cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2. The Virtuous Physician. A New Translation of a Pseudo-Hippocratic Text and Its Implications for the History of Moral Inquiry; or, The Significance of an Insignificant Text
Creators: name: Martin, Elliott Burton
Publisher: name: GISI - UniTO
Year: 2012

description: This article presents a new translation of the previously little-studied pseudo-Hippocratic text, Precepts, with commentary, and a broader discussion of the work in its context at a crossroads in the history of moral inquiry. A distillation of the schools of medical thought between the age of Hippocrates and the age of Galen, Precepts is not an oath, but a set of pragmatic, comprehensive guidelines for the comportment and practice of what the unknown author describes ideally as the ‘virtuous physician’. I propose a new way of interpreting the development of Greek ethical notions, as exemplified in our sample text, as the inevitable philosophic product of the religious influence of the Ancient Near East. Rather than suggest a conflict between the polytheists and the challenge of monotheism, I describe an interplay between the two belief systems. I propose that the Greek attempts at reconciliation between these systems were the critical impetus for the development of moral inquiry alongside the birth of ‘rationalism’. In other words, it will be seen that it was through the avenue of the Greek enlightenment that the ancient physician transformed from physician-priest to physician-philosopher.
description: Journal of Interdisciplinary History of Ideas, Vol 1, No 2 (2012)
Nanoporous membranes and heterostructures on III-V compounds for micro- and optoelectronic applications
Creators: name: Tiginyanu, I.M.
name: Hartnagel, H.L.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: High-quality nanoporous membranes and heterostructures of III-V compounds have been fabricated by using MeV-ion-implantation-assisted or photon-assisted electrochemical etching. They were found to exhibit short-wavelength luminescence, Fröhlich-type surface-related vibrations and enhanced nonlinear optical response. The obtained results are discussed in connection with various possible applications of nanoporous structures.
A new reliable fabrication-process for InP based HEMTs and MMICs with gate length from 0.06 to 0.2 um
Creators: name: Nawaz, M.
name: Persson, S. H. M.
name: Zirath, H.
name: Choumas, E.
name: Mellberg, A.
name: Kollberg, E. L.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: We present a complete fabrication process and measured results for InP based HEMTs and MMICs. A major effort has been focused on the development of new and reliable gate and via-hole process both for InP based HEMTs and MMICs. A single exposure is required to define both the footprint and the head of the T-gate by modulation of the exposure doses. The developed gate and via-hole process is reliable and suitable for volume production of InP-HEMTs and MMICs with high yield. A complete MMIC chip includes mesa resistors, microstrip transmission lines, HEMT transistors, and ground via holes. A cutoff frequency fT of 100 GHz and maximum oscillation frequency fmax of 200 GHz was obtained from 0.1 um gate lattice matched AlInAs/GaInAs/InP based HEMTs.
High purity AlGaAs grown by molecular beam epitaxy
Creators: name: Zhuravlev, K.S.
name: Toropov, A.I.
name: Shamirzaev, T.S.
name: Bakarov, A.K.
name: Rakov, Yu.N.
name: Myakishev, Yu. B.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: We report the growth and photoluminescence study of very high quality AlxGal-xAs layers grown by molecular beam epitaxy over the 0
On second order elliptic equations with a small parameter
Creators: name: Freidlin, Mark
name: Hu, Wenqing
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J57, 35J70, 60J60

