding of a handlebody in a 3-manifold. These invariants are linear sums of Yokota's invariants for colored spatial graphs which are defined by using the Kauffman bracket. We give a table of calculations of our invariants for genus 2 handlebody-knots up to six crossings. We also show our invariants are identified with special cases of the Witten-Reshetikhin-Turaev invariants.
description: 19 pages, the title was modified and typos were corrected
Digital SiGe-chips for data transmission  up to 85 Gbit/s
Creators: name: Wohlgemuth, O.
name: Müller, W.
name: Paschke, P.
name: Link, T.
name: Lederer, R.
name: Kolb, B.
name: Dotzauer, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: Design and performance of a 2:1 multiplexer and 1:2 demultiplexer IC up to 85.4 Gbit/s are presented. The chips are fabricated in an advanced SiGe technology with a cutoff frequency ft of 200 GHz and a maximum oscillation frequency fmax of 275 GHz. With these two chips electrical data transmission at 80 and 85.4 Gbit/s could be achieved. In addition a pseudo random bit sequence (PRBS) generator IC is shown operating up to 80 Gbit/s and generating a 231-1 or a 27-1 pattern.
A metamorphic GaAs HEMT distributed amplifier  with 50 GHz bandwidth and low noise for 40 Gbits/s optical receivers
Creators: name: Wolf, G.
name: Demichel, S.
name: Leblanc, R.
name: Blache, F.
name: Lefèvre, R.
name: Dambrine, G.
name: Happy, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: An eight stage distributed amplifier with 12.5 dB ± 0.45 dB gain and 50 GHz bandwidth has been demonstrated in a commercially available 0.1 µm metamorphic GaAs HEMT (MHEMT) technology. The amplifier has a minimum noise figure lower than 2.5 dB in the bandwidth. The group delay variation from 9 to 40 GHz is ± 7.5 ps and circuit consumption is 0.4 W. Such amplifier has been packaged with a high responsivity photodiode into a fiber pig-tailed module. Eye diagrams measurements demonstrate the successful high-speed operation of the photoreceiver.  Index Terms — distributed amplifiers, metamorphic HEMT, MMICs, photoreceiver, fiber optic communication, microstrip circuits.
Characterizing correlations with full counting statistics: classical Ising and quantum XY spin chains
Creators: name: Ivanov, Dmitri A.
name: Abanov, Alexander G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose to describe correlations in classical and quantum systems in terms of full counting statistics of a suitably chosen discrete observable. The method is illustrated with two exactly solvable examples: the classical one-dimensional Ising model and the quantum spin-1/2 XY chain. For the one-dimensional Ising model, our method results in a phase diagram with two phases distinguishable by the long-distance behavior of the Jordan-Wigner strings. For the quantum XY chain, the method reproduces the previously known phase diagram.
description: 6 pages, section on Lee-Yang zeros added, published version
A lifting functor for toric sheaves
Creators: name: Perling, Markus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14L30, 13A02, 14M25

description: For a variety X which admits a Cox ring we introduce a functor from the category of quasi-coherent sheaves on $X$ to the category of graded modules over the homogeneous coordinate ring of $X$. We show that this functor is right-adjoint to the sheafification functor and therefore left-exact. Moreover, we show that this functor preserves torsion-freeness and reflexivity. For the case of toric sheaves we give a combinatorial characterization of its right-derived functors in terms of certain right-derived limit functors.
description: 13 pages, requires packages ams*, enumerate, revised version
20190220 Revised Appendix - A Little Bit Of Law 20190101
Creators: name: Brenneman, Kurt
Publisher: name: Zenodo
Year: 2019
Subjects: family law
child support
child custody
property law
landlord
tenant
tenancy
due process

description: This document is copied verbatim from Article IV and Article V of Earth Compact 2020, Ecology of Governance, Open Source Draft ©20190220 — humus.io — Kurt Brenneman, Silvia Oliveira and Marah Brenneman, editors; Creative Commons Noncommercial Attribution license (CC BY-NC 4.0), which allows for unrestricted non commercial use, distribution, and adaptation, provided that the original editors and source are credited. Earth Compact 2020 is an open source project intended to evolve from a visionary document in 2020 into a fully peer-to-peer Earth Compact, living on in perpetuity as an open source universal agreement on certain immutable elements of the rule of law necessary to governance of sustainable human ecology. This document and a copy of Earth Compact 2020 can be accessed from the following repositories:

Academia.edu https://independent.academia.edu/KurtBrenneman

ORCID https://orcid.org/0000-0001-9545-175X

Google Drive https://drive.google.com/drive/folders/1K6xxLFfesR5gmxvQYFbqOieiVZIAIhGN

Dropbox  https://www.dropbox.com/sh/c82x5go1w4e22fx/AAA9OJZ29J18Xo1nL6IXBRRva
A ku band monolithic power amplifier for TT&C applications
Creators: name: Florian, C.
name: Cignani, R.
name: Vannini, G.
name: Comparini, M.C.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: The paper describes the design of a 38 dBm monolithic power amplifier at Ku band. The amplifier has to be used as the final stage of the downlink transmitter of a TT&C system. A commercial power p-HEMT process capable of handling a power density higher than 1 W/mm of active area has been selected for the amplifier design. The power capability of this process makes it possible to integrate in a monolithic chip the functionality up today supplied by hybrid modules. Since the circuit is a space product, the attention is focused on reliability issues; therefore performances have to be matched imposing the devices to work at de-rated conditions respect to the process maximum ratings. In this perspective, the device channel temperature becomes a very tight design objective and has to be carefully controlled by means of a thermal simulator. The paper describes the three dimensional thermal model built to predict the devices thermal behavior in the environment of a finite difference thermal simulator. The design of the circuit is also described from the specifications to the final layout.
GaAs/AlGaAs heterojunction: a promising detector for infrared radiation
Creators: name: Asmontas, S.
name: Gradauskas, J.
name: Seliuta, D.
name: Suziedelis, A.
name: Silenas, A.
name: Valusis, G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1997
Subjects: ING-INF/01 Elettronica

description: We report our results on experimental study of photovoltage, induced by pulsed CO2 laser in GaAs/AlGaAs heterojunctions. We show that photoemission of hot carriers across the potential barrier is the dominant mechanism in formation of the photovoltage. The analysis of the current-voltage characteristic reveals that the photocurrent has maximum at bias voltage related to the potential barrier height of p-n heterojunction. Moreover, we demostrate that the use of heterojunction has an advantage over homojunction in the infrared detection.
Optimization of millimeter frequency multipliers by incorporation of numerical modelling into circuit simulators.
Creators: name: Grajal, J.
name: Krozer, V.
name: Maldonado, F.
name: González, E.
name: Gismero, J.
name: Lin, C.
name: Hartnagel, H. L.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: An integrated design philosophy which combines physical device modelling and circuit simulation is applied for the design of Schottky-diode frequency multipliers for millimeter-wave applications. The physical model is based on the drift-diffudion theory. It also includes self-consistently image force lowering, tunnelling transport, current dependent recombination velocity at the Schottky contact and impact-ionization. This coupling enables to concurrently optimize the device electrical and geometrical parameters together with achievable output power, conversion efficiency and the required loads at the specific harmonics.
Three essays on the value of online social commerce
Creators: name: Grange, Camille
Publisher: name: University of British Columbia
Year: 2014

