cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inverse Seesaw Mechanism in Nonsupersymmetric SO(10), Proton Lifetime, Nonunitarity Effects, and a Low-mass Z' Boson
Creators: name: Awasthi, Ram Lal
name: Parida, Mina K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently realization of TeV scale inverse seesaw mechanism in supersymmetric SO(10) framework has led to a number of experimentally verifiable predictions including low-mass W_R and Z' gauge bosons and nonunitarity effects. Using nonsupersymmetric SO(10) grand unified theory, we show how a TeV scale inverse seesaw mechanism for neutrino masses is implemented with a low-mass Z' boson accessible to Large Hadron Collider. We derive renormalization group equations for fermion masses and mixings in the presence of the intermediate symmetries of the model and extract the Dirac neutrino mass matrix at the TeV scale from successful GUT-scale parameterization of fermion masses. We estimate leptonic nonunitarity effects measurable at neutrino factories and lepton flavor violating decays expected to be probed in near future. While our prediction on the nonunitarity matrix element $η_{μτ}$ for degenerate right-handed neutrinos is similar to the supersymmetric SO(10) case, we find new predictions with significantly enhanced value of its phase $δ_{μτ}\simeq 10^{-4}-10^{-2}$ when partial degeneracy among these neutrino masses is adequately taken into account by a constraint relation that emerges naturally in this approach. Other predictions on branching ratios and CP-Violating parameters are discussed. An important distinguishing characteristic as another test of the minimal model is that the threshold corrected two-loop prediction of the proton lifetime with maximum value (τ_p)_{max}\simeq 10^{35} yrs. is accessible to ongoing search experiments for the decay $p\to e^+π^0$ in the near future. Simple model extensions with longer proton lifetime predictions are also discussed.
description: PRD published version:"inverse seesaw" in title has been replaced by "inverse seesaw mechanism"; reviews on neutrino physics and new references on inverse seesaw mechanism have been added; discussions in Sec.VII and Sec. VIII included
Three-Dimensional Electromagnetic Approach to the Modeling of Linear Field Effect Transistors
Creators: name: Farina, M.
name: Rozzi, Tullio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: In this contribution we introduce a 3D electromagnetic approach to the modeling of active devices under the small-signal hypothesis. The proposed technique is validated by comparing measured and calculated results for a pseudomorphic High Electron Mobility Transistor (HEMT) in the millimeter-wave range.
Xenotrogus Britton 1978
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Xenotrogus

description: Xenotrogus Britton, 1978
[5 species].
Type species Rhopaea vitiensis Fairmaire, 1879, 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 127, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
An HST search for planets in the lower Main Sequence of the globular cluster NGC 6397
Creators: name: Nascimbeni, V.
name: Bedin, L. R.
name: Piotto, G.
name: De Marchi, F.
name: Rich, R. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Searches for planetary transits carried out in open and globular clusters have yielded to date only a handful of weak, unconfirmed candidates. These results have been interpreted either as being insignificant, or as evidence that the cluster chemical or dynamical environment inhibits the planetary formation or survival. Most campaigns were limited by small sample statistics or systematics from ground-based photometry. In this work we performed a search for transiting planets and variables in a deep stellar field of NGC 6397 imaged by HST-ACS for 126 orbits. We analyzed 5,078 light curves, including a pure sample of 2,215 cluster-member M0-M9 dwarfs. The light curves have been corrected for systematic trends and inspected with several tools. No high-significance planetary candidate is detected. We compared this null detection with the most recent results from Kepler, showing that no conclusive evidence of lower planet incidence can be drawn. However, a very small photometric jitter is measured for early-M cluster members (
description: 10 pages, 6 figures, 1 table; accepted for publication in A&A on February 16, 2012. Typos corrected. One figure and a short final note added
Rastertunnelmikroskopie zur Keimbildung und zum Wachstum dünner CoO-Schichten auf AG(100) und AU(100)
Creators: name: Sebastian, Ina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2000
Subjects: Elektronische Publikation

