cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Habeas Mentem and Neurotechnology: A Brief Introduction to the Ethical Problem of Neurorights Protection
Creators: name: Bicocchi, Julie
Publisher: name: Organisms
Year: 2022

description: Over the last twenty years neuroscience has evolved much more rapidly than the ability to update national and international human rights law. In this regulatory vacuum new and potentially dangerous market niches have been created for more and less invasive devices dedicated to our mental activities. How, and in which contexts, it is still possible to fill this serious gap is a topic that the scientific community and civil society must discuss as soon as possible. Otherwise, dystopian scenarios might open up, in which algocracy and technocracy could converge into a regime of perpetual overpowering of our humanity.
description: Organisms, Vol 5, No 2 (2022): Special Issue: Where is Science Going? Scenarios and Perspectives of Contemporary Technoscience
On the relativistic Lagrange-Laplace secular dynamics for extrasolar systems
Creators: name: Sansottera, M.
name: Grassi, L.
name: Giorgilli, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the secular dynamics of extrasolar planetary systems by extending the Lagrange-Laplace theory to high order and by including the relativistic effects. We investigate the long-term evolution of the planetary eccentricities via normal form and we find an excellent agreement with direct numerical integrations. Finally we set up a simple analytic criterion that allows to evaluate the impact of the relativistic effects in the long-time evolution.
description: 4 pages, 4 figures, Proceedings IAU Symposium No. S310 (Complex Planetary Systems)
MS Gr. class. c. 5 1020
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 4. Polystratus, De contemptu
Drawing by Carlo Orazi
XVI МЕЖДУНАРОДНАЯ НАУЧНО-ПРАКТИЧЕСКАЯ КОНФЕРЕНЦИЯ «Развитие науки и практики в глобально меняющемся мире в условиях рисков»
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2023

description: XVI МЕЖДУНАРОДНАЯ НАУЧНО-ПРАКТИЧЕСКАЯ КОНФЕРЕНЦИЯ «Развитие науки и практики в глобально меняющемся мире в условиях рисков»
Complexity: the Role of Information in Organizing Chance
Creators: name: Strumia, Alberto
Publisher: name: Organisms
Year: 2022

description: A review on some of the more relevant results arising from the crisis of reductionism in different contexts of sciences, starting from the late XIX century until our days, leading to complexity theory and the problem of foundations is presented. Relation between complexity and mathematical non-linearity is emphasized. A mention of Chaitin’s compressibie/incompressibie strings to be compared to the philosophical notion of universal is suggested. A comparison of today’s notion of information, especially in its algorithmic version, and the Aristotelian-Thomisitc notion of form, is suggested. In particular we show, by the aid of pictures and animations, how chance can generate stable order and organization only if some information drives the dynamics of the process. Starting from random initial conditions, suitable information leads the evolution trajectories of each cell (element) of some system (either simple or complex) towards a precise attractor. Examples of fractals, galaxies and models of a biological organ in a living system, like a human heart, generated by stem cells are proposed. Ancient Aristotelian-Thomistic logic/ontology appears to be more close to contemporary science than in the past centuries; a result which may contribute constructively even to philosophy, beside science.
description: Organisms, Vol 5, No 2 (2022): Special Issue: Where is Science Going? Scenarios and Perspectives of Contemporary Technoscience
New scenarios for classical and quantum mechanical systems with position dependent mass
Creators: name: Morris, J. R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An inhomogeneous Kaluza-Klein compactification to four dimensions, followed by a conformal transformation, results in a system with position dependent mass (PDM). This origin of a PDM is quite different from the condensed matter one. A substantial generalization of a previously studied nonlinear oscillator with variable mass is obtained, wherein the position dependence of the mass of a nonrelativistic particle is due to a dilatonic coupling function emerging from the extra dimension. Previously obtained solutions for such systems can be extended and reinterpreted as nonrelativistic particles interacting with dilaton fields, which, themselves, can have interesting structures. An application is presented for the nonlinear oscillator, where within the new scenario the particle is coupled to a dilatonic string.
description: 11 pages, no figs; To appear in Quantum Stud: Math. Found
Cataloger Research for Name Authority Control
Creators: name: Tuttle, Jonathan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Catalogers
Research
Authority control
Cataloging--Rules

description: In order to establish unique personal name headings, catalogers occasionally undertake their own research to find information such as birth years or pseudonyms that might clarify an author's relationship to his or her works. While much documentation and literature has been given to name headings, little has been said about the research that goes into forming the headings. This study asks: what do name authority research scenarios have in common? The critical incident technique was employed to gather ten specific research stories from ten catalogers. The study identified categories of research problems, sources, and solutions and observed the patterns emerging between them. The categories and their relationships may help in laying the groundwork for a common knowledge of name research among catalogers, making it easier to assign one name to one bibliographic identity.
Evaluation of a Training Method for Library Cataloguing Volunteers
Creators: name: Fenters, Courtney
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015
Subjects: Catalogers--Training of
Documentation--Evaluation
Library volunteers

