cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Next generation MMIC integration technology for high frequency phase array antennas
Creators: name: Van Ress, B.H.
name: Laghton, D.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: LEO communication satellite systems typically utilize Active Phased Array antenna's because they are reliable and offer multiple beam operation, as well as electronic beam steering. The key technology behind the succesful realization of these systems is the GaAs MMIC-based module which is used to produce the active elements of the antenna.
The MMIC modules need to be capable of a variety of complex functions, while they simultaneously have to be reproducibly matched in their performance parameters to provide the desired beam shaping. This poses a challenge to the module manufacturer who has to produce hundreds or thousands of MMIC modules, all closely matched in their performance characteristics at affordable cost.
As the operating frequencies shift from the current L- and S-band systems to Ku- and Ka-band the challenge is even greater and novel technologies will have to be implemented to meet the new demands.
title: The German national cohort study on the development of motor performance, physical activity and health in children and adolescents: the MoMo 2.0-Study protocol
Creators: name: Woll, Alexander
name: Klos, Leon
name: Worth, Annette
name: Hanssen-Doose, Anke
name: Hinz, Thomas
name: Völkle, Manuel
name: Burchartz, Alexander
name: Niessner, Claudia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2025
Subjects: subject: Child
subject: Adolescent
subject: Physical Fitness
subject: Health
subject: 610 Medizin und Gesundheit

description: Introduction: Regular physical activity (PA) and good motor performance are essential for children’s physical and mental health. However, historical trends suggest that levels of PA and motor performance in children and adolescents are at a low point. The relationships between PA, motor performance, health and their respective determinants, as well as their individual development throughout childhood and adolescence, are not yet fully understood. Therefore, continuous monitoring of PA, motor performance and health is needed to identify vulnerable subpopulations and provide data for policy-makers and health promotion professionals. The Motorik Monitoring 2.0-Study aims to analyse the developmental, historical and periodic trends in motor performance and PA, as well as the underlying determinants, in children and adolescents in Germany. Methods and analysis: A representative sample of children and adolescents aged 4–17 years is drawn across 195 sample points in Germany. The assessment, carried out by test instructors, includes (1) a PA questionnaire covering different settings, including determinants, (2) anthropometric measures, (3) fine and gross motor performance tests focusing on coordination, flexibility, strength and endurance, (4) 24 hours device-based measured physical behaviour by accelerometry for 1 week and (5) a health interview focusing on health behaviour, physical and mental health as well as socioeconomic status. In addition, external data may be linked to the study using geographical information systems (eg, area deprivation, access to sports facilities). Analyses will be conducted using mixed-effects models to account for the nationwide structure of the study. Ethics and dissemination: Ethical approval was obtained from the Ethics Committee of the Karlsruhe Institute of Technology. Results will be published in open-access scientific journals and disseminated at congresses for scientists, policy-makers and stakeholders. Trial registration number: The study was registered in the NFDI4health database ( https://csh.nfdi4health.de/resource/1034 ). The NFDI4health database is a central platform of the National Research Data Infrastructure for Personal Health Data. It is used to collect, manage and provide health data for scientific research and facilitates access to high-quality data for epidemiological and clinical studies.
Some Ramsey-type results on intrinsic linking of n-complexes
Creators: name: Tuffley, Christopher
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57Q45 (Primary) 57M15, 57Q35 (Secondary)

description: Define the complete n-complex on N vertices to be the n-skeleton of an (N-1)-simplex. We show that embeddings of sufficiently large complete n-complexes in R^{2n+1} necessarily exhibit complicated linking behaviour, thereby extending known results on embeddings of large complete graphs in R^3 (the case n=1) to higher dimensions. In particular, we prove the existence of links of the following types: r-component links, with the linking pattern of a chain, necklace or keyring; 2-component links with linking number at least lambda in absolute value; and 2-component links with linking number a non-zero multiple of a given integer q. For fixed n the number of vertices required for each of our results grows at most polynomially with respect to the parameter r, lambda or q.
description: 26 pages, 4 figures. v3: references added, some typos corrected, order of Thms 1.4 and 1.5 reversed, other minor changes in response to referee's comments. v2: added reference to arXiv:0705.2026 and updated abstract and introduction in view of that paper; improved bound in Thm 1.4 from O(p^4) to O(p^2); some additional discussion of results; typos corrected
Investigations on the optimization of the soluble production of heterologous proteins in Escherichia coli
Creators: name: Nguyen, Viet San
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2007
Subjects: subject: Elektronische Publikation
subject: Hochschulschrift
subject: Online-Publikation
subject: Zsfassung in dt. Sprache
subject: 660.63

