cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Revisiting the cosmological coherent oscillation
Creators: name: Kawasaki, Masahiro
name: Kitajima, Naoya
name: Nakayama, Kazunori
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is often the case that scalar fields are produced in the early Universe in the form of coherent oscillation. These scalar fields may have huge abundances and affect the evolution of the Universe. In particular, if the lifetime is long enough, they may cause cosmological disasters. We revisit the issue of coherent oscillation of the scalar field when it couples with another oscillating scalar field, and find a situation that the abundance, or the amplitude of the oscillation, is significantly reduced by a variant type of the adiabatic suppression mechanism. As a concrete example, it is applied to the saxion, a flat direction in the supersymmetric axion model, and we show that the cosmological saxion problem is solved in a particular setup.
description: 22 pages, 7 figures
Additional file 9 of Fungal and bacterial microbiome dysbiosis and imbalance of trans-kingdom network in asthma
Creators: name: Huang, Chunrong
name: Yu, Youchao
name: Du, Wei
name: Liu, Yahui
name: Dai, Ranran
name: Tang, Wei
name: Wang, Ping
name: Zhang, Chenhong
name: Shi, Guochao
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 9: Table S6. PERMANOVA of bacteriome community composition in sputum based on Bray-Curtis distance.
Where the water meets the land : between culture and history in Upper Skagit aboriginal territory
Creators: name: Malone, Molly Sue
Publisher: name: University of British Columbia
Year: 2013

description: Upper Skagit Indian Tribe are a Coast Salish fishing community in western Washington, USA, who face the challenge of remaining culturally distinct while fitting into the socioeconomic expectations of American society, all while asserting their rights to access their aboriginal territory. This dissertation asks a twofold research question: How do Upper Skagit people interact with and experience the aquatic environment of their aboriginal territory, and how do their experiences with colonization and their cultural practices weave together to form a historical consciousness that orients them to their lands and waters and the wider world? Based on data from three methods of inquiry—interviews, participant observation, and archival research—collected over sixteen months of fieldwork on the Upper Skagit reservation in Sedro-Woolley, WA, I answer this question with an ethnography of the interplay between culture, history, and the land and waterscape that comprise Upper Skagit aboriginal territory. This interplay is the process of historical consciousness, which is neither singular nor sedentary, but rather an understanding of a world in flux made up of both conscious and unconscious thoughts that shape behavior. I conclude that the ways in which Upper Skagit people interact with what I call the waterscape of their aboriginal territory is one of their major distinctive features as a group. Their approach to the world is framed by their experience of this space and the divide between land and water within it, which is permeable and constantly shifting. Community members understand the cultural salience of places within the waterscape, including places that are now submerged beneath lakes created by hydroelectric dams. Oral narratives remain important in Upper Skagit culture today even though the narratives are accessed in changing ways, such as reading and listening to recordings or invoking parts of stories at carefully chosen times. The regulatory and legal regimes of the colonial process—examined as both broad strokes and fine grains—shape people’s consciousness and behavior in the waterscape. This case study both builds on and contributes to the literatures of Coast Salish ethnography, cultural constructions of place, cultural distinctiveness of indigenous groups, and the anthropology of water.
LHC phenomenology of general SU(2)xSU(2)xU(1) models
Creators: name: Ježo, Tomáš
name: Klasen, Michael
name: Schienbein, Ingo
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: General SU(2)xSU(2)xU(1) models represent a well-motivated intermediate step towards the unification of the Standard Model gauge groups. Based on a recent global analysis of low-energy and LEP constraints of these models, we perform numerical scans of their various signals at the LHC. We show that total cross sections for lepton and third-generation quark pairs, while experimentally easily accessible, provide individually only partial information about the model realized in Nature. In contrast, correlations of these cross sections in the neutral and charged current channels may well lead to a unique identification.
description: 5 pages, 5 figures; v2 matches the published version; v3 added references
Anomolyna Fairmaire 1897
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Anomolyna

description: Anomolyna Fairmaire, 1897a
[3 species].
Type species Anomolyna picticollis Fairmaire, 1897, 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 135, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Control design for untimed Petri nets using Markov Decision Processes
Creators: name: DAOUI, Cherki
name: LEFEBVRE, Dimitri
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2017
Subjects: discrete event systems, Petri nets, control design, Markov decision process, value iteration algorithm

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
Management and decisions in the structures of human activities
Creators: name: GALANC, Tadeusz
name: KOŁWZAN, Wiktor
name: PIERONEK, Jerzy
name: SKOWRONEK-GRĄDZIEL, Agnieszka
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2017
Subjects: management, decision making, structure, algorithm, scientific language

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
Diffusion limits for the queue length of jobs in multi-server open queueing networks
Creators: name: GREIČIUS, Edvinas
name: MINKEVIČIUS, Saulius
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2017
Subjects: performance evaluation, multi-server open queueing network, limit theorem, queue length

