cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intelligent weiblichkeit : the correspondence of Charlotte Schiller and Henry Heron
Creators: name: Isakov, Laura
Publisher: name: University of British Columbia
Year: 2016

description: This thesis is dedicated to Charlotte Schiller's (neé von Lengefeld, 1766-1826) early correspondence, exchanged with a certain Henry Heron about whom as to present not much has been known. Preliminary archival research was necessary to establish the material basis of this thesis, i.e. dealing with concepts of scholarly editing, or "Editionswissenschaft" (cf. Appendix A), providing first-time full transcriptions of the manuscripts in the holdings of the Goethe- und Schiller-Archive Weimar (cf. Appendix B), as well as tracing back records to gain intelligence of Henry Heron's identity (cf. Appendix C). In the first part, my theoretical approach to Charlotte Schiller and Henry Heron's correspondence, builds on scholarship on gender issues in epistolary culture as provided by Simon Richter, Linda Grasso, Anita Runge, Susanne Kord et al. In my second part, I propose a first-time analysis of Charlotte Schiller's Wallberg, a novel only recently published based on the Weimar manuscript holdings. My interpretation will be focused on the use of letters and documents as literary devices, as well as the intertextual allusions to her earlier aquaintance with Henry Heron regarding motifs of migration from Europe to America within the context of the War of Independence. By revealing the juxtapositions of real-life events and literary imagination in the genres of correspondence and novel, I hope to to shed new light onto Charlotte Schiller's literary strategies, and the role and status of women writers in Weimar, Germany, during the period from 1780-1810, at large.
Physical Conditions in a Young, Unreddened, Low Metallicity Galaxy at High Redshift
Creators: name: Erb, Dawn K.
name: Pettini, Max
name: Shapley, Alice E.
name: Steidel, Charles C.
name: Law, David R.
name: Reddy, Naveen A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Increasingly large samples of galaxies are now being discovered at redshifts z~5-6 and higher. Many of these objects are inferred to be young, low in mass, and relatively unreddened, but detailed analysis of their high quality spectra will not be possible until the advent of future facilities. In this paper we shed light on the physical conditions in a plausibly similar low mass galaxy by presenting the analysis of the rest-frame optical and UV spectra of Q2343-BX418, an L* galaxy at z=2.3 with a very low mass-to-light ratio and unusual properties: BX418 is young (<100 Myr), low mass (M_star ~ 10^9 Msun), low in metallicity (Z ~ 1/6 Zsun), and unreddened (E(B-V)~0.02, UV continuum slope beta=-2.1). We infer a metallicity 12+log(O/H)=7.9 +/- 0.2 from the rest-frame optical emission lines. We also determine the metallicity via the direct, electron temperature method, using the ratio O III] 1661, 1666/[O III] 5007 to determine the electron temperature and finding 12+ log(O/H)=7.8 +/- 0.1. These measurements place BX418 among the most metal-poor galaxies observed in emission at high redshift. The rest-frame UV spectrum contains strong emission from Lya (with rest-frame equivalent width 54 A), He II 1640 (both stellar and nebular), C III] 1907, 1909 and O III] 1661, 1666. The C IV/C III] ratio indicates that the source of ionization is unlikely to be an AGN. Analysis of the He II, O III] and C III] line strengths indicates a very high ionization parameter log U ~ -1, while Lya and the interstellar absorption lines indicate that outflowing gas is highly ionized over a wide range of velocities. It remains to be determined how many of BX418's unique spectral features are due to its global properties, such as low metallicity and dust extinction, and how many are indicative of a short-lived phase in the early evolution of an otherwise normal star-forming galaxy.
description: Accepted for publication in ApJ. 28 pages, 14 figures
Innovative analytical methods for the study of low and high weight molecules involved in diseases.
Creators: name: LAVARELLO, CHIARA
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: Personalized or precision medicine is an emerging approach to the treatment and prevention of disease, which takes into account the individual variability of genes, environment and lifestyles of each person.
High Resolution Mass Spectrometry (HRMS) coupled with Ultra High Performance Liquid Chromatography (UHPLC) plays a fundamental role in characterizing and quantifying proteins and metabolites involved in the disease.
The proteomic and metabolomic approaches allow the global identification, not guided by a priori hypothesis, of thousands of proteins and hundreds of metabolites present in a biological fluid and the evaluation of how these can vary in the presence of a specific disease compared to a non-pathological condition, allowing to characterize and discriminate between different study groups.
In the first part PhD project has been studied the proteomic profile of autoinflammatory diseases to understand the molecular mechanisms underlying genetic diseases. Here, we analyzed the proteomic signature of unstimulated and stimulated monocytes of patients with FMF, TRAPS and MKD, describing the dysregulated intracellular pathways associated with each condition for the identification of possible biomarkers and possible novel therapeutic targets.
