cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Poverty and distributional effects of carbon pricing in low- and middle- income countries
title: a global comparative analysis
titleType: Subtitle
Creators: name: Dorband, Ira Irina
name: Jakob, Michael
name: Kalkuhl, Matthias
name: Steckel, Jan Christoph
Publisher: name: Universität Potsdam
Year: 2019

description: Even though concerns about adverse distributional implications for the poor are one of the most important political challenges for carbon pricing, the existing literature reveals ambiguous results. For this reason, we assess the expected incidence of moderate carbon price increases for different income groups in 87 mostly low- and middle-income countries. Building on a consistent dataset and method, we find that for countries with per capita incomes of below USD 15,000 per year (at PPP-adjusted 2011 USD) carbon pricing has, on average, progressive distributional effects. We also develop a novel decomposition technique to show that distributional outcomes are primarily determined by differences among income groups in consumption patterns of energy, rather than of food, goods or services. We argue that an inverse U-shape relationship between energy expenditure shares and income explains why carbon pricing tends to be regressive in countries with relatively higher income. Since these countries are likely to have more financial resources and institutional capacities to deal with distributional issues, our findings suggest that mitigating climate change, raising domestic revenue and reducing economic inequality are not mutually exclusive, even in low- and middle-income countries.
description: Postprints der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe, 103
Differential Discounting and Present Impact of Past Information
Creators: name: Brandimarte, Laura
name: Vosgerau, Joachim
name: Acquisti, Alessandro
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 80703 Human Information Behaviour
subject: FOS: Media and communications
subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: How does information about a person's past, accessed now, affect individuals' impressions of that person? In 2 survey experiments and 2 experiments with actual incentives, we compare whether, when evaluating a person, information about that person's past greedy or immoral behaviors is discounted similarly to information about her past generous or moral behaviors. We find that, no matter how far in the past a person behaved greedily or immorally, information about her negative behaviors is hardly discounted at all. In contrast, information about her past positive behaviors is discounted heavily: recent behaviors are much more influential than behaviors that occurred a long time ago. The lesser discounting of information about immoral and greedy behaviors is not caused by these behaviors being more influential, memorable, extreme, or attention-grabbing; rather, they are perceived as more diagnostic of a person's character than past moral or generous behaviors. The phenomenon of differential discounting of past information has particular relevance in the digital age, where information about people's past is easily retrieved. Our findings have significant implications for theories of impression formation and social information processing.
Global fisheries economics in the face of change in climate
Creators: name: Lam, Vicky Wing Yee
Publisher: name: University of British Columbia
Year: 2013

description: Climate change and changes in biogeochemical conditions of the ocean lead to changes in distribution of marine species and ocean productivity. These changes would affect fisheries, food security, livelihood of fishing communities and eventually the whole economy in different countries. This thesis uses simulation modelling to assess the direct impacts of change in physical and biogeochemical conditions of the ocean on marine fisheries and the socio-economic implications at both global and regional scales. I develop a new global database of fishing cost, and provide an overview of current fishing cost patterns at national, regional, and global scales. The outcomes lay the foundation for the subsequent economic analysis in the thesis, and should also be useful for other future fisheries economic studies. Using these results and other data from the Sea Around Us Project, I estimate the change in landings of over 800 species of fish within the Exclusive Economic Zones (EEZs) under climate change scenarios based on dynamic bioclimate envelope model (DBEM), and an empirical model. About 75% of EEZs are projected to show declines in landings under the Special Report on Emission Scenario (SRES) A2. Most of them are in developing countries, which are socio-economically more vulnerable to climate change. In West Africa, which is one of the most vulnerable regions to climate change, our model projects that there will be a reduction in landings in the 2050s, with some countries experiencing declines of more than 50% under the “business-as-usual” scenario. This substantial decline not only affects the food supply and security in the region, but also has a negative impact on employment opportunities and the downstream economic impact on the whole society. I also analyze how change in climate and ocean acidity under scenarios of anthropogenic CO₂ emission is expected to affect the economics of marine fisheries in the Arctic region. My model only projected a slight decrease in catch potential of marine fish and invertebrates under the impact of ocean acidification in the 2050s. Future studies accounting for the synergistic effects among climate change, ocean acidification and other factors on marine ecosystems are needed.
Entypophana Moser 1913
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Entypophana

description: Entypophana Moser, 1913b
[6 species].
Type species Entypophana apicata Moser, 1913, by subsequent designation of Sehnal (2017).
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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
title: Male-mediated species recognition among African weakly electric fishes
Creators: name: Nagel, Rebecca
name: Kirschbaum, Frank
name: Engelmann, Jacob
name: Hofmann, Volker
name: Pawelzik, Felix
name: Tiedemann, Ralph
Publisher: name: Universität Potsdam
Year: 2019