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
MESFET high-power high-efficiency MMIC amplifiers at X-band with 30% bandwidth
Creators: name: Van Den Bogaart, F.L.M.
name: De Hek, A.P.
name: De Boer, A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1996
Subjects: ING-INF/01 Elettronica

description: A 3-Watt and a 5-Watt high-efficiency high-power amplifier are presented. The amplifiers are manufactured in a GaAs MESFET process. The 3-Watt amplifier exhibits 4 Watt output power at 10.6 GHz with an associated PAE of 43% and more than 3 Watt output power with more than 30% PAE from 8 GHz to 11.3 GHz. The 5-Watt amplifier exhib­its 7W output power at 8.8 GHz with an associated PAE of 40% and more than 5 Watt output power with more than 30% PAE from 7.8 GHz to 10.6 GHz.
The Optical Depth of H II Regions in the Magellanic Clouds
Creators: name: Pellegrini, E. W.
name: Oey, M. S.
name: Winkler, P. F.
name: Points, S. D.
name: Smith, R. C.
name: Jaskot, A. E.
name: Zastrow, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We exploit ionization-parameter mapping as a powerful tool to measure the optical depth of star-forming HII regions. Our simulations using the photoionization code CLOUDY and our new, SURFBRIGHT surface brightness simulator demonstrate that this technique can directly diagnose most density-bounded, optically thin nebulae using spatially resolved emission line data. We apply this method to the Large and Small Magellanic Clouds, using the data from the Magellanic Clouds Emission Line Survey. We generate new HII region catalogs based on photoionization criteria set by the observed ionization structure in the [SII]/[OIII] ratio and Ha surface brightness. The luminosity functions from these catalogs generally agree with those from Ha-only surveys. We then use ionization-parameter mapping to crudely classify all the nebulae into optically thick vs optically thin categories, yielding fundamental new insights into Lyman continuum radiation transfer. We find that in both galaxies, the frequency of optically thin objects correlates with Ha luminosity, and that the numbers of these objects dominate above log L\geq37.0. The frequencies of optically thin objects are 40% and 33% in the LMC and SMC, respectively. Similarly, the frequency of optically thick regions correlates with H I column density, with optically thin objects dominating at the lowest N(HI). The integrated escape luminosity of ionizing radiation is dominated by the largest regions, and corresponds to luminosity-weighted, ionizing escape fractions from the H II region population of \geq0.42 and \geq0.40 in the LMC and SMC, respectively. These values correspond to global galactic escape fractions of 4% and 11%, respectively. This is sufficient to power the ionization rate of the observed diffuse ionized gas in both galaxies. Our results suggest the possibility of significant galactic escape fractions of Lyman continuum radiation.
description: 31 pages, 24 figures, 6 tables, accepted to ApJ Errors in Tables B1 and B2 object types corrected. Erratum bundled with arxiv submission as "erratum_ms.pdf"
Krisis Iklim: Tahun 2023 sebagai Tahun Paling Panas
Creators: name: Ating, Rashid
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390107
subject: Humanities and social sciences curriculum and pedagogy (excl. economics, business and management)
classificationCode: 460105
subject: Applications in social sciences and education
classificationCode: 500206
subject: History and philosophy of the social sciences

description: Dalam satu sidang media di Washington pada 12 Januari lalu, Pentadbiran Aeronautik dan Angkasa Leas (NASA) dan National Oceanic and Atmospheric Administration (NOAA) Amerika Syarikat melaporkan bahawa suhu purata permukaan bumi pada tahun 2023 adalah yang paling panas
Cutaneous Force Feedback as a Sensory Subtraction Technique in Haptics
Creators: name: Prattichizzo, Domenico
name: Pacchierotti, Claudio
name: Rosati, Giulio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: A novel sensory substitution technique is presented. Kinesthetic and cutaneous force feedback are substituted by cutaneous feedback (CF) only, provided by two wearable devices able to apply forces to the index finger and the thumb, while holding a handle during a teleoperation task. The force pattern, fed back to the user while using the cutaneous devices, is similar, in terms of intensity and area of application, to the cutaneous force pattern applied to the finger pad while interacting with a haptic device providing both cutaneous and kinesthetic force feedback. The pattern generated using the cutaneous devices can be thought as a subtraction between the complete haptic feedback (HF) and the kinesthetic part of it. For this reason, we refer to this approach as sensory subtraction instead of sensory substitution. A needle insertion scenario is considered to validate the approach. The haptic device is connected to a virtual environment simulating a needle insertion task. Experiments show that the perception of inserting a needle using the cutaneous-only force feedback is nearly indistinguishable from the one felt by the user while using both cutaneous and kinesthetic feedback. As most of the sensory substitution approaches, the proposed sensory subtraction technique also has the advantage of not suffering from stability issues of teleoperation systems due, for instance, to communication delays. Moreover, experiments show that the sensory subtraction technique outperforms sensory substitution with more conventional visual feedback (VF).
Die kritische Extremitätenischämie bei Patienten mit dialysepflichtiger Niereninsuffizienz - klinischer Verlauf und Therapieergebnisse
Creators: name: Meyer, Christiane
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2007
Subjects: subject: Elektronische Publikation
subject: Hochschulschrift
subject: Online-Publikation
subject: Zsfassung in engl. Sprache
subject: 616.6

