cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fintech Development, RegTech and Financial Institutions in Ghana
Creators: name: Tampuri, Mark Y.
name: Paintsil, Adwoa
name: Boateng Mensah, Spencer Kwabena
Publisher: name: International Journal of Business Innovation
Year: 2023

description: This paper examines the development of Fintech in Ghana, focusing on policy, legal, and technical aspects. It analyzes Ghana's regulatory sandbox and Fintech laws, including consumer protection, data protection, and cyber security. The study explores the evolution of regulations and their impact on the Fintech landscape, as well as the use of technology by financial regulators and Fintech companies for supervision and compliance. Assessing challenges and industry stability, the paper evaluates the potential of Regtech to transform Ghana's financial regulatory model. Policy recommendations are provided to enhance the financial Regtech framework. Employing a multimodal approach, this study provides a comprehensive analysis of Fintech in Ghana, highlighting the importance of a coordinated approach to Fintech policy development and implementation
description: International Journal of Business Innovation, Volume 2 Issue 4 (2023)
Topological Protection of Coherence in Noisy Open Quantum Systems
Creators: name: Yao, Yu
name: Schlömer, Henning
name: Ma, Zhengzhi
name: Venuti, Lorenzo Campos
name: Haas, Stephan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider topological protection mechanisms in dissipative quantum systems in the presence of quenched disorder, with the intent to prolong coherence times of qubits. The physical setting is a network of qubits and dissipative cavities whose coupling parameters are tunable, such that topological edge states can be stabilized. The evolution of a fiducial qubit is entirely determined by a non-Hermitian Hamiltonian which thus emerges from a bona-fide physical process. It is shown how even in the presence of disorder winding numbers can be defined and evaluated in real space, as long as certain symmetries are preserved. Hence we can construct the topological phase diagrams of noisy open quantum models, such as the non-Hermitian disordered Su-Schrieffer- Heeger dimer model and a trimer model that includes longer-range couplings. In the presence of competing disorder parameters, interesting re-entrance phenomena of topologically non-trivial sectors are observed. This means that in certain parameter regions, increasing disorder drastically increases the coherence time of the fiducial qubit.
Participation in structured diabetes self-management education programs and its associations with self-management behaviour – a nationwide population-based study
Creators: name: Carmienke, Solveig
name: Fink, Astrid
name: Baumert, Jens
name: Heidemann, Christin
name: Du, Yong
name: Frese, Thomas
name: Heise, Marcus
Publisher: name: Robert Koch-Institut
Year: 2021
Subjects: subject: Structured diabetes self-management education programs
subject: Diabetes mellitus
subject: Self-management behaviour
subject: Populations-based study
subject: 610 Medizin und Gesundheit

description: Objective: To evaluate the relationship between participation in structured diabetes self-management education programs (DSME) and self-management behaviour (SMB) in routine care. Methods: The study included 864 ever- and 515 never-DSME participants from the population-based survey German Health Update (GEDA) 2014/2015. SMB and clinical care variables were: Following a diet plan, keeping a diabetes diary, holding a diabetes pass, self-monitoring of blood glucose (SMBG), foot self-examination (FSE), retinopathy screening, haemoglobin A1c (HbA1c) measurement and examination of the feet by clinicians (FEC). We conducted logistic regression analyses for association of DSME-participation with SMB, adjusting for various variables. Results: DSME-participation was significantly associated with SMB including following a diet plan (OR 1.88 [95% CI 1.21–2.92]), keeping a diabetes journal (OR 3.83 [2.74–5.36]), holding a diabetes health passport (OR 6.11 [4.40–8.48]), SMBG (OR 2.96 [2.20–3.98]) and FSE (OR 2.64 [2.01–3.47]) as well as retinopathy screening (OR 3.30 [2.31–4.70]), HbA1c measurement (OR 2.58 [1.88–3.52]), and FEC (OR 3.68 [2.76–4.89]) after adjusting for confounders. Conclusion: DSME-participation is associated with higher frequencies of various SMB and clinical care variables in routine care. Never-DSME attenders are more likely not to receive retinopathy screening, FEC and HbA1c measurements as recommended. Practice implications: Clinicians should refer diabetes patients to a DSME and ensure a regular follow up for never-DSME attenders.
The Impact of Industries 4.0 and 5.0 on the Professional Accountant and Auditor's Integrated Thinking Skills Skillset and Other Pervsivae Skills
Creators: name: Du Toit, Erica
name: Marx, Ben
name: Smith, Rozanne Janet
Publisher: name: International Journal of Business Innovation
Year: 2023