description: Effective communication among sympatric species is often instrumental for behavioural isolation, where the failure to successfully discriminate between potential mates could lead to less fit hybrid offspring. Discrimination between con- and heterospecifics tends to occur more often in the sex that invests more in offspring production, i.e. females, but males may also mediate reproductive isolation. In this study, we show that among two Campylomormyrus Africanweakly electric fish species, males preferentially associate with conspecific females during choice tests using live fish as stimuli, i.e. when all sensory modalities potentially used for communication were present. We then conducted playback experiments to determine whether the species-specific electric organ discharge (EOD) used for electrocommunication serves as the cue for this conspecific association preference. Interestingly, only C. compressirostris males associated significantly more with the conspecific EOD waveform when playback stimuli were provided, while no such association preference was observed in C. tamandua males. Given our results, the EOD appears to serve, in part, as a male-mediated pre-zygotic isolation mechanism among sympatric species. However, the failure of C. tamandua males to discriminate between con- and heterospecific playback discharges suggests that multiple modalities may be necessary for species recognition in some African weakly electric fish species.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 645
Dynamical fluctuations in a simple housing market model
Creators: name: Lemoy, Rémi
name: Bertin, Eric
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Finance (q-fin.GN)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We consider a simple stochastic model of a urban rental housing market, in which the interaction of tenants and landlords induces rent fluctuations. We simulate the model numerically and measure the equilibrium rent distribution, which is found to be close to a lognormal law. We also study the influence of the density of agents (or equivalently, the vacancy rate) on the rent distribution. A simplified version of the model, amenable to analytical treatment, is studied and leads to a lognormal distribution of rents. The predicted equilibrium value agrees quantitatively with numerical simulations, while a qualitative agreement is obtained for the standard deviation. The connection with non-equilibrium statistical physics models like ratchets is also emphasized.
description: 12 pages, 5 figures, to appear in J. Stat. Mech
Sull’utilizzo di fonti rinnovabili per la produzione di energia e integrazione con impianti industriali
Creators: name: Carati, Marco
name: Pellegrini, Marco
name: Saccani, Cesare
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-IND/17 Impianti industriali meccanici

description: Questa nota vuole mettere in evidenza alcune delle attività che il Dipartimento DIEM dell’Università di Bologna, sezione impianti, in collaborazione con aziende del settore, sta svolgendo nel campo delle energie rinnovabili.
Di rilievo è l’attività di progettazione e realizzazione di un laboratorio Fossil Fuel Free denominato “Hera Lab”, nato dalla collaborazione col gruppo HERA (Holding Energia Risorse Ambiente) per acquisire conoscenze nel campo delle fonti di energia rinnovabili, testare direttamente nuove tecnologie e sviluppare soluzioni innovative.
Saranno inoltre illustrati gli studi condotti sulla generazione ed utilizzo di idrometano (ovvero miscela di metano, idrogeno e vapor d’acqua) prodotto mediante fonte energetica CSP (Concentrating Solar Power) in una centrale termoelettrica, l’integrazione tra impianti CSP e impianti per la desalinizzazione dell’acqua e, infine, lo studio e la sperimentazione di una soluzione innovativa per il filtraggio del particolato presente nei fumi a valle dei processi di combustione o gassificazione.
Analisi tecnico-economica di impianti per la cattura e lo stoccaggio di anidride carbonica con stoccaggio di energia termica
Creators: name: Carati, Marco
name: Pellegrini, Marco
name: Saccani, Cesare
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-IND/17 Impianti industriali meccanici

