cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Palynological study of the continental shelf sediments of the Labrador Sea
Creators: name: Williams, V. Eileen
Publisher: name: University of British Columbia
Year: 2010

description: A detailed palynological examination was made of Tertiary pollen and spore assemblages from six exploratory wells located along the continental margins of the Labrador Sea. From north to south, the study wells are Kangamiut 1, Hekja 0-71, Karlsefni A-13, Herjolf M-92, Roberval K-92 and Cartier D-70. Using local extinction events of zonally diagnostic species to define the tops of intervals, eight provisional pollen and spore zones were established. The zones and their relative ages are as follows: Tsuga igniculus (middle to late Miocene); Fagus granulata (early to middle Miocene); Parviprojectus sp. A (early Oligocene); Araliaceoipollenites megaporifer (latest Eocene/earliest Oligocene); Rhoipites latus (middle to late Eocene); Pistillipollenites mcgregorii (early to middle Eocene); Tricolpites sp. A (middle to late Paleocene); and Paraalnipollenites alterniporus (early to middle Paleocene). The middle and upper Oligocene is apparently absent in the study welIs. When used in conjunction with dinoflagellate assemblages, the zonation provides the potential for additional biostratigraphic resolution in the Tertiary marine sediments of the Labrador Sea. It is especially useful in upper Eocene and stratigraphically higher sections in which pollen and spores are the dominant component of the palynoflora: In addition, the basic similarity of pollen and spore assemblages across much of northern and western Canada suggests the zonation may also be successfully applied in those regions. The relative abundance and distribution of four major populations (i.e., Paleozoic, Upper Jurassic/Lower Cretaceous, Upper Cretaceous and Paleogene) of redeposited palynomorphs were determined. The species composition of recycled and in-situ Paleogene palynomorphs supports independent clay mineralogical data that much of the sediment (including a high percentage of the palynomorphs) was delivered to offshore Labrador Sea basins via a "super" river system that drained a large portion of the western interior and Arctic regions of Canada during the Tertiary. The taxonomic composition of the indigenous Paleogene pollen and spore flora supports both paleontological and isotope data that relatively high paleotemperatures prevailed at high northern latitudes during the Paleogene. The climatic optimum in the Labrador Sea region was reached in the early to early-middle Eocene.
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Musikwissenschaft der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
The (2020) reform of initial teacher training in France: between requirements and realities
Creators: name: Lapostolle, Guy
name: Mabilon, Béatrice
Publisher: name: Academia
Year: 2022
Subjects: Teacher training; France; reforms; trainers.

description: Teacher training in France has undergone three reforms in less than twenty years. Each new government that comes to power sets out, in line with its own party manifesto, to renew teacher training which is deemed partly responsible for the failures of the French education system. These reforms are met with a mixed response from teacher trainers. This article provides a case study of how the latest reform launched in 2019 is playing out at the INSPE (Institut national supérieur du professorat et de l’éducation / National Higher Institute for Teaching and Education) of University X. It will attempt to shed light on the way in which local actors, the INSPE management team, and master’s pedagogical teams are implementing this reform by putting together the MEEF (Métiers de l’enseignement, de l’éducation et de la formation / Teaching, Education, and Training Professions) master’s programme proposal. In particular, it will focus on the way in which different categories of trainers, both vocational and academic, adhere to top-down recommendations.
description: Academia, Αρ. 29 (2022)
Essential spherical isometries
Creators: name: Scherer, Marcel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A13 (47B07 47B20)

description: A result due to Williams, Stampfli and Fillmore shows that an essential isometry $T$ on a Hilbert space $\mathcal{H}$ is a compact perturbation of an isometry if and only if ind$(T)\le 0$. A recent result of S. Chavan yields an analogous characterization of essential spherical isometries $T=(T_1,\dots,T_n)\in\mathcal{B}(\mathcal{H})^n$ with dim($\bigcap_{i=1}^n\ker(T_i))\le$ dim$(\bigcap_{i=1}^n\ker(T_i^*))$. In the present note we show that in dimension $n>1$ the result of Chavan holds without any condition on the dimensions of the joint kernels of $T$ and $T^*$.
description: 3 pages
Neutron Stars in a Chiral Model with Finite Temperature
Creators: name: Dexheimer, V.
name: Schramm, S.
name: Stoecker, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutron star matter is investigated in a hadronic chiral model approach using the lowest flavor-SU(3) multiplets for baryons and mesons. The parameters are determined to yield consistent results for saturated nuclear matter as well as for finite nuclei. The influence of baryonic resonances is discussed. The global properties of a neutron star such as its mass and radius are determined. Proto-neutron star properties are studied by taking into account trapped neutrinos, temperature and entropy effects.
description: Proceeding to the conference Nuclear Physics in Astrophysics III Accepted for publication in Journal of Physics G: Nuclear and Particle Physics
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Philosophie der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
Digital accessibility for persons with disabilities: A mixed method study of websites of 15-top ranked universities of India
Creators: name: Kumar, Akhilesh
name: Tiwari, Praveen Kumar
Publisher: name: Academia
Year: 2022
Subjects: RPWD Act, NIRF, Web Accessibility, NEP 2020, Digital Accessibility