description: Urämische Patienten mit einer chronisch kritischen Extremitätenischämie haben eine ausgesprochen schlechte Prognose. Wir analysierten 2000-2006 116 dialysepflichtige CLIPatienten. 27% der Patienten überlebten ein Jahr nach Diagnosestellung amputationsfrei, 17% mit ein - oder beidseitiger Majoramputation. Die 1-Jahres-Mortalität betrug 56%. Bei der Untersuchung von Einflussfaktoren auf den Outcome-Parameter Majoramputation zeigte sich, dass die Quantität des Unterschenkelausstroms entscheidend war (p Für die hohe Sterblichkeit der PAVK-Patienten zeichnen kardiale und zerebrale Ereignisse verantwortlich. Im untersuchten Kollektiv dialysepflichtiger CLI-Patienten war neben kardialen Ereignissen die Sepsis ausgehend von der ischämischen Extremität Haupttodesursache. Über die Bedeutung einer Markererkrankung hinausgehend, wird die PAVK zur eigenständigen Todesursache der Patienten. Ausgewählte atherogene Risikofaktoren hatten in den vorliegenden schweren Stadien der Erkrankung weder auf die Amputations- noch auf die Mortalitätsrate einen Einfluss. Die Progressionshemmung der Arteriosklerose muss bei nierenranken Patienten bereits in den frühen Stadien der Niereninsuffizienz realisiert werden.
description: Uremic patients with chronic critical limb ischemia (CLI) have a very poor prognosis. Between 2000 and 2006, we analyzed 116 dialysis patients with CLI. One year following diagnosis, 27% of patients survived without amputation, whereas 17% underwent a one or double-sided major amputation. The one-year mortality rate was 56%. Analysis of the clinical indicators predicting major amputation revealed that lower leg blood flow was the most significant (p The high mortality rate of patients with peripheral arterial occlusive disease is due to cardiac and cerebral causes. In our cohort of dialysis patients with CLI, the main reasons for mortality were cardiac factors and sepsis, originating from the ischemic limb. Being more than just an indicator, peripheral arterial occlusive disease is becoming a major reason for mortality. In those advanced states of the disease, selected atherogenic risk factors did not have any influence either on the amputation or on the mortality rates. In patients with chronic renal insufficiency, clinical intervention for atherosclerosis should be introduced at the early stages to prevent its progression.
X-band high PAE MMIC HPA for space radar applications
Creators: name: Decaesteke, Th.
name: Villard, M.J
name: Bois, J.R.
name: Laforge, E.
name: Chaubet, M.
name: Huguet, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1996
Subjects: ING-INF/01 Elettronica

description: A MMIC 2-Watt 5-stage amplifier (HPA) has been successfully designed in one foundry run. This HPA, developed for a space Radar application at X band, has a 40dB linear gain, an output power of 34dBm with a 32% associated Power Added Efficiency (with a maximum of 39%) and uses the THOMSON TCS HP07 technology (Lg=0.7um) which is on the way to be qualified for Space Application. The tests have been performed both on wafer and in package.
Self-consistent supercell approach to alloys with local environment effects
Creators: name: Peil, Oleg E.
name: Ruban, Andrei V.
name: Johansson, Börje
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present an efficient and accurate method for calculating electronic structure and related properties of random alloys with a proper treatment of local environment effects. The method is a generalization of the locally self-consistent Green's function (LSGF) technique for the exact muffin-tin orbital (EMTO) method. An alloy system in the calculations is represented by a supercell with a certain set of atomic distribution correlation functions. The Green's function for each atom in the supercell is obtained by embedding the cluster of neighboring atoms lying within a local interaction zone (LIZ) into an effective medium and solving the cluster Dyson equation exactly. The key ingredients of the method are locality, which makes it linearly scaling with the number of atoms in the supercell, and coherent-potential self-consistency of the effective medium, which results in a fast convergence of the electronic structure with respect to the LIZ size. To test the performance and accuracy of the method, we apply it to two systems: Fe-rich bcc-FeCr random alloy with and without a short-range order, and a Cr-impurity on the Fe surface. Both cases demonstrate the importance of taking into account the local environment effects for correct description of magnetic and bulk properties.
description: 15 pages, 9 figures, published in PRB
Gender Differences in Performance in Mathematics at the End of Lower Secondary School: Evidence From the INVALSI Test in Emilia-Romagna (Italy)
Creators: name: Matteucci, Mariagiulia
name: Stefania, Mignani
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-S/01 Statistica
M-PSI/03 Psicometria
SECS-S/05 Statistica sociale

