cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Channel Estimation based on Gaussian Mixture Models with Structured Covariances
Creators: name: Fesl, Benedikt
name: Joham, Michael
name: Hu, Sha
name: Koller, Michael
name: Turan, Nurettin
name: Utschick, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, we propose variations of a Gaussian mixture model (GMM) based channel estimator that was recently proven to be asymptotically optimal in the minimum mean square error (MMSE) sense. We account for the need of low computational complexity in the online estimation and low cost for training and storage in practical applications. To this end, we discuss modifications of the underlying expectation-maximization (EM) algorithm, which is needed to fit the parameters of the GMM, to allow for structurally constrained covariances. Further, we investigate splitting the 2D time and frequency estimation problem in wideband systems into cascaded 1D estimations with the help of the GMM. The proposed cascaded GMM approach drastically reduces the complexity and memory requirements. We observe that due to the training on realistic channel data, the proposed GMM estimators seem to inherently perform a trade-off between saving complexity/parameters and estimation performance. We compare these low-complexity approaches to a practical and low cost method that relies on the power delay profile (PDP) and the Doppler spectrum (DS). We argue that, with the training on scenario-specific data from the environment, these practical baselines are outperformed by far with equal estimation complexity.
Lebensfülle und Gerechtigkeit für alle Dominikanische Theologie eröffnet internationale Perspektiven im Umgang mit einer drohenden Leerstelle zeitgenössischer Ethik
Creators: name: Quisinsky, Michael
Publisher: name: Ethik und Gesellschaft
Year: 2023

description: Rezension von: Ellen Van Stichel / Thomas Eggensperger / Manuela Kalsky / Ulrich Engel (Hg.) (2020): Fullness of Life and Justice for All. Dominican Perspectives, Adelaide: ATF Press. 321 S., ISBN 978-1925679410, EUR 35,00.
description: Ethik und Gesellschaft, Nr. 1 (2022): Wohnvermögen
$Λ_b \to p, N^\ast(1535)$ Form Factors from QCD Light-Cone Sum Rules
Creators: name: Huang, Ke-Sheng
name: Liu, Wei
name: Shen, Yue-Long
name: Yu, Fu-Sheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this work we calculate the transition form factors of $Λ_b$ decaying into proton and $N^*(1535)$ ($J^P={1/2}^+$ and ${1/2}^-$ respectively), within the framework of light-cone sum rules with the distribution amplitudes (DAs) of $Λ_b$-baryon. In the hadronic representation of the correlation function, we have isolated both the proton and the $N^*(1535)$ states so that the $Λ_b \rightarrow p, N^*(1535)$ form factors can be evaluated simultaneously. Due to the less known properties of baryons, we investigate three interpolating currents of the light baryons and five parametrization models for DAs of $Λ_b $. Numerically, our predictions on the $Λ_b \rightarrow p$ form factors and the branching fractions of $Λ_b\to p\ell ν$ from the Ioffe or the tensor currents are consistent with the Lattice simulation and the results from the light-baryon sum rules, as well as the experimental data of $Br(Λ_b^0\to pμ^-\barν)$. The predictions on the form factors of $Λ_b \rightarrow N^*(1535)$ are very sensitive to the choice of the interpolating currents so that the relevant measurement could be helpful to clarify the properties of baryons.
description: 29 pages, 3figures
Nonlinear frequency conversion using high quality modes in GaAs nanobeam cavities
Creators: name: Buckley, Sonia
name: Radulaski, Marina
name: Zhang, Jingyuan Linda
name: Petykiewicz, Jan
name: Biermann, Klaus
name: Vuckovic, Jelena
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the design, fabrication and characterization of nanobeam photonic crystal cavities in (111)-GaAs with multiple high quality factor modes, with large frequency separations (up to 740 nm in experiment, i.e., a factor of 1.5 and up to an octave in theory). Such structures are crucial for efficient implementation of nonlinear frequency conversion. Here, we employ them to demonstrate sum frequency generation from 1300 nm and 1950 nm to 780 nm. These wavelengths are particularly interesting for quantum frequency conversion between Si vacancy centers in diamond and the fiber optic network.
