cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Ferrite_dielectric interface and its applications
Creators: name: Akyol, Ahmet Soydan
name: Davis, Lionel Edward
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: A single ferrite/dielectric interface (incidence from ferrite side), with the bias direction transverse to the direction of propagation is analysed. Reflection and transmission coefficient expressions are obtained and plotted with respect to frequency and angle of incidence.
Sda full-wave analysis of boxed multistrip lines of finite thickness embedded in a layered lossy medium
Creators: name: Deleniv, A.
name: Gashinova, M.
name: Vendik, I. B.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: Spectral-domain approach (SDA) is applied to modeling propagation characteristics of multiconductor structure on superconducting strip lines with signal strips and ground planes of finite thickness in lossy layered media. Equivalent surface impedance is used to transform the superconducting strip of finite thickness into an infinitely thin strip. A novel procedure of a calculation of the equivalent surface impedance is proposed. Two sets of basis functions (Chebyshev and Legendre polynomials) are compared by their ability to accurate modeling of microwave losses in the structure. The model applicability is illustrated by numerical results compared with experimental and simulated data.
Pseudotocama Keith 2008
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pseudotocama

description: Pseudotocama Keith, 2008
[1 species].
Type species Pseudotocama minima Keith, 2008, 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 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Role of ghrelin and ghrelin o-acyltransferase in the maintenance of maternal glucose homeostasis in calorie-restricted mice
Creators: name: Trivedi, Arjun
Publisher: name: University of British Columbia
Year: 2013

description: Ghrelin is a hormone that regulates energy homeostasis and is expressed in the stomach, hypothalamus and pituitary of humans and rodents. Ghrelin circulates as acylated (AG) and unacylated (UAG) ghrelin. Acylation is mediated by ghrelin O-acyltransferase (GOAT) and both forms of ghrelin are degraded by plasma proteases. Maintenance of euglycemia is important during pregnancy, where transplacental transfer of glucose is required for optimal fetal outcome. Maternal malnutrition is associated with decreased substrate availability and is a risk for hypoglycemia. AG prevents hypoglycemia in calorie-restricted (CR) mice by stimulating growth hormone (GH) release however its role in pregnancy remains unknown. I hypothesize that CR causes lower blood glucose in pregnant (P) compared to non-pregnant (NP) mice and that the GOAT-ghrelin axis is part of the response to this hypoglycemia. To determine ghrelin’s role in glucose homeostasis during pregnancy, wild-type (WT) and GOAT-KO (KO) mice were time-mated and fed-freely (FF) or CR by 50% for one week beginning at day 10.5 after conception. KO mice showed reduced fertility as conception was rare compared to WT animals. Unexpectedly, KO-CR mice also showed pregnancy termination early after CR was started and failed to survive to day 18 (=sacrifice), suggesting that AG plays a critical role in maintaining energy homeostasis during pregnancy. To further investigate the effect of ghrelin during pregnancy, several parameters of energy metabolism were analyzed: body composition, blood glucose, plasma AG, UAG, GH, GOAT/ghrelin expression, hepatic glycogen and PCK1 expression. I demonstrate that CR affects glucose metabolism more severely in WT-P and KO-NP mice (which cannot produce AG) compared to WT-NP mice. The additive effect of pregnancy and CR in GOAT-KO mice increases the severity of hypoglycemia. I propose that in WT animals, an increase in AG and UAG levels, whether due to increased production, decreased degradation, or both, serves to mitigate the decrease in blood glucose. The mechanisms of action of AG remain unclear but may involve stimulation of glycogenolysis and/or gluconeogenesis directly or indirectly (via stimulation of GH). My work supports a physiological role for the AG/UAG pathway in the regulation of blood glucose concentrations during pregnancy.
Non-zero $θ_{13}$ and CP violation in a model with $A_4$ flavor symmetry
Creators: name: Ahn, Y. H.
name: Kang, Sin Kyu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by recent observations of non-zero $θ_{13}$ from the Daya Bay and RENO experiments, we propose a renormalizable neutrino model with $A_4$ discrete symmetry accounting for deviations from the tri-bimaximal mixing pattern of neutrino mixing matrix indicated by neutrino oscillation data. In the model, the light neutrino masses can be generated by radiative corrections, and we show how the light neutrino mass matrix can be diagonalized by the Pontecorvo-Maki-Nakagawa-Sakata mixing matrix whose entries are determined by the current neutrino data including the Daya Bay result. We show that the origin of the deviations from the TBM mixing is non-degeneracy of the neutrino Yukawa coupling constants, and unremovable CP phases in the neutrino Yukawa matrix give rise to both low energy CP violation measurable from neutrino oscillation and high energy CP violation.
description: Two figures are added more (24 pages, 13 figures). Version to appear in Physical Review D
Time operator in QFT with Virasoro constraints
Creators: name: Wang, Zhi-Yong
name: Qiu, Qi
name: Xiong, Cai-Dong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Time operator is studied on the basis of field quantization, where the difficulty stemming from Pauli's theorem is circumvented by borrowing ideas from the covariant quantization of the bosonic string, i.e., one can remove the negative energy states by imposing Virasoro constraints. Applying the index theorem, one can show that in a different subspace of a Fock space, there is a different self-adjoint time operator. However, the self-adjoint time operator in the maximal subspace of the Fock space can also represent the self-adjoint time operator in the other subspaces, such that it can be taken as the single, universal time operator. Furthermore, a new insight on Pauli's theorem is presented.
description: 13 pages, No figure, to be published in Physics Letters B
Sub-harmonic and rational synchronization for phase-noise improvement
Creators: name: Ver Hoeye, S.
name: Gutiérrez, L.
name: Sancho, S.
name: Suárez, A.
name: González, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: In an injected oscillator, synchronization bands (or Arnold tongues) are theoretically obtained at rational ratios between the frequencies of the generator and the self-oscillation. Here an in-depth analysis of this phenomenon is carried out. A simple and accurate technique is presented for the harmonic-balance prediction of the subharmonic and rational synchronization bands. Two designs of a synchronized MESFET-based oscillator at the respective ratios ¼ and a ¾ are presented, with the simulation and measurement of the steady-state regime. A good improvement of the free-running oscillator phase noise has been achieved.
Prospect of microwave negasensors application for ecological monitoring abstract
Creators: name: Molchanov, Pavlo
name: Mulyar, Pavel
name: Podobna, Yulia
name: Checkotun, Victoria
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: The principles of operation of new microwave sensors on circuits with negative resistance based - negasensors has been presented. Several negasensors’ circuits with capacitive and inductive resistance have been described. Patents protect all presented circuits of negasensors. It was shown that negative active resistance could be used for sensitivity increasing as well as negative inductance and capacitance. Negasensors have high sensitivity, noise immunity and could be manufactured as a single chip without wireless signal transfer. It is necessary to notice that negasensor’s sensitivity increases along with the frequency. Prospects of negasensors application at distributed multipoint-measuring systems for ecological monitoring and remote measurements are described. Negasensors could be also applied for microwave optic transformation of signals in telecommunicational networks.
Ramilia Kolbe 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Ramilia