The objective of the second part of the project is to build, optimize and share spectral MSMS with Accurate Mass Retention Time (AMRT) database libraries, using different metabolic standards (MSMLS, IROA Technologies), involved in key biological processes, to develop robust identification and quantitative methods because the compound identification process being often challenging and requiring a high degree of confidence.
Impact of general reionization scenarios on extraction of inflationary parameters
Creators: name: Pandolfi, Stefania
name: Giusarma, Elena
name: Kolb, Edward W.
name: Lattanzi, Massimiliano
name: Melchiorri, Alessandro
name: Mena, Olga
name: Pena, Manuel
name: Cooray, Asantha
name: Serra, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Determination of whether the Harrison--Zel'dovich spectrum for primordial scalar perturbations is consistent with observations is sensitive to assumptions about the reionization scenario. In light of this result, we revisit constraints on inflationary models using more general reionization scenarios. While the bounds on the tensor-to-scalar ratio are largely unmodified, when different reionization schemes are addressed, hybrid models are back into the inflationary game. In the general reionization picture, we reconstruct both the shape and amplitude of the inflaton potential. We find a broader spectrum of potential shapes when relaxing the simple reionization restriction. An upper limit of $10^{16}$ GeV to the amplitude of the potential is found, regardless of the assumptions on the reionization history.
description: 10 Pages, 9 figures
Dynamics of peripheral T populations after chemo- and/or radiotherapy in HNSCC patients
Creators: name: VLAH, SARA
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: Head and neck squamous cell carcinoma (HNSCC) is a relevant medical issue since it is the sixth most common cancer globally and its incidence is increasing. It is is generally associated with a history of alcohol and tobacco consumption or abuse, and remarkable an etiopathogenetic correlation between tumor and Human Papilloma Virus (HPV). Surgery, radiotherapy and chemotherapy in various combinations are used in the treatment of head and neck cancers, depending on the TNM stage. Chemo-radiotherapy mechanisms of action against tumors considers the activation of anti-cancer immune response as a key event, since radiations act as a sort of "in situ vaccination?. Radiotherapy promotes the inflammation and subsequent activation of adoptive immune responses against tumor-associated antigens (TAA) released or expressed by the tumor. The peripheral immune response of 20 patients suffering for HNSCC was monitored using multiparametric flow cytometry in order to define the qualitative and quantitative characteristics of their immunological T cell response (CD4+ and CD8+ T lymphocytes maturation stage; cytokine production; regulatory commitment; expression of markers of exhaustion/IRs), before and after these subjects underwent chemo-radiotherapy treatment. The immunological monitoring data collected suggest an activatory effect on the immune system after therapy possibly due to the huge amount of cell death products acting as danger signals raised by chemotherapy-Rt combination and by the subsequent stimulation of cancer specific immune responses induced by antigen spreading. Peripheral blood samples of patients examined showed that therapy mainly induced a decrease of the CD3+ total T cell; the CD4+ T cells switched from the na�ve to the late maturation stages cell subset expressing the PD-1 molecule, associated with an increase in secretion of Granzyme; on the CD8+ T cell compartment the therapy induced pro-maturation effects pushing them toward acquisition of full effector functions, suggested by the expansion of the CD8+CD28- T cell subset and by the decrease of the early maturation stages associated with the increase of Terminal Effector Memory CD8+ T.
Supplementary Information from Ecological drivers of eggshell wettability in birds
Creators: name: Attard, Marie R. G.
name: Bowen, James
name: Corado, René
name: Hall, Linnea S.
name: Dorey, Robert A.
name: Portugal, Steven J.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Avian eggshell wettability results using phylogenetic comparative analysis.
Properties of Exercise Strategies
Creators: name: Gerdes, Alex
name: Heeren, Bastiaan
name: Jeuring, Johan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computers and Society (cs.CY)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.3.1

description: Mathematical learning environments give domain-specific and immediate feedback to students solving a mathematical exercise. Based on a language for specifying strategies, we have developed a feedback framework that automatically calculates semantically rich feedback. We offer this feedback functionality to mathematical learning environments via a set of web services. Feedback is only effective when it is precise and to the point. The tests we have performed give some confidence about the correctness of our feedback services. To increase confidence in our services, we explicitly specify the properties our feedback services should satisfy, and, if possible, prove them correct. For this, we give a formal description of the concepts used in our feedback framework services. The formalisation allows us to reason about these concepts, and to state a number of desired properties of the concepts. Our feedback services use exercise descriptions for their instances on domains such as logic, algebra, and linear algebra. We formulate requirements these domain descriptions should satisfy for the feedback services to react as expected.