description: Übergangsmetalloxide sind allgemein von wachsender Bedeutung bei der Entwicklung katalytischer Systeme und elektronischer Bauelemente. Die meisten Metalloxide sind Isolatoren mit großer Bandlücke. Das führt zu experimentellen Problemen bei ihrer Charakterisierung. Aufladungseffekte treten gewöhnlich auf, wenn geladene Partikel zur Analyse eingesetzt werden. Die Aufladungsprobleme lassen sich prinzipiell umgehen, indem dünne epitaktische Metalloxidschichten auf metallische Substrate aufgebracht werden. Ag und Au stellen für dünne CoO-Schichten wegen der relativ geringen Gitterfehlpassung von etwa 4.3 % geeignete Substrate dar. Die CoO-Schichten wurden durch das Aufdampfen von Co in O2-Atmosphäre auf Ag(100) und Au(111) präpariert. Die Keimbildung und das Wachstum der epitaktischen CoO-Schichten wurden bei Substrattemperaturen zwischen 300 K und 600 K mittels Rastertunnelmikroskopie und Beugung langsamer Elektronen bei 300 K untersucht. Zur Identifizierung der Oxidschichten, zur Charakterisierung ihrer elektronischen Struktur und zur Optimierung der Abbildungsbedingungen zum Erhalt atomarer Auflösung wurde zusätzlich die Abhängigkeit der rastertunnelmikroskopischen Abbildungen von der Tunnelspannung untersucht. Die Abhängigkeit der Stufenhöhe von CoO kann qualitativ durch Tunnelstrombeiträge in Oxidzustände oder aus Oxidzuständen erklärt werden und korreliert mit der Größe der optischen Bandlücke des Oxides.
description: Generally, transition metal oxides are of growing importance in the engineering of catalytic systems and electronic devices. Most metal oxides are wide bandgap insulators, which implies experimental problems in their characterization. Usually charging effects arise when charged particles are applied as analytical tools. In principle, the charging problems can be overcome by using thin epitaxial layers of metal oxides prepared on metal substrates. Ag and Au are suitable substrates for CoO thin films because of the relatively small misfit of about 4.3 %. The CoO layers were prepared by Co deposition in O2 atmosphere on Ag(100) and Au(111). The nucleation and growth of epitaxial CoO layers have been studied at substrate temperatures between 300 K and 600 K by scanning tunneling microscopy and low-energy electron diffraction at 300 K. Additionally, for identification of the oxidic films, characterization of their electronic structure and to optimize the imaging conditions for atomically resolved results, the dependence of scanning tunneling microscopy images on the sample-bias voltage has been investigated. The dependence of the step height of CoO can be explained qualitatively by contributions of the tunneling current into of from oxide states, and correlates with the width of the optical bandgap of the oxide.
An Improved GaAs FET Nonlinear Model Suitable for Intermodulation Analysis of Amplifiers,Switches and Resistive Mixers
Creators: name: Loo-Yau, J.R.
name: Zúñiga-Juárez, J.E.
name: Hirata-Flores, F.I.
name: Reynoso-Hernández, J.A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper presents an IDS(VGS,VDS)model to represent PHEMT behavior in the reverse )0 (< DS V , and forward zone )0 (> DS V .The model predicts with high accuracy the measured data as well as higher orders derivatives of the transconductance over a large range of VDS bias.These characteristics are important for the analysis of intermodulation distortion using harmonic balance or Volterra series.Using the improved IDS(VGS,VDS)model along with an empirical model to simulate the nonlinear behavior of gate-source capacitance, CGS,and gate-drain capacitance,CGD,a GaAs FET nonlinear model suitable for intermodulation analysis of amplifiers,switches and resistive mixers is presented
Are cloned quantum states macroscopic?
Creators: name: Fröwis, F.
name: Dür, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study quantum states produced by optimal phase covariant quantum cloners. We argue that cloned quantum superpositions are not macroscopic superpositions in the spirit of Schrödinger's cat, despite their large particle number. This is indicated by calculating several measures for macroscopic superpositions from the literature, as well as by investigating the distinguishability of the two superposed cloned states. The latter rapidly diminishes when considering imperfect detectors or noisy states, and does not increase with the system size. In contrast, we find that cloned quantum states themselves are macroscopic, in the sense of both proposed measures and their usefulness in quantum metrology with an optimal scaling in system size. We investigate the applicability of cloned states for parameter estimation in the presence of different kinds of noise.
description: 8 pages, 5 figures, 1 table. Comments are welcome!
RF and IF mixer optimum matching impedances extracted by large-signal vectorial measurements
Creators: name: Cidronali, A.
name: Loglio, G.
name: Jargon, J.
name: Remley, K.A.
name: Magrini, I.
name: DeGroot, D.
name: Schreurs, D.
name: Gupta, K.C.
name: Manes, G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper introduces a new technique that allows us to measure the admittance conversion matrix of a two-port device,using a Nonlinear Vector Network Analyzer.This method is applied to extract the conversion matrix of a 0.2 µµµµm pHEMT,driven by a 4.8 GHz pump signal,at different power levels,using an intermediate frequency of 600 MHz.The issue on data inconsistency due to phase randomization among different measurements is discussed and a proper pre- processing algorithm is proposed to fix the problem. The output of this work consists of a comprehensive experimental evaluation of up-and down-conversion maximum gain,stability,and optimal RF and IF impedances.
Electric dipole moment oscillations in Aharonov-Bohm quantum rings
Creators: name: Alexeev, A. M.
name: Portnoi, M. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magneto-oscillations of the electric dipole moment are predicted and analyzed for a single-electron nanoscale ring pierced by a magnetic flux (an Aharonov-Bohm ring) and subjected to an electric field in the ring's plane. These oscillations are accompanied by periodic changes in the selection rules for inter-level optical transitions in the ring allowing control of polarization properties of the associated terahertz radiation.
description: 14 pages, 10 figures. Appendix including three more figures was added in the latest version
An Integrated View of Nonlinear Distortion Phenomena in Various Power Amplifier Technologies
Creators: name: Cabral, Pedro Miguel
name: Borges Carvalho, Nuno
name: Pedro, José Carlos
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper presents an integrated view of nonlinear distortion in various power amplifier, PA, technologies. Using very weak assumptions, it shows that large signal IMD sweet spots are inherent to a wide variety of PA technologies like Si MOSFET, Si LDMOS, Si BJT, GaAs MESFET, GaAs-AlGaAs HEMT, justifying their use in the design of highly linear and efficient PAs.
title: Mitigation of Algorithmic Bias to Improve AI Fairness
Creators: name: Wang, Kathy
Publisher: name: Old Dominion University Libraries
Year: 2022