description: The present study was carried out using a mixed method sequential exploratory design to know the accessibility features for persons with disabilities available over the homepages of websites of top-15 ranked universities of India. The ranking used for this study was that of the National Institutional Ranking Framework (NIRF) released in 2020. Initially a manual observational analysis has been done for homepages of the websites of 15-top ranked universities of India for availability of fundamental accessibility features. In second phase an evaluation was made with automated web-accessibility tool ‘koa11y’. It was observed that most of the top-ranked universities in India lacked the fundamental accessibility features screen reader access, change in font size, font colour change, text spacing and even most of them do not have an accessibility statement over their websites. The analysis through ‘Koa11y’ resulted in a mean of 50 errors, 162 warnings and 432 notices respectively indicating very poor accessibility features for persons with disabilities available on websites of top-15 ranked universities of India. The website of National Institutional Ranking Framework (NIRF was found having no/ very poor accessibility features. The Rights of Persons with Disabilities Act (RPWD Act) 2016 has a provision of enhancing digital accessibility and National Education Policy 2020 endorses all its provisions indicating a need to implement the Rights of Persons with Disabilities Act (RPWD Act) 2016 effectively to achieve equity and inclusion in higher education as envisioned in National Education Policy 2020.
description: Academia, Αρ. 29 (2022)
Long-term transient regional groundwater flow in a heterogeneous mature basin with large hydraulic conductivity contrasts
Creators: name: England, Lindy Alison
Publisher: name: University of British Columbia
Year: 2010