description: In Proceedings IWS 2010, arXiv:1012.5337
Two energy scales in the magnetic resonance spectrum of electron and hole doped pnictide superconductors
Creators: name: Das, Tanmoy
name: Balatsky, A. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We argue that a multiband superconductor with sign-changing gaps may have multiple spin resonances. We calculate the RPA-based spin resonance spectra of a pnictide superconductor by using the five band tight-binding model or angle-resolved photoemission spectroscopy (ARPES) Fermi surface (FS) and experimental values of superconducting (SC) gaps. The resonance spectra split in both energy and momenta due to the effects of multiband and multiple gaps in $s^{\pm}-$pairing; the higher energy peak appears around the commensurate momenta due to scattering between $α-$FS to $γ/δ-$FS pockets. The second resonance is incommensurate coming from $β-$FS to $γ/δ-$FS scatterings and its $q-$vector is doping-dependent and hence on the FS topology. Energies of both resonances $ω^{1,2}_{res}$ are strongly doping dependent and are proportional to the gap amplitudes at the contributing FSs. We also discuss the evolution of the spin excitation spectra with various other possible gap symmetries, which may be relevant when either both the electron pockets or both the hole pockets completely disappear.
description: 4.1 pages, Accepted in Phys. Rev. Lett., Please refer to the publication link for supplementary material
The complexity of the intangible digital economy: an agent-based model
Creators: name: BERTANI, FILIPPO
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: Since the last 30 years, the economy has been undergoing a massive digital transformation. Intangible digital assets, like software solutions, web services, and more recently deep learning algorithms, artificial intelligence and digital platforms, have been increasingly adopted thanks to the diffusion and advancements of information and communication technologies. Various observers argue that we could rapidly approach a technological singularity leading to explosive economic growth. This research work as a whole is aimed at investigating potential consequences on our economy deriving from digital technological progress. In particular, the contribution of the thesis is both empirical, theoretical and related to model design. On the empirical side, I present a cross-country empirical analysis assessing the correlation between the growth rate of both tangible and intangible investments and different measures of productivity growth. The analysis results are used to inform the first of the two frameworks of the agent-based macro-model Eurace that I employ to assess the long-term impact of digital investments on economy. In particular, in the first framework, a total factor augmenting approach has been used in order to model the digital technological progress because of the significant and positive correlation between total factor productivity and ICT capital investments, composed by a combination of both tangible and intangible investments which includes ICT technologies, software and database. In the second framework, I propose a different and innovative approach in which digital technological progress influences the elasticity of substitution between capital and labour. In this way, an increase of the elasticity of substitution can be seen as an increase in the tasks that machines can perform replacing human beings. In order to develop this approach, I substitute the Cobb-Douglas production function used in the first framework with a Leontief technology in which input factors are represented by organizational units. In turn, the contribution of each unit is given by a combination of capital and labour. The second framework results to be more realistic because it allows to distinguish between the various activities performed in the companies and the different education levels characterizing the workforce employed. Computational experiments show the emergence of technological unemployment in the long-run with a high pace of intangible digital investments. However, in the elasticity augmenting framework compensation mechanisms work more effectively leading to lower unemployment levels compared to the total factor augmenting one. Both frameworks are able to capture interesting features and empirical evidences characterizing our economic system.
Competitive and Cooperative Approaches to the Balancing Market in Distribution Grids
Creators: name: FERRO, GIULIO
Publisher: name: Universit� degli studi di Genova
Year: 2020

description: The electrical grid has been changing in the last decade due to the presence, at the distribution level, of renewables, distributed generation, storage systems, microgrids, and electric vehicles. The introduction of new legislation and actors in the smart grid?s system opens new challenges for the activities of companies, and the development of new energy management systems, models, and methods.
 In order to face this revolution, new market structures are being defined as well as new technologies and optimization and control algorithms for the management of distributed resources and the coordination of local users to contribute to active power reserve and ancillary services.
One of the main problems for an electricity market operator that also owns the distribution grid is to avoid congestions and maximize the quality of the service provided.
The thesis concerns the development and application of new methods for the optimization of network systems (with multi-decision makers) with particular attention to the case of power distribution networks

This Ph.D. thesis aims to address the current lack of properly defined market structures for the determination of balancing services in distribution networks. As a first study, to be able to handle the power flow equation in a computationally better way, a new convex relaxation has been proposed. Thereafter, two opposite types of market structure have been developed: competitive and cooperative. The first structure presents a two-tier mechanism where the market operator is in a predominant position compared to other market players. Vice versa in the cooperative mechanism (solved through distributed optimization techniques ) all actors are on the same level and work together for social welfare.