description: Industry 4.0 and Industry 5.0 has brought about significant changes in the business world at large, the job market and more specifically on the role that the professional accountant is expected to play. As a result of the changing role of professional accountants, an altered and enhanced skillset is required with a much greater emphasis on pervasive skills. The objective of this study is to analyse the impact of Industry 4.0 and Industry 5.0 on the skillset required for professional accountants. In the study, emphasis is placed on the ability to think in an integrated manner as the modern business world is characterised by complex problems that can only be solved if professional accountants are able to think across disciplines and draw from non-financial, financial, internal, and external information. By using an archival research design, the study found that due to the complexities that Industry 4.0 and Industry 5.0 brought about in the business world, the role of the professional accountant has changed significantly and for this new role a new pervasive skillset is required. Especially integrated thinking skills are crucial for the professional accountant to possess.
description: International Journal of Business Innovation, Volume 2 Issue 4 (2023)
Beyond Procrustes: Balancing-Free Gradient Descent for Asymmetric Low-Rank Matrix Sensing
Creators: name: Ma, Cong
name: Li, Yuanxin
name: Chi, Yuejie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Low-rank matrix estimation plays a central role in various applications across science and engineering. Recently, nonconvex formulations based on matrix factorization are provably solved by simple gradient descent algorithms with strong computational and statistical guarantees. However, when the low-rank matrices are asymmetric, existing approaches rely on adding a regularization term to balance the scale of the two matrix factors which in practice can be removed safely without hurting the performance when initialized via the spectral method. In this paper, we provide a theoretical justification to this for the matrix sensing problem, which aims to recover a low-rank matrix from a small number of linear measurements. As long as the measurement ensemble satisfies the restricted isometry property, gradient descent -- in conjunction with spectral initialization -- converges linearly without the need of explicitly promoting balancedness of the factors; in fact, the factors stay balanced automatically throughout the execution of the algorithm. Our analysis is based on analyzing the evolution of a new distance metric that directly accounts for the ambiguity due to invertible transforms, and might be of independent interest.
description: To appear on IEEE Trans. on Signal Processing
Spectral Analysis of New Black Hole Candidate AT2019wey Observed by NuSTAR
Creators: name: Feng, Ye
name: Zhao, Xueshan
name: Gou, Lijun
name: Li, Yufeng
name: Steiner, James F.
name: García, Javier A.
name: Wang, Yuan
name: Jia, Nan
name: Liao, Zhenxuan
name: Li, Huixian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: AT2019wey is a new galactic X-ray binary that was first discovered as an optical transient by the Australia Telescope Large Area Survey (ATLAS) on December 7, 2019. AT2019wey consists of a black hole candidate as well as a low-mass companion star ($M_{\text {star }} \lesssim 0.8 M_{\odot}$) and is likely to have a short orbital period ($P_{\text {orb }} \lesssim 8$ h). Although AT2019wey began activation in the X-ray band during almost the entire outburst on March 8, 2020, it did not enter the soft state during the entire outburst. In this study, we present a detailed spectral analysis of AT2019wey in the low/hard state during its X-ray outburst on the basis of Nuclear Spectroscopic Telescope Array \emph observations. We obtain tight constraints on several of its important physical parameters by applying the State-of-art \texttt{relxill} relativistic reflection model family. In particular, we determine that the measured inner radius of the accretion disk is most likely to have extended to the innermost stable circular orbit (ISCO) radius, i.e., $R_{\text{in}}=1.38^{+0.23}_{-0.16}~R_{\text{ISCO}}$. Hence, assuming $R_{\text{in}}$=$R_{\text{ISCO}}$, we find the spin of AT2019wey to be $a_{*}\sim$ $0.97$, which is close to the extreme and an inner disk inclination angle of ~$i\sim$ $22 ^{\circ}$. Additionally, according to our adopted models, AT2019wey tends to have a relatively high iron abundance of $A_{\mathrm{Fe}}\sim$ 5 $A_{\mathrm{Fe}, \odot}$ and a high disk ionization state of $\log ξ\sim$ 3.4.
description: 14 pages, 4 figures; Accepted for publication in SCPMA
MPEC 2024-A22 : 2024 AH
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AH

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The faint 2005 hard state outburst of Aquila X-1 seen by INTEGRAL and RXTE
Creators: name: Rodriguez, Jerome
name: Shaw, Simon E.
name: Corbel, Stephane
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the spectral analysis of RXTE and INTEGRAL data of the 2005 April outburst of the transient Atoll source Aql X-1. Although this outburst is one of the faintest ever detected for this source in the soft X-rays (RXTE/ASM), one of our INTEGRAL observations, taken close to the soft X-ray peak, shows that the source flux was quite high, with a 20-200 keV flux of 2.05 x 10^-9 erg cm^-2 s^-1. On this occasion we detect the source up to 150 keV for the first time. We compare and discuss the similarity of the source behavior with that of black hole transients especially XTE J1550-564.
description: 4 pages 2 figures, Accepted for publication in A&A as a RESEARCH NOTE
Planar dynamics and control of space-based flexible manipulators with slewing and deployable links
Creators: name: Caron, Mathieu
Publisher: name: University of British Columbia
Year: 2009