description: Online social commerce is a new phenomenon at the intersection of social media and e- Commerce. While it triggers rising interest from practitioners, the progress of its understanding in academic research is delayed by conceptual and empirical challenges (e.g., multifaceted nature, interdependent users). This thesis aims to tackle these challenges to further the understanding of whether, under which conditions, and how socially infused settings enhance the quality of consumers’ experience. In Paper #1, I develop a view of social commerce that accounts for two key aspects of social media (i.e., they are supported by technological platforms, and they rely on social networks) as well as for the nature of the context (i.e., exchanges between consumers and business actors). This paper serves as a conceptual background for two studies that focus on consumers’ product search via social network (SN)-enabled shopping platforms. These two studies are conducted within a similar experimental environment that uses a custom-developed restaurant review site integrated with Facebook. In Paper #2, I analyze whether and under which conditions SN-enabled shopping settings are effective in facilitating experiences that are diagnostic (i.e., informative) and serendipitous (i.e., prone to unexpected but useful findings). I find that serendipity is a prominent benefit of SN-enabled platforms versus traditional ones, and that diagnostic and serendipity are both more contingent upon the size of shoppers’ friendship network when the platform is designed with private versus open boundaries. While Paper #2 focuses on design effects, Paper #3 concentrates on the effects of social ties. I explain how two properties of consumers’ social capital (i.e., quantity and quality) influence two important outcomes of consumers’ experiences: their perceptions of usefulness and enjoyment. I find that the three proposed intervening factors (mobilizing friends’ informational resources, effort reduction, and curiosity arousal) do not equally facilitate usefulness and enjoyment, which creates interesting future research avenue. In summary, this research contributes by: (1) offering a rich account of the social commerce phenomenon, (2) explaining why and how online social relationships matter, and (3) offering some methodological lessons for future investigations.
The Euler Number of Bloch States Manifold and the Quantum Phases in Gapped Fermionic Systems
Creators: name: Ma, Yu-Quan
name: Gu, Shi-Jian
name: Chen, Shu
name: Fan, Heng
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a topological Euler number to characterize nontrivial topological phases of gapped fermionic systems, which originates from the Gauss-Bonnet theorem on the Riemannian structure of Bloch states established by the real part of the quantum geometric tensor in momentum space. Meanwhile, the imaginary part of the geometric tensor corresponds to the Berry curvature which leads to the Chern number characterization. We discuss the topological numbers induced by the geometric tensor analytically in a general two-band model. As an example, we show that the zero-temperature phase diagram of a transverse field XY spin chain can be distinguished by the Euler characteristic number of the Bloch states manifold in a (1+1)-dimensional Bloch momentum space.
Die Lebenswelt von berufstätigen Personen mit gleichzeitiger Erziehungs- und Pflegeverantwortung : eine phänomenologische Studie
Creators: name: Bauernschmidt, Dorothee Brigitte
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 610