description: A finite element model is developed to solve the two-dimensional, transient, groundwater flow equation for the purpose of describing the development of regional flow over geologic time, in response to erosional modifications of the land surface, in a mature basin with large hydraulic conductivity contrasts. A simplified model of the Red Earth region, Alberta, Canada, referred to as the 'standard' model, is the working example. There are several numerical problems inherent in transient flow models. Oscillations occur at nodes at early time as they adjust to new, stressful boundary conditions; these oscillations die out at later times. Oscillations also occur at certain nodes, as head values reach steady state, if the length to depth ratios of the elements are too large; a refinement of the mesh reduces these oscillations to insignificant amounts. To simulate a model in which several million years are required to reach steady state, it is necessary to use a continuously varying time step such that the percent change at any node within the flow region does not exceed a specified tolerance level; three percent is used for most cases in this study. The finite element model is verified by comparing solutions to several problems with those of both 1-D and 2-D steady state analytical solutions and 1-D transient analytical solutions. Comparisons are excellent in all cases. A sensitivity analysis is performed on a layered system in which the values of five parameters, hydraulic conductivity, specific storage, anisotropy, basin size, and water table configuration, are slightly perturbed. Results indicate that the model is most sensitive to changes in: a) values of hydraulic conductivity of low-K layers, b) the z-direction component of hydraulic conductivity in anisotropic low-K layers, c) the geometry of the basin by changing the layer thicknesses, and d) values of specific storage in high-K layers. Hypothetical basins with a variety of stratigraphic and structural configurations and a realistic model of the Red Earth basin are simulated. Flow patterns are analyzed and compared in order to develop an understanding of the time-dependent nature of hydraulic head adjustments within a heterogeneous, mature basin. The significance of making potential errors in assuming steady state flow in a mature basin when transient conditions actually exist is discussed. Applications of this type of transient analysis include: a) exploring for hydrocarbons or mineral deposits, b) isolating radioactive wastes, c) determining safe development rates of groundwater resources, and d) dating geological events that result in changes in boundary conditions of regional groundwater flow systems.
Machine Learning Characterization of Cancer Patients-Derived Extracellular Vesicles using Vibrational Spectroscopies
Creators: name: Uthamacumaran, Abicumaran
name: Elouatik, Samir
name: Abdouh, Mohamed
name: Berteau-Rainville, Michael
name: Gao, Zu-hua
name: Arena, Goffredo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The early detection of cancer is a challenging problem in medicine. The blood sera of cancer patients are enriched with heterogeneous secretory lipid bound extracellular vesicles (EVs), which present a complex repertoire of information and biomarkers, representing their cell of origin, that are being currently studied in the field of liquid biopsy and cancer screening. Vibrational spectroscopies provide non-invasive approaches for the assessment of structural and biophysical properties in complex biological samples. In this pilot study, multiple Raman spectroscopy measurements were performed on the EVs extracted from the blood sera of 9 patients consisting of four different cancer subtypes (colorectal cancer, hepatocellular carcinoma, breast cancer and pancreatic cancer) and five healthy patients (controls). FTIR (Fourier Transform Infrared) spectroscopy measurements were performed as a complementary approach to Raman analysis, on two of the four cancer subtypes. The AdaBoost Random Forest Classifier, Decision Trees, and Support Vector Machines (SVM) distinguished the baseline corrected Raman spectra of cancer EVs from those of healthy controls (18 spectra) with a classification accuracy of above 90 percent when reduced to a spectral frequency range of 1800 to 1940 inverse cm and subjected to a 50:50 training: testing split. FTIR classification accuracy on 14 spectra showed an 80 percent classification accuracy. Our findings demonstrate that basic machine learning algorithms are powerful applied intelligence tools to distinguish the complex vibrational spectra of cancer patient EVs from those of healthy patients. These experimental methods hold promise as valid and efficient liquid biopsy for artificial intelligence-assisted early cancer screening.
description: 41 pages
Minimally-modeled search of higher multipole gravitational-wave radiation in compact binary coalescence
Creators: name: Vedovato, G.
name: Milotti, E.
name: Prodi, G. A.
name: Bini, S.
name: Drago, M.
name: Gayathri, V.
name: Halim, O.
name: Lazzaro, C.
name: Lopez, D.
name: Miani, A.
name: O'Brian, B.
name: Salemi, F.
name: Szczepanczyk, M.
name: Tiwari, S.
name: Virtuoso, A.
name: Klimenko, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: As the Advanced LIGO and Advanced Virgo interferometers, soon to be joined by the KAGRA interferometer, increase their sensitivity, they detect an ever-larger number of gravitational waves with a significant presence of higher multipoles in addition to the dominant $(2, 2)$ multipole. These higher multipoles can be detected with different approaches, such as the minimally-modeled burst search methods, and here we discuss one such approach based on the coherent WaveBurst pipeline (cWB). During the inspiral phase the higher multipoles produce chirps whose instantaneous frequency is a multiple of the dominant (2, 2) multipole, and here we describe how cWB can be used to detect these spectral features. The search is performed within suitable regions of the time-frequency representation; their shape is determined by optimizing the Receiver Operating Characteristics. This novel method has already been used in the GW190814 discovery paper (Astrophys. J. Lett. 896 L44) and is very fast and flexible. Here we describe in full detail the procedure used to detect the (3,3) multipole in GW190814 as well as searches for other higher multipoles during the inspiral phase, and apply it to another event that displays higher multipoles, GW190412, replicating the results obtained with different methods. The procedure described here can be used for the fast analysis of higher multipoles and to support the findings obtained with the model-based Bayesian parameter estimates
Displacement-Driven Approach to Nonlocal Elasticity
Creators: name: Patnaik, Sansit
name: Sidhardh, Sai
name: Semperlotti, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Applied Physics (physics.app-ph)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: This study presents a physically consistent displacement-driven reformulation of the concept of action-at-a-distance, which is at the foundation of nonlocal elasticity. In contrast to existing approaches that adopts an integral stress-strain constitutive relation, the displacement-driven approach is predicated on an integral strain-displacement relation. The most remarkable consequence of this reformulation is that the (total) strain energy is guaranteed to be convex and positive-definite without imposing any constraint on the symmetry of the kernels. This feature is critical to enable the application of nonlocal formulations to general continua exhibiting asymmetric interactions; ultimately a manifestation of material heterogeneity. Remarkably, the proposed approach also enables a strong satisfaction of the locality recovery condition and of the laws of thermodynamics, which are not foregone conclusions in most classical nonlocal elasticity theories. Additionally, the formulation is frame-invariant and the nonlocal operator remains physically consistent at boundaries. The study is complemented by a detailed analysis of the dynamic response of the nonlocal continuum and of its intrinsic dispersion leading to the consideration that the choice of nonlocal kernels should depend on the specific material. Examples of exponential or power-law kernels are presented in order to demonstrate the applicability of the method to different classes of nonlocal media. The ability to admit generalized kernels reinforces the generalized nature of the displacement-driven approach over existing integral methodologies, which typically lead to simplified differential models based on exponential kernels. The theoretical formulation is also leveraged to simulate the static response of nonlocal beams and plates illustrating the intrinsic consistency of the approach, which is free from unwanted boundary effects.
description: 7 figures, 20 pages of main text
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Romanistik/Französisch der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
Impact de l’enseignement universitaire sur la créativité des étudiants des Universités de la ville de Kinshasa
Creators: name: Mwenzi, Jonathan Enguta
name: De Ketele, Jean Marie
name: Khonde, Léon Mbadu
name: Mandudi, Justin Mbwaka
Publisher: name: Academia
Year: 2022
Subjects: Impact, university teaching, creativity, students, city of Kinshasa.