description: The Neumann problem with a small parameter $$(\dfrac{1}εL_0+L_1)u^ε(x)=f(x) \text{for} x\in G, .\dfrac{\partial u^ε}{\partial γ^ε}(x)|_{\partial G}=0$$ is considered in this paper. The operators $L_0$ and $L_1$ are self-adjoint second order operators. We assume that $L_0$ has a non-negative characteristic form and $L_1$ is strictly elliptic. The reflection is with respect to inward co-normal unit vector $γ^ε(x)$. The behavior of $\lim\limits_{ε\downarrow 0}u^ε(x)$ is effectively described via the solution of an ordinary differential equation on a tree. We calculate the differential operators inside the edges of this tree and the gluing condition at the root. Our approach is based on an analysis of the corresponding diffusion processes.
description: 28 pages, 1 figure, revised version
Estimating Omissions from Searches
Creators: name: Webster, Anthony J
name: Kemp, Richard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The mark-recapture method was devised by Petersen in 1896 to estimate the number of fish migrating into the Limfjord, and independently by Lincoln in 1930 to estimate waterfowl abundance. The technique applies to any search for a finite number of items by two or more people or agents, allowing the number of searched-for items to be estimated. This ubiquitous problem appears in fields from ecology and epidemiology, through to mathematics, social sciences, and computing. Here we exactly calculate the moments of the hypergeometric distribution associated with this long-standing problem, confirming that widely used estimates conjectured in 1951 are often too small. Our Bayesian approach highlights how different search strategies will modify the estimates. As an example, we assess the accuracy of a systematic literature review, an application we recommend.
description: One figure. Supplementary Material included as an Appendix
Towards the Standard Model of Fermi Arcs from a Wilsonian Reduction of the Hubbard Model
Creators: name: Hong, Seungmin
name: Phillips, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two remarkable features emerge from the exact Wilsonian procedure for integrating out the high-energy scale in the Hubbard model. At low energies, the number of excitations that couple minimally to the electromagnetic gauge is less than the conserved charge, thereby implying a breakdown of Fermi liquid theory. In addition, two charge $e$ excitations emerge in the lower band, the standard projected electron and a composite entity (comprised of a hole and a charge $2e$ bosonic field) which give rise to poles and zeros of the single-particle Green function, respectively. The poles generate spectral weight along an arc centered at $(π/2,π/2)$ while the zeros kill the spectral intensity on the back-side of the arc. The result is the Fermi arc structure intrinsic to cuprate phenomenology. The presence of composite excitations also produces a broad incoherent pseudogap feature at the $(π,0)$ region of the Brillouin zone, thereby providing a mechanism for the nodal/anti-nodal dichotomy seen in the cuprates.
description: 8 pages, 4 figures: Extended version accepted to PRB. Additions include: 1) proof that the (\pi,\pi) solution is a global minimum, 2) extensive discussion of relation to SU(2) gauge theory of t-J model and 3) the meaning of the zero modes given the absence of Luttinger's theorem established in arXiv:1207.4201. New Published version
Modeling of LT-GaAs and LT-Al0.3Ga0.7As MISFET devices
Creators: name: Rao, Rapeta V.V.V.J.
name: Chong, T.C.
name: Tan, L.S.
name: Lau, W.S.
name: Liou, JJ.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: A theoretical model is developed for LT-GaAs and LT-Al0.3Ga0.7As MISFETs and is compared with experimental data. This model is based upon the analytical solution of Poisson's equation, the current continuity equation and the Chang-Fetterman velocity-field equation. When the device is operating in the linear region and knee region the one-dimensional Poisson equation has been considered. When the device is in the saturation regime, the two-dimensional Poisson equation has been solved analytically. The resulting output current-voltage characteristics are in excellent agreement with experimental data.
Modeling the GaAs nonlinear microwave circuits using the CIA program
Creators: name: Dobes, Josef
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: An original software tool called CIA (Circuit Interactive Analyzer) for general analysis and optimization of electronic circuits is briefly introduced. A built-in somewhat more accurate model of CIA GaAs FET is presented. An analysis of the microwave 3.8 GHz distributed oscillator by means of that model is performed in comparison with a SPICE3 analysis.
Electron device model based on nonlinear discrete convolution for large-signal circuit analysis using commercial CAD packages
Creators: name: Filicori, Fabio
name: Santarelli, Alberto
name: Traverso, Pierandrea
name: Vannini, Giorgio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: An empirical, purely mathematical electron device model is derived, without introducing any constraint on the physical de­vice structure, under simple assumptions widely verified in practical microwave circuit design. In particular, the model is based on a new approach which greatly simplifies the imple-mentation in commercially available CAD pro-grammes for microwave circuit analysis, with re-spect to previous similar approaches. Ex-perimental results are presented which confirm the validity of the model.
A new 2-D GaAs MESFETs model based on a very accurate velocity - field expression
Creators: name: Bobbo, B. M.
name: Giorgio, A.
name: Passaro, V. M. N.
name: Perri, A. G.
name: Pesare, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: A new physical model for GaAs MESFET drain current and gate capacitance based on the Chang-Fetterman velocity-electric field model, is presented. Accurate analytical expressions for the 2-D channel potential in the saturation region are adequately employed and mathematically manipulated in order to develop a 2-D C-V physical MESFET model without the main approximations used up to now in the previous physical models.
Harmonic solution of semiconductor transport equations for microwave and millimetre-wave device modelling
Creators: name: Acciari, G.
name: Giannini, F.
name: Leuzzi, G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: The transport equations for charges in a semiconductor have been solved for a periodic voltage excitation by means of a harmonic approach, for modelling of microwave and millimetre-wave active devices. The solution is based on the expansion of the unknown physical quantities in Fourier series in the time domain, and on the discretisation in the space domain. A Waveform-Balance technique in the time domain is used to solve the resulting non-linear equations system. In this way the time step is determined only by Nyquist's sampling requirements at the operating frequency, irrespective of the relaxation times of the semiconductor. This approach allows for a longer time step, and therefore a shorter computing time, than a space- and time-discretised standard solution for many cases of interest, opening the way to effective device simulation.
High temperature performance of gan-based HFET's
Creators: name: Kohn, E.
name: Daumiller, I.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: The technological building blocks for high temperature HFET devices are described. The RF characteristics are investigated by on-wafer testing up to 200°C and the DC characteristics are evaluated up to 850°C in vacuum. Permanent degradation is observed above 650°C. It is concluded, that the chemical stability of the heterostructure material itself may be mainly responsible for this limit.
A sequential growth dynamics for a directed acyclic dyadic graph
Creators: name: Krugly, Alexey L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A model of discrete spacetime on a microscopic level is considered. It is a directed acyclic dyadic graph. This is the particular case of a causal set. The goal of this model is to describe particles as some repetitive symmetrical self-organized structures of the graph without any reference to continuous spacetime. The dynamics of the model is considered. This dynamics is stochastic sequential additions of new vertexes. Growth of the graph is a Markovian process. This dynamics is a consequence of a causality principle.
description: 21 pages, 5 figures. arXiv admin note: text overlap with arXiv:1106.6269
The maximal degree of the Khovanov homology of a cable link
Creators: name: Tagami, Keiji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: In this paper, we study the Khovanov homology of cable links. We first estimate the maximal homological degree term of the Khovanov homology of the ($2k+1$, $(2k+1)n$)-torus link and give a lower bound of its homological thickness. Specifically, we show that the homological thickness of the ($2k+1$, $(2k+1)n$)-torus link is greater than or equal to $k^{2}n+2$. Next, we study the maximal homological degree of the Khovanov homology of the ($p$, $pn$)-cabling of any knot with sufficiently large $n$. Furthermore, we compute the maximal homological degree term of the Khovanov homology of such a link with even $p$. As an application we compute the Khovanov homology and the Rasmussen invariant of a twisted Whitehead double of any knot with sufficiently many twists.
description: 40 pages, 26 figures, I shorten some proofs
Computation of the $p^6$ order low-energy constants with tensor sources
Creators: name: Jiang, Shao-Zhou
name: Wang, Qing
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of calculations of the $p^4$ and $p^6$ order low-energy constants for the chiral Lagrangian with tensor sources for both two and three flavors of pseudoscalar mesons. This is a generalization of our previous work on similar calculations without tensor sources in terms of the quark self-energy $Σ(p^2)$, based on the first principle derivation of the low-energy effective Lagrangian and computation of the low-energy constants with some rough approximations. With the help of partial integration and some epsilon relations, we find that some $p^6$ order operators with tensor sources appearing in the literature are related to each other. That leaves 98 independent terms for $n$-flavor, 92 terms for three-flavor, and 65 terms for two-flavor cases. We also find that the odd-intrinsic-parity chiral Lagrangian with tensor sources cannot independently exist in any order of low-energy expansion.
description: 29 pages
Einfluss des selektiven Androgenrezeptor-Modulators (SARM) BMS-564929 auf die adipogene Differenzierung humaner SGBS-Präadipozyten
Creators: name: Trau, Stefanie
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Altershypogonadismus bezeichnet eine Erkrankung des älteren Mannes mit Symptomen des Testosteronmangels. Adipositas ist eines der prognoserelevantesten Symptome dieser Erkrankung. Die Substitution von Testosteron stellt die Therapie der Wahl da, ist aber auch mit Nebenwirkungen verbunden. Der selektive Androgen-Rezeptor-Modulator BMS-564929, oral verfügbar und mit starker Affinität zum Androgenrezeptor, hat keinen Einfluss auf die Viabilität von humanen SGBS-Zellen und hemmt signifikant die adipogene Differenzierung. Darüber hinaus wurde eine Veränderung in der Expression von AR beobachtet. Es zeigte sich eine Hemmung der mRNA-Expression von Leptin und TNF-α im Verlauf der Adipogenese unter Zugabe von BMS-564929. Dieser SARM scheint eine ähnlich vorteilhafte Wirkung wie Dihydrotestosteron zu haben.
description: Age-related hypogonadism is a disease of older men with symptoms of testosterone deficiency. Obesity is one of the most prognostic symptoms of this disease. Testosterone replacement is the therapy, but is also associated with adverse effects. The selective androgen receptor modulator BMS-564929, orally available and with strong affinity for the androgen receptor, does not affect the viability of human SGBS cells and significantly inhibits adipogenic differentiation. Furthermore, a change in expression of AR was observed. BMS-564929 downregulates the expression of leptin and TNF-α mRNAs during adipogenesis. This SARM seems to have a similar beneficial effect as dihydrotestosterone.
The Alas Language (Northern Sumatra)
Creators: name: Soravia, G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2002
Subjects: L-OR/21 Lingue e letterature della Cina e dell'Asia sud-orientale
L-LIN/01 Glottologia e linguistica