description: 4 pages, 4 figures
Sozialkritik als Ziel oder Methode der Sozialethik? Ein Sammelband nimmt sich der kritischen Selbstverständigung der christlichen Sozialethik an
Creators: name: Mandry, Christof
Publisher: name: Ethik und Gesellschaft
Year: 2023

description: Rezension von: Michelle Becka / Bernhard Emunds / Johannes Eurich / Gisela Kubon-Gilke / Torsten Meireis / Matthias Möhring-Hesse (2020): Sozialethik als Kritik (Ethik und Gesellschaft, Bd.1), Baden-Baden: Nomos. 285 S., ISBN 978-3-8487-6742-7, EUR 59,00.
description: Ethik und Gesellschaft, Nr. 1 (2022): Wohnvermögen
The first synthesis of podocarflavone A and its analogs and evaluation of their antimycobacterial potential against Mycobacterium tuberculosis with the support of virtual screening
Creators: name: Puranik, Ninad V.
name: Swami, Sagar
name: Misar, Ashwini V.
name: Mamgain, Ritu
name: Gulawani, Swapnaja S.
name: Dhiman
name: Sarkar
name: Srivastava, Pratibha
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The first synthetic route developed for Podocarflavone A reported from Podocarpus macrophyllus and its analogs in 7 steps. Computational analysis for binding with the pantothenate kinase (3AVO) of Mycobacterium tuberculosis showed their docking score (ds) in the range of −8.9 to −9.3 Kcal/mol. MD simulations delineated the stability of the protein-ligand complexes in the TIP3P model. MMGBSA and MMPBSA values of 8d were −42.46 Kcal/mol and −14.58 Kcal/mol, respectively. Further in-vitro antitubercular screening of compounds 8a, 8d, and 8e against M. tuberculosis H37Ra using XRMA protocol exhibited promising antimycobacterial activity with IC50 values 21.82 µg/mL, 15.55 µg/mL, and 16.56 µg/mL, respectively. Compounds 8a, 8d, and 8e showed antibacterial activity with IC50 values 41.56 µg/mL, 24.72 µg/mL, and 72.45 µg/mL respectively against the Staphylococcus aureus. 8a and 8d showed inhibition with IC50 values 39.6 µg/mL and 27.64 µg/mL, respectively, against Bacillus subtilis. The present study could help in the further development of lead molecules against tuberculosis.
title: Conventional radiology in the study of dysphagia. The role of Barium esophagogram and Videofluoroscopic oropharyngeal swallow study.
Creators: name: Azpeitia Armán, Francisco Javier
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Swallowing disorders
subject: Motility
subject: Contrast agent-oral
subject: Barium meal
subject: Conventional radiography
subject: Gastrointestinal tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To understand the utility of barium pharyngoesophagram and videofluoroscopic oropharyngeal swallow in the study of dysphagia To review the study protocols in order to learn how to perform the exams. To describe normal anatomy and normal imaging...
Klassenkampf, Befreiung oder Perspektive der Armen? Was von Gustavo Gutiérrez bleiben könnte. Ein Sammelband zur Theologie der Befreiung von Michelle Becka und Franz Gmainer-Pranzl
Creators: name: Ramminger, Michael
Publisher: name: Ethik und Gesellschaft
Year: 2023

description: Rezension von: Michelle Becka / Franz Gmainer-Pranzl (Hg.) (2021): Gustavo Gutiérrez: Theologie der Befreiung (1971/2021). Der bleibende Impuls eines theologischen Klassikers (Salzburger Theologische Studien interkulturell 21). Salzburg: Tyrolia. 360 S., ISBN 978-3-7022-3946-6, EUR 32,00.
description: Ethik und Gesellschaft, Nr. 1 (2022): Wohnvermögen
Classical Heisenberg and planar spin models on the windmill lattice
Creators: name: Jeevanesan, Bhilahari
name: Orth, Peter P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the classical Heisenberg and planar (XY) models on the windmill lattice. The windmill lattice is formed out of two widely occurring lattice geometries: a triangular lattice is coupled to its dual honeycomb lattice. Using a combination of iterative minimization, heat-bath Monte Carlo simulations and analytical calculations, we determine the complete ground state phase diagram of both models and find the exact energies of the phases. The phase diagram shows a rich phenomenology due to competing interactions and hosts, in addition to collinear and various coplanar phases, also intricate non-coplanar phases. We briefly outline different paths to an experimental realization of these spin models. Our extensive study provides a starting point for the investigation of quantum and thermal fluctuation effects.
description: 16 pages, 13 figures
title: Post-graduate course in interpreting and reporting skeletal images for radiographers in Norway, experiences from a collaboration project.