description: L’articolo riporta i risultati di uno studio per valutare tecnicamente ed economicamente l’integrazione tra un impianto supercritico a carbone, modellato sulla base del caso di studio prodotto dai report dell’IEA (Agenzia Internazionale Energia), con un impianto per lo stoccaggio di energia termica.
Dopo un’analisi approfondita è stato scelto il sistema di stoccaggio ad oli diatermici.
L’abbinamento di un sistema di stoccaggio di energia termica all’impianto CCS (Carbon Capture & Storage) permette di riportare la flessibilità, ossia la velocità di variazione nella produzione di energia elettrica, a livello degli impianti di generazione senza la sezione di cattura dell’anidride carbonica.
Inoltre a seguito del calcolo del VAN (Valore Attuale Netto) seguendo i criteri di valutazione indicati dall’IEA, si evidenzia come per alcuni scenari del prezzo di vendita dell’energia elettrica e del carbone l’investimento risulti conveniente.
Momentum routing invariance in Feynman diagrams and quantum symmetry breakings
Creators: name: Ferreira, L. C.
name: Cherchiglia, A. L.
name: Hiller, Brigitte
name: Sampaio, Marcos
name: Nemes, M. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We illustrate with examples that quantum symmetry breakings in perturbation theory are connected to breakdown of momentum routing invariance (MRI) in the loops of a Feynman diagram. We show that MRI is a necessary and sufficient condition to preserve abelian gauge symmetry at arbitrary loop order. We adopt the implicit regularization framework in which surface terms that are directly connected to momentum routing can be constructed to arbitrary loop order. The interplay between momentum routing invariance, surface terms and anomalies is discussed. We also illustrate that MRI is important to preserve supersymmetry. For theories with poor symmetry content, such as scalar field theories, MRI is shown to be important in the calculation of renormalization group functions.
Influenza delle dimensioni della densità e della concentrazione delle particelle sull'usura erosiva nel trasporto pneumatico
Creators: name: Bianchini, Augusto
name: Bradley, Mike
name: Deng, Tong
name: Macchini, Romeo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-IND/17 Impianti industriali meccanici

description: La concentrazione di particelle è uno dei fattori principali che influenzano la velocità di erosione delle superfici in caso di urto delle particelle, come accade per esempio nelle curve dei trasportatori pneumatici. È noto che una riduzione della velocità di erosione si verifica per alte concentrazioni di particelle, un fenomeno denominato "effetto schermo ". La causa della schermatura si crede risiedere nella maggiore probabilità di collisioni inter-particella quando la concentrazione aumenta. In questo studio sono stati indagati gli effetti della concentrazione sull’erosione di una superficie curva in acciaio utilizzando tre diversi materiali in un impianto di trasporto pneumatico. I materiali sono stati scelti in modo che due avessero la stessa densità, ma granulometria molto diversa, e allo stesso tempo due avessero granulometria molto simile ma la densità diversa. Risultati sperimentali confermano l'effetto schermante al variare della concentrazione di particelle e mostrano che la densità ha un effetto molto più significativo rispetto alla dimensione delle particelle sull’effetto di schermatura.
È stato stabilito un nuovo metodo di correzione per tener conto del degradamento del materiale dovuto a passaggi multipli nella stessa linea di trasporto. Inoltre, è stato formulato un nuovo modello empirico del tasso di erosione specifico basandosi sulla definizione della resistenza all’usura. Con il modello è stato possibile trovare il tasso specifico di erosione quando la concentrazione di particelle tende a zero, e valutare il comportamento dei diversi materiali alla variazione di concentrazione delle particelle.
Entyposis Kolbe 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Entyposis

description: Entyposis Kolbe, 1894
[11 species].
Type species Schizonycha cavicollis Fairmaire, 1887, by subsequent designation of Lacroix&Montreuil(2012).
Note: Sharp (1894) incorrectly spelt Entyposis as “ Eutyposis ”.
Proseconius Kolbe, 1894.
Type species Schizonycha capito Gerstaecker, 1873, by monotypy.
Synonymy by Sehnal (2019).
Note: Sharp (1894) incorrectly spelt Proseconius as “ Prosecnius ”.
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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Income Distribution, Borrowing Constraints and Redistributive Policies
Creators: name: Bellettini, Giorgio
name: Berti Ceroni, Carlotta
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: This paper proposes an explanation for why universal suffrage has not implied larger rich-to-poor transfers of wealth. In the presence of borrowing constraints, if current taxation finances (at least partially) policies that redistribute future income, the poor, who are more likely to be liquidity constrained, may form a coalition with the rich and vote for low redistribution. In this context, the effects of an increase in income inequality on the level of redistribution depend on whether the increase in inequality is concentrated among the poor or the middle class. In the former case, an increase in inequality tends to decrease redistribution, whereas, in the latter case, it tends to increase redistribution. Empirical evidence for a panel of OECD countries provides support to our main thoretical implications.
The Optimal Allocation of Power in Organizations
Creators: name: Carbonara, Emanuela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: Starting from the separation between formal and real authority, the paper considers a hierarchical relation where delegation of control can be used as an incentive mechanism. It shows that delegation is optimal when parties’ interests are neither too divergent nor too close. In that case superiors do not need to monitor too closely, curbing the subordinates’ initiative and subordinates have no incentives to free ride on the superiors’ information. The analysis is then extended to a multi- period setting. If subordinates acquire expertise on the job (learning by doing), effort has the nature of a specific investment whose intrinsic value is higher the longer the subordinate’s working life. Therefore, a policy of gradual delegation is possible, where agents accept weaker in- centives at the beginning of their career, requiring stronger incentives over time as the value of their knowledge diminishes.
Suolo, sistemi locali di produzione ed agricoltura nello sviluppo rurale delle economie post-industriali
Creators: name: Romagnoli, Alessandro
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: The post-industrial development of non-urban territory shows a decline in the agricultural use of the land and a rise of industrial and services activities localization on it. This imply a new methodology to study rural and agricultural development. The aim of the paper is to provide a general framework to deal with these problems. The starting point is the use of soil as an input of production and as a space of the localization strategies of the firm.
Non-Universal Anomalies in Heterotic String Constructions
Creators: name: Lüdeling, Christoph
name: Ruehle, Fabian
name: Wieck, Clemens
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate anomalies on heterotic orbifolds and their blowups. We give a simple example of an orbifold blowup which contains anomalous U(1) symmetries that are canceled by axions which couple non-universally to the different gauge groups, thus clarifying some confusion which recently arose in the literature concerning anomaly universality. We argue that non-universal axionic couplings are the general case, and that the couplings are only universal in the case of orbifolds. We comment on the consequences of this non-universality for discrete R symmetries. We furthermore investigate the origin of discrete (R and non-R) symmetries on smooth Calabi-Yau manifolds.
description: 22 pages, 4 tables, publication version, minor corrections
L’analisi empirica della segmentazione e della flessibilità del lavoro utilizzando le tecniche di job creation e destruction
Creators: name: Guidetti, Giovanni
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: SECS-P/01 Economia politica