The main methodological novelties of the proposed work are to solve complex problems with formally correct and computationally efficient techniques.
Dimensions of Current Educational Systems: E-Learning within Continuous Teacher Training
Creators: name: Liana, Tausan
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: The current educational systems which are adapted to the specific needs of the school population have been devised according to the ideas and principles of contemporary pedagogy. These are characterized by the following dimensions: reconsideration of the role of the student who becomes the subject of education; using information technology in education (the computer, the Internet, virtual classes) in planning teaching, guiding learning, monitoring the didactic act; learning through problem solving, stimulating critical thinking; preoccupation to form skills, greater interest shown to interactive experiences, reconstructing the school environment in order to favour interaction, cooperation, experience interchanges, opinions, active listening.
Using Social Networking in EFL Classroom in Higher Education - A case study
Creators: name: Hediye Gamze, Turkmen
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: University students in Turkey face a lot of problems while learning a second language. One of the most significant problems is that the students lack motivation and urge to study a foreign language, especially using traditional learning techniques. This study included a group of Turkish university-level pre-intermediate students that have started to utilise a social networking website (Edmodo.com) as a language learning device beside their regular classes.
Improved Holographic QCD
Creators: name: Gürsoy, Umut
name: Kiritsis, Elias
name: Mazzanti, Liuba
name: Michalogiorgakis, Georgios
name: Nitti, Francesco
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a review to holographic models based on Einstein-dilaton gravity with a potential in 5 dimensions. Such theories, for a judicious choice of potential are very close to the physics of large-N YM theory both at zero and finite temperature. The zero temperature glueball spectra as well as their finite temperature thermodynamic functions compare well with lattice data. The model can be used to calculate transport coefficients, like bulk viscosity, the drag force and jet quenching parameters, relevant for the physics of the Quark-Gluon Plasma.
description: LatEX, 65 pages, 28 figures, 9 Tables. Based on lectures given at several Schools. To appear in the proceedinds of the 5th Aegean School (Milos, Greece)
Cornea to the best of our knowledge
Creators: name: BONZANO, CHIARA
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: The cornea has unique features that make it a useful model for regenerative medicine studies. It is an avascular, transparent, densely innervated tissue, and a multitude of pathological changes may impair visual acuity. The first part of this research work aimed to improve knowledge on corneal epithelium's physiology. To study the corneal epithelium, we introduced for the first time the use of a fluorescent labeling to track the migration and proliferation of the epithelial cells. This experimental system paves the way for further research on epithelial cell migration in the normal cornea and a better understanding of corneal epithelium dynamics. The second part of the thesis aimed to understand corneal biomechanics properties better. We evaluated the role of corneal collagen crosslinking, a para surgical technique of corneal tissue strengthening, in treating infectious corneal disease and its correlation with a delayed corneal re-epithelialization. The last part of this translational research focused on a new therapeutical role of autologous serum tears, and the nerve growth factor eye drops in treating ocular surface disorders unresponsive to conventional medical therapy.
Investigation of meiotic defects in male infertility
Creators: name: Ren, He
Publisher: name: University of British Columbia
Year: 2016

description: Formation of the synaptonemal complex (synapsis), and crossing over of DNA (recombination) is important for chromosome segregation during meiosis. However, reduced rates of recombination have been observed in infertile men. Our previous study linked decreased recombination on sex chromosomes to increased XY disomy in sperm. This finding elicited our interest in the relationship between autosomal recombination and sperm disomy. We hypothesize that a lack of recombination on smaller chromosomes (21, X and Y) may most likely lead to aneuploid sperm. Using immunofluorescence, and fluorescent in situ hybridization, we examined synaptic errors, recombination, and sperm aneuploidy in infertile, and fertile men. When all infertile men were pooled, the frequency of recombination on sex chromosomes and bivalent 21 negatively correlated to rates of corresponding sperm disomy. Our unprecedented finding suggest that meiotic defects may indeed be leading to infertility, and increasing sperm aneuploidy. Moreover, we previously showed changes in crossover distribution in some infertile men. In this thesis, we examined whether this population display specific crossover distributions that may cause chromosome missegregation. Using FISH, we analyzed chromosome-specific crossover distributions, discovering that some infertile men had increased crossovers in regions where they are normally inhibited, which may disrupt structural proteins involved in segregation. We were also interested in the mechanisms behind meiotic defects, and hence studied telomere homeostasis in infertile men. We found deficiencies in telomere association with telomerase in this population, suggesting that defective telomere function may promote improper synapsis and recombination. Lastly, we examined the meiotic behaviour and sperm aneuploidy rate in an infertile man with a mosaic 45,X(50%)/46,XY karyotype. We found that only 25% of spermatocytes were 45,X, suggesting that half of these cells were arrested. We also noted unpaired sex chromosomes in 12% of spermatocytes. The X:Y sperm ratio was increased, indicating that some 45,X cells may give rise to X-bearing sperm. Even though the patient had higher rates of sperm aneuploidy, the vast majority were of normal constitution. Thus, stringent checkpoints appear to ensure the production of sperm with correct chromosomal complement, and extraction of normal sperm for ICSI may be possible in cases of sex chromosomal mosaicism.