description: La présente étude s’est proposée d’évaluer l’efficacité interne de la formation universitaire congolaise relative à son objectif de promouvoir la créativité. Pour ce faire, deux groupes ont été identifiés (groupe expérimental et groupe contrôle). Le groupe expérimental était constitué de 810 finalistes des Universités de Kinshasa, Protestante au Congo et Libre de Kinshasa. Le groupe contrôle était constitué de 550 élèves finalistes du Lycée Boende, du Complexe Scolaire Cardinal Malula et du Groupe Scolaire du Mont-Amba. Les résultats obtenus, à partir de l’administration du test d’énigmes à ces deux groupes, ont démontré une supériorité numérique des notes moyennes du groupe contrôle à toutes les dimensions créatives comparativement au groupe expérimental. Seule la différence au niveau de la flexibilité s’est révélée significative statistiquement. En plus, les moyennes observées du groupe expérimental aux différentes dimensions créatives se sont révélées inférieures aux moyennes théoriques. Ces résultats attestent une faible efficacité interne de la formation universitaire relative au développement de la créativité. This study set out to assess the internal effectiveness of congolese university training in relation to its objective of promoting creativity. To do this, two groups were identified (experimental group and control group). The experimental group consisted of 810 finalists from the University of Kinshasa, Protestant University in Congo and Free University of Kinshasa. The control group consisted of 550 finalists students from the schools Boende, Cardinal Malula and Mont-Amba The results obtained, based on the administration of the test énigmes to these two groups, showed a numerical superiority of the mean scores of the control group on all creative dimensions compared to the experimental group. Only the difference in flexibility was found to be statistically significant. In addition, the observed experimental group averages for the various creative dimensions were lower than the theoretical averages. These results attest to the low internal effectiveness of university training in the development of creativity.
description: Academia, Αρ. 29 (2022)
title: Don't spill the beans! - Neocapsule and abscess formation from dropped gallstones 10 years post laparoscopic cholecystectomy
Creators: name: Maiguma-Wilson, Sophia
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: CT
subject: MR
subject: Calcifications / Calculi
subject: Clinical Cases

description: Clinical History: An 80-year-old man presented with a 3-month history of a large, irregular, painless lump on his right loin. He denied fevers, night sweats or unintentional weight loss, and blood tests were normal. His past medical history was hypertension and a laparoscopic cholecystectomy ten years prior for chronic cholecystitis.

description: 80 years, male
WISDOM TEETH IN HUMANS
Creators: name: Djuraeva, Barno
name: Malikova, Zebiniso
name: To'ychiyeva, Madina
Publisher: name: Zenodo
Year: 2023

description: This academic article offers a thorough exploration of wisdom teeth in humans, addressing their evolutionary significance, anatomical variations, and clinical implications. The interdisciplinary approach encompasses evolutionary biology, dental anatomy, and clinical dentistry. The article examines the evolutionary roots of wisdom teeth, their diverse anatomical characteristics, and the clinical challenges associated with their development, eruption, and potential complications. By providing insights into the historical context, anatomical intricacies, and contemporary clinical considerations, this article serves as a comprehensive resource for researchers, clinicians, and scholars interested in understanding the enigma of wisdom teeth.
On the signatures of non-topological patches on the surface of topological insulators
Creators: name: Barik, Tamoghna
name: Sau, Jay D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The non-trivial topology in the layered $\text{FeTe}_{0.55}\text{Se}_{0.45}$ (FTS) superconductor has been suggested by both theory and experiment to be strongly dependent on the Te concentration. Motivated by this together with the Te fluctuations expected from alloy disorder, we develop a simple layered model for a strong topological insulator that allows us to describe a scenario where topologically trivial domains permeate the sample. We refer to such a phase as topological domain disordered and study the local density (LDOS) of the topological surface states that can be measured using scanning tunneling spectroscopy (STS) in this phase. We find that topologically trivial domains on the surface, where one would expect the topological surface state to be absent, appear as regions of suppressed LDOS surrounded by domain walls with enhanced LDOS. Furthermore, we show that studying the energy dependence of the STS should allow us to distinguish the topologically trivial parts of the surface from other forms of disorder. Finally, we discuss implications of such local disappearance of the topological surface states for the observation of Majorana modes in vortices.
title: The majestic glory of fjords: geomorphometry and sedimentology of selected fjords on Cumberland Peninsula and the northeast coast of Baffin Island
Creators: name: Carter, Johnathan
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: This thesis presents a morphometric database of 13 parameters across 29 Baffin Island fjords, and the postglacial sedimentology and chronology of three fjords on Cumberland Peninsula. For the morphometric analysis, the fjords were partitioned into two regional groups (northeast coast and Cumberland Peninsula), and a one-way ANOVA test was conducted for each parameter. Fjords were found to be significantly larger along the northeast coast of Baffin Island than on Cumberland Peninsula, attributable to the Laurentide Ice Sheet supporting larger outlet glaciers than those emanating from the Penny Ice Cap and local alpine glaciation on the peninsula. Sub-bottom acoustic profiles of three Cumberland Peninsula fjords (Boas Fiord, Durban Harbour, and Akpait Fiord) were observed to feature the archetypal postglacial stratigraphy for Canadian east-coast fjords (ice-contact overlain by glaciomarine and marine units), in addition to local facies associated with specific fjord features (deltas, sills, and spillover deposits). Sediment cores from these three fjords contained a total of six lithofacies, which were associated with acoustic facies and sediment sources, and provided new calibrated radiocarbon dates (ranging from 0.9 to 9.6 cal ka BP). One of these new radiocarbon dates from Durban Harbour, when combined with Cowan’s (2015) earlier interpretation, associates the postglacial sea-level lowstand with the Preboreal-Cockburn transition (9.5 cal ka BP). Moreover, the sedimentology of these Cumberland Peninsula fjords was found to be comparable to fjords on the northeast coast of Baffin Island in terms of sedimentary sequence and sedimentation rates, but had overall thinner deposits.
title: Механизмы учeта экономического эффекта типизации проектных решений объектов нефтегазового назначения
title: Mechanisms for Accounting the Economic Effect of Typification of Design Solutions for Oil and Gas Facilities
Creators: name: Кравченко, Александр Николаевич
Publisher: name: Издательский центр СурГУ
Year: 2021

