cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Corporate taxation and its reform: the effects on corporate financing decisions in Italy
Creators: name: Bontempi, Maria Elena
name: Giannini, Silvia
name: Golinelli, Roberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: SECS-P/03 Scienza delle finanze

description: The aim of this paper is twofold. First, we measure the relationship between fiscal
variables and companies debt choices in Italy using a dynamic representation of the
modified pecking order model, where both trade-off and pecking order theories are
nested. Second, our estimation results are used, jointly with some tax simulations
undertaken with a company microsimulation tax-model (MATÍS), to assess the effects
on leverage of two recent tax reforms in Italy since 1996. Main results suggest that: (a)
fiscal effects are significant and robust explanations of firms’ financial behaviour; (b)
the reforms analysed are able to induce similar reductions in firms’ leverage, when
compared with the situation prevailing in 1996. However, the routes through which this
occurs are different (relative price in the first case, cash flow in the second), tracing
some important differences in the overall evaluation of the two reforms.
Haplidia Hope 1837
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Haplidia

description: Haplidia Hope, 1837, as Aplidia
[48 species and 4 additional subspecies].
Type species Melolontha transversa Fabricius, 1801, by original designation. In prevailing usage.
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 130, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Luminous and High Stellar Mass Candidate Galaxies at z ~ 8 Discovered in CANDELS
Creators: name: Yan, Haojing
name: Finkelstein, Steven L.
name: Huang, Kuang-Han
name: Ryan, Russell E.
name: Ferguson, Henry C.
name: Koekemoer, Anton M.
name: Grogin, Norman A.
name: Dickinson, Mark
name: Newman, Jeffrey A.
name: Somerville, Rachel S.
name: Dave, Romeel
name: Faber, S. M.
name: Papovich, Casey
name: Guo, Yicheng
name: Giavalisco, Mauro
name: Lee, Kyoung-soo
name: Reddy, Naveen
name: Cooray, Asantha R.
name: Siana, Brian D.
name: Hathi, Nimish P.
name: Fazio, Giovanni G.
name: Ashby, Matthew
name: Weiner, Benjamin J.
name: Lucas, Ray A.
name: Dekel, Avishai
name: Pentericci, Laura
name: Conselice, Christopher J.
name: Kocevski, Dale D.
name: Lai, Kamson
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: One key goal of the Hubble Space Telescope Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey is to track galaxy evolution back to z ~ 8. Its two-tiered "wide and deep" strategy bridges significant gaps in existing near-infrared surveys. Here we report on z ~ 8 galaxy candidates selected as F105W-band dropouts in one of its deep fields, which covers 50.1 square arcmin to 4 ks depth in each of three near-infrared bands in the Great Observatories Origins Deep Survey southern field. Two of our candidates have J<26.2 mag, and are > 1 mag brighter than any previously known F105W-dropouts. We derive constraints on the bright-end of the rest-frame ultraviolet luminosity function of galaxies at z ~ 8, and show that the number density of such very bright objects is higher than expected from the previous Schechter luminosity function estimates at this redshift. Another two candidates are securely detected in Spitzer Infrared Array Camera images, which are the first such individual detections at z ~ 8. Their derived stellar masses are on the order of a few x 10^9 M_sun, from which we obtain the first measurement of the high-mass end of the galaxy stellar mass function at z ~ 8. The high number density of very luminous and very massive galaxies at z ~ 8, if real, could imply a large stellar-to-halo mass ratio and an efficient conversion of baryons to stars at such an early time.
description: to appear in ApJ December 20, 2012 issue
Residential schooling and sources of Aboriginal disparity in Canada
Creators: name: Feir, Donna Leanne
Publisher: name: University of British Columbia
Year: 2013

description: Abstract Indigenous peoples throughout the world live in more difficult socio-economic circumstances than their non-indigenous counterparts. This dissertation investigates the long run economic and cultural consequences of one of the most infamous policies to affect Indigenous peoples: the forcible removal of children from their homes and their placement in boarding schools (also known as residential schools). These sorts of policies were instituted in numerous countries throughout the world, including the United States, Canada, and Australia, and they have been heavily criticized. The policies have often had the stated goal of cultural assimilation, are generally perceived to have been educational failures and to have harmed Indigenous peoples both directly and intergenerationally. I investigate these possibilities using several sources of variation. I find that attendance at a residential school is associated with both economic and cultural assimilation but I do not find strong evidence that this is transmitted intergenerationally. The results suggest that while residential schooling had significant impacts, it is likely not the predominate cause of the economic disparity observed today. To get a sense of plausible alternative explanations of Indigenous disparity in the Canada context, I finish by establishing some of the basic patterns in earnings differences between Indigenous groups and their non-indigenous counterparts.
Complementarity, coordination, and credit
Creators: name: Alessandro, Fedele
name: Mantovani, Andrea
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: SECS-P/06 Economia applicata