description: This paper describes a project conducted in conjunction with the library at the LGBT Center of Raleigh. Five volunteers were instructed to create catalog records for the same ten books, following only the instructions in a set of procedures called the cataloguing manual. Their work was then briefly discussed. The effectiveness of the manual was evaluated by comparing the participants' records with librarian-created "perfect" records for the same books. Participants' qualitative feedback was then incorporated into the final draft of the manual.
Adaptive-Robust Control of a Class of Uncertain Nonlinear Systems Utilizing Time-Delayed Input and Position Feedback
Creators: name: Roy, Spandan
name: Kar, Indra Narayan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, the tracking control problem of a class of Euler-Lagrange systems subjected to unknown uncertainties is addressed and an adaptive-robust control strategy, christened as Time-Delayed Adaptive Robust Control (TARC) is presented. The proposed control strategy approximates the unknown dynamics through time-delayed logic, and the switching logic provides robustness against the approximation error. The novel adaptation law for the switching gain, in contrast to the conventional adaptive-robust control methodologies, does not require either nominal modelling or predefined bounds of the uncertainties. Also, the proposed adaptive law circumvents the overestimation-underestimation problem of switching gain. The state derivatives in the proposed control law is estimated from past data of the state to alleviate the measurement error when state derivatives are not available directly. Moreover, a new stability notion for time-delayed control is proposed which in turn provides a selection criterion for controller gain and sampling interval. Experimental result of the proposed methodology using a nonholonomic wheeled mobile robot (WMR) is presented and improved tracking accuracy of the proposed control law is noted compared to time-delayed control and adaptive sliding mode control.
description: 9 pages
MS Gr. class. c. 5 1021
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 5. Polystratus, De contemptu
Drawing by Carlo Orazi
D3.5 – Seeds or plant material of advance breeding material to be used in WP4
Creators: name: Trindade, Luisa
Publisher: name: Zenodo
Year: 2022
Subjects: Biomass
Biobased
BioFuels
Marginal Lands

description: Based on the performance of different crops in previous projects we have selected a set of varieties for testing in WP4 of lignocellulosic crops and oil crops for different locations in Europe: Miscanthus: new experimental miscanthus hybrids developed by Wageningen University (WU) have been made available for the MAGIC consortium. University of Hohenheim (UHOH) have established field trials in 2018 and INRA is planning field trials for 2019/2020 Hemp: varieties of hemp with good fibre quality and high contents of CBD have been made available to the MAGIC consortium by Van Dinter Semo (VDS). UHOH set up field trials with the variety Markant in 2018. This variety was not suited for the condition in South of Italy so University of Catania (UniCat) used a better suited variety from an Italian Breeder Crambe: Crambe seeds of the variety Galactica have been made available to the consortium by Wageningen Research (WR). Field trials have been set up at University of Bologna (UniBo) and CRES. Camelina: Seeds of camelina have been made available to the MAGIC consortium by WR
TimeJump-Kids in Svalbard
Creators: name: Brocksieper, Manuela
Publisher: name: Zenodo
Year: 2023
Subjects: Science for Kids
podcast
childrens book about the arctic
time travelling
Interviews on bord and in Longyearbyen
Explanation Videos for Children
Lectures with Scottish whaling songs

description: Poster on science communication for children based on the Timeless Arctic Expedition 2022, Spitsbergen.
 Multimedia output not only for children.
MS Gr. class. c. 5 1022
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 6. Polystratus, De contemptu
Drawing by Carlo Orazi
Portal resources information system: the design and development of an online database for tracking Web resources
Creators: name: Spinks, Richard
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Online databases
Information systems--Design
Databases
Web databases