description: Настоящая статья продолжает серию публикаций, посвященных проблематике оценки эффективности применения типовых решений в нефтегазовом секторе.
Российские нефтегазовые компании применяют при выпуске проектно-сметной документации типовые решения, которые в итоге должны привести к сокращению капитальных вложений, ресурсных и операционных затрат при проектировании и строительстве объектов. На государственном уровне в РФ поддерживается тренд типизации и унификации. Но в настоящее время отсутствует единый подход к оценке эффективности типовых решений. Авторами проведен анализ открытых источников, определены механизмы учета экономического эффекта типизации проектных решений, предложено видение оптимального подхода к оценке экономического эффекта типизации.
Ключевые слова: проектирование, оптимизация, типизация, унификация, стандартизация, типовое проектирование, эффект, экономическая эффективность.
description: The article continues a series of publications devoted to the assessment of the efficiency of standard solutions applied in the oil and gas sector.
The Russian oil and gas companies apply standard solutions in issuing the design and estimate documentation. These standard solutions should reduce capital investments, resource and operating expenditures in designing and constructing the facilities. In the Russian Federation the tendency of typification and unification is supported at the state level. However, at the present there is no unified approach to assess the efficiency of standard solutions. The authors analyzed the open resources, determined the mechanisms for accounting of economic effect of typification of design solutions, proposed the optimal approach to assess the economic effect of typification.
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Romanistik/Spanisch der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Soziologie: Gesellschaftliche Transformationen und Kulturtechniken der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
University, society and economy in John’s Dewey’s thinking
Creators: name: Galanis, Ioannis
name: Kiprianos, Pantelis
Publisher: name: Academia
Year: 2022
Subjects: university, society, market, democratic reformation

description: John Dewey (1859 - 1952) is one of the most important philosophers and educators with immense contribution to science. With his democratic approach to society and education, Dewey deconstructed authoritarian schemes and traditional methods of teaching and teaching projects. On the other hand, the liberal approach based on the general theory of Adam Smith believes that the market’s invisible power regulates everything. Education cannot be excluded from this general rule. The solitary function that education must have, according to a category of economists, is to prepare the student throughout his/her educational course as best as possible in the job market. In essence, education desires a close connection between University and the Market so the latter’s goals can be achieved. Dewey’s opposite opinion is analysed in our current intervention. He was considering without grounds that University would be in the market’s service. He was defending University’s independence from all the forces that could use it for their benefit. In our proposal, we present Dewey’s approach in correspondence with the economists’ thinking which supports the downgrade of the University to the Market’s needs.
description: Academia, Αρ. 29 (2022)
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Kultur und Gesellschaft für das Fach Theologien im Dialog der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
The theoretical basis for the modelling of chemical reactions in rock-water systems with specific reference to the heat flow, fluid flow and solute transport laws
Creators: name: Perkins, Ernest Henry
Publisher: name: University of British Columbia
Year: 2010