description: We consider a start-up firm which applies for a bank loan to implement a project based on
complementary activities. The firm has the possibility to improve the complementarity effect
by coordinating the activities. Coordination is costly and can be made either by using internal
human resources or by hiring a consulting firm. In the former case the choice of coordination
is not verifiable by the bank and a moral hazard problem arises, while in the latter information
is symmetric. The role of consulting services is thus to mitigate the informational problem.
Without consulting, the firm does not coordinate and either obtains no funding or the surplus
of the project is not maximized.
Educational choice, endogenous inequality and economic
development
Creators: name: Andergassen, Rainer
name: Nardini, Franco
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2004
Subjects: SECS-P/01 Economia politica

description: This paper investigates the mechanics through which wealth may, in the
long run, trickle down from the rich to the poor. In the presence of indivisibilities in investment
of human capital and impossibility of borrowing money, investment in education is financed
through an intergenerational transfer. In an OLG model where aggregate production requires
capital and both skilled and unskilled labour, it is shown that the long run equilibrium
outcome depends on the values of few key parameters. A complete characterisation of the
steady state is provided. Under some configurations of the parameter values a unique invariant
equilibrium exists where inequality vanishes asymptotically. Under others, multiple equilibria
exist and the equilibrium outcome crucially depends on the initial conditions of the system.
These equilibria are characterised by an negative relationship between inequality and economic
development.
On the role of human capital and instruments of assistance
for rural entrepeneurship and development: evidence from
a case study in mountainous  Italy
Creators: name: Meccheria, Nicola
name: Pellonib, Gianluigi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: SECS-P/09 Finanza aziendale

description: Fostering entrepreneurship as a tool for the creation and support of rural businesses is a
crucial goal for the integrated development and survival of rural economies. Despite the
recognition of entrepreneurship as one of the main determinants of rural economic
development, empirical research in this field is relatively sparse and the concept of rural
entrepreneurship remains largely unexplored. Thus, there is little evidence on the role and
function of rural entrepreneurs, the driving force behind the birth, survival and growth of
rural enterprises. The present work, emerging from a larger project on rural
entrepreneurship in the mountainous areas of southern Europe, aims to provide a
contribution to filling this gap in knowledge. In this paper we present and analyse the
results emerging from a questionnaire submitted to a sample of 123 entrepreneurs and rural
businesses in a mountainous area of central Italy. The paper focuses on the correlation
between entrepreneurial human capital and the adoption of instruments of assistance, and
provides an assessment on their role in stimulating entrepreneurship in the specific area. In
the light of the empirical results, we examine and propose potential policies for fostering
entrepreneurship and the development of the rural region under study.
Counting rule for Nambu-Goldstone modes in nonrelativistic systems
Creators: name: Hidaka, Yoshimasa
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The counting rule for Nambu-Goldstone modes is discussed using Mori's projection operator method in nonrelativistic systems at zero and finite temperatures. We show that the number of Nambu-Goldstone modes is equal to the number of broken charges, Q_a, minus half the rank of the expectation value of [Q_a,Q_b].
description: 5 pages, no figures; typos corrected; some discussion added and clarified
Spectra of sparse non-Hermitian random matrices: an analytical solution
Creators: name: Neri, I.
name: Metz, F. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present the exact analytical expression for the spectrum of a sparse non-Hermitian random matrix ensemble, generalizing two classical results in random-matrix theory: this analytical expression forms a non-Hermitian version of the Kesten-Mckay law as well as a sparse realization of Girko's elliptic law. Our exact result opens new perspectives in the study of several physical problems modelled on sparse random graphs. In this context, we show analytically that the convergence rate of a transport process on a very sparse graph depends upon the degree of symmetry of the edges in a non-monotonous way.
description: 5 pages, 5 figures, 12 pages supplemental material
Photonic integration for phased-array applications
Creators: name: Van Vliet, F.E.
name: Stulemeijer, J.
name: Benoist, K.W.
name: Smit, M.K.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: The use of photonics for phased-array applications has been discussed for quite some time. Main difficulties up to now have been the component count and cost for relatively complex systems. The advances in photonic integration are very promising to bring down both, as well as reduce volume and weight of phased-array beamforming networks as compared to their electrical counterparts. In addition, photonics allows for increased functionality for wide-bandwidth systems. This paper reports on these advances and indicates the strategy to applicable photonic phased-arrays.
Tabulation of PVI Transcendents and Parametrization Formulas (August 17, 2011)
Creators: name: Guzzetti, Davide
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34M55

description: The critical and asymptotic behaviors of solutions of the sixth Painlevé equation PVI, obtained in the framework of the monodromy preserving deformation method, and their explicit parametrization in terms of monodromy data, are tabulated.
description: 30 pages, 1 figure; Nonlinearity 2012
Heptelia Brenske 1898
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Heptelia