description: Space manipulators present several features uncommon to ground-based robots: they are highly flexible, often mobile, and have a degree of redundancy. As space robots become more complex, efficient algorithms are required for their simulation and control. The present study uses an order N algorithm, based on the Lagrangian approach and velocity transformations, to simulate the planar dynamics of an orbiting manipulator with arbitrary number of slewing and deployable flexible links. The relatively general formulation accounts for interactions between orbital, librational, slewing, deployment, and vibrational degrees of freedom, and thus is applicable to a large class of manipulator systems of contemporary interest. Validity of the formulation and computer code is established through verification of energy conservation and comparison with particular cases reported by other investigators. A parametric analysis of the system dynamics is carried out. Several factors are considered: initial disturbances, variation of system parameters, number of manipulator links, and maneuver profiles. The study suggests significant coupling between the rigid body motion and structural vibrations. It was found that the system's flexibility can significantly affect the manipulator's performance. A nonlinear controller based on the Feedback Linearization Technique is developed to regulate the rigid degrees of freedom. A linear quadratic regulator is designed to suppress the manipulator and platform vibrations.
N=1 SUSY Conformal Block Recursive Relations
Creators: name: Belavin, V. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present explicit recursive relations for the four-point superconformal block functions that are essentially particular contributions of the given conformal class to the four-point correlation function. The approach is based on the analytic properties of the superconformal blocks as functions of the conformal dimensions and the central charge of the superconformal algebra. The results are compared with the explicit analytic expressions obtained for special parameter values corresponding to the truncated operator product expansion. These recursive relations are an efficient tool for numerically studying the four-point correlation function in Super Conformal Field Theory in the framework of the bootstrap approach, similar to that in the case of the purely conformal symmetry.
description: 12 pages, typos corrected, reference added
Supplementary Materials from Turning turtle: scaling relationships and self-righting ability in Chelydra serpentina
Creators: name: Ruhr, Ilan M.
name: Rose, Kayleigh A. R.
name: Sellers, William I.
name: Crossley, Dane A.
name: Codd, Jonathan R.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Figures and Tables
Molecular adsorption studies of formaldehyde and methanol on novel twisted bilayer beta phosphorene sheets – a first-principles investigation
Creators: name: Nagarajan, V.
name: Chandiramouli, R.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: The success of graphene and other two-dimensional layered materials opens the way for potential applications. In this report, we investigated the structural stability of twisted bilayer beta phosphorene (TB-PNS) and found stable from the formation energy. Besides, TB-PNS falls in the semiconductor classification with an energy band gap of 0.663 eV. The TB-PNS is deployed as a base substrate to adsorb formaldehyde and methanol vapours. Moreover, the chemi-resistive nature of TB-PNS is observed owing to the adsorption and desorption of formaldehyde and methanol molecules. Also, the electronic properties such as band structure, density of states, and electron density difference show a significant variation due to the adsorption of formaldehyde and methanol. Hence, the results suggest that TB-PNS is a suitable sensing base substrate for formaldehyde and methanol.
Role of magnetic scattering in 0-pi transitions in a superconductor/ferromagnetic metal/superconductor junction
Creators: name: Mori, M.
name: Hikino, S.
name: Takahashi, S.
name: Maekawa, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the influence of magnetic scattering on the Josephson critical current, Ic, in a superconductor/ferromagnetic metal/superconductor (SFS) junction by a tunneling Hamiltonian approach. An analytical formula of Ic is given in the fourth order perturbation theory as regards the tunneling matrix element. The Ic exhibits the damped oscillatory dependence on the thickness of the ferromagnetic metal, d, and shows the transition between 0- and pi-states with d. When the superconducting transition temperature is comparable to the ferromagnetic Curie temperature, the period of oscillation is obviously changed by increasing temperature, T, due to the magnetic scattering, which induces the 0-pi transition with T. The magnetic scattering provides rich variety of Josephson effect in the SFS junction. Our results present an appropriate condition of a superconductor and a ferromagnetic metal to control the 0- and the pi-states.
description: Corrected typos and added Journal-ref
Tswefap Independent Elicitation Materials
Creators: name: Tchatchouang, Guy
name: Clem, Emily
name: Hyman, Larry M.
name: Maier, Erik Hans
name: Najarian, Evelyn
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024

description: Audio recordings of elicitation sessions, scanned notes, and alphabet illustrations. Elicitation sessions include a combination of targeted grammatical investigation on topics such as quantification, binding, and comparatives, as well as exploratory work to support community-oriented initiatives, such as orthography development.
Hamiltonian Quantum Cellular Automata in 1D
Creators: name: Nagaj, Daniel
name: Wocjan, Pawel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct a simple translationally invariant, nearest-neighbor Hamiltonian on a chain of 10-dimensional qudits that makes it possible to realize universal quantum computing without any external control during the computational process. We only require the ability to prepare an initial computational basis state which encodes both the quantum circuit and its input. The computational process is then carried out by the autonomous Hamiltonian time evolution. After a time polynomially long in the size of the quantum circuit has passed, the result of the computation is obtained with high probability by measuring a few qudits in the computational basis. This result also implies that there cannot exist efficient classical simulation methods for generic translationally invariant nearest-neighbor Hamiltonians on qudit chains, unless quantum computers can be efficiently simulated by classical computers (or, put in complexity theoretic terms, unless BPP=BQP).
description: explanation in Section II largely rewritten, 2 new figures, accepted for publication in PRA
Gradient estimates for the nonlinear parabolic equation with two exponents on Riemannian manifolds
Creators: name: Hou, Songbo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58J35, 35K55