description: Ramilia Kolbe, 1894
[3 species].
Type species Rhopaea pruinosa Harold, 1878, 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 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Boundary coupling of Lie algebroid Poisson sigma models and representations up to homotopy
Creators: name: Velez, Alexander Quintero
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A general form for the boundary coupling of a Lie algebroid Poisson sigma model is proposed. The approach involves using the Batalin-Vilkovisky formalism in the AKSZ geometrical version, to write a BRST-invariant coupling for a representation up to homotopy of the target Lie algebroid or its subalgebroids. These considerations lead to a conjectural description of topological D-branes on generalized complex manifolds, which includes A-branes and B-branes as special cases.
description: 24 pages, no figures; v2: published version
Sub-Micron CMOS Characterisation for Single Chip Wireless
Applications
Creators: name: Toner, B.
name: Fusco, V.F.
name: Alam, M.S.
name: Armstrong, G.A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: This paper describes a multifunctional, electronically reconfigurable, small/large signal load pull measurement system and its integrated use with BSIM 3v3 for modelling of sub-micron CMOS transistors and sub-circuits. This turnkey measurement system can be electronically configured from a battery of instruments in order to characterise minimum noise, optimum power, intermodulation, dc and S-parameters, together with harmonic response and dynamic load line information under both source and load pull conditions. The instrumentation provides validation data against the BSIM physical model simulator. Hence, for the first time measurement of all of the significant devices parameters can be made for the device operated under all possible primary modes for model validation so that optimal circuit design can be carried out in a holistic fashion.
Creation of two vortex-entangled beams in a vortex beam collision with a plane wave
Creators: name: Ivanov, I. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Physics of photons and electrons carrying orbital angular momentum (OAM) is an exciting field of research in quantum optics and electron microscopy. Usually, one considers propagation of these vortex beams in a medium or external fields and their absorption or scattering on fixed targets. Here we consider instead a beam-beam collision. We show that elastic scattering of a Bessel vortex beam with a counterpropagating plane wave naturally leads to two vortex-entangled outgoing beams. The vortex entanglement implies that the two final particles are entangled not only in their orbital helicities but also in opening angles of their momentum cones. Our results are driven by kinematics of vortex-beam scattering and apply to particle pairs of any nature: e-gamma, e^+e^-, ep, etc. This collisional vortex entanglement can be used to create pairs of OAM-entangled particles of different nature, and to transfer a phase vortex, for example, from low-energy electrons to high-energy protons.
description: 4 pages, 2 figures; v2: title modified, introduction rewritten and expanded, results unchanged
A novel proximity coupled active integrated antenna
Creators: name: Vajha, Sasidhar
name: Shastry, Prasad
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: In this paper, a novel design approach and measured results of a compact proximity coupled active integrated antenna (PCAIA) are presented. A new type of antenna feed structure is proposed. A single self-biased (through the RF port), two-stage low noise amplifier has been integrated with a proximity coupled patch antenna having a new feed structure. The proposed approach is useful in the design of compact PCAIA with good radiation characteristics for applications in microwave wireless systems.
Electrochemically controlled interaction of liposomes with a solid-supported octadecanol bilayer
Creators: name: Musgrove, Amanda
Publisher: name: University of British Columbia
Year: 2014