description: Heptelia Brenske, 1898a
[2 species].
Type species Heptelia stripidea Brenske, 1898, 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 130, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Status and future evolution of GaAs technologies and applications for the 5Ghz to the 100GHz frequency domain from european point of view
Creators: name: Daembkes, Heinrich
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: Wireless local networks and remote identification systems are emerging in the 5.2GHz to 5.8GHz Telecommunication link networks for inter-cell connections are to a high degree based on radio links in the frequency range between 13GHz and 6OGHz. At 76GHz the first automotive radars are now available and in use. For these applications state of the art GaAs components are developed and provided by European sources. Up to X-band MESFETs are still carrying the load whereas else heterostructure transistors become dominant. This paper reviews the Activities from a European point of view.
Comparison of hyaluronic acid-based micelles and polyethylene glycol-based micelles on reversal of multidrug resistance and enhanced anticancer efficacy in vitro and in vivo
Creators: name: Wang, Jinling
name: Li, Ying
name: Wang, Lifang
name: Wang, Xiaohui
name: Tu, Pengfei
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Polyethylene glycol (PEG)-based block copolymer micelles and hyaluronic acid (HA)-based grafted copolymer micelles have been widely investigated in chemotherapy. In this study, to evaluate the differences among HA-based grafted polymer micelles, PEG-based block polymer micelles and the mixed of these two micelles in enhancing antitumor effects and overcoming MDR, two amphiphilic vitamin E succinate (VES) derivatives, HA VES (HA-g-VES) and PEG 2000 VES (TPGS2k), were applied as nanocarriers to prepare HA-VES micelles (HA-PMs), TPGS2k micelles (TPGS2k-PMs) and the mixed micelles (HA/TPGS2k-PMs) for the co-delivery of doxorubicin (DOX) and curcumin (Cur). With the addition of TPGS2k, the particle size of HA/TPGS2k-PMs (153.37 ± 1.00 nm) was smaller than that of HA-PMs (223.83 ± 1.84) but significantly larger than that of TPGS2k-PMs (about 20 nm). The loading efficiency of HA/TPGS2k-PMs was 7.10%, which was lower than HA-PMs (8.31 ± 0.15%) but higher than TPGS2k-PMs (4.38 ± 0.24%). In vitro, HA/TPGS2k-PMs and TPGS2k-PMs exhibited higher cytotoxicity and reversal MDR effects than HA-PMs in MCF-7/Adr cells. However, HA/TPGS2k-PMs, HA-PMs and TPGS2k-PMs all significantly improved the tumor biodistribution, the antitumor effects and reduced the side effects of DOX in 4T1-tumor-bearing mice, but these three micelles displayed no differences in vivo. Therefore, EPR passive targeting effects caused by PEGylated micelles and CD44 active targeting effects caused by HA-based micelles have no significant variance in the delivery of antitumor drugs by i.v.
Robustness of odd-parity superconductivity with spin-orbit locking against disorder
Creators: name: Michaeli, Karen
name: Fu, Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Unconventional superconductors host a plethora of interesting physical phenomena. However, the standard theory of superconductivity suggests that unconventional pairing is highly sensitive to disorder, and hence can only be observed in ultraclean systems. We find that due to an emergent chiral symmetry, spin-orbital locking can parametrically suppress pair decoherence introduced by impurity scattering in odd-parity superconductors. Our work demonstrates that disorder is not an obstacle to realize odd-parity superconductivity in materials with strong spin-orbit coupling.
description: 5 pages, 2 figures
Flip-Chip Integration of Power HEMTs: A Step Towards a GaN MMIC Technology
Creators: name: Seemann, Kay
name: Ramberger, Suitbert
name: Tessmann, Axel
name: Quay, Rudiger
name: Schneider, Joachim
name: Rießle, Markus
name: Walcher, Herbert
name: Kuri, Michael
name: Kiefer, Rudolf
name: Schlechtweg, Michael
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: In this paper, flip-chip integration is demon-stratedas a method for faster progress towards a GaN MMIC technology by separating the development of active devices and passive matching circuits. This approach offers distinct advantages in the verification of passive components realized on a 2” SiC substrate. A proven 0 .3 µm GaAs PHEMT technology was used for the transistors that allowed to reproducibly verify both, the flip-chip transitions and the behaviour of the coplanar SiC structures. As an example, three X-band amplifiers in flip-chip technology are presented that demonstrate the feasibility of the technology.
Virial expansion coefficients in the harmonic approximation
Creators: name: Armstrong, J. R.
name: Zinner, N. T.
name: Fedorov, D. V.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The virial expansion method is applied within a harmonic approximation to an interacting N-body system of identical fermions. We compute the canonical partition functions for two and three particles to get the two lowest orders in the expansion. The energy spectrum is carefully interpolated to reproduce ground state properties at low temperature and the non-interacting large temperature limit of constant virial coefficients. This resembles the smearing of shell effects in finite systems with increasing temperature. Numerical results are discussed for the second and third virial coefficients as function of dimension, temperature, interaction, and the transition temperature between low and high energy limits.
description: 11 pages, 7 figures, published version
Homogeneous Killing spinor space-times
Creators: name: Bergh, Norbert Van den
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A classification of Petrov type D Killing spinor space-times admitting a homogeneous conformal representant is presented. For each class a canonical line-element is constructed and a physical interpretation of its conformal members is discussed.
description: 12 pages; corrected some misprints; added motivation; discussion of physical interpretation; moved integration of the class IV non-aligned perfect fluids to separate paper
Didactique du français et apports à la formation initiale des enseignants québécois
Creators: name: RICS, Revue
name: Soucy, Emmanuelle
name: Dumais, Christian
Publisher: name: figshare
Year: 2021
Subjects: Education