description: The paper deals with the investigation of gender differences in performances in mathematics for Italian students at the end of lower secondary school in the Emilia-Romagna region. The study is based on a new large-scale assessment test developed and administered by the National Evaluation Institute for the School System (INVALSI). Given the evidence in the literature which favours males, performances of female and male students are compared using different approaches. In particular, scores proposed by educational experts based on item subgroups were considered, while a model-based approach was used within item response theory to estimate ability scores. The results revealed a significant advantage to males compared with females in overall performance, while no meaningful differences were observed with respect to item domain and item type. Following this, an interpretable item map was developed crossing expert opinions with IRT abilities, and plausible proficiency levels were defined. According to the map-based student classification, a relatively lower percentage of females fell into the highest proficiency groups with respect to males.
Untersuchungen zum Einsatz miniaturisierter Katheter mit unterschiedlichen Kontrastmitteln in der invasiven Diagnostik der peripheren arteriellen Verschlusskrankheit
Creators: name: Weidemüller, Gerd
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2005
Subjects: subject: Elektronische Publikation
subject: Zsfassung in engl. Sprache
subject: 616.1

description: In der vorliegenden Arbeit wurden insgesamt 465 Becken-Bein-Übersichtsangiographien retrospektiv ausgewertet, die in der Zeit vom 1.1.1995-31.12.1996 am Städtischen Klinikum Dessau durchgeführt wurden. Die Patienten waren an einer chronisch arteriellen Verschlusskrankheit des Stadiums IIa - IV erkrankt. In der Auswertung der Arbeit konnte gezeigt werden, dass keine statistisch signifikante Unterschiede hinsichtlich der Qualität der Gefäßdarstellung bei Verwendung von Kontrastmitteln unterschiedlicher Firmen und unterschiedlicher Jodkonzentrationen unter Verwendung von 3F und 4F Kathetern bestanden. Es konnte aufgezeigt werden, dass mit der hier vorgestellten Untersuchungsmethode die Verwendung eines dünnlumigeren 3F Katheters nicht gleichbedeutend ist mit einem Verlust an Bildqualität. Die verwendeten niederosmolaren nichtionischen Kontrastmittel Ultravist 300, Solutrast 300, Imeron 300 und Visipaque 320 sind hinsichtlich der Qualität der Gefäßdarstellung in gleicher Weise für die Becken-Bein-Übersichtsangiographie unter Verwendung eines 3F Katheters geeignet. Bei der Analyse der punktions- und katheterassoziierten Komplikationen bezogen auf die Untersuchungen unter Verwendung von 3F und 4F Kathetern kann kein signifikanter Unterschied ermittelt werden.
description: In this study we analysed retrospectively the results of 465 pelvic-lower limb angiographies which were done in the time from 1.1.1995 to 31.12.1996 at the Radiologic Institut of the Städtisches Klinikum Dessau. All patients suffered from chronic arterial occlusive disease with stage IIa - IV. Different contrast media with different content of iodide or different sized catheters did not make a significant difference to the quality of the angiography. The use of a 3 F catheter is not associated with a loss of quality of the angiography. The nonionic low osmolar contrast media Ultravist 300, Solutrast 300, Imeron 300 and Visipaque 320 can be used for pelvic- lower limb angiography with a 3 F catheter. Analysis of the complications caused by vascular puncture and catheter-associated complications did not show any significant difference between 3 F and 4 F catheters.
A new algorithm for computing the 2-dimensional matching distance between size functions
Creators: name: Biasotti, Silvia
name: Cerri, Andrea
name: Frosini, Patrizio
name: Giorgi, Daniela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: MAT/03 Geometria
INF/01 Informatica

description: Size Theory has proven to be a useful geometrical/topological approach to shape analysis and comparison. Originally introduced by considering 1-dimensional properties of shapes, described by means of real-valued functions, it has been subsequently generalized to take into account multidimensional properties coded by functions valued in Rk. In the context of Size Theory, this generalization has led to introduce a shape descriptor called k-dimensional size function, and a distance to compare size functions, namely the k-dimensional matching distance. This paper proposes a novel computational framework to deal with the 2-dimensional case of Size Theory. More precisely, some new theoretical results about approximating the 2-dimensional matching distance are presented, leading to the formulation of an algorithm for its computation (up to an arbitrary error threshold).
Decomposition of homogeneous polynomials with low rank
Creators: name: Ballico, Edoardo
name: Bernardi, Alessandra
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: MAT/03 Geometria