description: Transmembrane proteins and ion channels are a major target for new drug development. Incorporating them into sensors requires a method to produce stable, easily modifiable solid-supported phospholipid bilayers. This thesis demonstrates a method for using potential control on the electrode to mediate liposome adsorption, allowing them to interact with a previously deposited octadecanol layer through potential-created defects. Compression isotherms and electrochemical measurements were used to establish the effect of the incorporation of a small amount of fluorescent dye on the octadecanol layers. Using these fluorescently-labelled octadecanol layers, electrochemical measurements both independently and coupled with in-situ fluorescence measurements were used to characterize the interaction of liposomes with these layers under potential control. It was found that application of moderate potentials - more negative than the onset of defect formation but less than that required for desorption of the layer - facilitated the effective incorporation of liposome material into the octadecanol bilayer. The length of time spent at the poration potential had little effect on the degree of liposome interaction with the adsorbed layer. The incorporation was seen as a change in the double-layer capacitance and the creation of small fluorescent structures in the layer after exposure to liposomes at the poration potential. A shift in the characteristic desorption potential was also seen with liposome incorporation. Atomic force microscopy coupled in-situ with electrochemical control was also used to investigate the interaction of liposomes with the adsorbed octadecanol layer. The structure of the adsorbed layer was observed and with liposomes present in solution, the creation of three-dimensional structures similar in nature to those seen by fluorescence was noted. The incorporation of liposomes into the octadecanol was shown to be easily controlled by application of an electrical potential, opening a path for a new method of producing supported lipid bilayers in-situ for biosensing applications.
Replica theory for learning curves for Gaussian processes on random graphs
Creators: name: Urry, Matthew J.
name: Sollich, Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (stat.ML)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Statistical physics approaches can be used to derive accurate predictions for the performance of inference methods learning from potentially noisy data, as quantified by the learning curve defined as the average error versus number of training examples. We analyse a challenging problem in the area of non-parametric inference where an effectively infinite number of parameters has to be learned, specifically Gaussian process regression. When the inputs are vertices on a random graph and the outputs noisy function values, we show that replica techniques can be used to obtain exact performance predictions in the limit of large graphs. The covariance of the Gaussian process prior is defined by a random walk kernel, the discrete analogue of squared exponential kernels on continuous spaces. Conventionally this kernel is normalised only globally, so that the prior variance can differ between vertices; as a more principled alternative we consider local normalisation, where the prior variance is uniform.
Resolving sets for Johnson and Kneser graphs
Creators: name: Bailey, Robert F.
name: Cáceres, José
name: Garijo, Delia
name: González, Antonio
name: Márquez, Alberto
name: Meagher, Karen
name: Puertas, María Luz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C12, 05E30, 05B05, 51E14