description: This paper describes the design and development of a Web-based information system for collecting and organizing information pertaining to Web resources. In particular, the system is intended to support a team of technical writers who are tracking Web resources that are related to the portal software product they document. The system enables the team to identify a resource of interest and evaluate its content, including categorizing the resource, while also denoting various characteristics of the resource, such as its media format or type. For data input, the proposed system presents Web-based forms constructed with PHP that the user can access from any typical Web browser, and the system stores the collected information in a MySQL database, thereby enabling users to easily query the data at any time and even perform additional analysis of the data, if desired. The system also presents various views of the information in the database, according to selectable criteria, and provides for sorting query results and previewing resources.
Room-temperature operation of Si spin MOSFET with high on/off spin signal ratio
Creators: name: Tahara, Takayuki
name: Koike, Hayato
name: Kameno, Makoto
name: Ando, Yuichiro
name: Tanaka, Kazuhito
name: Miwa, Shinji
name: Suzuki, Yoshishige
name: Shiraishi, Masashi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We experimentally demonstrate a Si spin metal-oxide-semiconductor field-effect transistor (MOSFET) that exhibits a high on/off ratio of source-drain current and spin signals at room temperature. The spin channel is non-degenerate n-type Si, and an effective application of gate voltage in the back-gated structure allows the spin MOSFET operation. This achievement can pave the way to practical use of the Si spin MOSFET.
description: 17 pages, 4 figures
Materials
Creators: name: Morey, Candice
name: Mareva, Silvana
name: Lelonkiewicz, Jaroslaw
name: Chevalier, Nicolas
Publisher: name: Open Science Framework
Year: 2022

description: The .zip file contains the E-Prime software we used to collect the data (both the run script and the editable file), along with the sounds and images the script loads.
Upper Limb Structural Anatomic Mechanisms of Protection (SAMPs)
Creators: name: Ricci, Giulia
name: De Vitis, Rocco
name: Marzella, Luciana
name: Gravina, Pasquale
name: De Francesco, Francesco
Publisher: name: Organisms
Year: 2022

description: Introduction Nature has provided living bodies with extraordinarily effective reparative mechanisms. Furthermore, the biological processes involved in anatomical structures are built-up to protect life against external injuries. A series of these protective systems in the upper limb are herein described. Material and Methods From 2009 to 2017, 864 fresh frozen cadaveric upper limbs were dissected from the axilla to the fingers during the Italian Hand Society surgical anatomy dissection course. Results Arrangement of anatomical structures in the upper limb is able to protect major life supporting organs. Conclusions External injuries affecting the upper limb may cause damage to many important structures resulting in severe functional impairments. The layout of the structures and the relationship between them are organized to preserve arteries integrity first, more than muscles and nerves. This means, in our opinion, that these structures are organized to preserve life even if this has functional cost. Note: this is a slightly revised version of: Marzella, L, De Vitis, R, Gravina, P, Ricci G, De Francesco, F, 2021, “Upper Limb Structural Anatomic Mechanisms of Protection (SAMPs)”, Organisms: Journal of Biological Sciences, published online ahead of print December 30 2021. DOI: 10.13133/2532-5876/17506
description: Organisms, Vol 5, No 2 (2022): Special Issue: Where is Science Going? Scenarios and Perspectives of Contemporary Technoscience
Study of Temporal Evolution of Emission Spectrum in a Steeply Rising Submillimeter Burst
Creators: name: Li, J. P.
name: Zhou, A. H.
name: Wang, X. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the paper the spectral temporal evolution of a steeply rising submillimeter (THz) burst occurred on 2003 November 2 was investigated in detail for the first time. Observations show that the flux density of the THz spectrum increased steeply with frequency above 200 GHz. Their average rising rates reached a value of 235 sfu/GHz (corresponding spectral index $α$ of 4.8) during the burst. The flux densities reached about 4,000 and 70,000 sfu at 212 and 405 GHz at maximum phase, respectively. The emissions at 405 GHz maintained continuous high level that they exceed largely the peak values of the microwave (MW) spectra during the main phase. Our studies suggest that only energetic electrons with a low-energy cutoff of $\sim$1 MeV and number density of $\sim$$10^{6}$--$10^{8}$ cm$^{-3}$ can produce such strong and steeply rising THz component via gyrosynchrotron (GS) radiation based on numerical simulations of burst spectra in the nonuniform magnetic field case. The electron number density $N$, derived from our numerical fits to the THz temporal evolution spectra, increased substantially from $8\times10^{6}$ to $4\times10^{8}$ cm$^{-3}$, i.e., $N$ value increased 50 times during the rise phase. During the decay phase it decreased to $7\times10^{7}$ cm$^{-3}$, i.e., decreased about five times from the maximum phase. The total electron number decreased an order of magnitude from the maximum phase to the decay phase. Nevertheless the variation amplitude of $N$ is only about one time in the MW emission source during this burst, and the total electron number did not decrease but increased by about 20$\%$ during the decay phase. Interestingly, we find that the THz source radius decreased by about 24$\%$ while the MW source one, on the contrary, increased by 28$\%$ during the decay phase.
MS Gr. class. c. 5 1023
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 7. Polystratus, De contemptu
Drawing by Carlo Orazi
Where is Science Going? The Main Road Overlaps Disciplines and Crosses Reductionism
Creators: name: Altobelli, Dario
name: Parravicini, Jacopo
name: Schiavone, Nicola
Publisher: name: Organisms
Year: 2022