description: In this paper, we study the nonlinear parabolic equation with two exponents on complete noncompact Riemannian maniflods. The special types of such equation include the Fisher-KPP equation, the parabolic Allen-Cahn equation and the Newell-Whitehead equation. We get the Souplet-Zhang's gradeint estimates for the positive solutions to such equation. We also obtain the Liouville theorem for positive ancient solutions. Our results extend those of Souplet-Zhang (Bull. London. Math. Soc. 38:1045-1053, 2006) and Zhu (Acta Mathematica Scientia 36B(2): 514-526, 2016).
description: 8 pages
Theoretical study of the reactions of triplet Oxygen atom with methyl and ethyl hydroperoxides
Creators: name: Shi, Gai
name: Song, Jinou
name: Li, Zhijun
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: The O(3P) + CH3OOH and O(3P) + C2H5OOH reactions were characterised using M06-2x/aug-cc-pVQZ level of theory. The electronic energies were refined by CCSD(T)/CBS theory. The H-abstraction channels involving the formation of reactant complexes were more kinetically favourable than others. The H-abstraction from the OH group was dominant channel for the O(3P) + CH3OOH reaction at the temperature less than 1200 K. For the O(3P) + CH3CH2OOH reaction, the dominant channel is the H-abstraction from the OH group over the temperature range of 600–1300 K and the H-abstraction from the CH2 group at the temperature less than 500 K.
Nonlinear Hall effect induced by internal Coulomb interaction and phase relaxation process in a four-terminal system with time-reversal symmetry
Creators: name: Wei, Miaomiao
name: Wang, Bin
name: Yu, Yunjin
name: Xu, Fuming
name: Wang, Jian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We numerically investigate the second-order nonlinear Hall transport properties of a four-terminal system with time-reversal symmetry and broken inversion symmetry. Within the nonequilibrium Green's function formalism, the second-order nonlinear conductances are derived, where the internal Coulomb potential in response to external voltages is explicitly included to guarantee the gauge invariance. For the system with single mirror symmetry Mx, nonlinear Hall properties are only observable in the y direction and contributed solely from the second-order nonlinear effect. From the symmetry point of view, the observed nonlinear Hall transport phenomena have one-to-one correspondence with the Berry curvature dipole induced nonlinear Hall effect semiclassically obtained for the same Hamiltonian. In addition to the nonlinear Hall effect originated from symmetries of the system, it is found that the internal Coulomb potential has the same symmetry of the four-terminal system, which gives rise to an extra nonlinear Hall response. Moreover, the phase relaxation mechanism modeled by virtual probes leads to the dephasing-induced nonlinear Hall effect.
A cryogenic continuously rotating half-wave plate for the POLARBEAR-2b cosmic microwave background receiver
Creators: name: Hill, C. A.
name: Kusaka, A.
name: Ashton, P.
name: Barton, P.
name: Adkins, T.
name: Arnold, K.
name: Bixler, B.
name: Ganjam, S.
name: Lee, A. T.
name: Matsuda, F.
name: Matsumura, T.
name: Sakurai, Y.
name: Tat, R.
name: Zhou, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the design and laboratory evaluation of a cryogenic continuously rotating half-wave plate (CHWP) for the POLARBEAR-2b (PB-2b) cosmic microwave background (CMB) receiver, the second installment of the Simons Array. PB-2b will observe at 5,200 m elevation in the Atacama Desert of Chile in two frequency bands centered at 90 and 150 GHz. In order to suppress atmospheric 1/f noise and mitigate systematic effects that arise when differencing orthogonal detectors, PB-2b modulates linear sky polarization using a CHWP rotating at 2 Hz. The CHWP has a 440 mm clear aperture diameter and is cooled to $\approx$ 50 K in the PB-2b receiver cryostat. It consists of a low-friction superconducting magnetic bearing (SMB) and a low-torque synchronous electromagnetic motor, which together dissipate < 2 W. During cooldown, a grip-and-release mechanism centers the rotor to < 0.5 mm, and during continuous rotation, an incremental optical encoder measures the rotor angle with a noise level of 0.1 $\mathrm{μrad / \sqrt{Hz}}$. We discuss the experimental requirements for the PB-2b CHWP, the designs of its various subsystems, and the results of its evaluation in the laboratory. The presented CHWP has been deployed to Chile and is expected to see first light on PB-2b in 2020 or 2021.
description: PREPRINT. Submitted to Review of Scientific Instruments, September 2020. v2 updates refs 41-42
Martin boundary of a killed random walk on a half-space
Creators: name: Ignatiouk-Robert, Irina
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F10