description: A set of vertices $S$ in a graph $G$ is a {\em resolving set} for $G$ if, for any two vertices $u,v$, there exists $x\in S$ such that the distances $d(u,x) \neq d(v,x)$. In this paper, we consider the Johnson graphs $J(n,k)$ and Kneser graphs $K(n,k)$, and obtain various constructions of resolving sets for these graphs. As well as general constructions, we show that various interesting combinatorial objects can be used to obtain resolving sets in these graphs, including (for Johnson graphs) projective planes and symmetric designs, as well as (for Kneser graphs) partial geometries, Hadamard matrices, Steiner systems and toroidal grids.
description: 23 pages, 2 figures, 1 table
Thermal resistance extraction of power transistor using electric field simulation
Creators: name: Zhu, Yu
name: Cai, Q.
name: Gerber, Jason
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: The use of electric field simulation to extract thermal resistance of power transistor for circuit analysis is described. Compared with conventional techniques based on thermal field simulation, our approach provides directly usable results for circuit analysis, and is easier to be accessed by device and circuit engineers. Instead of conventionally used lumped elements, a multi-port black box is used to represent the thermal circuit, which makes the thermal circuit implementation easy for multi-finger devices. The technique proposed is illustrated by the example of multi-finger HBT.
New Probing Technology Now Enables Impedance controlled On-Wafer Probing
Creators: name: Wollitzer, M.
name: Thies, S.
name: Schott, S.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: The development of coaxial and planar RF measurement systems demands a completely different approach as currently used in the low frequency field. In order to achieve minimum reflections in an RF cable, a defined wave resistance must be kept up along its whole length. It is therefore of primary importance to choose appropriate manufacturing techniques, in this case micromachining, after a thorough analysis of all possibilities for HF transmission. We will show that applying these principles to the tips used to contact planar circuits results in the smallest possible impairment to the signals to be transferred.
Syntaxipholis Brenske 1903
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Syntaxipholis

description: Syntaxipholis Brenske, 1903a.
Type species Pseudopholis kuiluensis Brenske, 1898, by original designation.
Synonymy by Burgeon (1946b).
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 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Lions and tigers and bears : an investigation of the state of conservation in zoos
Creators: name: Callahan, Megan Marie
Publisher: name: University of British Columbia
Year: 2013

description: Zoos have historically been institutions focused on the recreational and entertainment value of their animal collections. However, zoos in the contemporary period have begun to embrace a conservation mindset and employ tools such as conservation projects to encourage positive impacts on species in the wild. This transition is traced from the earliest zoos to the present day and the efficacy of zoo conservation efforts is examined. There are questions regarding the zoo projects including species involved, the nature of project selection, and the stated goals. To address these questions, a species-based analysis of conservation projects at conservation-focused zoos is conducted. Initially, pressures involving zoos’ operating conditions and their conservation practices are reviewed to highlight the challenges faced by zoos. Secondly, a quantitative analysis of the species involved in conservation projects is undertaken. Statistics related to the animals contained within the projects are then compared with animal threat levels as outlined by the International Union for the Conservation of Nature (IUCN) Red List. A preference for species in the following order was found: mammals, birds, reptiles, amphibians, and terrestrial invertebrates. Additional information is gathered by personal interviews with the zoos profiled. This allows for a more comprehensive discussion of pressures where business concerns and protecting wildlife must be managed simultaneously. Specific creative approaches to projects and additional strategies to further impact conservation are subsequently explored.
Bidiagonal pairs, the Lie algebra sl_2, and the quantum group U_q(sl_2)
Creators: name: Funk-Neubauer, Darren
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B37 (Primary) 15A21, 15A30, 17B10, 81R50 (Secondary)