Creators: name: Myklebust, Aud Mette
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Professional issues
subject: Conventional radiography
subject: Education
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Learning objective: To facilitate radiographers’ post-graduate education in interpreting and reporting skeletal x-rays, by collaboration between three institution of higher education in...
Theologie als Hashtag. Neuere Sammelbände zum Verhältnis von Theologie, Ethik, Künstlicher Intelligenz und Digitalisierung.
Creators: name: Klinge, Hendrik
Publisher: name: Ethik und Gesellschaft
Year: 2023

description: Rezension von: Wolfgang Beck / Ilona Nord / Joachim Valentin (2019): Theologie und Digitalität. Ein Kompendium, Freiburg i.Br.: Herder. 524 S., ISBN 978-3-451-38849-1, EUR 39,00. Gotlind Ulshöfer / Peter G. Kirchschläger / Markus Huppenbauer (2021): Digitalisierung aus theologischer und ethischer Perspektive. Konzeptionen – Anfragen – Impulse, Baden Baden: Nomos. 310 S., ISBN 978-3-8487-8009-9, EUR 42,00. Benjamin Held / Frederike van Oorschot (2021): Digitalisierung. Neue Technik – neue Ethik?, F-E-S-T Forschung 1, Heidelberg: heiBOOKS. 269 S., ISBN 978-3-948083-47-2, EUR 27,90 (Open Access)
description: Ethik und Gesellschaft, Nr. 1 (2022): Wohnvermögen
Search for heavy resonances and quantum black holes in e$μ$, e$τ$, and $μτ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search is reported for heavy resonances and quantum black holes decaying into e$μ$, e$τ$, and $μτ$ final states in proton-proton collision data recorded by the CMS experiment at the CERN LHC during 2016-2018 at $\sqrt{s}$ = 13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The e$μ$, e$τ$, and $μτ$ invariant mass spectra are reconstructed, and no evidence is found for physics beyond the standard model. Upper limits are set at 95% confidence level on the product of the cross section and branching fraction for lepton flavor violating signals. Three benchmark signals are studied: resonant $τ$ sneutrino production in $R$ parity violating supersymmetric models, heavy Z' gauge bosons with lepton flavor violating decays, and nonresonant quantum black hole production in models with extra spatial dimensions. Resonant $τ$ sneutrinos are excluded for masses up to 4.2 TeV in the e$μ$ channel, 3.7 TeV in the e$τ$ channel, and 3.6 TeV in the $μτ$ channel. A Z' boson with lepton flavor violating couplings is excluded up to a mass of 5.0 TeV in the e$μ$ channel, up to 4.3 TeV in the e$τ$ channel, and up to 4.1 TeV in the $μτ$ channel. Quantum black holes in the benchmark model are excluded up to the threshold mass of 5.6 TeV in the e$μ$ channel, 5.2 TeV in the e$τ$ channel, and 5.0 TeV in the $μτ$ channel. In addition, model-independent limits are extracted to allow comparisons with other models for the same final states and similar event selection requirements. The results of these searches provide the most stringent limits available from collider experiments for heavy particles that undergo lepton flavor violating decays.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-19-014 (CMS Public Pages)
Fairly Allocating Many Goods with Few Queries
Creators: name: Oh, Hoon
name: Procaccia, Ariel D.