description: As artificial intelligence continues to evolve rapidly with emerging innovations, mass-scale digitization could be disrupted due to unfair algorithms with historically biased data. With the rising concerns of algorithmic bias, detecting biases is essential in mitigating and implementing an algorithm that promotes inclusive representation. The spread of ubiquitous artificial intelligence means that improving modeling robustness is at its most crucial point. This paper examines the omnipotence of artificial intelligence and its resulting bias, examples of AI bias in different groups, and a potential framework and mitigation strategies to improve AI fairness and remove AI bias from modeling techniques.
Device-level Intermodulation Distortion Control on III-V FET ’s Abstract
Creators: name: García, J.A.
name: Malaver, E.
name: Cabria, L.
name: Gómez, C.
name: Mediavilla, A.
name: Tazón, A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: Highly linear and efficient amplification is currently a hot topic in the RF/microwave community. Special interest is being paid to those low cost and simple solutions able to be implemented in current and future mobile terminals.Device-level intermodulation distortion (IMD)control represents a key element in this research effort,since it allows both the optimization of the transistor linearity performance and the development of novel device- based linearization techniques.In this paper,the main IMD characteristics of III-V FET ’s are remarked,either on small-or large-signal regime,to show the potentialities of different operating conditions for the design of highly linear amplifiers.Some promising linearization topologies,based on these characteristics,are then considered.Finally,the spatial power combining feature of certain radiating structures is incorporated in such topologies,resulting in highly integrated solutions.
Content validation of the Quality of Life for Homeless and Hard-to-House Individuals (QoLHHI) Health and Living Conditions impact sections : implications for instrument use and content validation methodology
Creators: name: Russell, Lara Beate
Publisher: name: University of British Columbia
Year: 2013

description: Evidence based on content is one of the key sources of validity evidence described in the Standards for Educational and Psychological Testing. This dissertation used three groups of content experts to gather validity evidence based on content for two sections of the Quality of Life for Homeless and Hard-to-House Individuals (QoLHHI) Survey. One goal of this dissertation was to examine the implications of this evidence for the validity of inferences made from the QoLHHI, while a second goal was to determine if judgmental studies using content experts, a popular method for content validation, can be improved. Quantitative and descriptive validity evidence was collected from 11 subject matter experts (researchers working with individuals who are homeless and vulnerably housed (HVH)), 16 experiential experts (individuals who were HVH), and 8 practical experts (individuals who had administered the QoLHHI). These experts independently rated the relevance and technical quality of the items, response scales, administration instructions and other content elements of the QoLHHI. Content Validity Indices were computed and used to identify elements that were endorsed by the experts. Experts also provided descriptive feedback in the form of comments and suggestions for improving the QoLHHI content. This feedback was used to develop recommendations for revising the content. In terms of evidence based on content for the QoLHHI, over 85% of the content elements were endorsed, indicating good evidence for validity. The recommended revisions are relatively straightforward to implement. Overall, the content of these two sections of the QoLHHI appears likely to produce scores that lead to supportable and appropriate inferences. With regards to methodology, a new approach to content validation is proposed. Traditionally, content validation studies have focused on quantitative assessments, with descriptive data being given a secondary role. It is proposed here that content experts should be viewed as an advisory board rather than a representative sample of a larger population, that members’ feedback should be given individual attention, and that judgmental studies should focus primarily on the experts’ descriptive feedback, which is where their knowledge, experience, and insight are best expressed.
Theoretical and Experimental Investigations on Nonlinear Capacitance and Loading Effects on Power PHEMT's Linearity
Creators: name: Forestier, S.
name: Gasseling, T.
name: Bouysse, P.
name: Barataud, D.
name: Quere, R.
name: Nebus, J.M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper presents a theoretical and experimental analysis of the phase conversion phenomena in a power PHEMT transistor. Relationships between the linearity of the device and the intrinsic gate-source capacitance CGS, gate-drain capacitance CGD ,transconductance GM as well as the load impedance ZL ,are explained. A judicious choice of the transistor’s operating conditions allows to reduce thephaseconversion AM/PM. In the case of PHEMT devices, the behaviors of CGS,CGD,GM elements and ZL value induce internal compensation phenomena between the intrinsic non-linearities.
Zietzia Blackburn 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Zietzia