description: Let $F$ be a homogeneous polynomial of degree $d$ in $m+1$ variables defined over an algebraically closed field of characteristic zero and suppose that $F$ belongs to the $s$-th secant varieties of the standard Veronese variety $X_{m,d}\subset \mathbb{P}^{{m+d\choose d}-1}$ but that its minimal decomposition as a sum of $d$-th powers of linear forms $M_1, \ldots , M_r$ is $F=M_1^d+\cdots + M_r^d$ with $r>s$. We show that if $s+r\leq 2d+1$ then such a decomposition of $F$ can be split in two parts:  one of them is made by linear forms that can be written using only two variables, the other part is  uniquely determined once one has fixed the first part.
We also obtain a uniqueness theorem for the minimal decomposition of $F$ if the rank is at most $d$ and a mild condition is satisfied.
Chirality, causality, and fluctuation-dissipation theorems in non-equilibrium steady states
Creators: name: Wang, Chenjie
name: Feldman, D. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Edges of some quantum Hall liquids and a number of other systems exhibit chiral transport: excitations can propagate in one direction only, e.g., clockwise. We derive a family of fluctuation-dissipation relations in non-equilibrium steady states of such chiral systems. The theorems connect nonlinear response with fluctuations far from thermal equilibrium and hold only in case of chiral transport. They can be used to test chiral or non-chiral character of the system.
description: published version
Primi appunti sull'evoluzione del decurionato cittadino
Creators: name: Randazzo, Salvatore
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: IUS/18 Diritto romano e diritti dell'antichità

description: La comunicazione presenta una ipotesi di lavoro sulla storia di decurioni.
L'autore ritiene che l'evoluzione del ruolo dei decurioni durante l'Impero Romano, in termini sociali e politici, nonché la persecuzione costante a cui sono sottoposti. Un'indicazione specifica di questa evoluzione, non sempre coerente, può essere vista nella grande varietà  di appellativi menzionati dalle fonti: immagine di un potere in progressivo cambiamento nelle città  romane.
The paper presents a working hypothesis about the history of decurions. 

The author considers the changing role of decurions during the Roman Empire in social and political terms and the constant harassment to which they are subjected. A specific indication of this evolution, not always consistent, could be seen in the wide variety of names mentioned by the sources: the image of a progressive changing power in Roman cities.
Markovian evolution of classical and quantum correlations in transverse-field XY model
Creators: name: Pal, Amit Kumar
name: Bose, Indrani
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transverse-field XY model in one dimension is a well-known spin model for which the ground state properties and excitation spectrum are known exactly. The model has an interesting phase diagram describing quantum phase transitions (QPTs) belonging to two different universality classes. These are the transverse-field Ising model and the XX model universality classes with both the models being special cases of the transverse-field XY model. In recent years, quantities related to quantum information theoretic measures like entanglement, quantum discord (QD) and fidelity have been shown to provide signatures of QPTs. Another interesting issue is that of decoherence to which a quantum system is subjected due to its interaction, represented by a quantum channel, with an environment. In this paper, we determine the dynamics of different types of correlations present in a quantum system, namely, the mutual information, the classical correlations and the quantum correlations, as measured by the quantum discord, in a two-qubit state. The density matrix of this state is given by the nearest-neighbour reduced density matrix obtained from the ground state of the transverse-field XY model in 1d. We assume Markovian dynamics for the time-evolution due to system-environment interactions. The quantum channels considered include the bit-flip, bit-phase-flip and phase-flip channels. Two different types of dynamics are identified for the channels in one of which the quantum correlations are greater in magnitude than the classical correlations in a finite time interval. The origins of the different types of dynamics are further explained. For the different channels, appropriate quantities associated with the dynamics of the correlations are identified which provide signatures of QPTs. We also report results for further-neighbour two-qubit states and finite temperatures.
description: 10 pages, 11 figures, revtex4-1. arXiv admin note: text overlap with arXiv:1205.1300
Some Marginal Remarks on Prof. Randazzo's Paper
Creators: name: Sirks, A. J. B.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: IUS/18 Diritto romano e diritti dell'antichità