description: In dieser Doktorarbeit wurde die Produktion des löslichen Proteins Tissue type plasminogen aktivator variante (rPA) im Periplasma von E.coli und Fermentationsmedium mit Hilfe der Thiol-oxidase DsbA in den Erlenmeyerkolben und Fed-batch Kultivierung untersucht. Die Einflüsse der Koexpression von DsbA, verschiedenen Zusatzstoffen (L-Arginin, Redox system, Glycin und Triton X-100) und die Bedingungen für die Lokalisierung von rPA im Periplasma und Fermentationsmedium wurden ermittelt. Unter Verwendung des Dynamic Light Scattering (DLS) konnten die Auswirkungen der Produktionsbedingungen auf die Größe der Einschlusskörper (inclusion bodies-IBs) von α-Glucosidase im Cytolasma von E.coli und auf die Löslichkeit der Proteine ermittelt werden. Die Korngrößenverteilungen der IBs unter verschiedenen Kultivierungsbedingungen, wie z.B: verschiedene Medien, Temperatur, Batch und Fed-batch Kultivierung auf verschiedene Temperaturen wurden analysiert durch DLS. Die Überproduktion von mehreren molekularen Chaperone z.B. DnaK und ClpB in E. coli, die Auswirkungen von Chaperonen auf die Bildung der aggregierende Proteine, Löslichkeit der IBs und das Verhältnis von Aktivität der α-Glucosidase auf die Größe der IBs wurden ebenfalls überprüft.
description: In this thesis, production of the soluble protein tissue-type plasminogen activator variant (rPA) in the periplasm and culture supernatant with the assistance of thiol oxidase DsbA as a coexpressed helper protein in shake flask and fed-batch cultivation was investigated. The influences of coexpression of DsbA, different additives (L-arginine, redox system, glycine and Triton X-100) and fermentation conditions on the localization of rPA in the periplasm and culture supernatant were investigated. Besides that, a new technique Dynamic Light Scattering (DLS) using the Zetasizer 3000 (Malvern, UK) was applied to determine the impact of production conditions on the size of inclusion bodies (IBs) of α-glucosidase in cytolasm of E.coli and on the protein solubility. Size distributions of IBs of α-glucosidase under various cultivation conditions such as: different media, temperature, batch and fed-batch cultivation at different temperature were analysed by DLS. By overproduction of several molecular chaperones e.g. DnaK and ClpB in E. coli, effects of those chaperones on aggregated protein formation, resolubilization of α-glucosidase IBs and the relation of α-glucosidase activity to the size of the IBs were also studied.
Finding Higgs bosons heavier than 2 m_W in dileptonic W-boson decays
Creators: name: Barr, Alan J.
name: Gripaios, Ben
name: Lester, Christopher G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reconsider observables for discovering a heavy Higgs boson (with m_h > 2m_W) via its di-leptonic decays h -> WW -> l nu l nu. We show that observables generalizing the transverse mass that take into account the fact that both of the intermediate W bosons are likely to be on-shell give a significant improvement over the variables used in existing searches. We also comment on the application of these observables to other decays which proceed via narrow-width intermediates.
description: v1:4 pages, 1 figure; v2: 6 pages, 2 figures, substantially revised
Gallium Arsenide micromechanics. A comparison to Silicon and Quartz
Creators: name: Hjort, Klas
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1994
Subjects: ING-INF/01 Elettronica

description: The review compares GaAs micromechanics to silicon and quartz. It is shown that in micromechanics, GaAs combines the advantages of both silicon and quart. Like silicon it is semiconducting and it is possible to do advanced micromachining in GaAs. Like quartz, it is piezoelectric and may have a very high bulk resistivity. Also, with GaAs come new possibilities in integrated optoelectronics, such as lasers and photodiodes. Inspite of a lower mechanical endurance, the strength of GaAs micromechanics is sufficient for most micromechanical applications. It is concluded that GaAs has a large unexploited potential in micromechanics.
MMICs for commercial satellite applications: from C and Ku to Ka band and millimeterwave
Creators: name: Comparini, M.C.
name: Feudale, M.
name: Suriani, A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: The application of MMIC technology to space hardware have seen a strong increase in the last years mainly to support the market demand for commercial satellite applications. Radiofrequency and microwave unit integrated in communication payloads for fixed (FSS), broadcasting (BSS) as well as mobile (MSS) services made extensively use of gallium arsenide MMIC designed and realised with european and american foundries. A new boundary will be the design and development of low cost, high production rate space hardware for satellite constellations like Celestri, Cyberstar, EuroSkyWay. SkyBridge, Spaceway, Teledesic. The paper will focus the application of MMIC technology in the Alenia Aerospazio on-board equipment engineering and production and will give a map of the present developments in conjunction with future trends.
MMIC applications to space equipment
Creators: name: Kazekami, Y.
name: Hirose, H.
name: Mitsui, Y.
name: Takagi, T.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: We demonstrated high power and low noise GaAs MMIC amplifiers for K- to Ka-band space equipment. For high power application, two different approaches were adopted. A SIV(Source Island Via-hole) FET high power amplifier achieved a saturation output power of 33 dBm with a power added efficiency of 26% at 21 GHz, which also provided an output power as high as 32 W when 16 chips of them were power-combined in an SSPA for an on-board transponder. On the other hand, a p-HEMT high power amplifier using lumped element matching circuits provided a P1dB of 31 dBm with a linear gain of 11.5 dB at 19 GHz. For low noise application, p-HEMT low noise amplifier delivered a super low noise Figure of 1.0 dB with an associated gain of 18 dB at 32 GHz. Gamma ray irradiation hardness of mm-wave MMIC LNAs was also investigated, up to 1E7 rad, which indicated that the p-HEMT MMIC LNA has sufficient gamma ray hardness in the space environment.
Gymnoschiza Moser 1914
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Gymnoschiza