description: Zietzia Blackburn, 1894
[1 species].
Type species Zietzia geologa Blackburn, 1894, 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 127, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
In the matter of the schedules filed by New York Telephone Company increasing rates and charges for telephone service in the State of New Jersey ; In the matter of the schedules filed by The Delaware and Atlantic Telegraph and Telephone Company increasing rates and charges for telephone service in the State of New Jersey : brief on behalf of New York Telephone Company and The Delaware and Atlantic Telegraph and Telephone Company
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1924

description: State of New Jersey Board of Public Utility Commissioners In the matter of the schedules filed by New York Telephone Company increasing rates and charges for telephone service in the State of New Jersey. In the matter of the schedules filed by The Delaware and Atlantic Telegraph and Telephone Company increasing rates and charges for telephone service in the State of New Jersey. Brief on behalf of New York Telephone Company and The Delaware and Atlantic Telegraph and Telephone Company
Time dependent embedding of spherically symmetric Rindler-like spacetime
Creators: name: Culetu, Hristu
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: An anisotropic cosmic fluid with radial heat flux which sources a time dependent Rindler-like geometry is investigated. Even though its energy density $ρ$ is positive, the radial and transversal pressures are negative and the strong energy condition is not satisfied. The congruence of "static" observers is not geodesic and the heat flux is oriented outward. We computed the Misner-Sharp energy associated with the Rindler-type metric embedded in a spatially flat FLRW universe and found that the Weyl energy is vanishing thanks to the conformally flat form of the spacetime. The null geodesic expansions are computed and one finds that only one of the two apparent horizons is located inside the event horizon. The properties of the Rindler-like geometry embedded in the conformally-flat de Sitter spacetime are investigated.
description: 12 pages, no figures, chap. 4 extended, version published in Class. Quantum Grav. 29 (2012) 235021 (9pp)
Is the past the best forecast of the future in a data rich environment?: the case of China
Creators: name: Zhang, Qin
Publisher: name: Macquarie University
Year: 2022
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: GDP growth rate and inflation are two of the most critical issues facing China's economy. To improve GDP growth rate and inflation forecasts in a data rich environment, this thesis studies forecasting of China's four leading macroeconomic variables using six models. These variables are the consumer price index (CPI). industrial production, electricity production, and producer price index:industrial goods. The three factor models used are: the diffusion index (DI), factor-augmented autoregressive integrated moving average (FARIMA) model and factor-augmented vector autoregressive (FAVAR) model. The three univariate time series models are: autoregressive model (AR), autoregressive integrated model and simple exponential smoothing model. The predictors are summarised using a small number of indexes constructed by principal component analysis and then are used to construct one-, three-, and six-month-ahead forecasts using 36 predictors from 1997 through 2014. Compared to benchmark AR forecasts, the forecasting results of the factor models showed that the DI and the FARIMA model generally do not improve forecasting performances for CPI, industrial production, and production of electricity in one-,three-, and six-month-ahead. Rather, the FAVAR model yields significant improvements over the benchmark AR model except for CPI in one-month-ahead forecast. Another notable result is that the two wining models in three-, and six-month-ahead forecasts: exponential smoothing and factor-augmented VAR modelessentially produce the naive forecasts except for PPI:industrial goods. This implies that the benefits of using complicated forecasting models such as diffusion index or factor-augmented VAR model are minor; naive forecasts are sufficient to explain the predictable dynamics of the CPI, industrial production and electricity production in three-, and six-month ahead. Overall, this study provides interesting results on forecasting China's macroeconomy in a data rich environment.
A Fast AM/AM and AM/PM Characterization Technique
Creators: name: Acciari, G.
name: Colantonio, P.
name: De Dominicis, M.
name: Rossi, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: In this paper a novel AM/AM and AM/PM power amplifier characterization technique is presented, exploiting signals interference properties. Key features of the proposed measurement technique are the simplicity, requiring basic scalar power measurements only, and the low cost of the utilized set-up; moreover, it allows a power amplifier distortion characterisation in a very short time if compared with a more conventional method utilizing a Vector Network Analyzer. A description of the measurement set-up used to perform AM/AM and AM/PM characterisation is given. Lastly,in order to validate the measurement technique, comparisons with vector network analyzer measurements, for a 2W,2GHz power amplifier, are reported.
Multiorbital analysis of the effects of uniaxial and hydrostatic pressure on $T_c$ in the single-layered cuprate superconductors
Creators: name: Sakakibara, Hirofumi
name: Suzuki, Katsuhiro
name: Usui, Hidetomo
name: Kuroki, Kazuhiko
name: Arita, Ryotaro
name: Scalapino, Douglas J.
name: Aoki, Hideo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The origin of uniaxial and hydrostatic pressure effects on $T_c$ in the single-layered cuprate superconductors is theoretically explored. A two-orbital model, derived from first principles and analyzed with the fluctuation exchange approximation gives axial-dependent pressure coefficients, $\partial T_c/\partial P_a>0$, $\partial T_c/\partial P_c<0$, with a hydrostatic response $\partial T_c/\partial P>0$ for both La214 and Hg1201 cuprates, in qualitative agreement with experiments. Physically, this is shown to come from a unified picture in which higher $T_c$ is achieved with an "orbital distillation", namely, the less the $d_{x^2-y^2}$ main band is hybridized with the $d_{z^2}$ and $4s$ orbitals higher the $T_c$. Some implications for obtaining higher $T_c$ materials are discussed.
description: 6pages, 4 figures
The role of alpha v beta 6 integrin in enamel biomineralization
Creators: name: Mohazab, Leila
Publisher: name: University of British Columbia
Year: 2013