description: The aim of this paper is to provide an empirical investigation of labour market segmentation and flexibility. For this purpose, the techniques based on the analysis of job creation and destruction ( see, Davis et al, 1996) have been used. The data analysed stem from a sample of manufacturing firms located in Emilia-Romagna and cover a period of eight years. This dataset allows to analyse the level of employment of both blue and white collars. The analysis shows in details the different dynamics of those two component of manufacturing employment. It is argued that white and blue collars can be considered as two different occupational sub-systems (see, Osterman 1982, 1984) and that internal labour market segmentation gives rise to divergent indicators of numerical flexibility for the two components of employment.
Essential manifolds with extra structures
Creators: name: Kutsak, Sergii
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: We consider classes of algebraic manifolds $\mathcal{A}$, of symplectic manifolds $\mathcal{S}$, of symplectic manifolds with the hard Lefschetz property $\mathcal{HS}$ and the class of cohomologically symplectic manifolds $\mathcal{CS}$. For every class of manifolds $\mathcal{C}$ we denote by $\mathcal{EC}(π,n)$ a subclass of $n$-dimensional essential manifolds with fundamental group $π$. In this paper we prove that for all the above classes with symplectically aspherical form the condition $\mathcal{EC}(π,2n)\ne \emptyset$ implies that $\mathcal{EC}(π,2n-2)\ne\emptyset $ for every $n>2$. Also we prove that all the inclusions $\mathcal{EA}\subset\mathcal{EHS}\subset\mathcal{ES}\subset\mathcal{ECS}$ are proper.
description: 13 pages, no figures, v2, typos corrected
Price dynamics in sequential auctions. New evidence using art auction data
Creators: name: Picci, Lucio
name: Scorcu, Antonello E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: We analyze the price structure of sequential auctions of modern and contemporary art that took place in Italy during the period 1983-96. Contrary to previous empirical studies, we do not find any "afternoon" effect - i.e., a decline of auction prices relative to their estimates. If anything, we find the opposite, or "morning", effect. Our results are robust to different econometric specifications. Taking into consideration the possible dynamic nature of price determination, we propose an interpretation of the empirical results that encompasses previous contributions.
Sobolev regularity for the Monge-Ampere equation in the Wiener space
Creators: name: Bogachev, Vladimir I.
name: Kolesnikov, Alexander V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 49J27, 28C20