description: Die höhere Lebenserwartung, der Trend zur späteren Familiengründung und die steigende Erwerbstätigkeit von Frauen führen dazu, dass Personen im mittleren Lebensalter gleichzeitig mit Sorgeerfordernissen für minderjährige Kinder und für pflegebedürftige Angehörige konfrontiert werden, die sie mit einer Berufstätigkeit vereinbaren. Das Ziel der Arbeit war, Erkenntnisse zur gelebten Erfahrung dieser Personen und ihrer Wahrnehmung von (pflege-)professionellen Unterstützungsangeboten zu gewinnen. Es wurden narrative Interviews mit 16 berufstätigen Personen geführt, die gleichzeitig Erziehungsverantwortung für minderjährige Kinder tragen und für pflegebedürftige Angehörige sorgen. Im Rahmen einer interpretativ-phänomenologischen Analyse wurden Themen und das konstitutive Muster herausgearbeitet, welche die gelebte Erfahrung der Befragten beschreiben.
description: In the light of higher life expectancy, later childbirth and an increasing female labour force participation, more middle-aged persons are confronted with simultaneous care needs of minor children and care-dependent persons while being employed. The aim of this study was to gain insights into the lived experience of these individuals and their perceptions of (healthcare-)professional support services. Narrative interviews were conducted with 16 employed individuals who are simultaneously caring for minor children and for relatives in need of care. An interpretative-phenomenological analysis was used to identify themes and a constitutive pattern describing the lived experience of the interviewers.
Transmission of packets on a hierarchical network: Statistics and explosive percolation
Creators: name: Kachhvah, Ajay Deep
name: Gupte, Neelima
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Networking and Internet Architecture (cs.NI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We analyze an idealized model for the transmission or flow of particles, or discrete packets of information, in a weight bearing branching hierarchical 2-D networks, and its variants. The capacities add hierarchically down the clusters. Each node can accommodate a limited number of packets, depending on its capacity and the packets hop from node to node, following the links between the nodes. The statistical properties of this system are given by the Maxwell - Boltzmann distribution. We obtain analytical expressions for the mean occupation numbers as functions of capacity, for different network topologies. The analytical results are shown to be in agreement with the numerical simulations. The traffic flow in these models can be represented by the site percolation problem. It is seen that the percolation transitions in the 2-D model and in its variant lattices are continuous transitions, whereas the transition is found to be explosive (discontinuous) for the V- lattice, the critical case of the 2-D lattice. We discuss the implications of our analysis.
description: 24 pages, 41 figures
Investigation of the magnetic phase transition and magnetocaloric properties of the Mn$_2$FeSbO$_6$ ilmenite
Creators: name: Hudl, M.
name: Mathieu, R.
name: Nordblad, P.
name: Ivanov, S. A.
name: Bazuev, G. V.
name: Lazor, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic phase transition and magnetocaloric properties of mineral and synthetic melanostibite Mn$_2$FeSbO$_6$ with ilmenite-type structure have been studied. Mn$_2$FeSbO$_6$ orders ferrimagnetically below 270 K and is found to undergo a second-order magnetic phase transition. The associated magnetic entropy change amounts to 1.7 J/kgK for the mineral and 1.8 J/kgK synthetic melanostibite for 5 T field change. For the synthetic Mn$_2$FeSbO$_6$ the adiabatic temperature change was estimated from magnetic- and specific heat measurements and amounts to 0.2 K in 1 T field change. Perspectives of the promising functional properties of Mn$_2$FeSbO$_6$-based materials are discussed.
description: 6 pages, 7 figures
Stochastic integration with respect to additive functionals of zero quadratic variation
Creators: name: Walsh, Alexander
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We consider a Markov process $X$ associated to a nonnecessarily symmetric Dirichlet form $\mathcal{E}$. We define a stochastic integral with respect to a class of additive functionals of zero quadratic variation and then we obtain an Itô formula for the process $u(X)$, when $u$ is locally in the domain of $\mathcal{E}$.
description: Published in at http://dx.doi.org/10.3150/12-BEJ457 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
title: Zum Andenken an Hermann Dolder, pract. Arzt in Stäfa
title: Bestattungsrede gehalten in der Kirche zu Stäfa [...] in Olten, 31. Mai 1891
titleType: Subtitle
Creators: name: (:Unkn) Unknown
Publisher: name: E. Gull
Year: 1891
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Dolder, Hermann

description: Bestattungsrede gehalten in der Kirche zu Stäfa von Herrn Stadtpfarrer Gilg in Olten, 31. Mai 1891.
B cell receptor signaling and its role in pathology and therapy of Chronic Lymphocytic Leukemia [Kumulative Dissertation]
Creators: name: Wenserski, Lisa
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 572