description: We introduce a linear algebraic object called a bidiagonal pair. Roughly speaking, a bidiagonal pair is a pair of diagonalizable linear transformations on a finite-dimensional vector space, each of which acts in a bidiagonal fashion on the eigenspaces of the other. We associate to each bidiagonal pair a sequence of scalars called a parameter array. Using this concept of a parameter array we present a classification of bidiagonal pairs up to isomorphism. The statement of this classification does not explicitly mention the Lie algebra $\SL$ or the quantum group $\uq$. However, its proof makes use of the finite-dimensional representation theory of $\SL$ and $\uq$. In addition to the classification we make explicit the relationship between bidiagonal pairs and modules for $\SL$ and $\uq$.
description: 46 pages, accepted for publication in the Journal of Algebra and its Applications, new introduction, new conclusion, and typos fixed
Advances in Thin Film Techniques for Optical, Microwave and
Millimeter wave Circuit Applications
Creators: name: Callery, K.
name: Lowbridge, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: In this paper, the high volume process (as developed by Aeroflex MIC Technology) for depositing thin films comprising TaN, Ti, Ti/Pd alloy, Cu, Ni, Au (TTPCNA) onto materials such as alumina and aluminium nitride is presented. The benefits of this tested methodology are realized by improved process control, a reduction in cycle time, and minimal operator intervention in the process. These important considerations in today’s competitive manufacturing environment translate into higher yields, reduced cost to the customer and reliability in the field. This high volume line has a current run rate in excess of 24,000 substrates per week as it is presently configured with the ability to expand to 35,000 substrates per week with minimal investment. We then present a case study of the application of this technology, together with the ability to pre-deposit gold-tin solder, in the exacting application of mounting Laser diodes onto thin film heatsinks – which also convey the microwave / millimeter wave signal.
Orbital Decay and Evidence of Disk Formation in the X-ray Binary Pulsar OAO 1657-415
Creators: name: Jenke, P. A.
name: Finger, M. H.
name: Wilson-Hodge, C. A.
name: Camero-Arranz, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: OAO 1657-415 is an eclipsing X-ray binary wind-fed pulsar that has exhibited smooth spin-up/spin-down episodes and has undergone several torque reversals throughout its long history of observation. We present a frequency history spanning nearly 19 years of observations from the Burst and Transient Source Experiment (CGRO/BATSE) and from the Gamma-Ray Burst Monitor (Fermi/GBM). The analysis suggests two modes of accretion: one resulting in steady spin-up during which we believe a stable accretion disk is present and one that results in what appears to be a random walk in spin frequency where an unstable accretion disk forms alternating in direction ("flip flop"). Orbital elements of the pulsar system are determined at several intervals throughout this history. With these ephemerides, statistically significant orbital decay ($\dot{P}/P =(-3.40 \pm0.15)\times10^{-6} \mathrm{yr^{-1}}$) is established suggesting a transition between wind-fed and disk-mediated accretion.
Ravautiana Lacroix 1991
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Ravautiana

description: Ravautiana Lacroix, 1991
[1 species].
Type species Ravautiana jucunda Lacroix, 1991, 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 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Topological Group Cohomology with Loop Contractible Coefficients
Creators: name: Fuchssteiner, Martin
name: Wockel, Christoph
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E41

description: We show that for topological groups and loop contractible coefficients the cohomology groups of continuous group cochains and of group cochains that are continuous on some identity neighbourhood are isomorphic. Moreover, we show a similar statement for compactly generated groups and Lie groups holds and apply our results to different concepts of group cohomology for finite-dimensional Lie groups.
description: Latex, 12 pages, minor changes w.r.t. v1 (final version). To appear in Topology Appl
Frequency Dependence of HEMT Under Optical Illumination
Creators: name: Yajian, Huang
name: Alphones, Arokiaswami
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: An analysis of the AC characteristics of Al-GaAs/GaAs HEMT under illumination with modulated light has been carried out for small signal condition. A new model for the photovoltage calculation is outlined. The effect of the signal frequency on the photoconduc-tive current is evaluated, the results show that photo-conductive current is very small and can be neglected in calculation. The frequency dependence of photovoltage along with 2-DEG charge density, drain-source current and transconductance of the device have been studied analytically for HEMT structure.
title: Outlier-robust Logistic Regression for Imbalanced Data
Creators: name: Priselac, Sanja
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Generalized linear model
subject: Bianco-Yohai estimator