Current Issues of Motivation, Academic Performance and Internet Use - Implications for an Education of Excellence
Creators: name: Monica, Turturean
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: Today s world is facing many problems caused by the economic crisis leading thus to an education crisis. Witnessing major changes in the curricula, at different ways of assessment, at teaching and learning in transdiciplinary manner which took by surprise the students who, in turn, feel disarmed and unable to cope with these changes that take place in a very fast rate. And internet has a big influence in students learning and their performance. Many universities try to introduce the internet and new technologies to facilitate student learning, to enhance their motivation for study and to improve their academic performance.
Close encounters of a rotating star with planets in parabolic orbits of varying inclination and the formation of Hot Jupiters
Creators: name: Ivanov, P. B.
name: Papaloizou, J. C. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (abbreviated) We extend the theory of close encounters of a planet on a parabolic orbit with a star to include the effects of tides induced on the central rotating star. Orbits with arbitrary inclination to the stellar rotation axis are considered. We obtain results both from an analytic treatment and numerical one that are in satisfactory agreement. These results are applied to the initial phase of the tidal circularisation problem. We find that both tides induced in the star and planet can lead to a significant decrease of the orbital semi-major axis for orbits having periastron distances smaller than 5-6 stellar radii (corresponding to periods $\sim 4-5$ days after the circularisation has been completed) with tides in the star being much stronger for retrograde orbits compared to prograde orbits. We use the simple Skumanich law for the stellar rotation with its rotational period equal to one month at the age of 5Gyr. The strength of tidal interactions is characterised by circularisation time scale, $t_{ev}$ defined as a time scale of evolution of the planet's semi-major axis due to tides considered as a function of orbital period $P_{obs}$ after the process of tidal circularisation has been completed. We find that the ratio of the initial circularisation time scales corresponding to prograde and retrograde orbits is of order 1.5-2 for a planet of one Jupiter mass and $P_{obs}\sim $ four days. It grows with the mass of the planet, being of order five for a five Jupiter mass planet with the same $P_{orb}$. Thus, the effect of stellar rotation may provide a bias in the formation of planetary systems having planets on close orbits around their host stars, as a consequence of planet-planet scattering, favouring systems with retrograde orbits. The results may also be applied to the problem of tidal capture of stars in young stellar clusters.
description: to be published in Celestial Mechanics and Dynamical Astronomy
Four methods for determining the composition of trace radioactive surface contamination of low-radioactivity metal
Creators: name: O'Keeffe, H. M.
name: Burritt, T. H.
name: Cleveland, B. T.
name: Doucas, G.
name: Gagnon, N.
name: Jelley, N. A.
name: Kraus, C.
name: Lawson, I. T.
name: Majerus, S.
name: McGee, S. R.
name: Myers, A. W.
name: Poon, A. W. P.
name: Rielage, K.
name: Robertson, R. G. H.
name: Rosten, R. C.
name: Stonehill, L. C.
name: VanDevender, B. A.
name: Van Wechel, T. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Four methods for determining the composition of low-level uranium- and thorium-chain surface contamination are presented. One method is the observation of Cherenkov light production in water. In two additional methods a position-sensitive proportional counter surrounding the surface is used to make both a measurement of the energy spectrum of alpha particle emissions and also coincidence measurements to derive the thorium-chain content based on the presence of short-lived isotopes in that decay chain. The fourth method is a radiochemical technique in which the surface is eluted with a weak acid, the eluate is concentrated, added to liquid scintillator and assayed by recording beta-alpha coincidences. These methods were used to characterize two `hotspots' on the outer surface of one of the He-3 proportional counters in the Neutral Current Detection array of the Sudbury Neutrino Observatory experiment. The methods have similar sensitivities, of order tens of ng, to both thorium- and uranium-chain contamination.
description: 22 pages, 19 figures
Termination of Rewriting with and Automated Synthesis of Forbidden Patterns
Creators: name: Gramlich, Bernhard
name: Schernhammer, Felix
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: I.1.3

description: We introduce a modified version of the well-known dependency pair framework that is suitable for the termination analysis of rewriting under forbidden pattern restrictions. By attaching contexts to dependency pairs that represent the calling contexts of the corresponding recursive function calls, it is possible to incorporate the forbidden pattern restrictions in the (adapted) notion of dependency pair chains, thus yielding a sound and complete approach to termination analysis. Building upon this contextual dependency pair framework we introduce a dependency pair processor that simplifies problems by analyzing the contextual information of the dependency pairs. Moreover, we show how this processor can be used to synthesize forbidden patterns suitable for a given term rewriting system on-the-fly during the termination analysis.