description: Ein Ziel dieser Arbeit war ein besseres Verständnis für differentielles B-Zell-Rezeptor (BCR)-Signaling im heterogenen Verlauf der Chronischen Lymphatischen Leukämie (CLL) und die Identifizierung von Biomarkern oder Molekülen, die neue therapeutische Ansätze bieten und die Anwendung etablierter Therapien verbessern. Basierend auf einem SH2-Domänen-Screening konnten SHP2 und SLAMF1 bzw. 7 als mutmaßlich ausschlaggebend für einen indolenten klinischen Verlauf in der CLL identifiziert werden. SHP2 wurde später mit anergem Signaling in Verbindung gebracht, während SLAMF1 und SLAMF7 das BCR-Signaling hemmen, indem sie PHB2 von seiner essentiellen Funktion am B-Zell-Rezeptor abziehen. Darüber hinaus scheinen sie auch die durch NK-Zellen vermittelte Anti-CLL-Immunität zu verbessern. In einem zweiten Projekt wurden mittels Hochdurchsatz Sequenzierungen die Auswirkungen von zielgerichteten und klassischen, Chemotherapie basierten Therapien auf das gesunde B-Zell-Kompartiment verglichen.
description: One aim of this thesis was a better understanding of differential B cell receptor (BCR) signaling in the highly heterogeneous course of Chronic Lymphocytic Leukemia (CLL) and the identification of biomarkers or target molecules that fuel innovative therapeutic approaches and improve the choice of existing compounds. Based on a SH2-domain screening, we found SHP2 and the SLAMF receptors 1 and 7 as putatively decisive for a more indolent clinical course and a favorable prognosis in CLL. SHP2 could later be linked to anergic signaling that promotes survival without proliferation in tumor cells while SLAMF1 and SLAMF7 were shown to inhibit BCR signaling by recruiting PHB2 away from the B cell receptor where it is essential for physiological signaling. Additionally, they also seem to improve NK cell mediated anti-CLL immunity. A second project compared the impact of targeted vs chemotherapy-based regimens on the healthy B cell compartment using next generation sequencing technology.
A 45 dB variable gain low noise MMIC amplifier
Creators: name: Anowar Masud Kelly, M.
name: Zirath, Herbert
name: Kelly, Matthew
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A variable gain amplifier operating at 2.5 GHz based on Single Ended topology has been designed and characterized. Three such stages were cascaded preceded by a single stage LNA. A source follower is used at the output as an active load matching. Overall dynamic gain variation is 45 dB with a maximum gain of 47 dB.  The -3 dB bandwidth is 0.800 GHz. A minimum noise figure of 0.81 dB is obtained in the highest gain mode. Maximum value of 1 dB compression at the output is -7.2 dBm and the corresponding third order intercept point is +5.3 dBm. Consumed DC power 285 mW and is immune to gain variation.  The circuit is implemented with GaAs pHEMT technology. The combined area occupied by the multistage  low noise VGA and the single ended VGA is 3.5 mm X 3 mm.
СИГИРЛАР КУЙГА КЕЛИШИ ВА ОРГАНИЗМДА МОДДАЛАР АЛМАШИНУВИГА ТУХУМДОНЛАРДА БЎЛАДИГАН ПЕРСИСТЕНТ САРИҚ ТАНАНИНГ ТАЪСИРИ
Creators: name: Қўлдошев О.У. Ветеринария фанлари доктори, катта илмий ходим Суванов С.А. тайанч докторант. Ветеринария илмий-тадқиқот институти.
Publisher: name: Zenodo
Year: 2025

description: В данной статье изложены резултаты научных исследовании и изучени степени распростронения персистентного желтого тела яичников, влияние этой патологии на опладотваряемость и обмен вещест у коров в сравнении с клинически здоровыми животными. Количество коров животноводческой хозяйствах с персистентными желтыми телами яичников составило 7,0-10,0% от общего количества исследованных животных. Сравнительная оценка обмена веществ у клинически здоровых и больных показала, что течение данной патологии соправождается значительным увелечением сроков восстановления стадии возбуждения полового цикла, нарушением кислотно-щелечного равновесия, кальцево-фосфорного обмена,, снижением содержания каротина, витамина А, Е, а также снижением содержания эритроцитов на 14,8% и гемоглобина на 6,1%.
Shell-crossings in Gravitational Collapse
Creators: name: Joshi, Pankaj S.
name: Saraykar, Ravindra V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: While studying the continual gravitational collapse of a massive matter cloud in general relativity towards examining collapse final states, an important issue is that of whether shell-crossing singularities can develop as the collapse evolves. We examine this here to show that for any spherically symmetric collapse in general, there is always a finite neighborhood of the center in which there are no shell-crossings taking place. It follows that in order to study the final genuine shell-focusing singularity of collapse where the physical radius of the matter cloud shrinks to a vanishing value, we can always consider without any loss of generality a collapsing ball of a finite comoving radius in which there are no shell-crossings taking place. This clarifies an important point for gravitational collapse studies.
description: 4 pages, typos corrected and references added
Mixing of orthogonal and skew-orthogonal polynomials and its relation to Wilson RMT
Creators: name: Kieburg, Mario
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 15B52, 33C45, 33C47, 33D45, 42C05, 60B20, 94A11