description: Gymnoschiza Moser, 1914b
[6 species].
Type species Anartioschiza gracilipes Brenske, 1898, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
title: Stand und Perspektive von ORCID in Deutschland
Creators: name: Pampel, Heinz
name: Schrader, Antonia C.
name: Vierkant, Paul
name: Dreyer, Britta
name: Glagla-Dietz, Stephanie
name: Hartmann, Sarah
name: Schirrwagen, Jochen
name: Summann, Friedrich
Publisher: name: Humboldt-Universität zu Berlin
Year: 2025
Subjects: subject: ORCID
subject: Publikationsmanagement
subject: Katalogisieren
subject: Autorenidentifikation
subject: Open Science
subject: Informationsmanagement
subject: ORCID
subject: publication management
subject: cataloguing
subject: author identification
subject: open science
subject: information management
subject: 020 Bibliotheks- und Informationswissenschaften

description: Mit dem ORCID-Standard wurde ein System der persistenten Identifikatoren für Forschende geschaffen. Der Förderung von ORCID in Deutschland widmete sich von 2016 bis 2022 das von der Deutschen Forschungsgemeinschaft (DFG) geförderte Projekt ORCID DE. Dank des Projekts konnte die Anzahl der in Deutschland registrierten ORCID iDs von etwa 44 000 im Jahr 2016 auf 356 800 im Jahr 2024 gesteigert werden. Die Schaffung einer Dialogplattform und der Aufbau eines nationalen Konsortiums sind weitere Erfolge von ORCID DE. Auch wurde die Integration von ORCID in zentrale Standards der Informationsinfrastruktur vorangetrieben und die Vernetzung mit der Gemeinsamen Normdatei (GND) durch verschiedene Verfahren der Vernetzung befördert. Mit der Integration von ORCID in die Bielefeld Academic Search Engine (BASE) wurde die Sichtbarkeit von ORCID in Open-Access-Publikationen gesteigert. Durch den Aufbau des ORCID-DE-Monitors wurde ein Informationssystem zur Verbreitung von ORCID auf internationaler Ebene geschaffen. Der Beitrag beschreibt die Arbeit und Ergebnisse des Projekts und dokumentiert anhand der formulierten ACTION-Prinzipien Anregungen für ähnliche Standardisierungsinitiativen im Bereich der digitalen Informationsinfrastruktur.
description: The ORCID standard established a system of persistent identifiers for researchers. The promotion of ORCID in Germany was the focus of the ORCID DE project, funded by the German Research Foundation (DFG) from 2016 to 2022. Thanks to the project, the number of ORCID iDs registered in Germany increased from about 44,000 in 2016 to 356,800 in 2024. The creation of a dialogue platform and the establishment of a national consortium are additional achievements of ORCID DE. The integration of ORCID into key standards of the information infrastructure was advanced and its networking with the Integrated Authority File (GND) was enhanced through various methods of connection. Integrating ORCID into the Bielefeld Academic Search Engine (BASE) increased the visibility of ORCID in open access publications. The development of the ORCID DE Monitor created an information system to disseminate ORCID on an international level. The article describes the work and results of the project and documents suggestions for similar standardization initiatives in the field of digital information infrastructure, based on the formulated ACTION principles.
Vortices in the extended Skyrme-Faddeev model
Creators: name: Ferreira, L. A.
name: Jäykkä, J.
name: Sawado, Nobuyuki
name: Toda, Kouichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We construct analytical and numerical vortex solutions for an extended Skyrme-Faddeev model in a $(3+1)$ dimensional Minkowski space-time. The extension is obtained by adding to the Lagrangian a quartic term, which is the square of the kinetic term, and a potential which breaks the SO(3) symmetry down to SO(2). The construction makes use of an ansatz, invariant under the joint action of the internal SO(2) and three commuting U(1) subgroups of the Poincaré group, and which reduces the equations of motion to an ODE for a profile function depending on the distance to the $x^3$-axis. The vortices have finite energy per unit length, and have waves propagating along them with the speed of light. The analytical vortices are obtained for special choice of potentials, and the numerical ones are constructed using the Successive Over Relaxation method for more general potentials. The spectrum of solutions is analyzed in detail, specially its dependence upon special combinations of coupling constants.
description: 26 pages, 9 figures; matches published version
Hecistopsilus Kolbe 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Hecistopsilus