description: Guest Editors' Preface to the Special Issue: Where is Science Going? Scenarios and Perspectives of Contemporary Technoscience
description: Organisms, Vol 5, No 2 (2022): Special Issue: Where is Science Going? Scenarios and Perspectives of Contemporary Technoscience
Optical Rogue Waves in Vortex Turbulence
Creators: name: Gibson, Christopher J.
name: Yao, Alison M.
name: Oppo, Gian-Luca
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a spatio-temporal mechanism for producing 2D optical rogue waves in the presence of a turbulent state with creation, interaction and annihilation of optical vortices. Spatially periodic structures with bound phase lose stability to phase unbound turbulent states in complex Ginzburg- Landau and Swift-Hohenberg models with external driving. When the pumping is high and the external driving is low, synchronized oscillations are unstable and lead to spatio-temporal turbulence with high excursions in amplitude. Nonlinear amplification leads to rogue waves close to turbulent optical vortices, where the amplitude tends to zero, and to probability distribution functions with long tails typical of extreme optical events.
description: 5 pages, 7 figures
Marketing to an Engineering School: Promotion of Library Resources, Services and the Subject Librarian
Creators: name: Sturgeon, Melanie A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Marketability
Information literacy
Academic libraries--Mergers
Libraries & propaganda
Engineering libraries

description: The communication between the library and the school of engineering needed to be reestablished a few years after the dedicated engineering library was consolidated with the main library at a small private research university. To accomplish this, a marketing plan was developed to promote available library resources and services including the engineering reference librarian to the engineering students and faculty. The plan was developed by following the steps of a business marketing plan that was adapted for non-profit service organizations. These steps included identifying the target user groups, evaluating the status quo with a SWOT analysis and using a Qualtrics web survey to further understand and define the user groups and their needs. The information from the market analysis was then used to create a promotional marketing program aimed to influence engineering students, faculty and staff to increase the use of library services and improve information literacy.
MS Gr. class. c. 5 1024
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 8. Polystratus, De contemptu
Drawing by Carlo Orazi
Cross Calibration of Telescope Optical Throughput Efficiencies using Reconstructed Shower Energies for the Cherenkov Telescope Array
Creators: name: Mitchell, A. M. W.
name: Parsons, R. D.
name: Hofmann, W.
name: Bernloehr, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: For reliable event reconstruction of Imaging Atmospheric Cherenkov Telescopes (IACTs), calibration of the optical throughput efficiency is required. Within current facilities, this is achieved through the use of ring shaped images generated by muons. Here, a complementary approach is explored, achieving cross calibration of elements of IACT arrays through pairwise comparisons between telescopes, focussing on its applicability to the upcoming Cherenkov Telescope Array (CTA). Intercalibration of telescopes of a particular type using eventwise comparisons of shower image amplitudes has previously been demonstrated to recover the relative telescope optical responses. A method utilising the reconstructed energy as an alternative to image amplitude is presented, enabling cross calibration between telescopes of varying types within an IACT array. Monte Carlo studies for two plausible CTA layouts have shown that this calibration procedure recovers the relative telescope response efficiencies at the few percent level.
description: 8 pages, 4 figures, accepted for publication in Astroparticle Physics
Aponogeton Linnaeus 1781
Creators: name: Manawaduge, Chapa G.
name: Yakandawala, Deepthi
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Alismatales
Aponogetonaceae
Aponogeton