description: The unitary Wilson random matrix theory is an interpolation between the chiral Gaussian unitary ensemble and the Gaussian unitary ensemble. This new way of interpolation is also reflected in the orthogonal polynomials corresponding to such a random matrix ensemble. Although the chiral Gaussian unitary ensemble as well as the Gaussian unitary ensemble are associated to the Dyson index $β=2$ the intermediate ensembles exhibit a mixing of orthogonal polynomials and skew-orthogonal polynomials. We consider the Hermitian as well as the non-Hermitian Wilson random matrix and derive the corresponding polynomials, their recursion relations, Christoffel-Darboux-like formulas, Rodrigues formulas and representations as random matrix averages in a unifying way. With help of these results we derive the unquenched $k$-point correlation function of the Hermitian and then non-Hermitian Wilson random matrix in terms of two flavour partition functions only. This representation is due to a Pfaffian factorization drastically simplifying the expressions for numerical applications. It also serves as a good starting point for studying the Wilson-Dirac operator in the $ε$-regime of lattice quantum chromodynamics.
description: 50 pages, PACS: 02.10.Yn, 02.50.-r, 05.50.+q, 71.10.Fd, 12.38.-t
Die diagnostische Wertigkeit des durchflusszytometrischen Markers CD103 bei Sarkoidose
Creators: name: Mühlhölzer, Bruno Friedrich
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 610

description: Die pulmonale Sarkoidose erfordert zur Diagnosesicherung zumeist eine Biopsie. Bei klinischem Sarkoidoseverdacht wird meist im Vorfeld die CD4/CD8-Ratio in der BALF bestimmt. In neueren Studien wurde das Oberflächenantigen CD103 als weiterer Marker untersucht, welches zu einem hohen Anteil auf pulmonalen Lymphozyten exprimiert wird. Die vorliegende Arbeit untersucht die diagnostische Wertigkeit dieses Oberflächenmarkers für die Diagnostik der Sarkoidose in einer eigenen Studienpopulation und vergleicht die Ergebnisse mit denen anderer Arbeiten. Die Analysen erfolgten vornehmlich zwischen histologisch gesicherten Sarkoidosen und anderen ILDs bzw. allen nicht-Sarkoidosen. Die diagnostische Wertigkeit von CD103, v.a. der CD103CD4/CD4-Ratio, wurde mithilfe von ROC-Kurven eingeschätzt und stellte sich dabei als guter Marker zur Abgrenzung der Sarkoidose von anderen Erkrankungen heraus.
description: For diagnostic confirmation of pulmonary sarcoidosis a biopsy is needed regularly. In case of clinical suspicion, the CD4/CD8-Ratio in BAL-Fluid is determined. New studies investigated the role of the surface antigen CD103 as an additional marker, which is expressed on pulmonary lymphocytes in high proportion. The present paper examins the value of this marker for the diagnosis of sarcoidosis in an own study population and compares it to other works. The analyses mostly refered to histologically confirmed sarcoidosis and other ILDs or. all non-sarcoids. The estimation of the diagnostic value of CD103, especially the CD103CD4/CD4-Ratio, was done by ROC-curves. In the present study population it turned out to be a sufficiant marker for discriminating between sarcoidosis and other diseases.
A V band singly balanced diode mixer for space application
Creators: name: Florian, C.
name: Scappaviva, F.
name: Feudale, M.
name: Monaco, V.A.
name: Filicori, F.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: The paper describes the design of a V band single balanced mixer to be employed in the front end of an on-board receiver for space applications. The V band receiver is a demonstrator for the use of different monolithic processes and interconnection/assembly technologies in space applications at such high frequencies. The receiver front-end consists of a multi-stage LNA amplification followed by an image reject filter, the mixer and a frequency doubler for the local oscillator. All the chips are mounted over an LTTC substrate using bumps/hot vias technology. Chip to chip interconnection is provided by coplanar wave guide on LTTC. The mixer employs a rat race 180° hybrid to balance the local oscillator and a couple of Schottky diodes as mixing elements. The technology employed is a 0.15μm pHMET process that offers diodes with a cut off frequency higher that 300GHz. The choices made for the mixer type and topology starting from the system specifications are covered in the paper along with the actual description of the circuit design.
Evaluierung eines Interventionsprogramms zur Ressourcenstärkung und Entwicklung von positiven Stressverarbeitungsstrategien im Nachwuchsfußball
Creators: name: Petereit, Katharina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 796