description: Descrizione della lingua Alas parlata nel Nord di Sumatra con breve vocabolario raccolto sul campo.
Direct detection of Higgs-portal dark matter at the LHC
Creators: name: Djouadi, Abdelhak
name: Falkowski, Adam
name: Mambrini, Yann
name: Quevillon, Jeremie
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider the process in which a Higgs particle is produced in association with jets and show that monojet searches at the LHC already provide interesting constraints on the invisible decays of a 125 GeV Higgs boson. Using the existing monojet searches performed by CMS and ATLAS, we show the 95% confidence level limit on the invisible Higgs decay rate is of the order of the total Higgs production rate in the Standard Model. This limit could be significantly improved when more data at higher center of mass energies are collected, provided systematic errors on the Standard Model contribution to the monojet background can be reduced. We also compare these direct constraints on the invisible rate with indirect ones based on measuring the Higgs rates in visible channels. In the context of Higgs portal models of dark matter, we then discuss how the LHC limits on the invisible Higgs branching fraction impose strong constraints on the dark matter scattering cross section on nucleons probed in direct detection experiments.
description: 6 pages, 3 figures; v2: references added; v3: monojet and Higgs data updated, version published in EPJC
Untersuchungen zum Einfluss von Glykierung und Glykosylierung auf Meningeomzellen
Creators: name: Selke, Philipp
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Wie die meisten Tumore, erzeugen auch Meningeome (häufigster intrakranialer Tumor) bevorzugt durch anaerobe Glykolyse Energie (Warburg Effekt) und synthetisieren so vermehrt den Metaboliten Methylglyoxal (MGO). MGO ist dafür bekannt mit Aminogruppen zu reagieren und dabei Advanced Glycation Endproducts (AGEs) zu bilden. Diese Reaktion wird auch als Glykierung bezeichnet. AGEs sind dafür bekannt im Alter vermehrt zu akkumulieren. Zur Untersuchung der Effekte von Glykierung wurden zum einen die benigne Zelllinie BEN-MEN-1 und zum anderen die maligne Zelllinie IOMM-Lee genutzt. Während dieser Arbeit konnte gezeigt werden, dass die Glykierung zu einem erhöhten invasiven Verhalten der benignen Meningeome führt, wohingegen in malignen Meningeomen gegenteilige Effekte beobachtet werden konnten. Die Glykierung führte zu einer Veränderung der Expression von Sialyltransferasen, welche vor allem für einen direkten oder indirekten Einfluss auf die Tumorentwicklung bekannt sind.
description: Meningioma (most common intracranial tumor) generate, like the most tumours, energy by using the anaerobe glycolysis (Warburg effect) and which consequently results in a higher amount of the metabolite methylglyoxal (MGO). This dicarbonyl is known to react with amino groups, thereby building advanced glycation end products (AGEs). This reaction is called glycation. In elder people, it is known that AGEs are increasingly accumulate. To investigate the effects of glycation in meningioma cells there were used the benign cell line BEN- MEN-1 and the malign cell line IOMM-Lee. While this study was shown, that glycation leads to increased invasive behaviour in benign meningioma, whereas in malign meningioma cells were observed opposite effects. Additionally, glycation leads to changes in expression of sialyltransferases, which were known for direct or indirect influences in tumour development.
H3K9 demethylation is required for reproduction in Arabidopsis
Creators: name: Cheng, Jinping
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 576