description: In order to understand the processes involved in water and steam floods during secondary and enhanced oil recover, waste disposal, in-situ mining and leaching, or many different types of geological phenomenona, the chemical interactions between the fluid and the surrounding minerals must be known as a function of pressure, temperature and composition. These systems are generally open systems, thus the changes in pressure, temperature and bulk composition are coupled to the chemical reactions occurring throughout the entire system and cannot be independently specified. Based on the equations of mass action and mass balance, further equations have been derived which allow chemical reactions between a fluid and solid phases to be evaluated. The equations are based on the derivatives of the mass action and mass balance equations with respect to time, and are used in a series expansion to predict the composition of the fluid and the solid phases at future times. The equations are coupled to those constraining pressure, temperature and mass flux-which have been modified to allow this coupling. Because of various limitations on many of the equations used, only a single fluid in porous media can be modelled. A computer program has been written to test the equations and concepts developed in this thesis. The results allow the following generalization for natural flow systems with decreasing pressure and temperature along the flow path to be made. Excluding systems with sufficient mechanical energy to create new flow paths and excluding all phases which exhibit decreasing solubility with increasing temperature or with decreasing pressure, every natural flow system which attempts to maintain equilibrium between the fluid and solid phases in contact with the fluid will ultimately seal itself.
title: Satzung zur Änderung der Prüfungsordnung für den binationalen Bachelor-/Licence-Studiengang Europäische Studien (Schwerpunkt Deutschland, Frankreich)/ Édudes Européennes (Mention France-Allemagne) der Fakultät für Kulturwissenschaften an der Universität Paderborn und an der Université du Maine (Le Mans)
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
'Phase Transition' in the 'Thorium-Isomer Story'
Creators: name: Thirolf, P. G.
name: Seiferle, B.
name: Wense, L. v. d.
name: Amersdorffer, I.
name: Moritz, D.
name: Weitenberg, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Given the drastic progress achieved during recent years in our knowledge on the decay and nuclear properties of the thorium isomer 229mTh, the focus of research on this potential nuclear clock transition will turn in the near future from the nuclear physics driven `search and characterization phase' towards a laser physics driven `consolidation and realization phase'. This prepares the path towards the ultimate goal of the realization of a nuclear frequency standard, the `Nuclear Clock'. This article briefly summarizes our present knowledge, focusing on recent achievements, and points to the next steps envisaged on the way towards the Nuclear Clock.
description: 10 pages, 6 figures
title: Satzung zur Änderung der Prüfungsordnung für den Bachelorstudiengang Linguistik der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
title: Satzung zur Änderung der Prüfungsordnung für den Masterstudiengang Linguistik: Sprachdynamik der Fakultät für Kulturwissenschaften an der Universität Paderborn
title: vom 11. Juni 2019
titleType: Subtitle
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2019

description: Amtliche Mitteilungen / Universität Paderborn
Exploiting the Electrothermal Timescale in PrMnO3 RRAM for a compact, clock-less neuron exhibiting biological spiking patterns
Creators: name: Phadke, Omkar
name: Sakhuja, Jayatika
name: Saraswat, Vivek
name: Ganguly, Udayan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Spiking Neural Networks (SNNs) are gaining widespread momentum in the field of neuromorphic computing. These network systems integrated with neurons and synapses provide computational efficiency by mimicking the human brain. It is desired to incorporate the biological neuronal dynamics, including complex spiking patterns which represent diverse brain activities within the neural networks. Earlier hardware realization of neurons was (1) area intensive because of large capacitors in the circuit design, (2) neuronal spiking patterns were demonstrated with clocked neurons at the device level. To achieve more realistic biological neuron spiking behavior, emerging memristive devices are considered promising alternatives. In this paper, we propose, PrMnO3(PMO) -RRAM device-based neuron. The voltage-controlled electrothermal timescales of the compact PMO RRAM device replace the electrical timescales of charging a large capacitor. The electrothermal timescale is used to implement an integration block with multiple voltage-controlled timescales coupled with a refractory block to generate biological neuronal dynamics. Here, first, a Verilog-A implementation of the thermal device model is demonstrated, which captures the current-temperature dynamics of the PMO device. Second, a driving circuitry is designed to mimic different spiking patterns of cortical neurons, including Intrinsic bursting (IB) and Chattering (CH). Third, a neuron circuit model is simulated, which includes the PMO RRAM device model and the driving circuitry to demonstrate the asynchronous neuron behavior. Finally, a hardware-software hybrid analysis is done in which the PMO RRAM device is experimentally characterized to mimic neuron spiking dynamics. The work presents a realizable and more biologically comparable hardware-efficient solution for large-scale SNNs.
Patent PA153178P A process for extracting mucilage from Opuntia ficus-indica, Aloe barbadensis and Agave americana
Creators: name: Alba, Du Toit
name: Maryna, De Wit,
Publisher: name: figshare
Year: 2021
Subjects: subject: Uncategorized
subject: 90899 Food Sciences not elsewhere classified
subject: FOS: Other engineering and technologies