description: Given the standard Gaussian measure $γ$ on the countable product of lines $\mathbb{R}^{\infty}$ and a probability measure $g \cdot γ$ absolutely continuous with respect to $γ$, we consider the optimal transportation $T(x) = x + \nabla φ(x)$ of $g \cdot γ$ to $γ$. Assume that the function $|\nabla g|^2/g$ is $γ$-integrable. We prove that the function $φ$ is regular in a certain Sobolev-type sense and satisfies the classical change of variables formula $g = {\det}_2(I + D^2 φ) \exp \bigl(\mathcal{L} φ- 1/2 |\nabla φ|^2 \bigr)$. We also establish sufficient conditions for the existence of third order derivatives of $φ$.
description: 22 pages. Some statements are corrected. More complete proofs are given
Struttura e localizzazione dei gruppi di imprese in Emilia Romagna
Creators: name: Bianchi, Roberto
name: Brioschi, Maria Sole
name: Cainelli, Giulio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: This paper aims at investigating the presence and the main features of business groups in Emilia Romagna. The research is based on a sample comprising about 48 thousand firms and about 540 thousand employees from Emilia Romagna, the latter representing more than 42 per cent of the total regional employment. First, we find that the presence of corporate grouping in Emilia Romagna is comparable to that documented at national level. Moreover, and surprisingly enough, we show that the extension of the group organizational form is significant also in industrial districts, suggesting that ownership linkages among firms do play a role and should not be neglected in the analysis of these production systems. Although the analysis requires some further investigation, these results support the view that also in Emilia Romagna the actual size of firms is larger and the number of owners is lower than official statistics reveal. This result has important economic policy implications, as the industrial policy of Emilia Romagna has traditionally been oriented to supporting small and very small firms.
Euryschiza Brenske 1898
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Euryschiza

description: Euryschiza Brenske, 1898b
[1 species].
Type species Euryschiza salaama Brenske, 1898, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Superfluidity in Two-Dimensional Imbalanced Fermi Gases
Creators: name: Caldas, Heron
name: Mota, A. L.
name: Farias, R. L. S.
name: Souza, L. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the zero temperature ground state of a two-dimensional atomic Fermi gas with chemical potential and population imbalance in the mean-field approximation. All calculations are performed in terms of the two-body binding energy $ε_B$, whose variation allows to investigate the evolution from the BEC to the BCS regimes. By means of analytical and exact expressions we show that, similarly to what is found in three dimensions, at fixed chemical potentials, BCS is the ground state until the critical imbalance $h_c$ after which there is a first-order phase transition to the normal state. We find that $h_c$, the Chandrasekhar-Clogston limit of superfluidity, has the same value as in three dimensional systems. We show that for a fixed ratio $ε_B/ε_F$, where $ε_F$ is the two-dimensional Fermi energy, as the density imbalance $m$ is increased from zero, the ground state evolves from BCS to phase separation to the normal state. At the critical imbalance $m_c$ phase separation is not supported and the normal phase is energetically preferable. The BCS-BEC crossover is discussed in balanced and imbalanced configurations. Possible pictures of what may be found experimentally in these systems are also shown. We also investigate the necessary conditions for the existence of bound states in the balanced and imbalanced normal phase.
description: 11 pages, 3 figures, enlarged version with several references included
title: Operation Alberich
title: Operation Alberich
Creators: name: Showalter, Dennis
Publisher: name: BSB - Bavarian State Library
Year: 2016
Subjects: subject: Weltkrieg [1914-1918]
subject: Frankreich
subject: Militär
subject: World War, 1914-1918--Campaigns--France