description: Tooth enamel has the highest degree of biomineralization of all vertebrate hard tissues. During the secretory stage of enamel formation, ameloblasts deposit an extracellular matrix that is in direct contact with ameloblast plasma membrane. Although it is known that integrins mediate cell-matrix adhesion and regulate cell signaling in most cell types, the receptors that regulate ameloblast adhesion and matrix production are not well characterized. Thus, we hypothesized that αvβ6 integrin is expressed in ameloblasts where it regulates biomineralization of enamel. Human and mouse ameloblasts were found to express both β6 integrin mRNA and protein. The maxillary incisors of Itgb6-/- mice lacked yellow pigment and their mandibular incisors appeared chalky and rounded. Molars of Itgb6-/- mice showed signs of reduced mineralization and severe attrition. The mineral-to-protein ratio in the incisors was signiﬁcantly reduced in Itgb6-/- enamel, mimicking hypomineralized amelogenesis imperfecta. Interestingly, amelogenin-rich extracellular matrix abnormally accumulated between the ameloblast layer of Itgb6-/- mouse incisors and the forming enamel surface, and also between ameloblasts. This accumulation was related to increased synthesis of amelogenin, rather than to reduced removal of the matrix proteins. This was conﬁrmed in cultured ameloblast-like cells, which did not use αvβ6 integrin as an endocytosis receptor for amelogenins, although it participated in cell adhesion on this matrix indirectly via endogenously produced matrix proteins. In summary, integrin αvβ6 is expressed by ameloblasts and it plays a crucial role in regulating amelogenin deposition/turnover and subsequent enamel biomineralization.
Separability and the genus of a partial dual
Creators: name: Moffatt, Iain
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Partial duality generalizes the fundamental concept of the geometric dual of an embedded graph. A partial dual is obtained by forming the geometric dual with respect to only a subset of edges. While geometric duality preserves the genus of an embedded graph, partial duality does not. Here we are interested in the problem of determining which edge sets of an embedded graph give rise to a partial dual of a given genus. This problem turns out to be intimately connected to the separability of the embedded graph. We determine how separability is related to the genus of a partial dual. We use this to characterize partial duals of graphs embedded in the plane, and in the real projective plane, in terms of a particular type of separation of an embedded graph. These characterizations are then used to determine a local move relating all partially dual graphs in the plane and in the real projective plane.
Fully-integrated wideband TTD core chip with serial control
Creators: name: Van Vliet, F.E.
name: Van Wanum, M.
name: Roodnat, A.W.
name: Alfredson, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: The design and performance of a fully-integrated wideband TTD core chip is presented. The integration philosophy is discussed. The MMIC presented integrates 7-bit amplitude and 6-bit time-delay, as well as the control functions of a transmit/receive module. This control includes a serial-to-parallel converter with TTL-compatible input. The MMIC is realised on the 0.25µm PHEMT (ed02ah) process of OMMIC.
Fractional quantum Hall states of photons in an array of dissipative coupled cavities
Creators: name: Umucalilar, R. O.
name: Carusotto, I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report a theoretical study of the collective optical response of a two-dimensional array of nonlinear cavities in the impenetrable photon regime under a strong artificial magnetic field. Taking advantage of the non-equilibrium nature of the photon gas, we propose an experimentally viable all-optical scheme to generate and detect strongly correlated photon states which are optical analogs of the Laughlin states of fractional quantum Hall physics.
description: 6 pages including the Supplemental Material (accepted for publication in Phys. Rev. Lett.)
Pachypus Dejean 1821
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pachypus