description: L'interessante intervento del Prof. Randazzo sulla continuità e discontinuità del decurianato ha offerto molti spunti di riflessione. Certamente il decurionato rappresenta in questi secoli, oggetto del Convegno, la spina dorsale dell'amministrazione locale. Vorrei fare alcune osservazioni in proposito, anche in relazione a quanto detto dal prof. Randazzo.
Prof. Randazzo’s paper on the question of continuity or discontinuity in the decurionate is very interesting and he made many inspiring observations. It is a long period we are talking of, and the decurionate was in any case for a greater part of this period the backbone of local government. It is, therefore, a large subject and I can only hope to make some marginal remarks and contribute to his paper.
Ordered direct implicational basis of a finite closure system
Creators: name: Adaricheva, Kira
name: Nation, J. B.
name: Rand, Robert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Logic in Computer Science (cs.LO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Closure system on a finite set is a unifying concept in logic programming, relational data bases and knowledge systems. It can also be presented in the terms of finite lattices, and the tools of economic description of a finite lattice have long existed in lattice theory. We present this approach by describing the so-called D-basis and introducing the concept of ordered direct basis of an implicational system. A direct basis of a closure operator, or an implicational system, is a set of implications that allows one to compute the closure of an arbitrary set by a single iteration. This property is preserved by the D-basis at the cost of following a prescribed order in which implications will be attended. In particular, using an ordered direct basis allows to optimize the forward chaining procedure in logic programming that uses the Horn fragment of propositional logic. One can extract the D-basis from any direct unit basis S in time polynomial in the size of S, and it takes only linear time of the cardinality of the D-basis to put it into a proper order. We produce examples of closure systems on a 6-element set, for which the canonical basis of Duquenne and Guigues is not ordered direct.
description: 25 pages, 10 figures; presented at AMS conference, TACL-2011,ISAIM-2012 and at RUTCOR seminar
Quid agendum ? "Net generation" e competenze digitali
Creators: name: Comba, Valentina
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: M-PED/03 Didattica e pedagogia speciale

description: It is a long time that a large discussion is open about the net generation and the need to update teaching methods. A large number of papers are published about this topic; the most relevant reviews  point out that, in general, the use of social networks by the net generation  does not mean that young people has natural digital skills/competencies they apply in the learning activities.
The present short review discusses the literature about this subject; different definitions of “digital literacies are considered”. In particular a JISC study “Thriving in the 21st century. Learning Literacies for the Digital Age” (LLiDA Project)  is cited, because its approach to a very detailed definition of  learning literacies.
Moreover, recent papers show that the search and reading approach of the net generation – though making use of the most recently available sources like Wikipedia – is lacking of selection criteria and quality evaluation skills.
In the conclusions the Author asks some questions about the best e-learning methods to teach digital literacies, in a context where the change is so fast, and the traditional LMS approach may be a waste of time and money (and, very difficult to put in practice in a time of retrenchment for Italian Universities).
Punishment and Grace: On the Economics of Permanent Amnesties
Creators: name: Franzoni, Luigi Alberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1996
Subjects: SECS-P/01 Economia politica

description: This paper extends the literature on tax amnesties by considering two special grace programmes. The first is an offer by the government not to investigate taxpayers' accounts, the second not to prosecute indicted evaders. I analyse the impact of both measures on the taxpayers' optimal behaviour and the government's net revenue, and derive the conditions under which it would be desirable to implement them on a permanent basis.
Istituzioni, stabilita’ e crescita nelle regioni italiane
Creators: name: Cellini, Roberto
name: Scorcu, Antonello E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1996
Subjects: SECS-P/02 Politica economica

description: Il lavoro analizza la relazione tra la diversa performance nella crescita economica delle regioni italiane nel periodo 1970-91, da un lato, e le caratteristiche di assetto istituzionale e di stabilità economica e sociale dall’altro. Gli indicatori per tali fenomeni, che risultano rilevanti nelle comparazioni internazionali, hanno un effetto più sfumato nel caso dell’esperienza delle regioni italiane.
Nonzero theta_13 signals nonmaximal atmospheric neutrino mixing
Creators: name: Eby, David A.
name: Frampton, Paul H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From recent groundbreaking experiments, it is now known that the Pontecorvo-Maki-Nakagawa-Sakata mixing differs significantly from the tribimaximal model in which theta_13=0 and theta_23=pi/4. Flavor symmetry can require that the departures from these two equations are linearly related. T' and A_4, which successfully accommodated the pre-T2K Pontecorvo-Maki-Nakagawa-Sakata matrix, predict that 38.07 deg.< theta_23 <39.52 deg. at 95% C.L.. The best fit values, combining the model predictions with T2K, MINOS, Double Chooz, Daya Bay, and RENO data, are theta_23=38.7 deg. and theta_13=8.9 deg..
description: 4 pages, 1 figure. Published version Phys. Rev. D
The International Coordination of Monetary Policy: A Game-Theoretic Reformulation
Creators: name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: SECS-P/01 Economia politica

description: This paper reformulates the issue of the international coordination of monetary policy in the framework of an extended game with observable delay, where govern-ments are required to set the timing of their respective actions before proceeding to the actual choice of their monetary policies. This allows to shrink significantly the set of equilibria.
Antandroyanus Lacroix 1993
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Antandroyanus

description: Antandroyanus Lacroix, 1993
[1 species].
Type species Encya decorsei Dewailly, 1950, 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 135, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
On the Regulation of a Vertically Differentiated Market
Creators: name: Lambertini, Luca
name: Mosca, Manuela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: SECS-P/01 Economia politica