description: La formation initiale en didactique du français est-elle réellement adaptée à la réalité du terrain? Répond-elle aux besoins des futurs enseignants? Il est légitime de se poser ces questions puisqu’il n’est pas rare que les étudiants et les praticiens jugent la formation initiale peu adéquate pour les préparer au monde du travail (Goyette et Martineau, 2018). En effet, ils mentionnent qu’elle est trop souvent déconnectée de la réalité scolaire et qu’un décalage est présent entre les cours suivis et ce qui se passe réellement sur le terrain (Tremblay-Wragg, 2013). Nous savons pourtant que la formation initiale ne peut préparer en totalité les étudiants à la profession (Tardif, 2018a). Il faut plutôt envisager la professionnalisation sur un continuum (Conseil supérieur de l’éducation, 2014; Tardif, 2018b). La formation initiale ne devrait pas être considérée comme une fin en soi, mais plutôt comme le premier jalon de l’apprentissage de la profession (Conseil supérieur de l’éducation, 2014), profession qui continuera de se développer sur le terrain (Tardif, 2018b).
A Simplified Approach for Quasi-linear Power Amplifier Distortion Evaluation
Creators: name: Santarelli, Alberto
name: Paganelli, Rudi Paolo
name: Costantini, A.
name: Vannini, Giorgio
name: Filicori, Fabio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: The paper presents a simplified approach for the evaluation of mild distortion in highly linear power amplifiers (PA)for microwave communications.In particular,it is shown how intermodulation distortion (IMD) can be accurately predicted on the basis of a single-tone power-swept Harmonic Balance analysis instead of using two-tone or multi-tone analyses leading to time-consuming and computationally expensive iterative PA design procedures.Moreover,simple equations provided in the paper show that common design specifications given in terms of maximum acceptable IMD are conveniently converted into constraints on a suitable non linearity index, involving both AM/AM and AM/PM amplifier characteristics.Experimental validation is provided in the paper on the basis of a 50 ȍ-loaded GaAs 600 ȝm-PHEMT based power amplifier simulated with Agilent ADS.
A 23 GHz Active Mixer with Integrated Diode Linearizer in SiGe BiCMOS Technology
Creators: name: Bao, Mingquan
name: Li, Yinggang
name: Cathelin, Andreia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: Active mixers operating at 23 GHz are designed and fabricated in SiGe technology.An integrated diode linearizer is used to improve the linearity of the mixer.Measurement and simulation show excellent agreement.Typically,10 dB double-sideband noise figure, 10 dBm IIP3 and 2 dB conversion gain are measured, featuring low noise and high linearity in a same design.
Integrated receiver components for low-cost 26 GHz LMDS applications using an 0.8 um Sige HBT technology
Creators: name: Sonmez, E.
name: Trasser, A.
name: Abele, P.
name: Schad, B.
name: Schumacher, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: The authors have demonstrated integrated re-ceiver components addressing 26 GHz Local Multipoint Distribution Services (LMDS) applications using a standard SiGe HBT MMIC process with an layouted emitter width of 0.8 m. Compact circuit layout and transistor structure opti-mization are applied to a mature Si/SiGe technology, resulting in low-cost integrated circuits enabling consumer-oriented systems at 26 GHz. The integrated receiver components are a downconverter and a static 2:1 divider. The downconverter IC consists of a preamplifier and a mixer with an IF buffer. The conversion gain is determined to be 24 dB for an intermediate frequency of 200 MHz, and the maximum frequency of operation for the divider is 28.2 GHz.
Holochelus Reitter 1889
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Holochelus