description: Hecistopsilus Kolbe, 1894
[3 species].
Erected for two species (Hecistopsilus molitor Kolbe, 1894; Hecistopsilus sinuatus Kolbe, 1894) but no type species designated.
Note: Sharp (1894) incorrectly spelt Hecistopsilus as “ Hecistospilus ”.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Open quantum dynamics of single-photon optomechanical devices
Creators: name: Hong, Ting
name: Yang, Huan
name: Miao, Haixing
name: Chen, Yanbei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantum dynamics of a Michelson interferometer with Fabry-Perot cavity arms and one movable end mirror, and driven by a single photon --- an optomechanical device previously studied by Marshall et al. as a device that searches for gravity decoherence. We obtain an exact analytical solution for the system's quantum mechanical equations of motion, including details about the exchange of the single photon between the cavity mode and the external continuum. The resulting time evolution of the interferometer's fringe visibility displays interesting new features when the incoming photon's frequency uncertainty is narrower or comparable to the cavity's line width --- only in the limiting case of much broader-band photon does the result return to that of Marshall et al., but in this case the photon is not very likely to enter the cavity and interact with the mirror, making the experiment less efficient and more susceptible to imperfections. In addition, we show that in the strong-coupling regime, by engineering the incoming photon's wave function, it is possible to prepare the movable mirror into an arbitrary quantum state of a multi-dimensional Hilbert space.
description: 14 pages and 9 figures. Comments are welcome
Supplementary Table 9
Creators: name: Holman, Devin
Publisher: name: figshare
Year: 2021
Subjects: subject: 60504 Microbial Ecology
subject: FOS: Biological sciences

description: Table S9. Differentially abundant abundant MetaCyc pathways on d 21 and 28 between weaned vs. nursing piglets. Negative cofficient values at 21 d of age indicate that the MetaCyc pathway was more relatively abundant in the d 14-weaned pigs vs. the d 21- and 28-weaned pigs. Negative cofficient values at 28 and 35 d of age indicate that the MetaCyc pathway was more relatively abundant in the d 28-weaned pigs vs. the d 14- and 21-weaned pigs.
Supplementary Table S10
Creators: name: Holman, Devin
Publisher: name: figshare
Year: 2021
Subjects: subject: 60504 Microbial Ecology
subject: FOS: Biological sciences

description: Table S10. Differentially abundant abundant antimicrobial resistance genes (ARGs) on d 21 and 28 between weaned vs. nursing piglets. Negative cofficient values (highlighted) at 21 d of age indicate that the ARG was more relatively abundant in the d 14-weaned pigs vs. the d 21- and 28-weaned pigs. Negative cofficient values (not highlighted) at 28 d of age indicate that the ARG was more relatively abundant in the d 28-weaned pigs vs. the d 14- and 21-weaned pigs.
Efficient Computation of Sensitivity Coefficients of Node Voltages and Line Currents in Unbalanced Radial Electrical Distribution Networks
Creators: name: Christakou, Konstantina
name: Boudec, Jean-Yves Le
name: Paolone, Mario
name: Tomozei, Dan-Cristian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The problem of optimal control of power distribution systems is becoming increasingly compelling due to the progressive penetration of distributed energy resources in this specific layer of the electrical infrastructure. Distribution systems are, indeed, experiencing significant changes in terms of operation philosophies that are often based on optimal control strategies relying on the computation of linearized dependencies between controlled (e.g. voltages, frequency in case of islanding operation) and control variables (e.g. power injections, transformers tap positions). As the implementation of these strategies in real-time controllers imposes stringent time constraints, the derivation of analytical dependency between controlled and control variables becomes a non-trivial task to be solved. With reference to optimal voltage and power flow controls, this paper aims at providing an analytical derivation of node voltage and line current flows as a function of the nodal power injections and transformers tap-changers positions. Compared to other approaches presented in the literature, the one proposed here is based on the use of the [Y] compound matrix of a generic multi-phase radial unbalanced network. In order to estimate the computational benefits of the proposed approach, the relevant improvements are also quantified versus traditional methods. The validation of the proposed method is carried out by using both IEEE 13 and 34 node test feeders. The paper finally shows the use of the proposed method for the problem of optimal voltage control applied to the IEEE 34 node test feeder.
description: accepted for publication to IEEE Transactions on Smart Grid
Canadian GaAs IC developments for communication applications
Creators: name: Stubbs, Malcolm G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: Canada's large landmass and the remote locations of many of its communities have placed great importance on long distance and high speed communications. Satellite communications continues to provide links to remote communities but the growing demand for bandwidth is leading the drive towards higher frequency bands and there is also an increasing emphasis on communication to personal mobile terminals. Today, new terrestrial wireless systems are also appearing to meet the human desire for high speed digital communications from the home, car, office or even golf course. This article presents an overview of some of the more significant GaAs IC developments achieved in Canada for commercial communications in the last few years.
Three-point functions of BMN operators at weak and strong coupling II. One loop matching
Creators: name: Grignani, Gianluca
name: Zayakin, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous paper, arXiv:1204.3096, we have shown that the fully dynamical three-point correlation functions of BMN operators are identical at the tree level in the planar limit of perturbative field theory and, on the string theory side, calculated by means of the Dobashi-Yoneya three string vertex in the Penrose limit. Here we present a one-loop calculation of the same quantity both on the field-theory and string-theory side, where a complete identity between the two results is demonstrated.
description: 14 pages, 2 figures, references added
Extremal spectral properties of Otsuki tori
Creators: name: Penskoi, Alexei V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58E11, 58J50