description: The aim of this paper is to investigate a vertically differentiated market served either by a multiproduct monopolist or by duopolists, in which a public authority aiming at increasing the welfare level can choose among two instruments, namely, quality taxation/subsidization, and minimum quality standard. In the monopoly case they are equivalent as to the social welfare level, in that both allow the regulator to achieve the second best level of social welfare he would attain if he were to set qualities under the monopoly pricing rule, while they are not equivalent in terms of the distribution of surplus. In the duopoly regime, we show that there exists a taxation/subsidization scheme inducing firms to produce the socially optimal qualites.
Valence-bond crystals in the kagome spin-1/2 Heisenberg antiferromagnet: a symmetry classification and projected wave function study
Creators: name: Iqbal, Yasir
name: Becca, Federico
name: Poilblanc, Didier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper, we do a complete classification of valence-bond crystals (VBCs) on the kagome lattice based on general arguments of symmetry only and thus identify many new VBCs for different unit cell sizes. For the spin-1/2 Heisenberg antiferromagnet, we study the relative energetics of competing gapless spin liquids (SLs) and VBC phases within the class of Gutzwiller-projected fermionic wave functions using variational Monte Carlo techniques, hence implementing exactly the constraint of one fermion per site. By using a state-of-the-art optimization method, we conclusively show that the U(1) Dirac SL is remarkably stable towards dimerizing into all 6-, 12- and 36-site unit cell VBCs. This stability is also preserved on addition of a next-nearest-neighbor super-exchange coupling of both antiferromagnetic and ferromagnetic (FM) type. However, we find that a 36-site unit cell VBC is stabilized on addition of a very small next-nearest-neighbor FM super-exchange coupling, i.e. |J2|~0.045, and this VBC is the same in terms of space-group symmetry as that obtained in an effective quantum dimer model study. It breaks reflection symmetry, has a nontrivial flux pattern and is a strong dimerization of the uniform RVB SL.
description: 16 pages, 25 figures. Invited paper for Focus issue on "Quantum Spin Liquids" of the New Journal of Physics
Le incongruenze del credito d’imposta sui dividendi: un esempio di casualita’ della politica tributaria.
Creators: name: Matteuzzi, Massimo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1995
Subjects: SECS-P/03 Scienza delle finanze

description: In questo lavoro si dimostra che la discipina del credito di imposta sui dividendi è divenuta incoerente col il regime di indeducibilità dell’ILOR dalla base dell’imposta societaria, vigente dopo il 1991. Vengono quindi esaminate le distorsioni che sono state create da tali incongruenze, che avvalorano l’ipotesi di un notevole grado di improvvisazione nella politica tributaria
Minimum Quality Standards and Collusion
Creators: name: Ecchia, Giulio
name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1995
Subjects: SECS-P/01 Economia politica

description: We model the introduction of a minimum quality standard in a vertically differentiated duopoly. We extend the literature in determining the standard endogenously, showing that the maximisation of social welfare entails an increase in the surplus accruing to consumers served by the low quality firm and a decrease in the surplus of the remaining consumers. Then, we consider the effects of the standard on the stability of price collusion, proving that the standard makes it more difficult for firms to collude if consumers are sufficiently rich.
Prosecutorial discretion and criminal deterrence
Creators: name: Franzoni, Luigi Alberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1995
Subjects: SECS-P/01 Economia politica

description: This paper develops a model of law enforcement in which the indicted and the enforcer can negotiate the level of the penalty by means of a settlement. The emphasis of the analysis is on the credibility of the set- tlement offer: the enforcer cannot threaten an incredibly large conviction rate if the negotiation fails. The introduction of the negotiation stage brings about several novel features of the optimal enforcement policy, one of which is the possibility that a finite penalty is optimal (globally or locally). We show that the skimming process associated with the negotiation stage reduces the incen- tives for the enforcer to carry out thorough investigations and increases the rate of noncompliance.
Intraindustry trade under vertical product differentiation
Creators: name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1995
Subjects: SECS-P/01 Economia politica