description: Operation Alberich involved the systematic destruction of 1,500 square kilometres of French territory by the German army after Ludendorff’s decision to retreat to a newly constructed defensive line in 1917. It is often given as an example of German military extremes during the First World War.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
The CXCL2/IL8/CXCR2 Pathway Is Relevant for Brain Tumor Malignancy and Endothelial Cell Function
Creators: name: Urbantat, Ruth
name: Blank, Anne
name: Kremenetskaia, Irina
name: Vajkoczy, Peter
name: Acker, Güliz
name: Brandenburg, Susan
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: tumor angiogenesis
subject: chemokines
subject: glioblastoma
subject: SB225002
subject: HBMEC
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: We aimed to evaluate the angiogenic capacity of CXCL2 and IL8 affecting human endothelial cells to clarify their potential role in glioblastoma (GBM) angiogenesis. Human GBM samples and controls were stained for proangiogenic factors. Survival curves and molecule correlations were obtained from the TCGA (The Cancer Genome Atlas) database. Moreover, proliferative, migratory and angiogenic activity of peripheral (HUVEC) and brain specific (HBMEC) primary human endothelial cells were investigated including blockage of CXCR2 signaling with SB225502. Gene expression analyses of angiogenic molecules from endothelial cells were performed. Overexpression of VEGF and CXCL2 was observed in GBM patients and associated with a survival disadvantage. Molecules of the VEGF pathway correlated but no relation for CXCR1/2 and CXCL2/IL8 was found. Interestingly, receptors of endothelial cells were not induced by addition of proangiogenic factors in vitro. Proliferation and migration of HUVEC were increased by VEGF, CXCL2 as well as IL8. Their sprouting was enhanced through VEGF and CXCL2, while IL8 showed no effect. In contrast, brain endothelial cells reacted to all proangiogenic molecules. Additionally, treatment with a CXCR2 antagonist led to reduced chemokinesis and sprouting of endothelial cells. We demonstrate the impact of CXCR2 signaling on endothelial cells supporting an impact of this pathway in angiogenesis of glioblastoma.
Targeting the Extracellular Matrix in Abdominal Aortic Aneurysms Using Molecular Imaging Insights
Creators: name: Adams, Lisa
name: Brangsch, Julia
name: Hamm, Bernd
name: Makowski, Marcus R.
name: Keller, Sarah
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: abdominal aortic aneurysm
subject: extracellular matrix
subject: pharmacological treatment
subject: magnetic resonance imaging
subject: molecular imaging
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: This review outlines recent preclinical and clinical advances in molecular imaging of abdominal aortic aneurysms (AAA) with a focus on molecular magnetic resonance imaging (MRI) of the extracellular matrix (ECM). In addition, developments in pharmacologic treatment of AAA targeting the ECM will be discussed and results from animal studies will be contrasted with clinical trials. Abdominal aortic aneurysm (AAA) is an often fatal disease without non-invasive pharmacologic treatment options. The ECM, with collagen type I and elastin as major components, is the key structural component of the aortic wall and is recognized as a target tissue for both initiation and the progression of AAA. Molecular imaging allows in vivo measurement and characterization of biological processes at the cellular and molecular level and sets forth to visualize molecular abnormalities at an early stage of disease, facilitating novel diagnostic and therapeutic pathways. By providing surrogate criteria for the in vivo evaluation of the effects of pharmacological therapies, molecular imaging techniques targeting the ECM can facilitate pharmacological drug development. In addition, molecular targets can also be used in theranostic approaches that have the potential for timely diagnosis and concurrent medical therapy. Recent successes in preclinical studies suggest future opportunities for clinical translation. However, further clinical studies are needed to validate the most promising molecular targets for human application.
Lanczos algorithm with Matrix Product States for dynamical correlation functions
Creators: name: Dargel, P. E.
name: Wöllert, A.
name: Honecker, A.
name: McCulloch, I. P.
name: Schollwöck, U.
name: Pruschke, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The density-matrix renormalization group (DMRG) algorithm can be adapted to the calculation of dynamical correlation functions in various ways which all represent compromises between computational efficiency and physical accuracy. In this paper we reconsider the oldest approach based on a suitable Lanczos-generated approximate basis and implement it using matrix product states (MPS) for the representation of the basis states. The direct use of matrix product states combined with an ex-post reorthogonalization method allows to avoid several shortcomings of the original approach, namely the multi-targeting and the approximate representation of the Hamiltonian inherent in earlier Lanczos-method implementations in the DMRG framework, and to deal with the ghost problem of Lanczos methods, leading to a much better convergence of the spectral weights and poles. We present results for the dynamic spin structure factor of the spin-1/2 antiferromagnetic Heisenberg chain. A comparison to Bethe ansatz results in the thermodynamic limit reveals that the MPS-based Lanczos approach is much more accurate than earlier approaches at minor additional numerical cost.
description: final version 11 pages, 11 figures
title: Caricatures
title: Caricatures
Creators: name: Demm, Eberhard
Publisher: name: BSB - Bavarian State Library
Year: 2016
Subjects: subject: Karikatur
subject: Weltkrieg [1914-1918]
subject: Weltkrieg [1914-1918, Motiv]
subject: World War, 1914-1918--Caricatures and cartoons

description: This article presents cartoonists as patriotic propagandists mobilizing their pens and brushes for the national cause during the war. It analyses their techniques for arousing emotions such as ridicule or hate. Their particular functions, to attack the enemy and to defend their own countries, are demonstrated in cartoons about the leading representatives, the soldiers, and the political and cultural conceptions of each war coalition. It also shows how the artists tried to tone down problems on the home front and blame various scapegoats such as war profiteers, strikers, shirkers, and pacifists. Two magazines are presented which succeeded in publishing anti-war cartoons, and finally, the difficult question of the impact of cartoon propaganda is discussed.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Molecular systematics and population genomics of the tree-pathogenic fungus Grosmannia clavigera
Creators: name: Massoumi Alamouti, Sepideh
Publisher: name: University of British Columbia
Year: 2013