description: Meiose ist ein entscheidender Prozess für die Reproduktion in Eukaryoten. Die Arabidopsis-Meiose ist tolerant gegenüber dem Verlust von H3K9me2. Es ist jedoch unklar, ob die Entfernung von H3K9me2 für die Meiose erforderlich ist. In dieser Studie fand ich heraus, dass die Histon-Demethylasen IBM1 und JMJ27 erforderlich sind, um H3K9me2 aus meiotischen Genen, einschließlich ZIP4 und SHOC1, zu entfernen. PDS5-Proteine, die Kohäsin-Cofaktoren, wirken stromabwärts IBM1 und JMJ27, um die meiotische Genexpression zu aktivieren. Außerdem fand ich heraus, dass IBM1 und JMJ27 für die Pollenwandbildung erforderlich sind.
description: Meiosis is a crucial process for reproduction in eukaryotes. Arabidopsis meiosis is tolerant to loss of H3K9me2. However, it is unclear whether removing H3K9me2 is required for meiosis. In this study, I found that histone demethylases IBM1 and JMJ27 are required to remove H3K9me2 from meiotic genes, including ZIP4 and SHOC1. PDS5 proteins, the cohesin cofactors, act downstream of IBM1 and JMJ27 to activate meiotic gene expression. Besides, I also found that IBM1 and JMJ27 are required for pollen wall formation.
Convergence to equilibrium in Wasserstein distance for Fokker-Planck equations
Creators: name: Bolley, François
name: Gentil, Ivan
name: Guillin, Arnaud
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We describe conditions on non-gradient drift diffusion Fokker-Planck equations for its solutions to converge to equilibrium with a uniform exponential rate in Wasserstein distance. This asymptotic behaviour is related to a functional inequality, which links the distance with its dissipation and ensures a spectral gap in Wasserstein distance. We give practical criteria for this inequality and compare it to classical ones. The key point is to quantify the contribution of the diffusion term to the rate of convergence, which to our knowledge is a novelty.
Corrosion behavior of metallic bio-implant alloys
Creators: name: Karimi, Shima
Publisher: name: University of British Columbia
Year: 2014