description: The paper focuses on trade between two countries where a vertically differentiated commodityis produced by a single firm in each country, operating initially in autarkic conditions. It is assumed that the two countries have overlapping income distributions, giving thus rise, under certain conditions, to two-way trade, i.e., a proper intraindustry trade. It emerges that while consumers always benefit from trade, especially if two-way trade arises, firms may have conflicting preferences on the choice between (i) autarky and trade, as well as (ii) one-way trade and two-way trade.
Additional file 1 of Pulmonary endothelium-derived PD-L1 induced by the H9N2 avian influenza virus inhibits the immune response of T cells
Creators: name: Zhang, Qian
name: Mu, Xiang
name: Dong, Hong
name: Hu, Ge
name: Zhang, Tao
name: He, Cheng
name: Siddique, Naila
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Supplementary Figure S1. Map of the PD-L1 overexpression plasmids. According to the current genomic database of the CD274 gene. The targets were designed to include the upstream of the transcript. The PAM sequences of the target sites for CRISPR were TGG. Primers were synthesized, and the oligo dimer was inserted into the vector. DH5a competent cells were used for conversion. Plasmids A and B were mixed at a ratio of 1:1, and RPMECs were transfected with Lipofectamine 3000 reagent according to the instructions. (A) Map of plasmid 1 for MS2-P64-NSF1 expression. (B) Map of plasmid 2 for dCas9-vp64 and gRNA expression.
Adiabatic internuclear potentials obtained by energy variation with the internuclear-distance constraint
Creators: name: Taniguchi, Yasutaka
name: Kanada-En'yo, Yoshiko
name: Suhara, Tadahiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We propose a method to obtain adiabatic internuclear potentials via energy variation with the intercluster-distance constraint. The adiabatic $^{16}$O + $^{16,18}$O potentials obtained by the proposed method are applied to investigate the effects of valence neutrons in $^{16}$O + $^{18}$O sub-barrier fusions. Sub-barrier fusion cross sections of $^{16}$O + $^{18}$O are enhanced more compared to those of $^{16}$O + $^{16}$O because of distortion of valence neutrons in $^{18}$O.
description: 11 pages, 5 figures
Delectric heating pretreatment of organic slurries
Creators: name: Nkansah-Boadu, Frank
Publisher: name: University of British Columbia
Year: 2014

description: This study reports on the research findings from the investigations of three studies conducted on dielectric heating treatments of separated dairy manure and sewage sludge for the purpose of solids disintegration and nutrients release were carried out under batch operation. The treatment processes investigated included; radiofrequency/hydrogen peroxide advanced oxidation process (RF/H2O2-AOP), microwave/hydrogen peroxide advanced oxidation process (MW/H2O2-AOP) and combination of conventional heating (CH) and MW/H2O2-AOP. The broad objectives were to investigate the effects and factors affecting these processes. Significant factors affecting the RF/H2O2-AOP process; hydrogen peroxide dosage, heating time and input power were optimized using surface response methodology. The optimized operating conditions were determined to be an input power of 63%, holding time 60 min and H2O2 dose of 1.1% for orthophosphate release, and an input power of 71%, holding time 5 min and H2O2 dose of 2.4% for soluble chemical oxygen demand. The second study was to examine the effects of organic acids (acetic, oxalic and citric) and mineral acids (sulfuric and hydrochloric acid) as acidifying reagents in MW/H2O2-AOP. The results showed that organic acids were good acidifying reagents comparable to mineral acids. The MW/H2O2-AOP and oxalic acid treatment could be combined into a single-stage process which could release phosphates, solubilize solids and remove calcium from dairy manure at the same time. A mixture of oxalic and mineral acids could produce the maximum volume of clear supernatant. A combination of CH and MW/H2O2-AOP was applied for the treatment of aerobic sewage sludge and dairy manure in the final study. The substrates were preheated by CH method (40oC, 50oC and 60oC) followed by MW/H2O2-AOP (100oC and 120oC). The maximum SCOD/TCOD ratio obtained for sewage sludge and dairy manure were 60% and 22%, respectively. The best treatment conditions for COD solubilization for both sewage sludge and dairy manure was obtained for the treatment set conducted at CH temperature of 60ºC followed by MW temperature 120ºC with hydrogen peroxide. A maximum ortho-P/TP ratio of 50% and 98% was obtained for sludge and dairy manure, respectively. The overall results suggest that dielectric heating was effective in the treatment of dairy manure and sewage.
Random harmonic functions in growth spaces and Bloch-type spaces
Creators: name: Eikrem, Kjersti Solberg
Publisher: name: arXiv
Year: 2012
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30B20, 31B05, 30H30, 42B05

description: Let $h^\infty_v(\mathbf D)$ and $h^\infty_v(\mathbf B)$ be the spaces of harmonic functions in the unit disk and multi-dimensional unit ball which admit a two-sided radial majorant $v(r)$. We consider functions $v $ that fulfill a doubling condition. In the two-dimensional case let $u (re^{i\ta},ξ) = \sum_{j=0}^\infty (a_{j0} ξ_{j0} r^j \cos jθ+a_{j1} ξ_{j1} r^j \sin jθ)$ where $ξ=\{ξ_{ji}\}%_{k=0}^\infty $ is a sequence of random subnormal variables and $a_{ji}$ are real; in higher dimensions we consider series of spherical harmonics. We will obtain conditions on the coefficients $a_{ji} $ which imply that $u$ is in $h^\infty_v(\mathbf B)$ almost surely. Our estimate improves previous results by Bennett, Stegenga and Timoney, and we prove that the estimate is sharp. The results for growth spaces can easily be applied to Bloch-type spaces, and we obtain a similar characterization for these spaces, which generalizes results by Anderson, Clunie and Pommerenke and by Guo and Liu.