description: Aponogeton Linnaeus (1781: 32)
 Type:— Aponogeton natans (Linnaeus 1771: 226) Engler & Krause in Krause & Engler (1906: 11).
The generic characters are same as that of the family.
 All species of Aponogeton (Alismatales: Aponogetonaceae) are obligate aquatic (freshwater) plants, which are distributed from Africa, Madagascar, India and Sri Lanka (Ceylon) through Asia and Malesia to SW., N. and E. Australia, with highest diversity in Africa and Madagascar. The genus has about 58 species. Of the six Sri Lankan species four are endemic whereas the other two occur in India and Pakistan. There are no members of the Aponogetonaceae native to the New World.
 The starchy, tuberous rootstock of most species is said to be edible and has been an important source of food in some areas in the past in times of famine. At present the inflorescences serve as a vegetable in the local markets and the tuberous root stock is extracted mainly for medicinal purposes. Aponogeton rigidifolius, A. crispus and A. jacobsenii have been often cultivated by aquarists in USA and in Europe. Due to this demand, these plants have been collected in large quantities from the island in the past and as a result the populations are much reduced. However, during the present field studies, we noted that the plants were more often extracted for their medicinal value rather than for their ornamental value. This may be due to the strict regulations that have been imposed.
Vernacular name-‘Kekatiya’ in Sinhala
description: Published as part of Manawaduge, Chapa G. & Yakandawala, Deepthi, 2018, Morphometrics and taxonomic update to the Sri Lankan Aponogetonaceae, pp. 201-224 in Phytotaxa 365 (3) on page 210, DOI: 10.11646/phytotaxa.365.3.1, http://zenodo.org/record/13704551
Multi-wavelength Light Curve Model of the One-year Recurrence Period Nova M31N 2008-12a
Creators: name: Kato, Mariko
name: Saio, Hideyuki
name: Hachisu, Izumi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a theoretical light curve model of the recurrent nova M31N 2008-12a, the current record holder for the shortest recurrence period (1 yr). We combined interior structures calculated using a Henyey-type evolution code with optically thick wind solutions of hydrogen-rich envelopes, which give the proper mass-loss rates, photospheric temperatures, and luminosities. The light curve model is calculated for a 1.38 M_sun white dwarf (WD) with an accretion rate of 1.6 \times 10^{-7} M_sun yr^{-1}. This model shows a very high effective temperature (log T_ph (K) \geq 4.97) and a very small wind mass-loss rate (\dot M_wind \leq 9.3 \times 10^{-6} M_sun yr^{-1}) even at the maximum expansion of the photosphere. These properties are consistent with the faint optical peak of M31N 2008-12a because the brightness of the free-free emission is proportional to the square of the mass-loss rate. The model well reproduces the short supersoft X-ray turn-on time of 6 days and turnoff time of 18 days after the outburst. The ejecta mass of our model is calculated to be 6.3 \times 10^{-8} M_sun, corresponding to 37% of the accreted mass. The growth rate of the WD is 0.63 times the mass accretion rate, making it a progenitor for a Type Ia supernova. Our light curve model predicts a bright supersoft X-ray phase one or two days before the optical peak. We encourage detection of this X-ray flash in future outbursts.
description: 4 pages including 3 figures, to appear in ApJ
MS Gr. class. c. 5 1025
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 9. Polystratus, De contemptu
Drawing by Carlo Orazi
Creation and maintenance of taxonomies and ontologies
Creators: name: Painter, Zachary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Classification--Study and teaching
Information retrieval

description: Homo sapiens are a species obsessed with the classification of objects. From the various jars of Mesopotamia, to the Forms of Plato, to the Dewey Decimal System, civilization has made great strides as a species to organize the world. The modern world allows people to organize large amounts of information like never before with unrivaled accuracy. However, people often struggle to create new taxonomies and ontologies to satisfy their need to sort objects, and often find it difficult to merge new or updated information into taxonomies designed for a previous era or set of information. This paper will examine how various people and organizations have dealt with these problems of ontologies and classifications, while providing recommendations for each scenario.
$μ$-Abstract Elementary Classes and other generalizations
Creators: name: Boney, Will
name: Grossberg, Rami
name: Lieberman, Michael
name: Rosicky, Jiri
name: Vasey, Sebastien
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic (math.LO)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 03C48 (Primary), 03C45, 18C35, 03C52, 03C55, 03C75, 03E55 (Secondary)

description: We introduce $μ$-Abstract Elementary Classes ($μ$-AECs) as a broad framework for model theory that includes complete boolean algebras and Dirichlet series, and begin to develop their classification theory. Moreover, we note that $μ$-AECs correspond precisely to accessible categories in which all morphisms are monomorphisms, and begin the process of reconciling these divergent perspectives: not least, the preliminary classification-theoretic results for μ-AECs transfer directly to accessible categories with monomorphisms.
description: 26 pp
On relaxation phenomena in a two-component plasma
Creators: name: Gorev, V. N.
name: Sokolovsky, A. I.
name: Chelbaevsky, Z. Yu.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The relaxation of temperatures and velocities of the components of a quasi-equilibrium two-component homogeneous completely ionized plasma is investigated on the basis of a generalization of the Chapman-Enskog method applied to the Landau kinetic equation. The generalization is based on the functional hypothesis in order to account for the presence of kinetic modes of the system. In the approximation of a small difference of the component temperatures and velocities, it is shown that relaxation really exists (the relaxation rates are positive). The proof is based on the arguments that are valid for an arbitrary two-component system. The equations describing the temperature and velocity kinetic modes of the system are investigated in a perturbation theory in the square root of the small electron-to-ion mass ratio. The equations of each order of this perturbation theory are solved with the help of the Sonine polynomial expansion. Corrections to the known Landau results related to the distribution functions of the plasma and relaxation rates are obtained. The hydrodynamic theory based on these results should take into account a violation of local equilibrium in the presence of relaxation processes.
description: 18 pages
MS Gr. class. c. 5 1026
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 10. Polystratus, De contemptu
Drawing by Carlo Orazi
D4.3 – Report on "Screening-and comparison of industrial crops grown on contaminated land"
Creators: name: Kotoula, Dania
name: Testa, Giorgio
name: Scordia, Danilo
name: Fernando, Ana Luisa
name: Baraniecki, Przemyslaw
name: Cosentino, Salvatore
Publisher: name: Zenodo
Year: 2022
Subjects: Biomass
Biobased
BioFuels
Marginal Lands