description: This invention relates to a process for extracting mucilage from succulent plants. In particular, this invention relates to a process for extracting mucilage from Opuntia ficus-indica (cactus pear), Aloe barbadensis (aloe vera) and Agave Americana (century plant). The invention will now be described in more detail with reference to the following examples.ding to the present invention, there is provided a process for extracting mucilage from succulent plants, in particular, the cladodes of the Opuntia ficus-indica or the leaves of the Aloe barbadensis or Agave Americana the process comprising the steps of: a) providing a source of cladodes or leaves;b) cooking the cladodes or leaves using microwave energy; andc) centrifuging the mucilage pulp to separate it from the solids and obtain the mucilage itself.The function of mucilage in food products is described in the following products:1. Emulsifying properties in mayonnaise2. Fat-mimicing properties in meat emulsions3. Fat-replacing in baked products4. Gelling agents in Turkish delight candy5. Foaming agent in marchmallow candy
 The functionn
Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5$d$ Transition Metal Oxides Sr$_{n+1}$Ir$_{n}$O$_{3n+1}$ ($n$=1, 2, and $\infty$)
Creators: name: Moon, S. J.
name: Jin, H.
name: Kim, K. W.
name: Choi, W. S.
name: Lee, Y. S.
name: Yu, J.
name: Cao, G.
name: Sumi, A.
name: Funakubo, H.
name: Bernhard, C.
name: Noh, T. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigated the electronic structures of the 5$d$ Ruddlesden-Popper series Sr$_{n+1}$Ir$_{n}$O$_{3n+1}$ ($n$=1, 2, and $\infty$) using optical spectroscopy and first-principles calculations. As 5$d$ orbitals are spatially more extended than 3$d$ or 4$d$ orbitals, it has been widely accepted that correlation effects are minimal in 5$d$ compounds. However, we observed a bandwidth-controlled transition from a Mott insulator to a metal as we increased $n$. In addition, the artificially synthesized perovskite SrIrO$_{3}$ showed a very large mass enhancement of about 6, indicating that it was in a correlated metallic state.
Nonparametric estimation in a nonlinear cointegration type model
Creators: name: Karlsen, Hans Arnfinn
name: Myklebust, Terje
name: Tjøstheim, Dag
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M10, 62G08, 91B84 (Primary) 60J05 (Secondary)