description: In Proceedings IWS 2010, arXiv:1012.5337
Electrospun Nanofibers as a Green Approach for the Development of Advanced Biomedical, Pharmaceutical, and Filter Materials
Creators: name: DODERO, ANDREA
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: The present Thesis focuses on the fabrication of polysaccharide ? based nanofibrous mats via electrospinning technique primarily for, but not limited to, the development of wound healing patches with enhanced tissue regeneration capabilities. Specifically, this project arose to overcome the lack of methodologies concerning the proficient electrospinning of polysaccharides due to their poor processability, the requirement of hazardous and/or toxic solvents, and nanofiber inadequate stability in aqueous environments. To tackle this task, this Thesis proposes the use of poly(ethylene oxide), a biocompatible and water ? soluble synthetic polymer able to increase the polysaccharide ? based formulation spinnability, along with a simple washing ? physical crosslinking treatment to fabricate pure polysaccharide nanofibers with boosted water resistance and marked biocompatibility.
In the first Chapters, after a general discussion concerning the technological relevance and versatility of electrospinning technique together with its main applications, this Thesis concentrates on briefly presenting the properties of polysaccharide materials and their advantages with respect to synthetic polymers, as well as the experimental methodologies and characterization approaches used to achieve the investigated purpose. Then, either alginate or chitosan polysaccharides are employed for the fabrication of nanofibrous mats, whose physical ? chemical properties, drug delivery capabilities, and biological responses are fully characterized. As a matter of fact, the developed systems effectively display a significant capacity to promote cell adhesion and proliferation along with proper mechanical, water ? related, and drug release features, hence representing promising materials to be used in several biomedical and pharmaceutical products. Finally, the preparation of a multilayer nanofibrous patch comprised of an external hydrophobic stratum and an internal bioactive one is explored and discussed. To this end, combining a polyurethane nanofibrous layer with an alginate nanofibrous layer enriched with ZnO nanoparticles allows the fabrication of potential wound healing patches endowed with superior support and protective performances.
These results are an important first step in making straightforward the electrospinning of polysaccharide materials granting the possibility to easily prepare nanofibrous meshes with potential uses in various application fields, with particular relevance in the biomedical and pharmaceutical industries where the bioactivity of these materials with respect to synthetic polymers plays a topical role.
Measuring the speed of light using beating longitudinal modes in an open-cavity HeNe laser
Creators: name: D'Orazio, Daniel J.
name: Pearson, Mark
name: Schultz, Justin T.
name: Sidor, Daniel
name: Best, Micheal
name: Goodfellow, Kenneth
name: Scholten, Robert E.
name: White, James D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Physics (physics.class-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We describe an undergraduate laboratory that combines an accurate measurement of the speed of light, a fundamental investigation of a basic laser system, and a nontrivial use of statistical analysis. Students grapple with the existence of longitudinal modes in a laser cavity as they change the cavity length of an adjustable-cavity HeNe laser and tune the cavity to produce lasing in the TEM$_{00}$ mode. For appropriate laser cavity lengths, the laser gain curve of a HeNe laser allows simultaneous operation of multiple longitudinal modes. The difference frequency between the modes is measured using a self-heterodyne detection with a diode photodetector and a radio frequency spectrum analyzer. Asymmetric effects due to frequency pushing and frequency pulling, as well as transverse modes, are minimized by simultaneously monitoring and adjusting the mode structure as viewed with a Fabry-Perot interferometer. The frequency spacing of longitudinal modes is proportional to the inverse of the cavity length with a proportionality constant equal to half the speed of light. By changing the length of the cavity, without changing the path length within the HeNe gas, the speed of light in air can be measured to be ($2.9972 \pm0.0002) \times 10^{8}$ m/s, which is to high enough precision to distinguish between the speed of light in air and that in a vacuum.
description: 6 pages; 6 figures; Published in the American Journal of Physics
A Review of Interference Reduction in Wireless Networks Using Graph Coloring Methods
Creators: name: Hassan, Maaly Awad
name: Chickadel, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The interference imposes a significant negative impact on the performance of wireless networks. With the continuous deployment of larger and more sophisticated wireless networks, reducing interference in such networks is quickly being focused upon as a problem in today's world. In this paper we analyze the interference reduction problem from a graph theoretical viewpoint. A graph coloring methods are exploited to model the interference reduction problem. However, additional constraints to graph coloring scenarios that account for various networking conditions result in additional complexity to standard graph coloring. This paper reviews a variety of algorithmic solutions for specific network topologies.