description: Aus dem aktuellen Forschungsstand kann abgeleitet werden, dass derzeit kein evidenzbasiertes Stressbewältigungsprogramm im Nachwuchsfußball vorliegt, die Entwicklung eines ebensolchen jedoch aufgrund steigender psychischer Belastungen als wesentlich erachtet wird. Aus diesem Grund wurde ein zwölfwöchiges Interventionsprogramm mit Nachwuchsspielern im Alter von 14 bis 19 Jahren durchgeführt und mithilfe eines randomisierten und kontrollierten Studiendesigns überprüft. Die Ergebnisse der Wirksamkeitsprüfung zeigen, dass eine kurz- sowie mittelfristige Steigerung der positiven Bewältigungsstrategien zugunsten der Versuchsgruppe erreicht werden konnte. Zudem empfanden 83 % der Spieler das Programm als hilfreich und über die Hälfte gab an, die erlernten Strategien weiterhin einzusetzen. Für nachfolgende Untersuchungen mit einem ähnlichen Forschungsschwerpunkt wird eine größere Stichprobe sowie eine differenzierte Betrachtung weiterer Komponenten des Stressbewältigungsprozesses empfohlen.
description: Based on the current state of research, it can be concluded that there is currently no evidence-based stress management program in youth soccer, but that the development of such a program is considered essential due to increasing psychological stress. Therefore, a twelve-week intervention program was conducted with junior soccer players aged 14 to 19 years and tested using a randomized controlled trial design. The results of the efficacy test show that a short- as well as medium-term increase in positive coping strategies could be achieved in favor of the experimental group. In addition, 83 % of the players found the program helpful, and more than half indicated that they would continue to use the strategies learned. For subsequent studies with a similar research focus, a larger sample as well as a differentiated consideration of further components of the stress coping process is recommended.
MOCCA Code for Star Cluster Simulations - II. Comparison with N-body Simulations
Creators: name: Giersz, Mirek
name: Heggie, Douglas C.
name: Hurley, Jarrod
name: Hypki, Arkadiusz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We describe a major upgrade of a Monte Carlo code which has previously been used for many studies of dense star clusters. We outline the steps needed in order to calibrate the results of the new Monte Carlo code against $N$-body simulations for large $N$ systems, up to $N=200000$. The new version of the Monte Carlo code (called MOCCA), in addition to the features of the old version, incorporates the direct Fewbody integrator (Fregeau et al. 2004) for three- and four-body interactions, and a new treatment of the escape process based on Fukushige & Heggie (2000). Now stars which fulfil the escape criterion are not removed immediately, but can stay in the system for a certain time which depends on the excess of the energy of a star above the escape energy. They are called potential escapers. With the addition of the Fewbody integrator the code can follow all interaction channels which are important for the rate of creation of various types of objects observed in star clusters, and ensures that the energy generation by binaries is treated in a manner similar to the $N$-body model. There are at most three new parameters which have to be adjusted against $N$-body simulations for large $N$: two (or one, depending on the chosen approach) connected with the escape process, and one responsible for the determination of the interaction probabilities. The values adopted for the free parameters have at most a weak dependence on $N$. They allow MOCCA to reproduce $N$-body results with reasonable precision, not only for the rate of cluster evolution and the cluster mass distribution, but also for the detailed distributions of mass and binding energy of binaries. Additionally, the code can follow the rate of formation of blue stragglers and black hole - black hole binaries.
description: 15 pages, 24 figures. Matched to published version in MNRAS
On-chip GaAs-HBTbroadband-coupled high-bitrate modulator driver TWAs
Creators: name: Meliani, C.
name: Rudolph, M.
name: Heinrich, W.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A technique to connect two broadband GaAs HBT TWAs is presented. It covers the full range from DC to high frequency and is suitable for high bitrate (40 Gb/s) transmission circuits. This behavior is achieved by modifying the response of  one TWA so that it compensates the low-frequency losses. This technique is truly broadband because it uses only elements which are directly connected, and thus is not limited at very low frequencies. Each single TWA delivers 8 dB of broadband gain at a 3dB cut-off-frequency of 26 GHz. Using this interconnect technique, a total broadband gain of 14.5 dB is obtained.
Control of topologically non-trivial spin excitations [Kumulative Dissertation]
Creators: name: Schäffer, Alexander Frederic
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: 530