description: Pachypus Dejean, 1821 (not Pachypus Billberg, 1820 (nomen oblitum, Bouchard et al. 2011), Pachypus d’Alton, 1840, nor Pachypus Cambridge, 1873)
[5 species].
Type species Melolontha excavatus Fabricius, 1792 (= Pachypus candidae (Petagna, 1786)), by monotypy.
Caelodera Dejean, 1833.
Unnecessary replacement name for Pachypus Dejean, 1821. Gené (1836) incorrectly spelt Caelodera as “ Coelodera ”.
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 127, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Mixed stochastic differential equations with long-range dependence: existence, uniqueness and convergence of solutions
Creators: name: Mishura, Yuliya
name: Shevchenko, Georgiy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G22, 60G15, 60H10, 26A33

description: For a mixed stochastic differential equation involving standard Brownian motion and an almost surely Hölder continuous process $Z$ with Hölder exponent $γ>1/2$, we establish a new result on its unique solvability. We also establish an estimate for difference of solutions to such equations with different processes $Z$ and deduce a corresponding limit theorem. As a by-product, we obtain a result on existence of moments of a solution to a mixed equation under an assumption that $Z$ has certain exponential moments.
Performance Trends and Analysis in the Lancaster Archery Classic Men's Barebow Division: A Comprehensive Study
Creators: name: Cassani, Bruno
Publisher: name: Zenodo
Year: 2024
Subjects: Archery
Barebow

description: This study presents an in-depth analysis of performance trends in the Men’s Barebow division at the Lancaster Archery Classic from its inception in 2017 through to 2024. By examining key factors such as score progression, equipment choices, and competition dynamics, the findings reveal a steady increase in overall scores, driven by the evolution of technique, equipment advancements, and a growing pool of talent. The dominance of particular riser brands, the emerging use of 3-spot targets, and the limited yet impactful role of the 12-ring are explored. These insights offer a valuable perspective on the rapid development of barebow as a competitive discipline and its future trajectory.
Magnetic States of the Two-Leg Ladder Alkali Metal Iron Selenides $A$Fe$_2$Se$_3$
Creators: name: Luo, Qinlong
name: Nicholson, Andrew
name: Rincón, Julián
name: Liang, Shuhua
name: Riera, José
name: Alvarez, Gonzalo
name: Wang, Limin
name: Ku, Wei
name: Samolyuk, German D.
name: Moreo, Adriana
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent neutron scattering experiments addressing the magnetic state of the two-leg ladder selenide compound BaFe$_2$Se$_3$ have unveiled a dominant spin arrangement involving ferromagnetically ordered 2$\times$2 iron-superblocks, that are antiferromagnetically coupled among them (the "block-AFM" state). Using the electronic five-orbital Hubbard model, first principles techniques to calculate the electronic hopping amplitudes between irons, and the real-space Hartree-Fock approximation to handle the many-body effects, here it is shown that the exotic block-AFM state is indeed stable at realistic electronic densities close to $n \sim 6.0$. Another state (the "CX" state) with parallel spins along the rungs and antiparallel along the legs of the ladders is close in energy. This state becomes stable in other portions of the phase diagrams, such as with hole doping, as also found experimentally via neutron scattering applied to KFe$_2$Se$_3$. In addition, the present study unveils other competing magnetic phases that could be experimentally stabilized varying either $n$ chemically or the electronic bandwidth by pressure. Similar results were obtained using two-orbital models, studied here via Lanczos and DMRG techniques. A comparison of the results obtained with the realistic selenides hoppings amplitudes for BaFe$_2$Se$_3$ against those found using the hopping amplitudes for pnictides reveals several qualitative similarities, particularly at intermediate and large Hubbard couplings.
description: 10 pages, 6 figures
Culicoides agas Wirth & Hubert
Creators: name: Bel Li, G. A.
name: Dyce, A. L.
name: Gopurenko, D.
name: Mitchell, A.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Culicoides
Culicoides agas