description: A complete representation of the Martin boundary of killed random walks on a half-space $\Z^{d-1}\times\N^*$ is obtained. In particular, it is proved that the corresponding Martin boundary is homemorphic to the half-sphere ${\cal S}^d_+ = \{z\in\R^{d-1}\times\R_+ : |z|=1\}$. The method is based on a combination of ratio limits theorems and large deviation techniques.
Neutrino lines from DM decay induced by high-scale seesaw interactions
Creators: name: Coy, Rupert
name: Hambye, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the stability of the dark matter (DM) particle is due to an accidental symmetry, nothing prevents UV physics from destabilising it by inducing DM decays suppressed by powers of the UV scale. The seesaw physics, presumably at the origin of neutrino mass, could induce such a decay. We show that if the seesaw scale lies around the usual Weinberg operator scale, the induced DM decay could generically lead to neutrino lines whose intensity is of the order of the present sensitivity of neutrino telescopes. We illustrate this possibility with models in which the DM is made of the gauge boson(s) of an abelian or non-abelian gauge symmetry.
description: 8 pages, 6 figures
Empirical study on clique-degree distribution of networks
Creators: name: Xiao, Wei-Ke
name: Ren, Jie
name: Feng, Qi
name: Song, Zhi-Wei
name: Zhu, Meng-Xiao
name: Yang, Hong-Feng
name: Jin, Hui-Yu
name: Wang, Bing-Hong
name: Zhou, Tao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The community structure and motif-modular-network hierarchy are of great importance for understanding the relationship between structures and functions. In this paper, we investigate the distribution of clique-degree, which is an extension of degree and can be used to measure the density of cliques in networks. The empirical studies indicate the extensive existence of power-law clique-degree distributions in various real networks, and the power-law exponent decreases with the increasing of clique size.
description: 9 figures, 4 pages
Explainable COVID-19 Detection Using Chest CT Scans and Deep Learning
Creators: name: Alshazly, Hammam
name: Linse, Christoph
name: Barth, Erhardt
name: Martinetz, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper explores how well deep learning models trained on chest CT images can diagnose COVID-19 infected people in a fast and automated process. To this end, we adopt advanced deep network architectures and propose a transfer learning strategy using custom-sized input tailored for each deep architecture to achieve the best performance. We conduct extensive sets of experiments on two CT image datasets, namely the SARS-CoV-2 CT-scan and the COVID19-CT. The obtained results show superior performances for our models compared with previous studies, where our best models achieve average accuracy, precision, sensitivity, specificity and F1 score of 99.4%, 99.6%, 99.8%, 99.6% and 99.4% on the SARS-CoV-2 dataset; and 92.9%, 91.3%, 93.7%, 92.2% and 92.5% on the COVID19-CT dataset, respectively. Furthermore, we apply two visualization techniques to provide visual explanations for the models' predictions. The visualizations show well-separated clusters for CT images of COVID-19 from other lung diseases, and accurate localizations of the COVID-19 associated regions.
Interactional space
Creators: name: Mondada, Lorenza
Publisher: name: OSF
Year: 2022
Subjects: Conversation Analysis
Encyclopedia
Ethnomethodology
Interactional Linguistics

description: Interactional space refers to the dynamic (re)arrangement of participants’ bodies in the environment, as interaction unfolds. It is continuously achieved through the finely-tuned coordination, mutual adjustment, and collective distribution of bodies in space while participants interact together.
Stenus fenestrulifer Puthz 2016, nov.sp.
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus fenestrulifer