description: Holochelus Reitter, 1889
[53 species and 1 additional subspecies].
Type species Holochelus subseriatus Reitter, 1889, by monotypy.
Odontochelus Semenov,1905.
Typespecies Holochelus lineolatus Reitter, 1902, by monotypy.
Synonymy by Medvedev (1951).
Miltotrogus (Microtrogus): Mikšić 1965.
Unavailable name.
Holochelus (Miltotrogus) Reitter,1902,as Rhizotrogus (Miltotrogus).
Type species Melolontha aequinoctialis Herbst, 1790, by subsequent designation of Medvedev (1951).
Status revised to Holochelus (Miltotrogus) by Nikolajev (2000).
Amphimallus (Eriotrogus) Reitter, 1902.
Type species Amphimallus (Eriotrogus) erivanicus Reitter, 1902, by monotypy.
Synonymy with Miltotrogus by Bunalski (1994).
Holochelus (Pakistanotrogus) Keith, 2006.
Type species Holochelus (Pakistanotrogus) puchneri Keith, 2006, 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 130, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Anomalous Wtb coupling and forward-backward asymmetry of top quark production at the Tevatron
Creators: name: Kolodziej, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An influence of the anomalous Wtb coupling on forward-backward asymmetry of top quark pair production at the Tevatron is investigated taking into account decays of the top quarks to 6 fermion final states containing one charged lepton. To this end the most general effective Lagrangian of the Wtb interaction containing terms of dimension up to five is implemented into 'carlomat', a general purpose Monte Carlo program, which allows to compute automatically all necessary cross sections in the presence of anomalous vector and tensor form factors. A sample of results which illustrate little effect of the left- and right-handed tensor form factors on the t\bar t invariant mass dependent forward-backward asymmetry and the charge-signed rapidity distribution of the lepton originating from the W boson from top quark decay is shown.
description: Published version
A 5.8 GHz Mixer using SiGe HBT Process
Creators: name: Lee, Sang-Heung
name: Lee, Ja-Yol
name: Lee, Seung-Yun
name: Park, Chan Woo
name: Kim, Sang Hoon
name: Bae, Hyun-Chul
name: Kang, Jin-Yeong
name: Cho, Kyoung Ik
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: DSRC provides high speed radio link between Road Side Equipment and On-Board Equipment within the narrow communication area.In this paper,a 5.8 GHz down-conversion mixer for DSRC communication system is designed and fabricated using 0.8 Pm SiGe HBT process technology and RF/LO matching circuits,RF/LO input balun circuits and IF output balun circuit are all integrated on chip.The measured performance is 7.5 dB conversion gain,-2.5 dBm input IP3,46 dB LO to RF isolation,56 dB LO to IF isolation,current consumption of 21 mA for 3.0 V supply voltage and the chip size of fabricated mixer is 1.9 mm X 1.3 mm.
Didactique du français et apports à la formation initiale des enseignants québécois
Creators: name: RICS, Revue
name: Dumais, Christian
Publisher: name: figshare
Year: 2021
Subjects: Education

description: La formation initiale en didactique du français est-elle réellement adaptée à la réalité du terrain? Répond-elle aux besoins des futurs enseignants? Il est légitime de se poser ces questions puisqu’il n’est pas rare que les étudiants et les praticiens jugent la formation initiale peu adéquate pour les préparer au monde du travail (Goyette et Martineau, 2018). En effet, ils mentionnent qu’elle est trop souvent déconnectée de la réalité scolaire et qu’un décalage est présent entre les cours suivis et ce qui se passe réellement sur le terrain (Tremblay-Wragg, 2013). Nous savons pourtant que la formation initiale ne peut préparer en totalité les étudiants à la profession (Tardif, 2018a). Il faut plutôt envisager la professionnalisation sur un continuum (Conseil supérieur de l’éducation, 2014; Tardif, 2018b). La formation initiale ne devrait pas être considérée comme une fin en soi, mais plutôt comme le premier jalon de l’apprentissage de la profession (Conseil supérieur de l’éducation, 2014), profession qui continuera de se développer sur le terrain (Tardif, 2018b).
Boundary Resonances in S = 1/2 Antiferromagnetic Chains under a Staggered Field
Creators: name: Furuya, Shunsuke C.
name: Oshikawa, Masaki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a boundary field theory approach to electron spin resonance in open $S=1/2$ Heisenberg antiferromagnetic chains with an effective staggered field. In terms of the sine Gordon effective field theory with boundaries,we point out the existence of boundary bound states of elementary excitations, and modification of the selection rules at the boundary. We argue that several "unknown modes" found in electron spin resonance experiments on KCuGaF$_6$ [I. Umegaki et al., Phys. Rev. B 79, 184401 (2009)] and Cu-PM [S. A. Zvyagin et al., Phys. Rev. Lett. 93, 027201 (2004)] can be understood as boundary resonances introduced by these effects.
A SiGe HEMT Mixer IC with Low Conversion Loss
Creators: name: Kallfass, I.
name: Gruson, F.
name: Abele, P.
name: Michelakis, K.
name: Hackbarth, T.
name: Hieber, K.-H.
name: Müller, J.
name: Schumacher, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: The authors present the first SiGe HEMT mixer integrated circuit. The active mixer stage, operating up to 10GHz RF, has been designed and realized using a 0.1µ µµ µm gate length transistor technology. The design is based on a new large-signal simulation model developed for the SiGe HEMT. Good agreement between simulation and measurement is reached. The mixer exhibits 4.0dB and 4.7dB conversion loss when down-converting 3.0GHz and 6.0GHz signals, respectively, to an intermediate frequency of 500MHz using high-side injection of 5dBm local oscillator power. Conversion loss is less than 8dB for RF frequencies up to 10GHz with a mixer linearity of –8.8dBm input related 1dB compression point.
Incentive effects in ecological fiscal transfers - evidence based foundations for policy advice
Creators: name: Droste, Nils
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2018
Subjects: subject: 330