description: In dieser Dissertation wird die Manipulation von Spinanregungen mit einer nicht-trivialen Realraumtopologie in magnetischen Festkörpern untersucht. Magnetische Skyrmionen sind wirbelartige Quasiteilchen, die eine hohe Mobilität und Stabilität aufweisen und daher vielversprechende Kandidaten zur Anwendung in Speichermedien sind. Theoretische Konzepte und numerische Simulationen zur Kontrolle von magnetischen Quasiteilchen werden präsentiert. Anschließend wird die Existenz von twisted magnons (gewundene Magnonen) demonstriert. Twisted magnons sind Spinwellenmoden in magnetischen Materialien, die einen Bahndrehimpuls tragen. Kontrollmechanismen, Transporteffekte und die Robustheit ihrer topologischen Ladung gegenüber Störungen werden untersucht. Aufgrund der möglichen Verbesserungen hinsichtlich Geschwindigkeit und Energieeffizienz, sind die präsentierten Konzepte von direkter Relevanz für Anwendungen in der Datenspeicherung und Informationsübertragung.
description: This thesis presents results on controlling spin excitations with a non-trivial real space topology in magnetic solids. In particular, magnetic skyrmions and related non-collinear magnetic configurations are discussed. Skyrmions are localized whirl-like quasiparticles with high mobility and stability making them promising candidates for information storage devices. Theoretical concepts and simulations are presented for controlling magnetic quasiparticles. Subsequently, the existence of twisted magnons is predicted, which are excitations in magnetic systems that carry orbital angular momentum (OAM). Control mechanisms, transport effects, and the robustness of the twisted magnons' topological charge against perturbations are demonstrated. The new concepts presented in the thesis are of direct relevance to applications in data storage and information transfer with the potential for improving future technology in terms of speed and energy efficiency.
A Generalization of the Goldberg-Sachs Theorem and its Consequences
Creators: name: Batista, Carlos
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The Goldberg-Sachs theorem is generalized for all four-dimensional manifolds endowed with torsion-free connection compatible with the metric, the treatment includes all signatures as well as complex manifolds. It is shown that when the Weyl tensor is algebraically special severe geometric restrictions are imposed. In particular it is demonstrated that the simple self-dual eigenbivectors of the Weyl tensor generate integrable isotropic planes. Another result obtained here is that if the self-dual part of the Weyl tensor vanishes in a Ricci-flat manifold of (2,2) signature the manifold must be Calabi-Yau or symplectic and admits a solution for the source-free Einstein-Maxwell equations.
description: 14 pages. This version matches the published one
Forms representing forms and linear spaces on hypersurfaces
Creators: name: Brandes, Julia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D72 (Primary) 11E76, 11P55 (Secondary)

description: A generalisation of Waring's problem, considered first by Arkhipov and Karatsuba, is the question of representing not an integer, but a given polynomial, as a sum of powers of linear polynomials. We investigate a related problem and prove a Hasse principle for the number of identical representations of a set of given forms by homogeneous polynomials of general shape. The result leads to sizeable improvements for estimates of the number of linear spaces on the intersection of hypersurfaces.
description: 26 pages; v.2: the main part of the argument has been expanded and an error has been fixed, v.3: various typos have been corrected. Accepted for publication at the Proceedings of the LMS