description: Contaminated land, that is unsuitable for food production, represents an alternative option for crops producing feedstock for bioproducts and bioenergy, which would otherwise be in competition with food production. It has been estimated that there are more than 10 million major contaminated sites worldwide, while in the European Economic Area (EEA)-39 countries the registered contaminated sites are up to 650000. Even though often perceived solely as a problem, contaminated areas could instead become a real asset that needs to be valued. One of the aims of MAGIC project was to screen the most promising industrial crops for cultivation on contaminated and saline soils. The effects of the heavy metals Cd, Pb, Ni and Zn on fifteen industrial crops were examined, namely on: biomass sorghum, camelina, cardoon, castor bean, crambe, Ethiopian mustard, giant reed, hemp, lupin, miscanthus x giganteus, pennycress, safflower, switchgrass, tall wheatgrass, and wild sugarcane (African fodder cane). The experiments were conducted following the same methodology and protocols by all partners involved.
Compressive channel estimation and tracking for large arrays in mm wave picocells
Creators: name: Marzi, Zhinus
name: Ramasamy, Dinesh
name: Madhow, Upamanyu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We propose and investigate a compressive architecture for estimation and tracking of sparse spatial channels in millimeter (mm) wave picocellular networks. The base stations are equipped with antenna arrays with a large number of elements (which can fit within compact form factors because of the small carrier wavelength) and employ radio frequency (RF) beamforming, so that standard least squares adaptation techniques (which require access to individual antenna elements) are not applicable. We focus on the downlink, and show that "compressive beacons," transmitted using pseudorandom phase settings at the base station array, and compressively processed using pseudorandom phase settings at the mobile array, provide information sufficient for accurate estimation of the two-dimensional (2D) spatial frequencies associated with the directions of departure of the dominant rays from the base station, and the associated complex gains. This compressive approach is compatible with coarse phase-only control, and is based on a near-optimal sequential algorithm for frequency estimation which can exploit the geometric continuity of the channel across successive beaconing intervals to reduce the overhead to less than 1% even for very large (32 x 32) arrays. Compressive beaconing is essentially omnidirectional, and hence does not enjoy the SNR and spatial reuse benefits of beamforming obtained during data transmission. We therefore discuss system level design considerations for ensuring that the beacon SNR is sufficient for accurate channel estimation, and that inter-cell beacon interference is controlled by an appropriate reuse scheme.
Physical Versus Digital Museums: The User Experience
Creators: name: Burns, Brian
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015
Subjects: Museums
Virtual Technology
Virtual museums

description: The purpose of this study is to distinguish the way people interact with artifacts in a physical environment versus a digital environment. As technology advances, we are getting closer and closer to having a more 'realistic' experience within digital museums. A literature review looks at the pros and cons of these advancements, and discusses what they mean for the future of museums. A study is conducted and concludes that while digital museums are a fantastic resource, they do not perfectly capture the experience one has within a physical museum.
Theory of Thermal Conductivity in the Disordered Electron Liquid
Creators: name: Schwiete, G.
name: Finkel'stein, A. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study thermal conductivity in the disordered two-dimensional electron liquid in the presence of long-range Coulomb interactions. We describe a microscopic analysis of the problem using as a starting point the partition function defined on the Keldysh contour. We extend the Renormalization Group (RG) analysis developed for thermal transport in the disordered Fermi liquid, and include scattering processes induced by the long-range Coulomb interaction in the sub-temperature energy range. For the thermal conductivity, unlike for the electric conductivity, these scattering processes yield a logarithmic correction which may compete with the RG-corrections. The interest in this correction arises from the fact that it violates the Wiedemann-Franz law. We checked that the sub-temperature correction to the thermal conductivity is not modified, neither by the inclusion of Fermi liquid interaction amplitudes nor as a result of the RG flow. We thereby expect that the answer obtained for this correction is final. We use the theory to describe thermal transport on the metallic side of the metal-insulator transition in Si MOSFETs.
description: Special JETP issue dedicated to the 85th birthday of Prof. L. V. Keldysh; 8 pages, 1 figure
Subgraph-based filterbanks for graph signals
Creators: name: Tremblay, Nicolas
name: Borgnat, Pierre
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: Social and Information Networks (cs.SI)
subject: Functional Analysis (math.FA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We design a critically-sampled compact-support biorthogonal transform for graph signals, via graph filterbanks. Instead of partitioning the nodes in two sets so as to remove one every two nodes in the filterbank downsampling operations, the design is based on a partition of the graph in connected subgraphs. Coarsening is achieved by defining one "supernode" for each subgraph and the edges for this coarsened graph derives from the connectivity between the subgraphs. Unlike the "one every two nodes" downsampling on bipartite graphs, this coarsening operation does not have an exact formulation in the graph Fourier domain. Instead, we rely on the local Fourier bases of each subgraph to define filtering operations. We apply successfully this method to decompose graph signals, and show promising performance on compression and denoising.
Manuel Vilella Tejedo, in memoriam
Creators: name: Alba, David M.
Publisher: name: Zenodo
Year: 2011
Subjects: Obituary, ACM, Manuel Vilella, Spira