description: Otsuki tori form a countable family of immersed minimal two-dimensional tori in the unitary three-dimensional sphere. According to El Soufi-Ilias theorem, the metrics on the Otsuki tori are extremal for some unknown eigenvalues of the Laplace-Beltrami operator. Despite the fact that the Otsuki tori are defined in quite an implicit way, we find explicitly the numbers of the corresponding extremal eigenvalues. In particular we provide an extremal metric for the third eigenvalue of the torus.
description: 14 pages, 1 figure. v.2: minor corrections v.3: references are updated. arXiv admin note: text overlap with arXiv:1009.0285
Supplementary Table S7
Creators: name: Holman, Devin
Publisher: name: figshare
Year: 2021
Subjects: subject: 60504 Microbial Ecology
subject: FOS: Biological sciences

description: Table S7. Differentially abundant abundant CAZy families on d 21 and 28 between weaned vs. nursing piglets. Negative cofficient values (highlighted) at 21 d of age indicate that the CAZy family was more relatively abundant in the d 14-weaned pigs vs. the d 21- and 28-weaned pigs. Negative cofficient values (not highlighted) at 28 d of age indicate that the CAZy family was more relatively abundant in the d 28-weaned pigs vs. the d 14- and 21-weaned pigs.
Modeling alternating current rotating electrical machines using constant-parameter RL-branch interfacing circuits
Creators: name: Chapariha, Mehrdad
Publisher: name: University of British Columbia
Year: 2013

description: Transient simulation programs are used extensively for modeling and simulation of various electrical power and energy systems that include rotating alternating current machines as generators and motors. In simulation programs, traditionally, the machine models are expressed in qd-coordinates (rotational reference frame) and transformed variables, and the power networks are modeled in abc-phase coordinates (physical variables), which represents an interfacing problem. It has been shown in the literature that the method of interfacing machine models and the electric network models plays an important role in numerical accuracy and computational performance of the overall simulation. This research considers the state-variable-based simulation programs and proposes a unified constant-parameter decoupled RL-branch circuit in abc-phase coordinates (with optional zero-sequence). The proposed circuits are based on voltage-behind-reactance (VBR) formulation and can be used for interfacing both induction and synchronous machine models. The new models achieve a direct and explicit interface with arbitrary external electrical networks, which results in many computational advantages. Extensive computer studies are presented to verify the proposed models and to demonstrate their implementation in several commonly-used simulation programs. The new models are shown to offer significant improvements in accuracy and numerical efficiency over the existing state-of-the-art models due to their direct interface. It is further envisioned that the proposed models will receive a wide acceptance in research community and simulation software industry, and may enable the next generation of power systems simulation tools.
Zielorientierung ambulant behandelter Patienten als motivationale Grundlage zur Verbesserung des physiotherapeutischen Therapieerfolges - eine kontrollierte klinische Studie
Creators: name: Baier, Jürgen Peter
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2016
Subjects: subject: 615