description: The most common metallic biomaterials are 316L, Co-28Cr-6Mo, and Ti-6Al-4V alloys used as prostheses and fixation devices. These materials are biocompatible and have high corrosion resistance. However, metallic biomaterials are not completely inert in the body. The presence of dissolved oxygen, chloride, phosphate, and organic molecules in the body fluids could influence their corrosion behavior. Protein is one of the components of the human body fluids. Body fluids contain different concentrations of protein and even the protein concentration varies at the implant/tissue interface during the healing period. Some proteins are negatively-charged at a neutral body pH and they react with the positively-charged ions released from metallic samples. The reactions either form an absorbed film on the surface of the samples or produce metal/protein/hydroxylated compounds. The primary objective of my project is to investigate influences of protein on corrosion behavior of three commonly used biomaterials. The hypothesis is that the variation of protein concentration can alter corrosion resistance and ion release of biomaterials. This Study could help to develop implants with a better corrosion performance and minimal ion release. This development could promote the physical and mental health of patients and reduce cost and time of revision surgeries. To pursue this study, bovine serum albumin (BSA) and human serum albumin (HSA) were added to phosphate-buffered saline (PBS) solutions. A combination of electrochemical and non-electrochemical corrosion methods was used to understand the kinetics of electrochemical reactions, identify the oxide layer growth mechanism and protein adsorption, and detect ion release and surface morphology with and without input of external energy. The dissolution rates of iron from 316L and cobalt from Co-28Cr-6Mo alloys in the BSA solution were lower than that in the HSA solutions. The surface chemistry of the specimens showed that the adsorption of Na into the Ti-6Al-4V oxide layer depends on the type of protein. In the presence of HSA, sodium (2-methyl-propenoate) was detected whereas Na bound to the sulfhydryl group of bovine serum albumin (BSA) and formed sodium mercaptoacetate. Finally, BSA was a stronger cathodic inhibitor than HSA for 316L and Co-28Cr-6Mo alloys.
Subpopulation-specific regulation of migration and integration in the postnatal olfactory bulb
Creators: name: Haubold, Clara
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Neuronale Stammzellen in der Zona subventricularis produzieren zwei Haupttypen von Progenitorzellen: Granule-Zellen und Periglomeruläre Zellen. Beide migrieren bis zum Bulbus olfactorius. Um den Einfluss von Aktivität auf Migration und Positionierung auf die jeweiligen Subtypen besser zu verstehen, nutzten wir gezielte postnatale Elektroporation. Hierbei konnten wir keine Unterschiede im Bewegungsmuster feststellen. Allerdings entdeckten wir einen Anstieg der Kalziumaktivität von Granule-Zellen kurz vor Erreichen ihrer finalen Position. Als wir Zellaktivität künstlich senkten, sahen wir, dass sich das Migrationsmuster kaum veränderte. Stattdessen existiert ein Einfluss auf Überleben und Positionierung von Granule Zellen. Bei Periglomerulären Zellen blieb dieser Effekt aus. Damit bewiesen unsere Experimente einen subtypen-spezifischen Effekt von neuronaler Aktivität.
description: Neural stem cells regionalised in the subventricular zone produce two main subtypes of neural progenitors, granule cells and periglomerular neurons. Both migrate to olfactory bulb layers. To understand the impact of activity on migration and final positioning, we used targeted postnatal electroporation to compare the two populations. We do not observe any differences regarding the mode of migration. However, we find a very striking increase of intrinsic calcium activity in granule cell precursors when they enter their target layer. By decreasing excitability in granule cell precursors, we find that neuronal activity has little effect on migration but is required for positioning and survival in the OB. Strikingly, decreasing activity of periglomerular precursors had no impact. Altogether these findings suggest that neuronal excitability is subtype specific.
Lessicologia e lessicografia nella storia degli insegnamenti linguistici: atti della seconda giornata del CIRSIL, Bologna 14-15 novembre, 2003
Creators: name: Minerva, N.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2006
Subjects: L-LIN/02 Didattica delle lingue moderne

description: Il secondo quaderno del CIRSIL raccoglie gli atti delle giornate di studio su "Lessicologia e lessicografia nella storia degli insegnamenti linguistici", svoltesi a Bologna il 14 e 15 novembre 2003. Dopo il primo incontro, dedicato a un bilancio teso a individuare le prospettive di ricerca nelle diverse aree linguistiche, il CIRSIL ha focalizzato la sua attenzione sui contenuti specifici dell'insegnamento, contenuti che costituiscono una delle numerose linee che attraversano il suo multiforme campo di interesse. Il lessico costituisce un primo e rilevante punto di osservazione sulla storia dell'insegnamento/apprendimento delle lingue, per la centralità del ruolo che gli è stato sempre attribuito in sfere geografiche e temporali distanti tra loro, come emerge dalla varietà dei contributi qui proposti. Come il precedente, il convegno del 2003 è stato infatti caratterizzato dalla trasversalità che riflette la composizione del Centro.
title: Туризм в России во время пандемии
Creators: name: Афанасьева, Елена
name: Барсукова, Кристина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Полтора года назад никто не мог предположить, как изменится наша жизнь, что появится вирус, из-за которого все, что было для нас доступно, резко перестанет быть таковым. Пандемия COVID-19 оказала значительное влияние на многие секторы мировой экономики. Индустрия туризма была одной из первых, кто пострадал от пандемии COVID19, причем наиболее сильно. В данной статье мы рассмотрим то, как пандемия COVID-19
изменила мировой и российский туристический рынок, а также узнаем о том, как государство способствует развитию внутреннего туризма во время пандемии. Программы в России после пандемии стали направлены на поддержку малого и среднего бизнеса, а другая – это широко обсуждаемая программа кешбэка для внутренних поездок, которая дает туристам право на возмещение части их поездки по России.
Los anglicismos en el lenguaje de la informática en español.
El “misterioso mundo del tecnicismo” a través de foros y glosarios en línea
Creators: name: Pano, Ana
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: L-LIN/12 Lingua e traduzione - Lingua inglese