description: This is the obituary of Manuel Vilella Tejedo, former President of Associació Catalana de Malacologia (ACM). Published within the 2011 issue of Spira.
Digital Twin for IoT Environments : a Testing and Simulation Tool
Creators: name: Nguyen, L; Segovia, M; Mallouli, W; Montes De Oca, E; Cavalli, A.
Publisher: name: Zenodo
Year: 2023

description: Digital Twin (DT) is one of the pillars of modern information technologies that plays an important role on industry’s digitalization. A DT is composed of a real physical object, a virtual abstraction of the object and a bidirectional data flow between the physical and virtual components. This paper presents a DT-based tool, called TaS, to easily test and simulate IoT environments. The objective is to improve the testing methodologies in IoT systems to evaluate the possible impact of it on the physical world. We provide the conditions to test, predict errors and stress application depending on hardware, software and real world physical process. The tool is based on the DT concept in order to detect and predict failures in evolving IoT environments. In particular, the way to prepare the DT to support fault injection and cybersecurity threats is analyzed. The TaS tool is tested through an industrial case study, the Intelligent Transport System (ITS) provided by the INDRA company. Results of experiments are presented that show that our DT is closely linked to the real world
Exploring Pseudo-Relevance Feedback for Microblog Search
Creators: name: Jiang, Fan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Information retrieval
Pseudo-Relevance Feedback
Microblog Search

description: This study explored the effectiveness of a classical information retrieval (IR) approach, pseudo-relevance feedback (PRF), on improving the performance of microblog search. Factors including number of PRF iterations, term selection strategy, term weighting scheme and use of user-generated metadata were examined in order to shed light on their influence on the effectiveness of the studied approach in an environment of microblog search. An IR system implementing the studied approach was developed for experiments and experiments were conducted on an English microblog corpus composed of Twitter's microblogs, known as tweets. Search performance was evaluated using precision at thirty (P@30), mean average precision (MAP) and normalized discounted cumulative gain at thirty (NDCG@30).
As a result, it was found that pseudo-relevance feedback can significantly improve performance of microblog search. Meanwhile, it was also revealed that expanding queries with hashtags is detrimental to the search performance. Besides, it was also identified that term weighting can contribute to search performance.
MS Gr. class. c. 5 1027
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 11. Polystratus, De contemptu
Drawing by Carlo Orazi
title: Acroama musicum
title: 6 Sonaten für Violine und Basso continuo (2023)
titleType: Subtitle
Creators: name: Bodinus, Sebastian
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 780 Music

description: Wie viele andere Musiker seiner Zeit verbrachte auch der aus dem Herzogtum Sachsen-Gotha stammende Violinist und Komponist Sebastian Bodinus (um 1700–1759) ein unruhiges Wanderleben. Bereits früh bekleidete er die Position eines "Cammer-Musicus" und Konzertmeisters an den Residenzen Durlach, Stuttgart, Karlsruhe und Darmstadt, musste jedoch auch mehrere Jahre seinen Lebensunterhalt als freischaffender Musiklehrer erwirtschaften. Bodinus starb, geistig verwirrt, 1759 in Pforzheim. Eine der fruchtbarsten Schaffensperioden Bodinus’ dürfte in die Jahre seiner Anstellung am Hofe Herzog Eberhard Ludwigs von Württemberg in Stuttgart fallen, denn in dieser Zeit zwischen 1724 und 1728 wurden eine ganze Reihe kammermusikalischer Kompositionen beim Augsburger Verleger Joseph Friedrich Leopold gedruckt. Zu diesen Musikwerken zählt auch die Sammlung "Acroama musicum" ("Musikalischer Ohrenschmaus") von sechs Sonaten für Violine und Basso continuo, die durch eine äußerst phantasievolle und violintechnisch anspruchsvolle Kompositionsweise besticht. Das in der Fürstlich zu Bentheim-Tecklenburgischen Musikbibliothek Rheda (Dauerleihgabe in der ULB Münster) überlieferte Exemplar dieser Sonatensammlung diente als Editionsvorlage für diese praktische Notenausgabe.
Synchronizing delay for binary uniform morphisms
Creators: name: Klouda, Karel
name: Medková, Kateřina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15