description: Ziel des Forschungsprojektes war es, die Überlegenheit einer gemeinsamen Ziel-vereinbarung zwischen Patient und Physiotherapeut in Kombination mit regelmäßigen Erfolgskontrollen im Vergleich zum Therapieerfolg einer Standardtherapie nachzuweisen. Der Wirksamkeitsnachweis erfolgte über eine multizentrisch durchgeführte Kontrollstudie im Nonequivalent Control Group Design. Zwei Studiengruppen zu je 64 Patienten mit Beschwerden am Bewegungsapparat an der unteren Extremität wurden im ambulanten Setting physiotherapeutisch behandelt. Die Teilnehmer aus der Kontrollgruppe (KG) wurden wie üblich behandelt. Beide Studiengruppen konnten sich in den vereinbarten Therapiezielen signifikant verbessern, wobei die Verbesserungen der IG im Gruppenvergleich deutlicher waren. Aufgrund der nur geringfügig besseren Termintreue in der IG, kann eine Aktivierung der Therapiemotivation nicht bestätigt werden. Obwohl sich eine Verbesserung der motivationsbedingten Adhärenz nicht bestätigt hat, wird der Hinweis bekräftigt, dass die partnerschaftliche Abklärung und Festlegung von messbaren Therapiezielen gemeinsam mit muskuloskeletal betroffenen Patienten eine Verbesserung von physiotherapeutischen Behandlungserfolgen in der ambulanten Versorgung bewirkt. Die gute Akzeptanz der Therapeuten bestätigt das Konzept als praktikable und wenig zeitintensive Maßnahme. Die ungeklärte Ursache der Wirksamkeit bedarf einer weitergehenden Untersuchung.
description: The aim of the research was to demonstrate the superiority of a goal agreement between patients and their responsible physical therapists combined with regular success controls compared to the treatment success of a standard therapy without specific goal orientation. Proof of efficacy was carried out by a multicenter study implemented in a Nonequivalent Control Group Design. Two study groups of each 64 outpatients with complaints of the musculoskeletal system at the lower extremity were treated with physical therapy. The participants of the control group (CG) provided the reference values for the group comparison to the intervention group (IG). Both study groups considerably improved in their treatment goals. The improvements in the IG were more significant. Due to the marginal better adherence to schedules in the IG, an activation of the treatment motivation can not be confirmed. Although an improvement of motivation-related adherence has not been confirmed, the study confirms that a cooperative clarification and definition of measurable treatment goals in agreement with musculoskeletal affected patients effected an improvement of physiotherapy treatment successes in the ambulatory care. The good acceptance of therapists confirms the concept as a viable and less time-consuming action. The unclarified cause of the effectiveness requires further research.
Practical application of GaAs MMIC technology to next-generation 20 / 30 GHz data communication systems
Creators: name: Alm, Roberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: Each year GaAs MMIC technology finds greater application in high volume, low-cost telecommunications systems. Cellular and PCS front-end chip-sets currently form the bulk of commercial GaAs MMIC products, but next generation systems now in design will require two-way data communications at 20 and 30 GHz. Infrastructure will be developed for both terrestrial (ground terminal) as well as space-based (satellite) interfaces for these new systems. This paper presents an overview of some of the GaAs MMIC chip-sets currently being designed to meet the requirements of these new 20 / 30 GHz systems, and examples are presented outlining some of the MMIC performance that has been achieved to date in prototype efforts. This paper also describes how GaAs MMIC technology might be packaged for integration with transmit and receive sub-systems. In some cases options are presented, and how these options might affect the resulting front-end designs are discussed. Finally, the challenges facing the technology implementation are outlined, and where possible, efforts aimed at overcoming the limitations of the technology are presented as practical solutions which could be available as production methods by the time these new systems are ready for high-volume production.
Heteroschiza Moser 1917
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Heteroschiza