description: We derive an asymptotic theory of nonparametric estimation for a time series regression model $Z_t=f(X_t)+W_t$, where \ensuremath\{X_t\} and \ensuremath\{Z_t\} are observed nonstationary processes and $\{W_t\}$ is an unobserved stationary process. In econometrics, this can be interpreted as a nonlinear cointegration type relationship, but we believe that our results are of wider interest. The class of nonstationary processes allowed for $\{X_t\}$ is a subclass of the class of null recurrent Markov chains. This subclass contains random walk, unit root processes and nonlinear processes. We derive the asymptotics of a nonparametric estimate of f(x) under the assumption that $\{W_t\}$ is a Markov chain satisfying some mixing conditions. The finite-sample properties of $\hat{f}(x)$ are studied by means of simulation experiments.
description: Published at http://dx.doi.org/10.1214/009053606000001181 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Zero-dimensional and pseudo-one-dimensional models of atmospheric-pressure plasma jet in binary and ternary mixtures of oxygen and nitrogen with helium background
Creators: name: He, Youfan
name: Preissing, Patrick
name: Steuer, David
name: Klich, Maximilian
name: der Gathen, Volker Schulz-von
name: Böke, Marc
name: Korolov, Ihor
name: Schulze, Julian
name: Guerra, Vasco
name: Brinkmann, Ralf Peter
name: Kemaneci, Efe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A zero-dimensional (volume-averaged) and a pseudo-one-dimensional (plug-flow) model are developed to investigate atmospheric-pressure plasma jet devices operated with He, He/O$_2$, He/N$_2$ and He/N$_2$/O$_2$ mixtures. The models are coupled with the Boltzmann equation under the two-term approximation to self-consistently calculate the electron energy distribution function (EEDF). The simulation results are verified against spatially resolved model calculations and validated against a wide variety of measurement data. The nitric oxide (NO) concentration is thoroughly characterized for a variation of the gas mixture ratio, helium flow rate and absorbed power. The concentration measurements at low power are better captured by the simulation with a larger hypothetical "effective" rate coefficient value for the reactive quenching N$_2$(A$^3Σ$,B$^3Π$) + O($^3$P) $\to$ NO + N($^2$D). This suggests that the NO production at low power is also covered by the species N$_2$(A$^3Σ$,B$^3Π$;v>0) and multiple higher N$_2$ electronically excited states instead of only N$_2$(A$^3Σ$,B$^3Π$;v=0) in this quenching. Furthermore, the O($^3$P) density measurements under the same operation conditions are also better predicted by the simulations with a consideration of the aforementioned hypothetical rate coefficient value. It is found that the contribution of the vibrationally excited nitrogen molecules N$_2$(v$\geqslant$13) to the net NO formation rate gains more significance at higher power. The vibrational distribution functions (VDFs) of O$_2$(v<41) and N$_2$(v<58) are investigated. The sensitivity of the zero-dimensional model with respect to a variation of the VDF resolutions, wall reaction probabilities and synthetic air impurity levels is presented. The simulated plasma properties are sensitive to the variation especially for a feeding gas mixture containing nitrogen.
Charged lepton flavor violation in light of Muon $g-2$
Creators: name: Hou, Wei-Shu
name: Kumar, Girish
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent confirmation of the muon $g-2$ anomaly by the Fermilab g-2 experiment may harbinger a new era in $μ$ and $τ$ physics. In the context of general two Higgs doublet model, the discrepancy can be explained via one-loop exchange of sub-TeV exotic scalar and pseudoscalars, namely $H$ and $A$, that have flavor changing neutral couplings $ρ_{τμ}$ and $ρ_{μτ}$ at $\sim 20$ times the usual tau Yukawa coupling, $λ_τ$. Taking $ρ_{\ell\ell^\prime}\sim λ_{ \rm min(\ell, \ell^\prime)}$, we show that the above solution to muon $g-2$ then predicts enhanced rates of various charged lepton flavor violating processes, which should be accessible at upcoming experiments. We cover muon related processes such as $μ\to e γ$, $μ\to eee$ and $μN \to e N$, and $τ$ decays $τ\to μγ$ and $τ\to μμμ$. A similar one-loop diagram with $ρ_{eτ}= ρ_{τe} = {\cal O}(λ_e)$ induces $μ\to eγ$, bringing the rate right into the sensitivity of the MEG~II experiment. The $μeγ$ dipole can be probed further by $μ\to 3e$ and $μN \to e N$. With its promised sensitivity range and ability to use different nuclei, the $μN \to eN$ conversion experiments can not only make discovery, but access the extra diagonal quark Yukawa couplings $ρ_{qq}$. For the $τ$ lepton, we find that $τ\to μγ$ would probe $ρ_{ττ}$ down to $λ_τ$ or lower, while $τ\to 3μ$ would probe $ρ_{μμ}$ to ${\cal O}(λ_μ)$.
description: 8 pages, 3 figures, v2: matches journal version; v3: includes additional references related to muon g-2 SM prediction
Unveiling the structure of wide flat minima in neural networks
Creators: name: Baldassi, Carlo
name: Lauditi, Clarissa
name: Malatesta, Enrico M.
name: Perugini, Gabriele
name: Zecchina, Riccardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The success of deep learning has revealed the application potential of neural networks across the sciences and opened up fundamental theoretical problems. In particular, the fact that learning algorithms based on simple variants of gradient methods are able to find near-optimal minima of highly nonconvex loss functions is an unexpected feature of neural networks. Moreover, such algorithms are able to fit the data even in the presence of noise, and yet they have excellent predictive capabilities. Several empirical results have shown a reproducible correlation between the so-called flatness of the minima achieved by the algorithms and the generalization performance. At the same time, statistical physics results have shown that in nonconvex networks a multitude of narrow minima may coexist with a much smaller number of wide flat minima, which generalize well. Here we show that wide flat minima arise as complex extensive structures, from the coalescence of minima around "high-margin" (i.e., locally robust) configurations. Despite being exponentially rare compared to zero-margin ones, high-margin minima tend to concentrate in particular regions. These minima are in turn surrounded by other solutions of smaller and smaller margin, leading to dense regions of solutions over long distances. Our analysis also provides an alternative analytical method for estimating when flat minima appear and when algorithms begin to find solutions, as the number of model parameters varies.
description: 15 pages, 8 figures
Scalar field and QCD constraints in Nuclear Physics
Creators: name: Ericson, M.
name: Chanfray, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Relativistic theories of nuclear matter are discussed in a new pespective. First the chiral character of the scalar nuclear field is introduced in the framework of the linear sigma model. With the assumption that the nucleon mass originates in part from the coupling to the quark condensate it is possible to relate the optical potential for the propagation of the scalar field to the QCD scalar susceptibility of the nucleon, on which indications exist from the lattice evolution of the nucleon mass with the quark mass. Constraining the parameters of the nuclear scalar potential by the lattice expansion parameters a successful description of the nuclear saturation properties can be reached.