description: Stenus fenestrulifer nov.sp.
(Abb. 46, 80, 112, 283)
Material: Holotypus (♀): ECUADOR: Pichincha, San Rafael Sucumbios, 1300m, 0 o 06’S, 77 o 35’W, zwischen Steinen und Blättern am Fluss, 2.V.2004, L. Koerner: in cP (SMNS)..
Beschreibung: Makropter, schwarz, jede Elytre mit einem ovalen, orangenen Fleck im hinteren Aussenviertel (Abb. 46), mässig glänzend; Vorderkörper grob und sehr dicht, Abdomen wenig grob (vorn) bis fein (hinten), wenig dicht punktiert, mässig lang, anliegend beborstet. Kiefertaster hellgelb. Fühlerbasis und Beine bräunlichgelb. Clypeus schwarz, Oberlippe dunkel, mässig dicht beborstet, Abdomen seitlich breit gerandet, Tarsen ungelappt.
Länge: 4,0mm (Vorderkörperlänge: 2,2mm).
PM des HT: HW: 36,5; DE: 20; PW: 29; PL: 29; EW: 42.5; EL: 38; SL: 28.
Männchen: Unbekannt.
Weibchen: 8. Sternit (Abb. 283). Valvifer apikal gesägt. 10. Tergit am Hinterrand abgerundet.
Differenzial diagnose: In den meisten Punkten dem S. fenestralis FAUVEL zum Verwechseln ähnlich, unter anderem aber die Stirn anders gebaut: breit, Längsfurchen scharf und tief, Mittelteil deutlich etwas schmäler als jedes der Seitenteile, rundbeulig erhoben, aber nicht das Niveau der Augeninnenränder erreichend; Punktierung grob und überwiegend sehr dicht, mittlerer Punktdurchmesser fast so gross wie der apikale Querschnitt des 2. Fühlergliedes, Punktzwischenräume deutlich kleiner als die Punktradien, die Antennalhöcker (lang), der Mittelteil (bis auf wenige Punkte) und ein etwa punktgrosser Fleck neben dem hinteren Augeninnenrand sind unpunktiert. Auch ist das Abdomen feiner und weitläufiger als bei S. fenestralis punktiert: das 7. Tergit ist ungenetzt, die Punkte sind hier höchstens so gross wie der basale Querschnitt des 3. Fühlergliedes, ihre Abstände deutlich grösser als die Punkte (Abb. 80, vgl. Abb. 111, 112). Von allen dem S. fenestralis Fauvel nächstverwandten Arten unterscheidet sich die neue Art durch den Umriss der hinteren Partie des 8. Sternits des Weibchens.- Im Übrigen von S. fenestralis, S. perrugosus L. BENICK und S. spicativentris nov.sp. durch ihr feiner und weitläufiger punktiertes, ungenetztes Abdomen.
Etymologie: Wegen der orangenen Elytrenmakeln und um ihre Verwandtschaft zu S. fenestralis zu signalisieren, nenne ich diese neue Art " fenestrulifer " (Lat. = mit kleinen "Fensterchen" = Makeln).
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on pages 1581-1582, DOI: 10.5281/zenodo.5355748
All-Optical Matter-Wave Lens using Time-Averaged Potentials
Creators: name: Albers, H.
name: Corgier, R.
name: Herbst, A.
name: Rajagopalan, A.
name: Schubert, C.
name: Vogt, C.
name: Woltmann, M.
name: Lämmerzahl, C.
name: Herrmann, S.
name: Charron, E.
name: Ertmer, W.
name: Rasel, E. M.
name: Gaaloul, N.
name: Schlippert, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The stability of matter-wave sensors benefits from interrogating large-particle-number atomic ensembles at high cycle rates. The use of quantum-degenerate gases with their low effective temperatures allows constraining systematic errors towards highest accuracy, but their production by evaporative cooling is costly with regard to both atom number and cycle rate. In this work, we report on the creation of cold matter-waves using a crossed optical dipole trap and shaping it by means of an all-optical matter-wave lens. We demonstrate the trade off between residual kinetic energy and atom number by short-cutting evaporative cooling and estimate the corresponding performance gain in matter-wave sensors. Our method is implemented using time-averaged optical potentials and hence easily applicable in optical dipole trapping setups.
description: 10 pages, 5 figures
Stenus certatus SHARP 1876
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus certatus

description: Stenus certatus SHARP, 1876
Stenus certatus SHARP, 1876: 365.
Diese Art kommt auch in Peru vor: 2♂♂, 2 ♀♀: Loreto, Rio Mazan, 10.X.1980, C. Vaucher (MHNG, cP).
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on page 1604, DOI: 10.5281/zenodo.5355748
An integration of geothermal energy, waste, and cold energy system employing the technology of organic Rankine cycle
Creators: name: Sindu Daniarta
name: Kolasiński, Piotr
Publisher: name: Technical University of Munich
Year: 2021

description: Geothermal energy refers to heat sources from the subsurface of the earth that could be directly utilized in many applications like space heating, aquaculture, greenhouses, snow melting, spas, etc., and to generate power by utilizing the dry, binary, flash, and combined thermodynamic cycle. The value chain of geothermal energy utilization is like the oil and gas production, starting from exploration, exploitation and production. Nevertheless, in the case of distribution, it seems that the geothermal energy might not be freely transported (like oil and gas), and geothermal heat must be utilized immediately at a place where it is extracted. This paper presents the concept, calculation model and thermodynamic analysis of a geothermal power system integrated with a thermal energy storage system using dimethyl ether (DME) as a phase-change material and an Organic Rankine Cycle (ORC) system. The DME appears to be an excellent option for this integration because it is a clean substance produced with syngas that could be obtained from several sources (e.g., coal, methanol, biogas, etc.) and distributed in liquefied form, i.e., the liquefied dimethyl ether (LDME). Since it could be extracted from biogas, the system might exploit biogas production technology from waste. The LDME seems to be an excellent way to distribute the DME as liquefication reduces its volume. It is the similar method as it is widely applied for the liquefication of natural gas (LNG), which could be then used to store cold energy. The cold energy has promising potential to generate power by applying a cryogenic power system based on ORC technology. Thanks to the application of LDME and ORC technology, it could be possible, in a certain sense, to transport the geothermal energy at a distance. Therefore, this integrated method tends to be a promising solution for the energy system and the environment. The advantages of this system are to increase the competitiveness of the geothermal system and the improvement of waste management.
A perception centred self-driving system without HD Maps
Creators: name: Sun, Alan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Building a fully autonomous self-driving system has been discussed for more than 20 years yet remains unsolved. Previous systems have limited ability to scale. Their localization subsystem needs labor-intensive map recording for running in a new area, and the accuracy decreases after the changes occur in the environment. In this paper, a new localization method is proposed to solve the scalability problems, with a new method for detecting and making sense of diverse traffic lines. Like the way human drives, a self-driving system should not rely on an exact position to travel in most scenarios. As a result, without HD Maps, GPS or IMU, the proposed localization subsystem relies only on detecting driving-related features around (like lane lines, stop lines, and merging lane lines). For spotting and reasoning all these features, a new line detector is proposed and tested against multiple datasets.
Amahuaca Field Materials
Creators: name: MPR
name: Piño Bonangué, José
name: Piño Miqueas, Juan
name: Piño Ríos, Floria
name: Piño Ríos, Zoila
name: Pérez Fernández, Esperanza
name: Sampi Ríos, Celia
name: Soria Cauper, Edinson
name: Soria Pérez, Celia
name: Soria Pérez, Rolando
name: Venacho Campos, María
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024