description: Ophiostomatoid fungi increasingly damage forests, but understanding their interactions with vectors and hosts is hampered by uncertainty over the validity of genera, relationships between genera, and species boundaries. To address some of these issues, I first generated a new multigene dataset from 67 taxa that represent the genus Grosmannia and other related genera. The multigene phylogeny resolved the Grosmannia fungi into a clade that was separated from previously intermixed species of the genera Ambrosiella and Raffaelea, and that corresponded to distinct ecological niches and vector associates, i.e. bark versus wood-boring beetles. Second, I generated and used 15 gene genealogies to define species boundaries in G. clavigera. This destructive pine pathogen is vectored by two beetle species: mountain and Jeffrey pine beetles (MPB, JPB). MPB and its fungal associates have expanded into the largest epidemic in western North American history. I identified two phylogenetic species: Gs and Gc. Gc is present in the phylogenetically close Pinus species ponderosa and jeffreyi, which are infested by localized populations of their respective beetles. In contrast, Gs is an exclusive associate of MPB and its primary host P. contorta, although it is found in other pine species in current epidemic regions. These results suggest that host-tree species and beetle population dynamics are important factors in the genetic divergence and diversity of fungal associates in the beetle-tree ecosystems. Finally, we generated new genomic sequences for eleven Gs and Gc strains to further assess evidence for divergence in these fungi as they adapt to different pine species, and to find genes that may be involved in species divergence. Aligning these genome sequences to the reference genome, we identified 103,430 SNPs that supported the Gs and Gc lineages and divided each lineage into two subclades. Genome-wide scans identified truncated genes and potential pseudogenes that differed between Grosmannia lineages, as well as seven genes that show evidence of positive selection. The seven genes are involved in secondary metabolism and in detoxifying host-tree defense chemicals (e.g. polyketide synthases, oxidoreductases), and their variants may reflect adaptation to the specific chemistries of P. contorta, ponderosa, and jeffreyi.
Nominal Rigidities in a Mail Order Company: Estimation of the Probability of Price Adjustment
Creators: name: Bertarelli, Silvia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: Nominal price rigidities are analyzed from two different perspectives. From a qualitative point of view - as Kashyap (1995) - we look for coherent signs which confirm the presence of fixed costs of adjustment, and therefore the validity of state-dependent pricing rules. Our data concern a mail order Italian company and confirm that individual prices do not mimic the aggregate price index, as it was already claimed by Kashyap (1995) and Tsiddon (1993) for US and Israeli data. Second, we estimate by ordered probit models the probability to have nominal price adjustments (increase, rigidity or decrease) as a function of last period real price and rivals’ price level. Price point strategies are also investigated. We observe a common performance for all brands’ prices which supports a (S, s) rule hypothesis.
Cosmological Constraints from Moments of the Thermal Sunyaev-Zel'dovich Effect
Creators: name: Hill, J. Colin
name: Sherwin, Blake D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we explain how moments of the thermal Sunyaev-Zel'dovich (tSZ) effect can constrain both cosmological parameters and the astrophysics of the intracluster medium (ICM). As the tSZ signal is strongly non-Gaussian, higher moments of tSZ maps contain useful information. We first calculate the dependence of the tSZ moments on cosmological parameters, finding that higher moments scale more steeply with sigma_8 and are sourced by more massive galaxy clusters. Taking advantage of the different dependence of the variance and skewness on cosmological and astrophysical parameters, we construct a statistic, ||/^1.4, which cancels much of the dependence on cosmology (i.e., sigma_8) yet remains sensitive to the astrophysics of intracluster gas (in particular, to the gas fraction in low-mass clusters). Constraining the ICM astrophysics using this statistic could break the well-known degeneracy between cosmology and gas physics in tSZ measurements, allowing for tight constraints on cosmological parameters. Although detailed simulations will be needed to fully characterize the accuracy of this technique, we provide a first application to data from the Atacama Cosmology Telescope and the South Pole Telescope. We estimate that a Planck-like full-sky tSZ map could achieve a <1% constraint on sigma_8 and a 1-sigma error on the sum of the neutrino masses that is comparable to the existing lower bound from oscillation measurements.
description: 11 pages, 12 figures, to be submitted to Phys. Rev. D; v2: 14 pages, 16 figures, matches PRD accepted version (changes from v1 include additional calculations with primordial non-Gaussianity and a new appendix discussing the tSZ kurtosis)
Comportamenti d'impresa e informazione del consumatore Un’analisi empirica sui prezzi del pernottamento turistico
Creators: name: Candela, Guido
name: Cellini, Roberto
name: Scorcu, Antonello E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/02 Politica economica