description: Logistic regression represents a widely used classification method for modeling a binary response variable. Many exemplary cases of binary logistic regression employ data sets with an imbalanced distribution of the output variable and often include outliers – atypical observations in the data. Both outliers and an imbalanced class distribution can greatly reduce the predictive power of the classifier. Therefore, such data structures require a robust method suitable for imbalanced learning problems.This thesis proposes a robust logistic regression for imbalanced data sets based on the Bianco-Yohai estimator, a highly robust method for logistic regression. The imbalance learning problem is addressed by including the cost-sensitive features in the objective function for parameter estimation. Thus, the implementation involves adapting the iterative algorithm for computing the Bianco-Yohai estimator. The paper also proposes an additional method for detecting leverage points required for the weighted version of the estimator, which significantly expands the data domain in which the Bianco-Yohai estimator is applicable.The obtained cost-sensitive forms of the Bianco-Yohai estimator, in the weighted and original versions, are compared with the corresponding non-robust and non-cost-sensitive forms. The results of the simulation experiments and the use case with the imbalanced data set employed for credit scoring indicate the following. For imbalanced data sets, the inclusion of cost significantly improves the performance of the Bianco-Yohai estimator in both the original and weighted versions. Moreover, the methods provide better performance compared to logistic regression when the data contain bad leverage points. Thus, the cost-sensitive form of the Bianco-Yohai estimator, in both its original and weighted versions, provides a statistically reliable classifier for modeling imbalanced data containing outliers.
Evolution of LTCC technology for industrial applications
Creators: name: Massiot, Michel
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2002
Subjects: ING-INF/01 Elettronica

description: The LTCC (Low Temperature Cofired Ceramic) technology has been used for years in various applications like automotive (under the hood), data-processing, telecoms, datacoms, military and space, industrial, packaging. The evolution of the materials, processes and approach have reinforced its cost and performance attractivity. This is particularly true in the case of high frequency / optoelectronic products. This paper gives an overview of the enabling features of the LTCC technology for these applications, as well as an example of a 10 Gb/s transmitter.
Tensorial NSI and Unparticle physics in neutrino scattering
Creators: name: Barranco, J.
name: Bolanos, A.
name: Garces, E. A.
name: Miranda, O. G.
name: Rashba, T. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have analyzed the electron anti-neutrino scattering off electrons and the electron anti-neutrino-nuclei coherent scattering in order to obtain constraints on tensorial couplings. We have studied the formalism of non-standard interactions (NSI), as well as the case of Unparticle physics. For our analysis we have focused on the recent TEXONO collaboration results and we have obtained current constraints to possible electron anti-neutrino-electron tensorial couplings in both new physics formalisms. The possibility of measuring for the first time electron anti-neutrino-nucleus coherent scattering and its potential to further constrain electron anti-neutrino-quark tensorial couplings is also discussed.
description: 15 pages, 6 figures, 2 tables. Accepted for publication in International Journal of Modern Physics A
Semiregularity and obstructions of complete intersections
Creators: name: Iacono, Donatella
name: Manetti, Marco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We prove that, on a smooth projective variety over an algebraically closed field of characteristic 0, the semiregularity map annihilates every obstruction to embedded deformations of a local complete intersection subvariety with extendable normal bundle. The proof is based on the theory of L-infinity algebras and Tamarkin-Tsigan calculus on the de Rham complex of DG-schemes.
description: V2 typos corrected, 30 pages. V3 typos and references updated
Characteristics of GaAs HEMTs with Flip-Chip Interconnections
Creators: name: Ono, Naoko
name: Sasaki, Fumio
name: Arai, Kazuhiro
name: Iseki, Yuji
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2002
Subjects: ING-INF/01 Elettronica

description: A GaAs HEMT with flip-chip interconnections has been developed. There are various ground current passes for the HEMT on surface of the GaAs chip in this assembly structure, each pass depending on the transmission line type for the chip. We evaluated the high-frequency characteristics of the HEMT TEGs with flip-chip interconnection for three types of the transmission lines: with a microstrip line (MSL), with a coplanar waveguide (CPW), and with an inverted microstrip line (IMSL). All three types of TEGs had similar values of a maximum available power gain (MAG) at 30 GHz. However, the IMSL-type TEG, which had superior characteristics in high-frequency ranges of more than 30 GHz, was chosen as the most suitable type. The IMSL-type TEG had an MAG of 10.02 dB and a Rollett stability factor K of 1.20 at 30 GHz.
Renaudiana Lacroix 1993
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Renaudiana