description: Con questo lavoro, la Pano illustra come la rapida creazione e sviluppo di nuovi dispositivi, programmi e sistemi nei campi dell’informatica e delle nuove tecnologie dell’informazione rende difficile il corretto uso di molti termini ed espressioni specifici di questi settori da parte dei professionisti, dei traduttori e, in generale, degli utenti di queste tecnologie. Rammenta anche che nel mondo dell’informatica così come in altri settori dell’attività umana, l’inglese è oggi la prima lingua dato che in essa si scrivono e pubblicano la maggior parte di studi e manuali tecnici in tutto il mondo. 
L’autrice nota che gli effetti di questi fattori nella formazione del discorso informatico in lingua spagnola sono principalmente due: da una parte, un’elevata instabilità lessico-semantica dei termini; e, dall’altra, una maggiore presenza nei testi in spagnolo – più o meno accettata – di unità lessicali ed espressioni derivanti dall’inglese senza cambiamenti (anglicismi puri), e di calchi semantici e strutturali, risultanti dalla traduzione spagnola di termini e strutture inglesi. Di fronte alle difficoltà che un tale adattamento presenta, i glossari accessibili in rete e aggiornati regolarmente e i forum di discussione, come il TIC del Centro Virtual Cervante,s permettono di risolvere importanti questioni linguistiche fornendo numerose risposte alle domande di esperti, traduttori e utenti e consentendo lo scambio e l’arricchimento di saperi. Attraverso l’analisi di questi spazi, l’autrice rileva che la collaborazione e un approccio dinamico e contestuale nella risoluzione di dubbi e nell’elaborazione di risorse, sono oggi fondamentali per la corretta conformazione di questo linguaggio specifico.
Equity markets, market efficiency and contestability of control in a trans-Atlantic perspective.
Creators: name: Lamandini, Marco
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: IUS/04 Diritto commerciale

description: The article offers a comparative overview of some of the legal determinants affecting the cross-border market for corporate control in a trans-Atlantic perspective, in the wake of directive 2004/25/EC and its implementation by Member States as well as of recent decisions of both the European Court of Justice and the Commission concerning “golden shares” and other protectionist measures adopted by Member States to insulate national champions from the market for corporate control. The article questions whether national (final) ownership really meets the needs of the national community at large, thereby complying with a public interest test, or rather simply meets the quite different needs of local politics to exert an opaque and indirect control over strategic industries (following a “twist the arms” approach in respect to nationals controlling such industries).
Social Banking in Practice: an Italian Case for Corporate Social
Responsibility in Banking
Creators: name: Lamandini, Marco
name: Steiner, Ilan
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: IUS/04 Diritto commerciale

description: The paper introduces an important development in the area of corporate social responsibility in the banking sector, which has recently been accomplished in Italy. A new Italian bank (“Prossima s.p.a.”), incorporated in May 2007, articulates in its articles of association a number of innovative legal provisions that underscore its socially responsible features. To this end, deviation from profit maximization as a single corporate objective and formation of a designated organ (Committee) to guide the board of directors and set the framework for social banking are a landmark in terms of social banking and corporate governance. These provisions balance between shareholders expectations for profit on the one hand, and the interests of other stakeholders and the community at large on the other. The paper assesses the new social banking venture against the backdrop of current debate over corporate social responsibility and the evolution of a social norm that calls for greater corporate citizenship.
Additional file 6: of Optic nerve as a source of activated retinal microglia post-injury
Creators: name: Heuss, Neal
name: Pierson, Mark
name: Roehrich, Heidi
name: McPherson, Scott
name: Gram, Andrea
name: Li, Ling
name: Gregerson, Dale
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: Figure S6. Parameters for counting the GFPhi and GFPlo microglia in the layers of the retina (see manuscript Fig. 6). Cells designated as ‘adjacent’ to the NFL are shown in part a, where they can be seen to be near the nerve fibers and RGC soma. A cell designated as in ‘contact’ with the NFL is shown in part b; it is directly associated with the nerve fiber it is on. Part c shows the arrangement of counting areas on a flatmounted retina, with 4 central regions and 4 peripheral regions. (DOCX 438 kb)
The Optical, Ultraviolet, and X-ray Structure of the Quasar HE 0435-1223
Creators: name: Blackburne, Jeffrey A.
name: Kochanek, Christopher S.
name: Chen, Bin
name: Dai, Xinyu
name: Chartas, George
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Microlensing has proven an effective probe of the structure of the innermost regions of quasars, and an important test of accretion disk models. We present light curves of the lensed quasar HE 0435-1223 in the R band and in the ultraviolet, and consider them together with X-ray light curves in two energy bands that are presented in a companion paper. Using a Bayesian Monte Carlo method, we constrain the size of the accretion disk in the rest-frame near- and far-UV, and constrain for the first time the size of the X-ray emission regions in two X-ray energy bands. The R-band scale size of the accretion disk is about 10^15.23 cm (~23 r_g), slightly smaller than previous estimates, but larger than would be predicted from the quasar flux. In the UV, the source size is weakly constrained, with a strong prior dependence. The UV to R-band size ratio is consistent with the thin disk model prediction, with large error bars. In soft and hard X-rays, the source size is smaller than ~10^14.8 cm (~10 r_g) at 95% confidence. We do not find evidence of structure in the X-ray emission region, as the most likely value for the ratio of the hard X-ray size to the soft X-ray size is unity. Finally, we find that the most likely value for the mean mass of stars in the lens galaxy is ~0.3 M_sun, consistent with other studies.
description: 13 pages, 7 figures. Replaced with version accepted to ApJ
Poetics of return : toward poetic imagination and peacebuilding
Creators: name: Kramer, Christi
Publisher: name: University of British Columbia
Year: 2014