description: The paper analyses the relationship between the average quantity of a good demanded by a consumer in a single act of purchase and the price setting behaviour of firms, in the presence of consumers’ uncertainty about prices. A decrease of the average quantity purchased leads consumers to reduce the collection of information and increases the room for larger mark-up set by firms, with a consequent higher average price and higher variance of prices. An empirical analysis on the data about hotel stays in seaside resorts in Italy during the summer seasons in the period 1988-1997 is consistent with this point.
Glyptoglossa Brenske 1895
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Glyptoglossa

description: Glyptoglossa Brenske, 1895 (not Glyptoglossa Cooper, 1956)
[7 species].
Type species Schizonycha lurida Burmeister, 1855, 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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Partnership among firms: Estimating the probability of contact from the Poisson model using repeated observations
Creators: name: Bernardini Papalia, Rosa
name: Bertarelli, Silvia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: SECS-P/01 Economia politica

description: The aim of this paper is to study the probability to find an opportunity of collaboration among small and medium sized firms by participating in the Europartenariat meeting created to encourage co-operation links. Contacts among firms are relatively few in number and are assumed to be generated by a Poisson process. Empirical results of different Poisson regression models with reference to parameters’ estimates, predicted probabilities, and marginal effects on event probabilities have been obtained. They provide interesting results related to productive, technological, commercial, and financial projects, in terms of the dynamic behaviour of a typical European firm. Finally, normative evaluation of economic policy has been possible.
Effect of pulse-like near-fault ground motions on inelastic response of structures including foundation flexibility
Creators: name: Ramin, Latifi
Publisher: name: University of British Columbia
Year: 2013

description: For the sites in close proximity to a causative fault where formation of near fault long period velocity pulses is conceivable, consideration of flexibility of the foundation system is very important. This is due to the fact that when the flexibility of the base is taken into account the period of the system is longer than the period of the same system assuming a fixed base. Depending on the depth and the stiffness of the underlying soil the period of the system approaches the period of the near fault long period pulses, hence the response of the structure could be much larger. The purpose of this research is to study the nonlinear response of structures to pulse-like near fault ground motions with and without allowing for the foundation system flexibility. To highlight the impact of the near fault ground motions the nonlinear responses of single degree of freedom systems (resembling fixed base structures) to the near fault ground motions are compared to the responses of the same systems to the equivalent far field ground motions. The effects of (translational and rocking) flexibility of the foundation system is also considered using equivalent linear springs and lumped masses added to the base of the single degree of freedom systems. A major parametric study is performed to determine which parameter has the most significant impact on the response of the structure for near fault ground motions when effect of flexibility of the foundation system is explicitly accounted for. An efficient procedure has been developed for predicting the response of a structure with a flexible base to near fault ground motions deduced from the response of an equivalent single degree of freedom system to the equivalent far field ground motions. Validity of the proposed procedure for assessing the effects of near fault ground motions, and the influence of flexibility of the foundation system on the structures’ responses is verified using different analytical models, including a full 3D analysis of a bridge structure; the results proved to be quite satisfactory.
d-wave superconductivity on the honeycomb bilayer
Creators: name: Vucicevic, J.
name: Goerbig, M. O.
name: Milovanovic, M. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We introduce a microscopic model on the honeycomb bilayer, which in the small-momentum limit captures the usual (quadratic dispersion in kinetic term) description of bilayer graphene. In the limit of strong interlayer hopping it reduces to an effective honeycomb monolayer model with also third neighbor hopping. We study interaction effects in this effective model focusing on possible superconducting instabilities. We find d_{x^2-y^2} superconductivity in the strong coupling limit of an effective tJ-model-like description that gradually transforms into d + id time-reversal symmetry breaking superconductivity at weak couplings. In this limit the small momentum order parameter expansion is (k_x + i k_y)^2 [or (k_x - ik_y)^2] in both valleys of the effective low-energy description. The relevance of our model and investigation for the physics of bilayer graphene is also discussed.
description: 10 pages, published version
High performance device technologies for future communications satellites
Creators: name: Greiling, Paul
name: Nguyen, Loi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: Future communications satellites will require an order of magnitude improvement in the cost/performance of microwave/analog/digital device technologies in order to meet the needs of universal telephony access, computer networking, tele-imaging, telecommuting, videoconferencing, and high-speed Internet. Microwave and millimeter wave technologies for ultra-low noise amplifiers, high efficiency power amplifiers and high-speed analog/digital circuits capable of operating at multi-gigabits per second are being developed to meet this demand. An overview of the status and issues related to these development efforts is presented.