description: Heteroschiza Moser, 1917
[1 species].
Type species Heteroschiza plumata Moser, 1917, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
A tunable 125 mW K-band MMIC power amplifiers for point to point radio application
Creators: name: Khandavalli, C.
name: Betti-Berutto, A.
name: Lum, G.
name: Fukaya, J.
name: Satoh, T.
name: Mitani, E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: A three stages GaAs MMIC power amplifier in MESFET Technology for point to point radio application that delivers an output power greater than 125 mW, with associated gain higher than 19 dB has been developed. The use of bias feed bonding wires as tuning element has been exploited to shorten the design cycle time and to optimize the circuit performance in the desired frequency bandwidth. The device has a power added efficiency greater than 15% at 1 dB of compression in the frequency bandwidth from 21.2 to 23.6 GHz. A pilot test for production has demonstrated the repetitivity of the good performance and the device has been accepted for large volume production after the first design cycle.
Corruption and Decentralization
Creators: name: Carbonara, Emanuela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: This paper studies the effect of decentralization on corruption in a hierarchical organization, where decentralization is intended as the delegation of control power to lower levels in a hierarchy. Decentral- ization causes a loss in control to the higher levels, thus curbing their incentives to monitor and detect corrupt activities. However, it also lowers the expected gains from corruption as, following decentralization, the number of individuals who are in charge of a single decision is reduced. It is then more likely that corrupt agents are called to bear the consequences of their actions. Hence, decentralization, although creating agency problems inside an organization, can help in controlling corruption.
Quantum Signatures of the Optomechanical Instability
Creators: name: Qian, Jiang
name: Clerk, A. A.
name: Hammerer, K.
name: Marquardt, Florian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the past few years, coupling strengths between light and mechanical motion in optomechanical setups have improved by orders of magnitude. Here we show that, in the standard setup under continuous laser illumination, the steady state of the mechanical oscillator can develop a non-classical, strongly negative Wigner density if the optomechanical coupling is large at the single-photon level. Because of its robustness, such a Wigner density can be mapped using optical homodyne tomography. These features are observed near the onset of the instability towards self-induced oscillations. We show that there are also distinct signatures in the photon-photon correlation function $g^{(2)}(t)$ in that regime, including oscillations decaying on a time scale not only much longer than the optical cavity decay time, but even longer than the \emph{mechanical} decay time.
description: 6 pages including 1 appendix. 6 Figures. Corrected
δN versus covariant perturbative approach to non-Gaussianity outside the horizon in multifield inflation
Creators: name: Watanabe, Yuki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the super-Hubble evolution of non-Gaussianity of primordial curvature perturbations in two-field inflation models by employing two formalisms: delta N and covariant formalisms. Although two formalisms treat the evolution of fluctuations radically different, we show that the formulas of f_{NL} parameter agree quantitatively with each other within 1 % accuracy. We analytically find that the amplitude of f_{NL} decays no faster than a^{-3} as the inflationary trajectory reaches to the adiabatic limit for generic potentials.
description: v4: minor changes, version accepted for PRD; v3: 10 pages, 14 figures, added two examples that produce relatively large non-Gaussianity in Appendix to support the results; v2: 8 pages, 10 figures, added references
Nuclear import of baculovirus autographa californica multiple nucleopolyhedrovirus (AcMNPV)
Creators: name: Au, Shelly
Publisher: name: University of British Columbia
Year: 2013

description: Autographa californica multiple nucleopolyhedrovirus (AcMNPV), the archetype of the Baculoviridae family, is an enveloped, rod-shaped, double-stranded DNA virus that replicates in the nucleus of its host cells. Baculoviruses have been used extensively as pesticides and in biological systems. Despite their importance, the mechanism by which baculovirus deliver its genome into the nucleus has been the subject of considerable debate. Molecules <39 nm in diameter enter the nucleus through nuclear pore complexes (NPCs) embedded within the nuclear envelope. Because the diameter of AcMNPV capsids (30 x 300 nm) falls below this limit, we hypothesize that AcMNPV capsids enter the nucleus via NPCs. In this thesis, we aim to visualize the mechanism of nuclear import used by the baculovirus AcMNPV capsid, to understand the role of cellular proteins facilitating viral capsid delivery into the nucleus, and to demonstrate the role of cellular actin in mediating nuclear import of the baculovirus capsid. We found for the first time that an intact AcMNPV capsid is able to traverse the NPC, importing the entire capsid into the nucleoplasm. This transport occurs through the NPC central channel, which is able to open up completely to accommodate the AcMNPV capsid. Nuclear transport of these capsids was inhibited by physical blockade of NPCs, as well as low temperature conditions, which inhibits facilitated transport and dynamic structural changes of the NPC. We also showed that nuclear import of AcMNPV capsids occurred independently of importin-β and the Ran cycle, but required activation of actin nucleation. Finally, we demonstrated through targeted knockdown that Nup62 and Nup153 are not essential in mediating nuclear import of AcMNPV capsids. Conversely, these depletion studies showed that Nup358 enhances the nuclear import efficiency of AcMNPV capsids. Our results support a model in which the intact baculovirus capsid, after being released into the cytoplasm during infection, enters the nucleus through the NPC, by a mechanism that does not require importin-β, Ran, and the three FG-Nups tested, but is dependent on actin nucleation. Because baculovirus capsids are among the largest cargos that translocation through the NPC, our results provide exciting new insights into how the NPC functions.
Special Interests and Technological Change
Creators: name: Bellettini, Giorgio
name: Ottaviano, Gianmarco I. P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: We model an OLG economy where productivity growth comes from two alternative sources: process innovation and learning-by-doing. There is a trade-off between the two in so far as frequent technological updates reduce the scope for learning on existing technologies. A conflict is shown to arise between the young and the old, because the former favor innovation while the latter prefer learning. We model the interaction between different generations and short-lived policy makers as a dynamic common agency problem, where competing generations invest a certain amount of resources to lobby either for the maintainance of the current technology or the adoption of a new one. By focusing on truthful Markov perfect equilibria, we characterize the political equilibrium and show its dependence on the underlying technological parameters.
title: Objectified but not Materialized Theory: Human Waste Diagrams Under Erasure
Creators: name: Prabaharyaka, Indrawan
Publisher: name: Humboldt-Universität zu Berlin
Year: 2025
Subjects: subject: waste
subject: theory
subject: objectification
subject: materialization
subject: erasure
subject: 900 Geschichte, Geografie und Hilfswissenschaften