description: Toward a deeper understanding of poetic imagination, this poetic inquiry explores the creative process itself as a “wellspring that feeds the building of peace” (Lederach, 2005, p. 5). I position the study within the dialogic, as contemplative conversation, where utterance is a limitless continuum or whole (Bakhtin, 1986). I ask: Is it possible to write the world well? I listen to what poetry may say. I submit that “poetry witnesses us” (Milosz, 1983, p. 10) and that the gaze of poetry is courtesy (Lilburn, 1999). This study attends to poetic image as an essential attribute of the qualitative research methodology called poetic inquiry. Poetic image is whole (Al-Ghazali, 2010) and it is trace. It may be understood as a place or state: a space for radical meeting (Forché, 1993) of self and other; a multidimensional location (Zwicky, 2011) of potential and tension; a threshold, dihliz (Al-Ghazali in Moosa, 2005). Where poetic image is motion, it may be vertical and verb. Poetic image is not equal to metaphor (Bachelard, 1960). It exists in the sensory world, a doorway into our perception and memory, “enabling us to locate and embody the invisible and the unknown” (Kwasny, 2012, p. 2). It is generative, first of the creative imagination (Ibn Arabi in Corbin, 1998), and exists possibly prior to thought (Al-Ghazali, 2010; Bachelard, 1960). Poetic image may be known as direct ontology (Bachelard, 1960, p. xvi), a phenomenology of the soul (Bachelard, 1960, p. xx). Where both the poetic image and phenomenology require active participation and deny passivity or enslavement to object, in poetic image there may be liberation. Where “there is a sort of poverty of the spirit which stands in glaring contrast to our scientific and technological abundance” (King, 1964), might research performed in humility be an act of reconciliation? Or might poetry, “a source of innocence full of revolutionary forces” directed at a world “my conscience cannot accept” (Elytis, as cited in Ivask, 1981), be the “kind of knowing” Simon seeks, which could support the “reconstruction of social imagination in the service of human freedom?” (Simon, 1992, p. 4).
Adiabatic response for Lindblad dynamics
Creators: name: Avron, J. E.
name: Fraas, M.
name: Graf, G. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the adiabatic response of open systems governed by Lindblad evolutions. In such systems, there is an ambiguity in the assignment of observables to fluxes (rates) such as velocities and currents. For the appropriate notion of flux, the formulas for the transport coefficients are simple and explicit and are governed by the parallel transport on the manifold of instantaneous stationary states. Among our results we show that the response coefficients of open systems, whose stationary states are projections, is given by the adiabatic curvature.
description: 33 pages, 4 figures, accepted version
Spanning trees and the complexity of flood-filling games
Creators: name: Meeks, Kitty
name: Scott, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We consider problems related to the combinatorial game (Free-)Flood-It, in which players aim to make a coloured graph monochromatic with the minimum possible number of flooding operations. We show that the minimum number of moves required to flood any given graph G is equal to the minimum, taken over all spanning trees T of G, of the number of moves required to flood T. This result is then applied to give two polynomial-time algorithms for flood-filling problems. Firstly, we can compute in polynomial time the minimum number of moves required to flood a graph with only a polynomial number of connected subgraphs. Secondly, given any coloured connected graph and a subset of the vertices of bounded size, the number of moves required to connect this subset can be computed in polynomial time.
description: Final typos corrected
Yang-Baxter equation, parameter permutations, and the elliptic beta integral
Creators: name: Derkachov, S. E.
name: Spiridonov, V. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct an infinite-dimensional solution of the Yang-Baxter equation (YBE) of rank 1 which is represented as an integral operator with an elliptic hypergeometric kernel acting in the space of functions of two complex variables. This R-operator intertwines the product of two standard L-operators associated with the Sklyanin algebra, an elliptic deformation of sl(2)-algebra. It is built from three basic operators $\mathrm{S}_1, \mathrm{S}_2$, and $\mathrm{S}_3$ generating the permutation group of four parameters $\mathfrak{S}_4$. Validity of the key Coxeter relations (including the star-triangle relation) is based on the elliptic beta integral evaluation formula and the Bailey lemma associated with an elliptic Fourier transformation. The operators $\mathrm{S}_j$ are determined uniquely with the help of the elliptic modular double.
description: 43 pp., to appear in Russian Math. Surveys
La "Città-Territorio"
Creators: name: Galvani, Adriana
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: M-GGR/02 Geografia economico-politica