description: Diese Dissertation untersucht die Anreizwirkungen ökologischer Finanzausgleichsysteme auf die Ausweisung von Schutzgebieten. Mittels eines mikroökonomischen Modells werden die Potenziale eines ökologischen Finanzausgleiches für solch eine fiskalische Anreizsetzung im Naturschutz aufgezeigt und daraus überprüfbare Hypothesen generiert. Entsprechende empirische Nachweise einer Anreizwirkung in den existierenden ökologischen Finanzausgleichsystemen in Brasilen und Portugal werden durch Pandeldatenregressionen und Zeitreihenanalysen erbracht. Darüber hinaus werden drei konkrete Vorschläge für mögliche Anpassungen des Instrumentes auf föderaler, supranationaler und globaler Ebene durch quantitative Simulationen und unter Betrachtung der spezifischen institutionellen Rahmenbedingungen entwickelt. Damit erbringt die Dissertation eine evidenzbasierte Grundlage für Politikempfehlungen hinsichtlich der Gestaltung ökologischer Finanzausgleichsysteme.
description: This dissertation analyses incentive effects in ecological fiscal transfers for the designation of protected areas. The potential of ecological fiscal transfers to set such fiscal incentives for nature conservation is displayed through a microeconomic model that generates testable hypothesis. Corresponding empirical evidence of an incentive effect is provided by panel data regressions and time series analyses of existing ecological fiscal transfer systems in Brazil and Portugal. Moreover, three tangible proposals for potential adaptations of the instrument to federal, supra-national, and global levels are developed through quantitative simulations that take the specifics of the institutional frameworks into account. Thereby, this dissertation provides an evidence based foundation for policy advice for the design of ecological fiscal transfer systems.
The use of repeat colour digital photography to monitor high Arctic tundra vegetation
Creators: name: Beamish, Alison Leslie
Publisher: name: University of British Columbia
Year: 2013

description: High Arctic ecosystems are experiencing some of the earliest and most extreme changes in climate as a result of global climate change. Temperature increases twice the hemispheric average are initiating changes to terrestrial systems including shifts in timing of phenology, aboveground biomass and community composition of Arctic vegetation. Satellite imagery from the last 30 years has shown a greening across tundra ecosystems with increases in peak productivity and growing season length. A few plot scale field studies support these large-scale trends but overall validation at the plot scale is still lacking. Current manual and automated methods for monitoring vegetation at the community and plot scale is both time consuming and employs expensive, sensitive multispectral instrumentation that can be cumbersome to use in Arctic field sites. In this thesis I examine the utility of colour digital photography in monitoring tundra vegetation across four different vegetation communities, inside and outside of passive warming chambers. Colour and infrared photos were taken on one day peak season in 2010. Relationships between a greenness index derived from colour photographs and biomass data were compared to relationships with NDVI derived from infrared photographs. Results suggest that colour photographs can be used as a proxy for productivity and aboveground biomass in multiple tundra vegetation communities. These data were then used to infer phenological signals at multiple spatial scales from a set of colour photographs taken on six days during the 2012 growing season. Results show higher greenness values due to treatment at the plot scale but not at the individual scale suggesting greater green biomass in warmed plots. At the individual scale site differences emerged for two study species (Salix arctica, Dryas integrifolia) suggesting a difference in vegetation vigor due to differences in soil moisture and perhaps competition. The phenological signal was strongest at the species scale due to reduced interference from bare soil, litter and standing water. Overall, these results show the potential for this methodology for measuring vegetation in the Arctic. Its simplicity, affordability and efficiency has great potential for use in a vegetation monitoring network in the Arctic.
Spaceborne Synthetic Aperture Radar (SAR)Systems: State of the Art and Future Developments
Creators: name: Moreira, Alberto
name: Krieger, Gerhard
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: This paper first summarizes the state of the art in spaceborne SAR systems and applications.The second part of this paper gives an overview of new concepts,techniques and technologies for future SAR systems,allowing an increase of flexibility in the SAR operation mode as well as a reduction in the overall system costs.Several innovative concepts and technologies as bi- and multi-static configurations,parasitic SAR,sparse aperture systems and digital beamforming will play an important role for future spaceborne SAR constellations.
Holomelia Brenske 1891
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Holomelia