description: The collection contains audiovisual recordings of elicitation sessions and texts as well as accompanying notes. The notes represent information taken from handwritten field notes created during elicitation sessions with added interlinear glossing. Orthography and glossing largely follow the conventions used in Emily Clem's (2019) PhD dissertation, "Agreement, case, and switch-reference in Amahuaca," at the University of California, Berkeley. Spanish translations typically reflect a prompt that was given to the consultant or a back-translation offered by the consultant. English translations are based on the Spanish translation when available. Otherwise, the English translation represents the researcher's understanding of the meaning of the Amahuaca utterance.
A preliminary study of two-phase volumetric expanders and their application in ORC systems
Creators: name: Sindu Daniarta
name: Kolasiński, Piotr
Publisher: name: Technical University of Munich
Year: 2021

description: Organic Rankine Cycle (ORC) is considered one of the promising solutions for generating power using organic working fluid instead of water. Practically, the efficiency of ORC depends on the applied working fluid and its thermophysical properties. Also, it is significantly influenced by the temperature and the flow rate of the heat source. Some heat sources (e.g., waste heat or heat obtained from biomass combustion) may feature floating thermal and output characteristics. The ORC system may be designed in a way enabling its operation in two-phase conditions (i.e., for the vapour quality of 0 𝑥 1) to efficiently utilize such heat sources. The applicability of turbines is in this operating condition significantly limited as they tend to operate in dry vapour conditions. The literature review shows that different volumetric machines (i.e., rotary and reciprocating positive-displacement (PD) machines, such as piston, gerotor, screw, scroll and vane) can work with liquids and wet gases. Nowadays, these machines are applied mainly as pumps and compressors, but several researchers have been investigating and modifying them into expanders that could be applied in ORC systems. The operating principle of PD pumps and compressors differ from the centrifugal one. The PD pumps are applicable to a broader range of liquids, slurries, and foams that could be pumped without product degradation. Furthermore, the PD compressors are operating at a relatively low-pressure range and are commonly used in pneumatic and refrigeration systems. The PD machines could use gases and liquids as working fluids and therefore have the potential to be modified into two-phase expanders. The application of two-phase expanders in the ORC system gives the possibility to enhance the range of operating conditions in the system. This paper presents the results of a literature review on the mathematical models and experimental results related to the application of volumetric expanders in steam and ORC power systems operating in two-phase conditions. The most important features and characteristics of the twophase expanders are discussed. Moreover, a preliminary experimental study concerning the possibility of applying a multi-vane expander for a two-phase expansion in a micro-power ORC system is reported.
On the Geometry of the Orbits of Hermann Actions
Creators: name: Goertsches, Oliver
name: Thorbergsson, Gudlaugur
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C35