description: Renaudiana Lacroix, 1993
[2 species].
Type species Renaudiana ranomandriensis Lacroix, 1993, 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 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Remark About Hamiltonian Formulation of Non-Linear Massive Gravity in Stuckelberg Formalism
Creators: name: Kluson, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform the Hamiltonian analysis of the specific model of the non-linear massive gravity in Stuckelberg formalism where the square root structure is replaced by introducing auxiliary fields. We show that the constraint structure of given theory varies over the phase space and discuss possible consequences of this fact for the counting of the physical degrees of freedom.
description: 13 pages,v2:references added, vs3:Significant changes performed and new conclusion derived with confirms the absence of the ghosts. arXiv admin note: substantial text overlap with arXiv:1112.5267
Additional file 10 of Fungal and bacterial microbiome dysbiosis and imbalance of trans-kingdom network in asthma
Creators: name: Huang, Chunrong
name: Yu, Youchao
name: Du, Wei
name: Liu, Yahui
name: Dai, Ranran
name: Tang, Wei
name: Wang, Ping
name: Zhang, Chenhong
name: Shi, Guochao
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 10: Fig. S3. Circular representation of bacteriome communities in CON, naïve asthma and ICS asthma groups at phylum and genus level, visualized by Circos software. The outmost circles list names of three groups and bacteriome community composition. The length of the bars on the secondring represented the percentage of phyla or genera in three groups (left side of the diagram), and the percentage of sample in phyla or genus. The connecting lines inside the third circle link the phylum or genus to the groups and the width of the line indicates the relative abundance. The outset cycles were coloured according to the software default setting.
Funktionelle und radiologische Ergebnisse nach Arthrodesen der Sprunggelenke
Creators: name: Horn, Matthias
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2002
Subjects: Elektronische Publikation
Hochschulschrift
Zsfassung in engl. Sprache

description: In den Jahren 1994 bis 1999 behandelten wir 47 Patienten mit insgesamt 48 Arthrodesen im Bereich des oberen und/oder unteren Sprunggelenks. 41 Patienten mit 41 Arthrodesen konnten im Durchschnitt 29 (6-65) Monate nach erfolgter Arthrodese klinisch und radiologisch nachuntersucht werden. Als Hauptindikation führte in unserem Patientenkollektiv die symptomatische posttraumatische Arthrose zur Gelenkversteifung. Hinsichtlich der Arthrodesetechnik überwog die Kompressionsschraubenarthrodese bei weitem andere mögliche Methoden. Komplikationen beobachteten wir in 33 % der Fälle, wobei neben 4 tiefen Infektionen und 5 Arthrodeseninsuffizienzen blande postoperative Wundheilungsstörungen im Vordergrund standen. Die klinisch und radiologisch erhobenen Untersuchungsergebnisse wurden nach 3 Score-Systemen ausgewertet. Nach dem repräsentativen und international gebräuchlichen Score von KITAOKA konnten wir in unserem nachuntersuchten Patientenkollektiv insgesamt 68 % sehr gute und gute, 22 % befriedigende und 10 % schlechte Ergebnisse verzeichnen.
description: Between 1994 and 1999 we treated 47 patients with 48 arthrodesis in the area of the ankle joint and/or the the subtalar joint. 41 patients with 41 arthrodesis were examinated physical and radiographical for an average of 29 months (6-62 months) after the arthrodesis operation. As meanindication for arthrodesis in our patientgroup we concluded the symtomatic post-traumatic arthrosis. In reference to the arthrodesis technique the compression arthrodesis with scew fixation predominated other possibilities. Complications were found in 33% of the cases, superficial postoperative wound problems predominating 4 deep infections and 5 nonunions of arthrodesis. The clinical and radiographic results where evaluated following 3 score systems. By using the representative and international accepted score of KITAOKA we specified 68% very good and good, 22% satisfactory and 10% poor results.
Identifying influential spreaders and efficiently estimating infection numbers in epidemic models: a walk counting approach
Creators: name: Bauer, Frank
name: Lizier, Joseph T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce a new method to efficiently approximate the number of infections resulting from a given initially-infected node in a network of susceptible individuals. Our approach is based on counting the number of possible infection walks of various lengths to each other node in the network. We analytically study the properties of our method, in particular demonstrating different forms for SIS and SIR disease spreading (e.g. under the SIR model our method counts self-avoiding walks). In comparison to existing methods to infer the spreading efficiency of different nodes in the network (based on degree, k-shell decomposition analysis and different centrality measures), our method directly considers the spreading process and, as such, is unique in providing estimation of actual numbers of infections. Crucially, in simulating infections on various real-world networks with the SIR model, we show that our walks-based method improves the inference of effectiveness of nodes over a wide range of infection rates compared to existing methods. We also analyse the trade-off between estimate accuracy and computational cost, showing that the better accuracy here can still be obtained at a comparable computational cost to other methods.
description: 6 pages
HTCC based Ku/IF/BB Down Converter for satellite on board processing applications
Creators: name: Comparini, M.C.
name: Leone, C.
name: Montanucci, P.
name: Tursini, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2002
Subjects: ING-INF/01 Elettronica