description: Holomelia Brenske, 1891
[5 species].
Type species Holomelia mirabilis Brenske, 1891, 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 130, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Entwicklung eines Organkulturmodells des embryonalen Gaumens der Maus
Creators: name: Schubert, Andreas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2009
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: 617.5
subject: 611

description: Der Verschluss des sekundären Gaumens der Maus ist unter in vitro Bedingungen an 2 unterschiedlichen Mäusestämmen untersucht worden. Die Köpfe wurden unter Mitnahme der Mandibel und der Zunge nach 14 Tagen 6 Stunden p.c. abpräpariert. Nach der Präparation und nach 72 Stunden Inkubation wurde die Gaumenentwicklung ausgewertet. Dies wurde mittels einer 6- stufigen Scoreeinteilung vorgenommen. 53 % der Präparate des NMRI-Stammes erreichten einen Verschluss von mindestens 2/3 der Gaumenplattenfläche bei einem durchschnittlichen Ausgangsscorewert von 4 (erster Plattenkontakt) und nur 13 % des A/WySnJStammes bei einem mittleren Anfangswert von Score 2 (deutliches Auseinanderweichen der Platten). Sowohl zum Präparationszeitpunkt wie auch nach der Bebrütung war die Entwicklung des NMRI Stammes deutlich vor der des A/WySnJ Stammes. Nach der Inkubation konnte beim NMRI Stamm eine signifikante Entwicklung des sekundären Gaumens beobachtet werden, während der A/WySnJ Stamm kein signifikantes Wachstum aufwies.
Equivalent continuous and discrete realizations of Levy flights: Model of one-dimensional motion of inertial particle
Creators: name: Lubashevsky, Ihor
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The paper is devoted to the relationship between the continuous Markovian description of Levy flights developed previously and their equivalent representation in terms of discrete steps of a wandering particle, a certain generalization of continuous time random walks. Our consideration is confined to the one-dimensional model for continuous random motion of a particle with inertia. Its dynamics governed by stochastic self-acceleration is described as motion on the phase plane {x,v} comprising the position x and velocity v=dx/dt of the given particle. A notion of random walks inside a certain neighbourhood L of the line v=0 (the x-axis) and outside it is developed. It enables us to represent a continuous trajectory of particle motion on the plane {x,v} as a collection of the corresponding discrete steps. Each of these steps matches one complete fragment of the velocity fluctuations originating and terminating at the "boundary" of L. As demonstrated, the characteristic length of particle spatial displacement is mainly determined by velocity fluctuations with large amplitude, which endows the derived random walks along the x-axis with the characteristic properties of Levy flights. Using the developed classification of random trajectories a certain parameter-free core stochastic process is constructed. Its peculiarity is that all the characteristics of Levy flights similar to the exponent of the Levy scaling law are no more than the parameters of the corresponding transformation from the particle velocity v to the related variable of the core process. In this way the previously found validity of the continuous Markovian model for all the regimes of Levy flights is explained.
Hämodynamische Klassifizierung der PAVK durch duplexsonographische Messungen im poststenotischen Bereich
Creators: name: Podhaisky, Thomas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2005
Subjects: subject: Elektronische Publikation
subject: Zsfassung in engl. Sprache
subject: 616.1