description: This article questions the degrees of objectification and materialization of theory in material culture studies. It does so by examining the transformations and travelings of human waste diagrams, from a critique of economic externalities in sub-Saharan Africa to a tool of nonsewered sanitation planning in Southeast Asia, particularly in Indonesia: How can a theory become a scientific object but it rarely matters (e.g. turning into matters of concern/care and transforming into material artifacts)? This article firstly follows the moments in the 1990s to 2000s when a waste theory based on an accounting of flows and leakages of excrement and money was objectified as new knowledge abstracted from postcolonial cities in Western Africa, where the sewer network coverage is very low or non-existent. It then continues with what happened when the diagram's latest version—Shit Flow Diagram—was translated from English to Indonesian and its components were applied, adapted, and ignored in Indonesia and a new element in the diagram, the chain, was introduced and became a synecdoche of the waste theory. It concludes with a reflection on the limit of diagrams and the salient operation of erasure in the objectification of waste theory therein.
SGAS 143845.1+145407: A Big, Cool Starburst at Redshift 0.816
Creators: name: Gladders, Michael D.
name: Rigby, Jane R.
name: Sharon, Keren
name: Wuyts, Eva
name: Abramson, Louis E.
name: Dahle, Hakon
name: Persson, S. E.
name: Monson, Andrew J.
name: Kelson, Daniel D.
name: Benford, Dominic J.
name: Murphy, David
name: Bayliss, Matthew B.
name: Finkelstein, Keely D.
name: Koester, Benjamin P.
name: Bans, Alissa
name: Baxter, Eric J.
name: Helsby, Jennifer E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the discovery and a detailed multi-wavelength study of a strongly-lensed luminous infrared galaxy at z=0.816. Unlike most known lensed galaxies discovered at optical or near-infrared wavelengths this lensed source is red, r-Ks = 3.9 [AB], which the data presented here demonstrate is due to ongoing dusty star formation. The overall lensing magnification (a factor of 17) facilitates observations from the blue optical through to 500micron, fully capturing both the stellar photospheric emission as well as the re-processed thermal dust emission. We also present optical and near-IR spectroscopy. These extensive data show that this lensed galaxy is in many ways typical of IR-detected sources at z~1, with both a total luminosity and size in accordance with other (albeit much less detailed) measurements in samples of galaxies observed in deep fields with the Spitzer telescope. Its far-infrared spectral energy distribution is well-fit by local templates that are an order of magnitude less luminous than the lensed galaxy; local templates of comparable luminosity are too hot to fit. Its size (D~7kpc) is much larger than local luminous infrared galaxies, but in line with sizes observed for such galaxies at z~1. The star formation appears uniform across this spatial scale. In this source, the luminosity of which is typical of sources that dominate the cosmic infrared background, we find that star formation is spatially extended and well organised, quite unlike the compact merger-driven starbursts which are typical for sources of this luminosity at z~0.
description: 18 pages, 10 figures
Criticality without frustration for quantum spin-1 chains
Creators: name: Bravyi, Sergey
name: Caha, Libor
name: Movassagh, Ramis
name: Nagaj, Daniel
name: Shor, Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Frustration-free (FF) spin chains have a property that their ground state minimizes all individual terms in the chain Hamiltonian. We ask how entangled the ground state of a FF quantum spin-s chain with nearest-neighbor interactions can be for small values of s. While FF spin-1/2 chains are known to have unentangled ground states, the case s=1 remains less explored. We propose the first example of a FF translation-invariant spin-1 chain that has a unique highly entangled ground state and exhibits some signatures of a critical behavior. The ground state can be viewed as the uniform superposition of balanced strings of left and right parentheses separated by empty spaces. Entanglement entropy of one half of the chain scales as log(n)/2 + O(1), where n is the number of spins. We prove that the energy gap above the ground state is polynomial in 1/n. The proof relies on a new result concerning statistics of Dyck paths which might be of independent interest.
description: 11 pages, 2 figures. Version 2: minor changes in the proof of Lemma 3