name: Suksompong, Warut
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We investigate the query complexity of the fair allocation of indivisible goods. For two agents with arbitrary monotonic utilities, we design an algorithm that computes an allocation satisfying envy-freeness up to one good (EF1), a relaxation of envy-freeness, using a logarithmic number of queries. We show that the logarithmic query complexity bound also holds for three agents with additive utilities, and that a polylogarithmic bound holds for three agents with monotonic utilities. These results suggest that it is possible to fairly allocate goods in practice even when the number of goods is extremely large. By contrast, we prove that computing an allocation satisfying envy-freeness and another of its relaxations, envy-freeness up to any good (EFX), requires a linear number of queries even when there are only two agents with identical additive utilities.
description: A preliminary version appears in the 33rd AAAI Conference on Artificial Intelligence (AAAI), 2019
title: Multimodal Evaluation of the Colon in the Acute and Chronic setting: A Trainee’s Guide
Creators: name: León Guerrero, Ericka
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Infection
subject: Cancer
subject: Colonography CT
subject: Barium enema
subject: Fluoroscopy
subject: CT
subject: Gastrointestinal tract
subject: Abdomen
subject: CT-Colonography

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To learn an algorithm- based approach to the colon diseases. Determine the best imaging protocol based on different clinical scenarios. Key differential diagnostic points will be highlighted in the discussion of each case. 96 Normal 0 21 false false...
Wanderndes Gottesvolk? Mariano Barbato über die Migrationspolitik von Papst Franziskus
Creators: name: Stümke, Volker
Publisher: name: Ethik und Gesellschaft
Year: 2023

description: Rezension von: Mariano Barbato (2020): »Die Mauer ist keine Lösung«. Die Migrationspolitik von Papst Franziskus, Frankfurt a.M. / New York: Campus. 305 S., ISBN 978-3-593-51282-2, EUR 39,95.
description: Ethik und Gesellschaft, Nr. 1 (2022): Wohnvermögen
title: Role of CT in identifying adrenal veins before selective venous sampling
Creators: name: Palomares Morales, Aitana
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Anatomy
subject: Veins / Vena cava
subject: CT
subject: Catheter venography
subject: Normal variants
subject: Sampling
subject: Endocrine disorders

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe how CT is useful in identifying adrenal veins and its anatomic variations in order to guide selective adrenal venous...
A new 7′,9-epoxylignan from the stems of Salacia chinensis
Creators: name: Nguyen, Nhan T.
name: Duong, Truc T. T.
name: Dang, Phu H.
name: Nguyen, Hai X.
name: Le, Tho H.
name: V., Truong N.
name: Le, Thinh D.
name: Tran, Tu H.
name: Nguyen, Mai T. T.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
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: Developmental Biology
subject: Cancer

description: Bioactivity-guided isolation of the CHCl3-soluble fraction of the stems of Salacia chinensis L. (Celastraceae) was carried out to obtain a new 7′,9-epoxylignan (1) and three 7,9′:7′,9-diepoxylignans (2–4). The absolute configuration of 1 was elucidated based on NMR and ECD spectroscopic data interpretation. All isolated lignans showed intermediate α-glucosidase inhibitory activity with the IC50 values ranging from 28.5 to 85.6 µM.
Random vector and matrix and vector theories: a renormalization group approach
Creators: name: Zinn-Justin, Jean
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Random matrices in the large N expansion and the so-called double scaling limit can be used as toy models for quantum gravity: 2D quantum gravity coupled to conformal matter. This has generated a tremendous expansion of random matrix theory, tackled with increasingly sophisticated mathematical methods and number of matrix models have been solved exactly. However, the somewhat paradoxical situation is that either models can be solved exactly or little can be said. Since the solved models display critical points and universal properties, it is tempting to use renormalization group ideas to determine universal properties, without solving models explicitly. Initiated by Brézin and Zinn-Justin, the approach has led to encouraging results, first for matrix integrals and then quantum mechanics with matrices, but has not yet become a universal tool as initially hoped. In particular, general quantum field theories with matrix fields require more detailed investigations. To better understand some of the encountered difficulties, we first apply analogous ideas to the simpler O(N) symmetric vector models, models that can be solved quite generally in the large N limit. Unlike other attempts, our method is a close extension of Brézin and Zinn-Justin. Discussing vector and matrix models with similar approximation scheme, we notice that in all cases (vector and matrix integrals, vector and matrix path integrals in the local approximation), at leading order, non-trivial fixed points satisfy the same universal algebraic equation, and this is the main result of this work. However, its precise meaning and role have still to be better understood.