description: Culicoides agas Wirth & Hubert
 Culicoides agas Wirth & Hubert 1989:438. (Figs 1, 5, 9, 10, 17, 21, 22, 29, 31, 35, 36, 40, 41, 42, 53) Culicoides agas, Dyce 1996:114 (redescription of female and description of male) Culicoides agas, Dyce et al. 2007:43 (female wing illustrated).
 Non-type material examined. PAPUA NEW GUINEA: Sio, 13.Oct.1960, B. McMillan (Ƥ ANIC); Lae, 22.Mar.1963, beach, J. Sedlacek (Ƥ ANIC); Bougainville (S), Arawa Pl'n nr Kieta, 1m, 11.May.1956, J.L. Gressitt (3 Ƥ BPBM). SOLOMON ISLANDS: Guadalcanal, Tambea Village Beach, 13.Jan.1974 net 0700–0715 hr E.J. Reye (Ƥ, 3 3, ANIC).
 Diagnosis. Eyes with interfacetal hairs, tibial comb with five spines and fourth tarsal segment chordate in both sexes. Female with SCo distribution 1,(2),3,(4),5–10, with single STc and more than two STl on 2–8; SCh fewer than four on 2–7 and absent from 8–13. Male with antennae entirely feminised, lacking plume aristae, aedeagus with deep basal arch, ninth tergite with well developed apicolateral processes.
 Description. Wirth & Hubert (1989) and Dyce (1996) adequately described the adult male and female of this species.
 Immatures. Unknown
 Distribution. Indonesia: Maluku; Papua New Guinea; Solomon Is (Fig 53).
 Biology. Wirth & Hubert (1989) summarised the known biology of this species noting that it is regarded as a severe pest of humans near the seashore but did not travel inland to feed. Collection data of specimens examined in this study support the contention that this species occupies coastal habitats. Dyce (1996) suggested that the feminised antenna of male C. agas reflected a non-swarming mating strategy.
 Remarks. The antennal sensilla arrangement of both sexes of C. agas differs significantly from the other three species of the Immaculatus Group. The presence of SCo and lack of SCh on distal flagellomeres and the shape of the palpal pit of the female, the feminisation of the male antenna, tibial comb and chordate 4th tarsal segment of both sexes separate this species from the others in the group.
description: Published as part of Bel Li, G. A., Dyce, A. L., Gopurenko, D. & Mitchell, A., 2013, Revision of the Immaculatus Group of Culicoides Latreille (Diptera: Ceratopogonidae) from the Australasian Region with description of two new species, pp. 15-37 in Zootaxa 3680 (1) on pages 23-24, DOI: 10.11646/zootaxa.3680.1.4, http://zenodo.org/record/218308
Pachytricha Hope 1841
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pachytricha

description: Pachytricha Hope, 1841a
[5 species].
Type species Pachytricha castanea Hope, 1841, by monotypy.
Note: Burmeister (1855) incorrectly spelt Pachytricha as “ Pachytrichia ”.
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 127, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
E/D pHEMT Multi Frequency Generator GaAs MMIC for Aerospace Applications
Creators: name: Detratti, Marco
name: Chuan, Jeffrey
name: Pascual, Juan Pablo
name: García, José Luis
name: Cabo, Javier
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper presents the design and performance of a multi frequency generator MMIC to be used in transmit/receive modules for S band transponders. The technology used is a European commercial Enhancement/Depletion (E/D)pHEMT process,compatible with low noise reception.Quasi-monolithic Voltage Controlled Oscillator (VCO),divide-by-four digital frequency divider,active frequency multiplier-by-three and relative power dividers and buffers have been integrated into a single chip to generate all the system frequencies in a flexible architecture. Measured phase noise of the VCO depends on the external resonator and varactor used.Values of –105dBc/Hz@100KHz have been measured with external high Q resonator which is comparable to best performance reported of GaAs based VCOs.The frequency divider by four has an operating window from 30 MHz to >4GHz and an output power of more than 4 dBm.Multiplier by three provides more than 5 dBm in each of the two outputs with adjustable level of harmonics.
HSA-based multi-target combination therapy: regulating drugs’ release from HSA and overcoming single drug resistance in a breast cancer model
Creators: name: Gou, Yi
name: Zhang, Zhenlei
name: Li, Dongyang
name: Zhao, Lei
name: Cai, Meiling
name: Sun, Zhewen
name: Li, Yongping
name: Zhang, Yao
name: Khan, Hamid
name: Sun, Hongbing
name: Wang, Tao
name: Liang, Hong
name: Yang, Feng
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Biophysics
Biochemistry
Space Science
Medicine
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer
Hematology

description: Multi-drug delivery systems, which may be promising solution to overcome obstacles, have limited the clinical success of multi-drug combination therapies to treat cancer. To this end, we used three different anticancer agents, Cu(BpT)Br, NAMI-A, and doxorubicin (DOX), to build human serum albumin (HSA)-based multi-drug delivery systems in a breast cancer model to investigate the therapeutic efficacy of overcoming single drug (DOX) resistance to cancer cells in vivo, and to regulate the drugs’ release from HSA. The HSA complex structure revealed that NAMI-A and Cu(BpT)Br bind to the IB and IIA sub-domain of HSA by N-donor residue replacing a leaving group and coordinating to their metal centers, respectively. The MALDI-TOF mass spectra demonstrated that one DOX molecule is conjugated with lysine of HSA by a pH-sensitive linker. Furthermore, the release behavior of three agents form HSA can be regulated at different pH levels. Importantly, in vivo results revealed that the HSA–NAMI-A–Cu(BpT)Br–DOX complex not only increases the targeting ability compared with a combination of the three agents (the NAMI-A/Cu(BpT)Br/DOX mixture), but it also overcomes DOX resistance to drug-resistant breast cancer cell lines.
Six-Port Receiver Front-End MMIC for V-Band MBS Applications
Creators: name: Brabetz, T.
name: Fusco, Vincent F.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: A V-band six-port receiver front-end MMIC for 65.5 GHz has been designed, manufactured, and measured. The circuit combines all the essential functions, namely the six-port and three GM Schottky diode detectors, on a single 3.0 mm
Public hearing before Senate Special Committee to Study Coastal and Ocean Pollution to inquire into the problems, causes, and solutions concerning debris which wash up on the New Jersey shore : September 24, 1986, Port Reading Fire House, Woodbridge, New Jersey.
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1986