description: Ferrara is inscribed in the World Heritage List of UNESCO since 1995, according
to this criterion: "considering that the site is of outstanding universal value, being a
Renaissance city, remarkably planned, which has retained its urban fabric virtually intact and
for representing the concept of the "ideal city"… the completion of this project marked the
birth of modern town planning and influenced its subsequent development".
SInce 1999 UNESCO decided to adjoin the Este ducal residences in the Po Delta, so now the
inscription is: "Ferrara, City of the Renaissance and its Po Delta" which illustrate the
influence of Renaissance culture on the natural landscape in an exceptional manner.
The Delta can be defined a "cultural landscape", an "open air museum" and a "technological
landscape" for the presence of castles and rural residences named "delizie", as Belriguardo,
Verginese, Mesola, rich from the artistic point of view, and for of the big work of drainage
and canalizing until the sea, where the gulf of Goro was supposed to become a big port
contrasting the trades of Venice. The Master of land reclamation, Alfonso II was the last of
the Este family, so Ferrara and the Delta became part of the Vatican State and all the land works were abandoned.
Lembit Põlma välipäevik nr 6
Creators: name: Põlma, Lembit
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1966
Subjects: Ordoviitsium
Eesti
Bresti nõgu
puuraugud
geoloogilised kirjeldused
Ordovician
drill cores
Estonia
Brest Depression
geological descriptions

description: Field notebook with descriptions of Ordovician drill cores from Estonia and Brest Depression (1966-70).
Definizione, acquisizione sperimentale ed elaborazione di traiettorie di riferimento della mano umana per la sintesi di architetture protesiche di arto superiore
Creators: name: Borghi, C.
name: Troncossi, M.
name: Parenti Castelli, V.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: ING-INF/06 Bioingegneria elettronica e informatica
MED/34 Medicina fisica e riabilitativa
ING-IND/34 Bioingegneria industriale
ING-IND/13 Meccanica applicata alle macchine

description: This paper reports an essential part of a wider research activity, which entails the development of a procedure for the Determination of the Optimal Prosthesis Architecture (DOPA) for a given upper limb amputee. A fundamental algorithm of the DOPA procedure performs the kinematic analysis of several prosthetic arm models (also with less than the six degrees of freedom normally required to correctly execute a generic manipulation task). The algorithm must simulate the execution of important daily living activities performed by a prosthesis and thus it requires reference trajectories of the hand. By means of experimental analysis, 59 trajectories of the hand of an able-bodied subject were acquired to identify a modality to correctly perform the corresponding tasks. This paper illustrates in detail the stages of task analysis, experimental acquisition and data processing in order to define the required reference trajectories. The obtained reference trajectories are a temporal succession of the hand pose (position and orientation). A customized algorithm automatically selects the most relevant poses to be considered for the definition of the reference trajectory. The hand pose is reported in the Cartesian Space by means of Natural Coordinates. In order to correctly execute a given task the pose error admitted for the end-effector of the different architectures is associated to each trajectory. In particular, the critical problem to express the orientation error is solved by means of the use of Spherical Rotation Coordinates.
Determinants and Effects of Innovative Activities in Vietnam.
A Firm-level Analysis
Creators: name: Tran, Hien Thu
name: Santarelli, Enrico
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/02 Politica economica

description: This paper investigates the determinants of innovative activities and the innovation-performance relationship for the firm population in Vietnam in 

three consecutive stages: decision – investment – outcome. Cragg’s two-tiered dynamic type-2 Tobit model and instrumental variable GMM method are applied to 

control for the selectivity and endogeneity of R&D and innovation. After controlling for ownership types, industry and regional fixed-effects, key findings 

include: (i) R&D and innovation activities not only stimulate firms’ profitability and growth of sales, but also increase their survival propensity; (ii) 

private innovative firms significantly outperform their peers whereas the combination of young, small, and innovative characteristics in young innovative 

companies (YICs) does not bring the expected higher entrepreneurial performance as how it works in advanced countries; (iii) highly-leveraged firms, 

exporting firms, and diversified firms are more likely to be innovative than their counterparts, but the ability to transform innovative efforts into higher 

profitability and growth can only be witnessed among diversified firms; and (iv) firms being endowed with larger asset pool have more favorable conditions to 

engage in innovation activities, but do not necessarily produce superior performance relatively to their smaller counterparts. However, firm labor
size is positively associated with both R&D intensity and entrepreneurial performance of firms. The dataset of population of existing firms (from 2000 to 

2005) extracted from the annual enterprise survey conducted by Vietnam General Statistics Organization (GSO) is used for the empirical analysis.