Minimal scenario facet Bell inequalities for multi-qubit states
Creators: name: Das, Arpan
name: Datta, Chandan
name: Agrawal, Pankaj
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Facet inequalities play an important role in detecting the nonlocality of a quantum state. The number of such inequalities depends on the Bell test scenario. With the increase in the number of parties, measurement outcomes, or/and the number of measurement settings, there are more nontrivial facet inequalities. For several Bell scenarios, by involving two dichotomic measurement settings for two parties and one dichotomic measurement by other parties, we show that the local polytope has only one nontrivial facet. For three parties, we have three variants of this inequality, depending upon which party is doing one dichotomic measurement. This measurement scenario for a multipartite state may be considered as the minimal scenario involving multipartite correlations that can detect nonlocality. We show that this inequality is violated by all generalized GHZ states. Being the only facet Bell inequality, this inequality is also violated by any entangled three-qubit pure state. We also show that for noisy W states, our inequality is more effective than the well-known Mermin inequality.
description: 17 pages, 4 figures
Open Research Data workshop @Università della Svizzera italiana
Creators: name: Sarman, Igor
Publisher: name: Zenodo
Year: 2022
Subjects: Università della Svizzera italiana
Open Research Data
Research Data Management
Swiss National ORD Strategy

description: Slides from the workshop dedicated to Open Research Data organized by Università della Svizzera italiana (USI) that was held on September 15, 2022, in Lugano (Switzerland). The event was aimed to all researchers of the academic community of USI and had a mixed structure, with plenary sessions as well as parallel working groups dedicated to major ORD-related themes. The event was led by internal as well as external experts in the field.
Eyes in the sky: Interactions between AGB winds and the interstellar magnetic field
Creators: name: van Marle, A. J.
name: Cox, N. L. J.
name: Decin, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We aim to examine the role of the interstellar magnetic field in shaping the extended morphologies of slow dusty winds of Asymptotic Giant-branch (AGB) stars in an effort to pin-point the origin of so-called eye shaped CSE of three carbon-rich AGB stars. In addition, we seek to understand if this pre-planetary nebula (PN) shaping can be responsible for asymmetries observed in PNe. Hydrodynamical simulations are used to study the effect of typical interstellar magnetic fields on the free-expanding spherical stellar winds as they sweep up the local interstellar medium (ISM). The simulations show that typical Galactic interstellar magnetic fields of 5 to 10 muG, are sufficient to alter the spherical expanding shells of AGB stars to appear as the characteristic eye shape revealed by far-infrared observations. The typical sizes of the simulated eyes are in accordance with the observed physical sizes. However, the eye shapes are of transient nature. Depending on the stellar and interstellar conditions they develop after 20,000 to 200,000yrs and last for about 50,000 to 500,000 yrs, assuming that the star is at rest relative to the local interstellar medium. Once formed the eye shape will develop lateral outflows parallel to the magnetic field. The "explosion" of a PN in the center of the eye-shaped dust shell gives rise to an asymmetrical nebula with prominent inward pointing Rayleigh-Taylor instabilities. Interstellar magnetic fields can clearly affect the shaping of wind-ISM interaction shells. The occurrence of the eyes is most strongly influenced by stellar space motion and ISM density. Observability of this transient phase is favoured for lines-of-sight perpendicular to the interstellar magnetic field direction. The simulations indicate that shaping of the pre-PN envelope can strongly affect the shape and size of PNe.
description: Accepted for publication in A&A. Final version will contain animated results
title: The role of ultrasound in the assessment of implant materials in the treatment of female pelvic floor dysfunction.
Creators: name: Aparisi Gomez, Pilar
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Pelvic floor dysfunction
subject: Diagnostic procedure
subject: Ultrasound
subject: Urinary Tract / Bladder
subject: Pelvis
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -To illustrate the different surgical techniques used to correct the different types of pelvic floor dysfunction, with a special attention in the use of implant materials. -To describe the indications of the different imaging techniques to assess...
title: Grading system for acute appendicitis using CT scan: imagenological characterization and its surgical and anatomopathological correlation.