description: 10 pages, 5 figures
Energy dependence of pbar/p ratio in p+p collisions
Creators: name: Singha, Subhash
name: Netrakanti, Pawan Kumar
name: Kumar, Lokesh
name: Mohanty, Bedangadas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have compiled the experimentally measured pbar/p ratio at midrapidity in p+p collisions from \sqrt{s} = 23 to 7000 GeV and compared it to various mechanisms of baryon production as implemented in PYTHIA, PHOJET and HIJING/B-Bbar models. For the models studied with default settings, PHOJET has the best agreement with the measurements, PYTHIA gives a higher value for \sqrt{s} < 200 GeV and the ratios from HIJING/B-Bbar are consistently lower for all the \sqrt{s} studied. Comparison of the data to different mechanisms of baryon production as implemented in PYTHIA shows that through a suitable tuning of the suppression of diquark-antidiquark pair production in the color field relative to quark-antiquark production and allowing the diquarks to split according to the popcorn scheme gives a fairly reasonable description of the measured pbar/p ratio for \sqrt{s} < 200 GeV. Comparison of the beam energy dependence of the pbar/p ratio in p+p and nucleus-nucleus (A+A) collisions at midrapidity shows that the baryon production is significantly more for A+A collisions relative to p+p collisions for \sqrt{s} < 200 GeV. We also carry out a phenomenological fit to the y_beam dependence of the pbar/p ratio.
description: 5 pages and 5 figures. Accepted in Physical Review C
Identifying the context dependencies of plant-herbivore interactions across a species’ range
Creators: name: Loughnan, Deirdre
Publisher: name: University of British Columbia
Year: 2016

description: Spatial variation in abiotic and biotic factors creates local contexts that influence the intensity and outcome of plant-herbivore interactions. Previous studies have tried to represent the complexity of these context dependencies using latitudinal clines, but this approach has proven insufficient for many systems. Despite substantial variation in herbivore damage across populations, the relative contribution of local community factors to explaining this variation is less well known. I investigated plant-herbivore interactions across the entire range of Quercus garryana, specifically testing the relative importance of climate and population traits on herbivore communities, leaf traits, and the extent of damage caused by different insect feeding guilds. I performed similar analyses on trees grown in a common garden, allowing me to detect the relative importance of environmental and genetic contributions to leaf defense traits and susceptibility to herbivory. Although I observed no variation in herbivore diversity among populations in the field, the abundance of herbivores declined with increasing latitude, while also responding to variation in population size, leaf traits, and climate. Leaf traits were also influenced by climate factors, but in addition varied with tree size and within the growing season. Differences in herbivore damage were best explained by long-term trends in spring precipitation, leaf traits, and population size, with no relationship to latitude. The relative importance of each of these factors depended on when the damage occurred as well as the insect feeding guild causing the damage. Conversely, the extent of damage in the common garden was constant across trees of different provenance, providing further support for the importance of climate in driving variation in herbivory. The findings of this study demonstrate the importance of climate, irrespective of latitude, on plant-herbivore interactions and in mediating the effects of other community factors. As such, they highlight the importance of conducting studies across diverse ecosystems and climate gradients. Only by understanding the underlying drivers of selection can we begin to draw generalizations and develop a predictive framework of plant-herbivore interactions to inform conservation and effective habitat management.
Figure S1 from Reassessing the role of climate change in the Tupi expansion (South America, 5000–500 BP)
Creators: name: Gregorio de Souza, Jonas
name: Noelli, Francisco Silva
name: Madella, Marco
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: Tupi archaeological sites with C14 dates classified by age intervals.
ESiWACE HPC Service for Weather and Climate Models Refactoring and Porting
Creators: name: Raffin, Erwan
name: Van Werkhoven, Ben
name: Guibert, David
name: Duras, Julia
Publisher: name: Zenodo
Year: 2022
Subjects: High Performance Computing
Exascale
Weather
Climate
RegCM
OGSTM
MicroHH
BLOM

description: The Centre of Excellence in Simulation of Weather and Climate in Europe (ESiWACE) pushes the global high-resolution demonstrators towards production-ready simulations on European pre-exascale and future exascale systems. ESiWACE2 further focuses on exploring and exploiting suitable innovative technologies such as DSLs, on the development of processing tools for more efficient I/O and visualization and on providing enhanced services, training and benchmarks for the community. During its second phase, a set of open HPC services dedicated to the Earth system modelling community in Europe are proposed. The idea is to create collaborations that provide guidance, engineering and advice to support weather and climate models especially for GPU porting projects. The poster presents the “model portability and refactoring” service results from 2021 project as well as the newly granted project for 2022 on the following applications: RegCM, OGSTM, MicroHH and BLOM.
description: Presented at ISC 2022 Project Posters Session
Signalling from astrocyte processes in CNS
Creators: name: PELASSA, SIMONE
Publisher: name: Universit� degli studi di Genova
Year: 2021

description: The role of astrocytes in the Central Nervous System (CNS) has been increasingly recognized in the last decades. Astrocytes, indeed, not only support neurons but also play a key role in signal transmission in CNS releasing gliotransmitters as glutamate and participating to the tripartite synpases.