description: This paper presents the demonstration of an ultra compact High Temperature Cofired Ceramic (HTCC) based down converter for satellite on board processing equipment. The down converter is composed of three sections: the RF Front end in KU Band, the first IF at 400 MHz and a base-band chain at 50 MHz. The overall gain is of 90dB and the OIP3 is of 20 dBm. GaAs MMICs, Si RF-IC and ceramic saw filter have been integrated on a compact HTCC module of a size of 59x66x6 mm.
Critical Dynamics in Glassy Systems
Creators: name: Parisi, Giorgio
name: Rizzo, Tommaso
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Critical dynamics in various glass models including those described by mode coupling theory is described by scale-invariant dynamical equations with a single non-universal quantity, i.e. the so-called parameter exponent that determines all the dynamical critical exponents. We show that these equations follow from the structure of the static replicated Gibbs free energy near the critical point. In particular the exponent parameter is given by the ratio between two cubic proper vertexes that can be expressed as six-point cumulants measured in a purely static framework.
description: 24 pages, accepted for publication on PRE. Discussion of the connection with MCT added in the Conclusions
Rhadinolontha Arrow 1930
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Rhadinolontha

description: Rhadinolontha Arrow, 1930
[1 species].
Type species Rhadinolontha mimetica Arrow, 1930, 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
Antiallodynia and surgical immobility produced by the non-proteinogenic brain impermeant amino acid, isovaline
Creators: name: Whitehead, Ryan Arthur
Publisher: name: University of British Columbia
Year: 2013

description: This thesis describes research stemming from investigation of the novel nonproteinogenic amino acid, isovaline. The first chapter is a background for the field of study. The second chapter investigates peripheral GABAB receptor-mediated mechanisms of action of isovaline, ɤ-aminobutyric acid (GABA), and baclofen. The third chapter details experimental evidence demonstrating that a combination of central hypnosis and peripheral analgesia produces general anesthesia. The fourth chapter describes the development and evaluation of a novel model of human trigeminal allodynia, a feature of intractable and severe pain in trigeminal neuralgia. The mechanism of action of isovaline, as for GABA and baclofen, was found involve peripheral GABAB receptors, revealed through attenuation of peripheral prostaglandin E₂ (PGE₂)-induced allodynia. This mechanism was tested by reversal of allodynia by the GABAB antagonist CGP52432 and potentiation of allodynia by the GABAB positive modulator CGP7930. Immunohistochemical staining showed confluence of GABAB₁ and GABAB₂ subunits on free nerve endings and keratinocytes. Peripherally administered isovaline and GABA produced analgesia but no CNS depression, whereas baclofen produced analgesia accompanied by pronounced sedation and hypothermia. In a forced exercise model of osteoarthritic dysfunction isovaline restored joint operability lost presumably due to knee pain. Next, we hypothesized that co-administration of a peripherally restricted analgesic with a central hypnotic (isovaline co-administered with propofol) would produce general anesthesia in mice. We first demonstrated that isovaline and fentanyl produced surgical analgesia without appreciable sedation. Propofol alone produced hypnosis without analgesia or surgical anesthesia. When administered with hypnotic doses of propofol, coadministration of isovaline resulted in general anesthesia. Under fixed ratio hypnotic and analgesic dose ratios, propofol-isovaline anesthesia had a markedly higher therapeutic index than propofol-fentanyl. When co-administered with a fixed hypnotic dose of propofol, isovaline in contrast to fentanyl did not have a maximum tolerated dose (MTD). Next we describe an intracisternal strychnine mouse model of human trigeminal neuropathic pain is described. The model reflects the efficacy of clinical drug treatments as morphine administered intraperitoneally was not effective, but intracisternally injected carbamazepine epoxide provided pain relief. Isovaline applied near the spinal trigeminal nucleus was effective in this model, validating its utility in detecting efficacy of novel analgesics.