description: Bei Patienten mit peripherer arterieller Verschlusskrankheit ist der hämodynamische Schweregrad ein wichtiges Kriterium für die Indikationsstellung zur interventionellen und gefäßchirurgischen Therapie. In der klinischen Praxis wird die Beurteilung routinemäßig durch Doppler-Druckmessungen vorgenommen. Jedoch ist diese Methode bei diabetischen Patienten mit Mediasklerose nicht anwendbar. Das Ziel unserer Studie war es deshalb, den diagnostischen Stellenwert peripherer duplexsonographischer Parameter zu evaluieren, die durch Untersuchung im Bereich der A. tibialis posterior gewonnen wurden. Die Auswertung ergab, dass unter den geprüften Parametern die systolische Akzelerationszeit die beste Trennfähigkeit aufwies. Bei Patienten mit kritischer Extremitätenischämie wurde ein deutlich reduzierter Resistenz-Index beobachtet. Ruheblutflussmessungen lieferten keine klinisch relevante Information, was auf die große Variabilität dieses Parameters zurückzuführen ist. Zusammenfassend empfehlen wir, vor invasiven Maßnahmen Spektral-Doppler-Parameter der A. tibialis posterior in die hämodynamische Funktionsbeurteilung der peripheren arteriellen Verschlusskrankheit, die mit einer Mediasklerose kombiniert ist, einzubeziehen.
description: In patients with peripheral arterial disease the degree of hemodynamic impairment is considered as an important criterion in determining indication for the interventional and vascular surgical therapy. In the clinical practice assessment is usually performed by Doppler pressure measurements. However, in diabetic patients with mediasclerosis this method is not applicable. The aim of the present study, therefore, was to evaluate the diagnostic significance of the peripheral duplexsonographic parameters obtained by the investigation in the area of the A. tibialis posterior. Among the parameters considered analysis yielded the strongest discriminating power of the systolic acceleration time. In patients with critical limb ischemia a clear reduced resistance index was observed. Resting blood flow measurements did not provide clinical relevant information, which may be attributed to the high variance of this parameter. In conclusion we recommend to include spectral Doppler parameters of the A. tibialis posterior in the functional hemodynamic investigation of peripheral arterial disease which is combined with a mediasclerosis before invasive procedures.
Development and formulation of carbomer 934P-containing mucoadhesive pellets by fluid-bed techniques
Creators: name: Jeon, Im-Jak
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2007
Subjects: subject: Elektronische Publikation
subject: Hochschulschrift
subject: Online-Publikation
subject: Zsfassung in dt. Sprache
subject: 615.19

description: Die Klebrigkeit von Carbomer konnte mit Elektrolyten bzw. mit pharmazeutisch-technologisch eingesetzten Hilfsstoffen unterdrückt werden. Dadurch war es möglich, Carbomer-haltige mucoadhäsive Pellets durch Rotorgranulierung herzustellen. Durch Dry-coating Verfahren war es möglich, Carbomer-haltigen Pellets herzustellen. Mittels Faktorenversuchsplan wurden die Einflüsse der Prozessparameter untersucht. Die Ergebnisse zeigten, dass Rotorgeschwindigkeit, Sprührate, Nachmischzeit, und Pulverführungsrate große Bedeutung für die Produkteigenschaften haben. Mit Hilfe der faktoriellen Versuchsplanung wurden die Prozessparameter untersucht, so dass die Herstellung von Carbomer-haltigen Pellets durch Fluid-bed-Technologie und Dry-Coating-Technik optimiert werden kann. Die Eigenschaften der hergestellten Pellets wurden unter anderem mittels Bildanalyse, Härtetest und Auflösungstest charakterisiert.
description: Carbomer 934P-containing mucoadhesive pellets were successfully prepared by the fluid-bed granulation and dry-coating technique with the help of anti-tack action of electrolytes and excipients. The anti-tack actions of these additives were elucidated that: electrolytes reduced the viscosity of carbomer gel through the 'salting-out effect'. The excipients, such as tri-calcium phosphate, suppressed the tack by the physical action caused by its high water uptake ability. The influences of critical process variables were investigated by factorial design affecting the properties of produced pellets. It was shown that the parameters are the key variables determining the properties of produced pellets. The rotor rotation speed affected significantly positively the yield of 500-1180+m fraction, the sphericity, the mean diameter, and the hardness of pellets. When the spray rate of binder was increased, the mean diameter of pellets and % oversized were considerably increased. The spheronization time showed a significant positive effect on the sphericity. From these results, it could be indicated that it is very important to clarify and optimize the process variables for a successful granulation.
Microwave Circuits Based on Negative Refractive Index Material Structures
Creators: name: Caloz, Christophe
name: Sanada, Atsushi
name: Itoh, Tatsuo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2003
Subjects: ING-INF/01 Elettronica

description: The paper presents the fundamentals of composite right/left-handed (CRLH)transmission lines and materials,and proposes an accurate circuit model of these structures for the design of practical applications.Three novel applications of CRLH meta-structures,developed at UCLA,are demonstrated:an arbitrary coupling-level backward-wave coupler,a zero th order resonator and a distributed planar negative lens.
Glass elasticity from particle trajectories
Creators: name: Klix, Christian L.
name: Ebert, Florian
name: Weysser, Fabian
name: Fuchs, Matthias
name: Maret, Georg
name: Keim, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using positional data from video-microscopy of a two-dimensional colloidal system and from simulations of hard discs we determine the wave-vector-dependent normal mode spring constants in the supercooled fluid and glassy state, respectively. The emergence of rigidity and the existence of a displacement field in amorphous solids is clarified. Continuum elastic theory is used in the limit of long wavelengths to analyze the bulk and shear modulus of this amorphous system as a function of temperature. The onset of a finite static shear modulus upon cooling marks the fluid/solid transition. This provides an opportunity to determine the glass transition temperature $T_g$ in an intuitive and precise way.
description: 7 pages, 5 figures