Here, astrocytes function in signal transmission was modeled using ex-vivo models purified from adult rat brain, named gliosomes.
Using the perfusion technique, release from gliosomes was tested in three different contexts:
- glutamate release associated to receptor-receptor interactions,
- exosomes release,
- glutamate release evoked by photobiomodulation stimulation.
Dust grain growth in the interstellar medium of 5
Creators: name: Michałowski, Michał J.
name: Murphy, Eric J.
name: Hjorth, Jens
name: Watson, Darach
name: Gall, Christa
name: Dunlop, James S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate whether stellar dust sources i.e. asymptotic giant branch (AGB) stars and supernovae (SNe) can account for dust detected in 55 QSOs, whereas SNe may be able to account for dust in some QSOs. However, they require very high dust yields even for a top-heavy initial mass function. This suggests additional non-stellar dust formation mechanism e.g. significant dust grain growth in the interstellar medium of at least three out of nine z>5 QSOs. SNe (but not AGB stars) may deliver enough heavy elements to fuel this growth.
description: A&A, accepted. 5 pages, 2 figures, 2 tables
Poisson Process Infinite Relational Model : a Bayesian nonparametric model for transactional data
Creators: name: Briercliffe, Creagh
Publisher: name: University of British Columbia
Year: 2016

description: Transactional data consists of instantaneously occurring observations made on ordered pairs of entities. It can be represented as a network---or more specifically, a directed multigraph---with edges possessing unique timestamps. This thesis explores a Bayesian nonparametric model for discovering latent class-structure in transactional data. Moreover, by pooling information within clusters of entities, it can be used to infer the underlying dynamics of the time-series data. Blundell, Beck, and Heller (2012) originally proposed this model, calling it the Poisson Process Infinite Relational Model; however, this thesis derives and elaborates on the necessary procedures to implement a fully Bayesian approximate inference scheme. Additionally, experimental results are used to validate the computational correctness of the inference algorithm. Further experiments on synthetic data evaluate the model's clustering performance and assess predictive ability. Real data from historical records of militarized disputes between nations test the model's capacity to learn varying degrees of structured relationships.
Loops under Strategies ... Continued
Creators: name: Thiemann, René
name: Sternagel, Christian
name: Giesl, Jürgen
name: Schneider-Kamp, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: While there are many approaches for automatically proving termination of term rewrite systems, up to now there exist only few techniques to disprove their termination automatically. Almost all of these techniques try to find loops, where the existence of a loop implies non-termination of the rewrite system. However, most programming languages use specific evaluation strategies, whereas loop detection techniques usually do not take strategies into account. So even if a rewrite system has a loop, it may still be terminating under certain strategies. Therefore, our goal is to develop decision procedures which can determine whether a given loop is also a loop under the respective evaluation strategy. In earlier work, such procedures were presented for the strategies of innermost, outermost, and context-sensitive evaluation. In the current paper, we build upon this work and develop such decision procedures for important strategies like leftmost-innermost, leftmost-outermost, (max-)parallel-innermost, (max-)parallel-outermost, and forbidden patterns (which generalize innermost, outermost, and context-sensitive strategies). In this way, we obtain the first approach to disprove termination under these strategies automatically.
description: In Proceedings IWS 2010, arXiv:1012.5337
Exact Yrast Spectra of Cold Atoms on a Ring
Creators: name: Kaminishi, Eriko
name: Kanamoto, Rina
name: Sato, Jun
name: Deguchi, Tetsuo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a methodology to construct excited states with a fixed angular momentum, namely, "yrast excited states" of finite-size one-dimensional bosonic systems with periodic boundary conditions. The excitation energies such as the first yrast excited energy are calculated through the system-size asymptotic expansion and expressed analytically by dressed energy. Interestingly, they are grouped into sets of almost degenerate energy levels. The low-lying excitation spectrum near the yrast state is consistent with the $ U(1)$ conformal field theories if the total angular momentum is given by an integral multiple of particle number; i.e., if the system is supercurrent.
description: 5 pages, 3 figures