description: The purpose of the hearing is to inquire into the problems, causes, and solutions concerning plastics, other floatables, and debris which wash up on the New Jersey shore.
A 5GHz-Band On-Chip Matching CMOS MMIC Front-End
Creators: name: Ueda, Hiro-Omi
name: Shinjo, Shintaro
name: Nabeno, Yasuhiro
name: Ono, Masayoshi
name: Ohnakado, Takahiro
name: Murakami, Takaaki
name: Furukawa, Akihiko
name: Hashizume, Yasushi
name: Nishikawa, Kazuyasu
name: Mori, Takeshi
name: Yamakawa, Satoshi
name: Oomori, Tatsuo
name: Suematsu, Noriharu
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: A 5GHz--band CMOS MMIC front-end is developed,which includes a two-stage power amplifier (PA)with a single-stage push-pull driver (DRV),a three- stage low noise amplifier (LNA),and a transmit/receive (T/R)switch.The high current on-chip matching spiral inductor is used for the on-chip matching PA.On-chip matching configuration enables these circuits to connect internally.The IC performs 14.8dBm transmit power,and 4.1dB receiver noise figure at 5.2GHz.
A Balanced Sub-Harmonic Cold FET Mixer for 40GHz Communication Systems
Creators: name: Butterworth, Peter
name: Charbonniaud, C.
name: Campovecchio, M.
name: Nallatamby, Jean-Christophe
name: Monnier, Marc
name: Lajugie, Monique
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper reports a novel MMIC balanced sub-harmonic cold FET mixer for MVDS applications using 0.15mm GaAs pHEMT.The mixer,which includes a LO buffer amplifier,was optimized for highly linear up- conversion performance in the 42-43.5GHz RF band,19.5- 20.5GHz LO band and 2.45-3.45 GHz IF band.A dedicated simulation method has been developed to optimize conversion loss and determine optimum matching.To achieve better (2LO-to-RF)isolation a specific balanced architecture for sub-harmonic mixing has been elaborated. The first measurements of the fabricated MMIC circuit show 13,5dB conversion losses associated to high IF input power at 1dB compression of 15dBm,and (2LO-to-RF) rejection of 20dB in reasonable agreement with simulation results.
Supplementary Material: Single-Cell Stochastic Modeling of the Action of Antimicrobial Peptides on Bacteria from Single-cell stochastic modelling of the action of antimicrobial peptides on bacteria
Creators: name: Teimouri, Hamid
name: Nguyen, Thao N.
name: Kolomeisky, Anatoly B.
Publisher: name: The Royal Society
Year: 2021
Subjects: Biophysics
Computational Biology

description: Antimicrobial peptides (AMPs) produced by multi-cellular organisms as their immune system’s defence against microbes are actively considered as natural alternatives to conventional antibiotics. Although substantial progress has been achieved in studying the AMPs, the microscopic mechanisms of their functioning remain not well understood. Here, we develop a new theoretical framework to investigate how the AMPs are able to efficiently neutralize bacteria. In our minimal theoretical model, the most relevant processes, AMPs entering into and the following inhibition of the single bacterial cell, are described stochastically. Using complementary master equations approaches, all relevant features of bacteria clearance dynamics by AMPs, such as the probability of inhibition and the mean times before the clearance, are explicitly evaluated. It is found that both processes, entering and inhibition, are equally important for the efficient functioning of AMPs. Our theoretical method naturally explains a wide spectrum of efficiencies of existing AMPs and their heterogeneity at the single-cell level. Theoretical calculations are also consistent with existing single-cell measurements. Thus, the presented theoretical approach clarifies some microscopic aspects of the action of AMPs on bacteria.
High Performance 50nm T-Gate In0.52A10.48As/In0.53Ga0.47As Metamorphic High Electron Mobility Transistors
Creators: name: Cao, Xin
name: Thayne, Iain
name: Thoms, Stephen
name: Holland, Martin
name: Stanley, Colin
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: We report the performance of 50 nm gate length metamorphic GaAs HEMTs with maximum transconductance(gm ) of 1200 mS/mm and current cut-off frequency(fT ) of 300 GHz. The devices were fabricated with a novel UVIII/PMMA T-gate resist stack and a non-selective “digital” wet etch gate recess technology which results in a highly uniform, high yield sub-100 nm HEMT technology.
title: How does fishing alter marine populations and ecosystems sensitivity to climate? An introduction
Creators: name: Planque, Benjamin
name: Bernal, Miguel
Publisher: name: ASC 2009 - Theme session F
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.We conclude that the understanding of climate-fishing interactions is still in its infancy. This calls for increasing efforts in studying the interactions between the effects climate and fishing, in particular in a context of global climate change and globalised fisheries.