description: We investigate the submanifold geometry of the orbits of Hermann actions on Riemannian symmetric spaces. After proving that the curvature and shape operators of these orbits commute, we calculate the eigenvalues of the shape operators in terms of the restricted roots. As applications, we get a formula for the volumes of the orbits and a new proof of a Weyl-type integration formula for Hermann actions.
description: 22 pages
Quasi-one-dimensional magnetism in the spin-$\frac12$ antiferromagnet BaNa$_{2}$Cu(VO$_{4}$)$_{2}$
Creators: name: Sebastian, Sebin J.
name: Somesh, K.
name: Nandi, M.
name: Ahmed, N.
name: Bag, P.
name: Baenitz, M.
name: Koo, B.
name: Sichelschmidt, J.
name: Tsirlin, A. A.
name: Furukawa, Y.
name: Nath, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report synthesis and magnetic properties of quasi-one-dimensional spin-$\frac{1}{2}$ Heisenberg antiferromagnetic chain compound BaNa$_2$Cu(VO$_4$)$_2$. This orthovanadate has a centrosymmetric crystal structure, $C2/c$, where the magnetic Cu$^{2+}$ ions form spin chains. These chains are arranged in layers, with the chain direction changing by 62$^0$ between the two successive layers. Alternatively, the spin lattice can be viewed as anisotropic triangular layers upon taking the inter-chain interactions into consideration. Despite this potential structural complexity, temperature-dependent magnetic susceptibility, heat capacity, ESR intensity, and NMR shift agree well with the uniform spin-$1/2$ Heisenberg chain model with an intrachain coupling of $J/k_{\rm B} \simeq 5.6$ K. The saturation field obtained from the magnetic isotherm measurement consistently reproduces the value of $J/k_{\rm B}$. Further, the $^{51}$V NMR spin-lattice relaxation rate mimics the 1D character in the intermediate temperature range, whereas magnetic long-range order sets in below $T_{\rm N} \simeq 0.25$ K. The effective interchain coupling is estimated to be $J_{\perp}/k_{\rm B} \simeq 0.1$ K. The theoretical estimation of exchange couplings using band-structure calculations reciprocate our experimental findings and unambiguously establish the 1D character of the compound. Finally, the spin lattice of BaNa$_2$Cu(VO$_4$)$_2$ is compared with the chemically similar but not isostructural compound BaAg$_2$Cu(VO$_4)_2$.
description: 12 pages, 11 figures, 1 table, Phys. Rev. B (accepted)
Growing Scale-free Small-world Networks with Tunable Assortative Coefficient
Creators: name: Guo, Qiang
name: Zhou, Tao
name: Liu, Jian-Guo
name: Bai, Wen-Jie
name: Wang, Bing-Hong
name: Zhao, Ming
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, we propose a simple rule that generates scale-free small-world networks with tunable assortative coefficient. These networks are constructed by two-stage adding process for each new node. The model can reproduce scale-free degree distributions and small-world effect. The simulation results are consistent with the theoretical predictions approximately. Interestingly, we obtain the nontrivial clustering coefficient $C$ and tunable degree assortativity $r$ by adjusting the parameter: the preferential exponent $β$. The model can unify the characterization of both assortative and disassortative networks.
description: 13 pages, and 5 figures
Analysis of heat transfer within rotary vane expander
Creators: name: Przemysław Błasiak
name: Kolasiński, Piotr
name: Sindu Daniarta
Publisher: name: Technical University of Munich
Year: 2021

description: Thanks to their positive features, i.e., simple design with a small number of moving parts, easy manufacturing, and low production and purchase costs, multi-vane expanders are promising for application in micro-power organic Rankine cycle systems. These expanders are simple in design, small in dimensions, inexpensive, and feature low gas flow capacity and expansion ratio. The processes of heat exchange inside the working chambers of the multi-vane machine have a significant impact on its operation and efficiency. Therefore, they are undoubtedly important from a scientific and practical point of view. The literature review shows that to date the processes of heat exchange taking place in multivane machines have not been analyzed in detail, therefore there is a lack of experimental and modelling results related to these processes. Although some analytical models related to these phenomena were formulated, there is a lack of comprehensive model analysis. The heat transfer process in a multi-vane machine is also significantly affected by the phenomenon of the boundary layer scraping by a vane. The result shows that this condition leads to disturbances in the fluid velocity profile in the gap between the vane and the cylinder. In this paper, the discussion of heat transfer models and results of experimental research and modelling on the heat transfer in multi-vane expander are reported. Experimental results show that the heat transfer direction changes during the machine operation. Modelling was focused on determining the heat transfer coefficients in the expander under various flow conditions. The comparison of the modelling results suggests that applicability of models available in the literature and applied for modelling the heat transfer in other machines and devices with rotating vanes (e.g., scraped surface heat exchangers) is limited in the case of estimating the heat transfer processes in multi-vane machines.
Magnetic Field Transport in Propagating Thermonuclear Burn
Creators: name: Appelbe, B.
name: Velikovich, A. L.
name: Sherlock, M.
name: Walsh, C. A.
name: Crilly, A. J.
name: Neill, S. O
name: Chittenden, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: High energy gain in inertial fusion schemes requires the propagation of a thermonuclear burn wave from hot to cold fuel. We consider the problem of burn propagation when a magnetic field is orthogonal to the burn wave. Using an extended-MHD model with a magnetized $α$ energy transport equation we find that the magnetic field can reduce the rate of burn propagation by suppressing electron thermal conduction and $α$ particle flux. Magnetic field transport during burn propagation is subject to competing effects: field can be advected from cold to hot regions by ablation of cold fuel, while the Nernst and $α$ particle flux effects transport field from hot to cold fuel. These effects, combined with the temperature increase due to burn, can cause the electron Hall parameter to grow rapidly at the burn front. This results in the formation of a self-insulating layer between hot and cold fuel that reduces electron thermal conductivity and $α$ transport, increases the temperature gradient and reduces the rate of burn propagation.