description: Circular D0L-systems are those with finite synchronizing delay. We introduce a tool called graph of overhangs which can be used to find the minimal value of synchronizing delay of a given D0L-system. By studying the graphs of overhangs, a general upper bound on the minimal value of a synchronizing delay of a circular D0L-system with a binary uniform morphism is given.
MS Gr. class. c. 5 1028
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 12. Polystratus, De contemptu
Drawing by Carlo Orazi
Visual Query System to Help Users Refine Queries from High-Dimensional Data: A Case Study
Creators: name: Zhao, Wanchen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018
Subjects: User interfaces
Information visualization
Health Informatics
Query Processing Algorithms
Case Study

description: Temporal queries are normally issued for cohort selection from the high-dimensional dataset in many contexts, such as medical related research areas. The idea was inspired by the difficulties when interacting with the i2b2 system, an NIH-funded National Center for Biomedical Computing based at Partners HealthCare System, which seldom provides informative feedbacks and interactive exploration about the clinical events of each query or the expecting follow-up cohort. Considering the complexity and time-consuming nature of complicated temporal queries, it would be frustrating when iterative query refining is needed. The paper presents a newly designed web-based visual query system to facilitate refining the initial temporal query to select a satisfactory cohort for a given research. A detailed interface design associated with the query time frame and the implementation of the visual query algorithm that enables advanced arbitrary temporal query logic is included. In addition, a case study with 3 participants in medical related research areas was conducted that shows the system was overall useful to help the users to gain an idea about their follow-up queries.
MS Gr. class. c. 5 1029
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 336/1150 col. 13. Polystratus, De contemptu
Drawing by Carlo Orazi
Polaronic approach to strongly correlated electron system with strong electron-phonon interaction
Creators: name: Makarov, I. A.
name: Shneyder, E. I.
name: Kozlov, P. A.
name: Ovchinnikov, S. G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The three band p-d model of strongly correlated electrons interacting with optical phonon via diagonal and off-diagonal electron-phonon interaction is considered within cluster perturbation theory. At first step the exact diagonalization of the Hamiltonian of CuO4 cluster results in the construction of local polaronic eigenstates |p> with hole numbers nh=0,1,2 per unit cell. The inter cluster hoppings and interactions are exactly written in terms of Hubbard operators X(pq)= |p>. The Fermi type single electron quasiparticle dispersion and spectral weight are calculated for the undoped antiferromagnetic parent insulator like La2CuO4. The quasiparticle dispersion of Hubbard polarons is determined by a hybridization of the several Hubbard subbands with local Franck-Condon resonances. For small electron-phonon interaction the conductivity band is stronger renormalized then the valence band. Nevertheless for large electron-phonon interaction both bands are strongly renormalized with quasiparticle localization. Effect of partial compensation of diagonal and off-diagonal electron-phonon interaction at intermediate coupling is found.
description: 16 pages, 11 figures, 2 tables
Social Bot in Social Media: Detections and Impacts of Social Bot on Twitter Users
Creators: name: Tan, Ju Shua
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018
Subjects: Social bots
Social media
Microblogs
Surveys
Artificial intelligence

description: A social bot is a computer algorithm that automatically produces content and interacts with humans on social media, trying to emulate and possibly alter their behavior. Social bots have inhabited social media platforms for the past few years. Although the initial intention of social bot might be benign, existence of social bot can also bring negative implication to society. For example, in the aftermath of Boston marathon bombing, a lot of tweets has been retweeted without people verifying its accuracy. Therefore, social bot might have the tendency to spread fake news and incite chaos in public. For example, after the Parkland, Florida school shooting, Russian propaganda bots are trying to seize on divisive issues online to sow discord in the United States.This study describes a questionnaire survey of Twitter users about their Twitter usage, ways to detect social bots on Twitter, sentiments towards social bots, as well as how the users protect themselves against harmful social bots. The survey also uses an experimental approach where participants upload a screenshot of a social bot. The result of the survey shows that Twitter bots bring more harms than benefits to Twitter users. However, the advancement of social bots has been so great that it has been hard for human to identify real Twitter users from fake Twitter users. That’s why it is very important for the computing community to engage in finding advanced methods to automatically detect social bots, or to discriminate between humans and bots. Until that process can be fully automated, we need to continue educating more Twitter users about ways to protect themselves against harmful social bots.