Creators: name: Peña Saravia, Jhon
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Obstruction / Occlusion
subject: Inflammation
subject: Acute
subject: Contrast agent-oral
subject: Contrast agent-intravenous
subject: Image manipulation / Reconstruction
subject: CT-High Resolution
subject: CT
subject: Gastrointestinal tract
subject: Emergency
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. Describe the frequency of presentation of the different stages of acute appendiceal disease. 2. Identify the key characteristics of CT images for the diagnosis of the different stages of acute appendicitis and their surgical and...
Fractional analysis of dichloromethane extract of Scutellaria araxensis Grossh root and shoot by HPLC-PDA-ESI-MSn
Creators: name: Gharari, Zahra
name: Bagheri, Khadijeh
name: Sharafi, Ali
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: Scutellaria araxensis is a well-known ethnobotanical herb for the treatment of various diseases in Iranian traditional medicine. In this study, dichloromethanolic fraction of partitioned methanol root and shoot extract was analysed by silica gel column chromatography, thin layer chromatography and high-performance liquid chromatography combined with photodiode-array detector, and coupled to electrospray ionization with Q-Exactive Orbitrap mass spectrometry (HPLC-PDA-ESI-MSn) in positive ion mode. Metabolites were tentatively characterized by comparing their mass spectrometry spectra with those of bibliographic data. A total of 11 flavonoids were identified from different fractions. Results showed that root and shoot produced very similar flavone patterns characterized by the presence of baicalein, tricin, tenaxin I, tenaxin II, skullcapflavon II, chrysin, wogonin and isorhamnetin. Norwogonin and apigenin-7-glucoside were identified only from shoot. Remarkably, Tenaxin I, II, tricin, apigenin-7-glucoside and norwogonin were tentatively profiled as new compounds for the first time from S. araxensis formula.
Distributions of molecules in the circumnuclear disk and surrounding starburst ring in the Seyfert galaxy NGC 1068 observed with ALMA
Creators: name: Takano, Shuro
name: Nakajima, Taku
name: Kohno, Kotaro
name: Harada, Nanase
name: Herbst, Eric
name: Tamura, Yoichi
name: Izumi, Takuma
name: Taniguchi, Akio
name: Tosaki, Tomoka
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Sensitive observations with ALMA allow astronomers to observe the detailed distributions of molecules with relatively weak intensity in nearby galaxies. In particular, we report distributions of several molecular transitions including shock and dust related species ($^{13}$CO $J$ = 1--0, C$^{18}$O $J$ = 1--0, $^{13}$CN $N$ = 1--0, CS $J$ = 2--1, SO $J_N$ = 3$_2$--2$_1$, HNCO $J_{Ka,Kc}$ = 5$_{0,5}$--4$_{0,4}$, HC$_3$N $J$ = 11--10, 12--11, CH$_3$OH $J_K$ = 2$_K$--1$_K$, and CH$_3$CN $J_K$ = 6$_K$--5$_K$) in the nearby Seyfert 2 galaxy NGC 1068 observed with the ALMA early science program. The central $\sim$1 arcmin ($\sim$4.3 kpc) of this galaxy was observed in the 100 GHz region covering $\sim$96--100 GHz and $\sim$108--111 GHz with an angular resolution of $\sim4"\times2"$ (290 pc$\times$140 pc) to study the effects of an active galactic nucleus and its surrounding starburst ring on molecular abundances. Here, we present images and report a classification of molecular distributions into three main categories: (1) Molecules concentrated in the circumnuclear disk (CND) (SO $J_N$ = 3$_2$--2$_1$, HC$_3$N $J$ = 11--10, 12--11, and CH$_3$CN $J_K$ = 6$_K$--5$_K$), (2) Molecules distributed both in the CND and the starburst ring (CS $J$ = 2--1 and CH$_3$OH $J_K$ = 2$_K$--1$_K$), (3) Molecules distributed mainly in the starburst ring ($^{13}$CO $J$ = 1--0 and C$^{18}$O $J$ = 1--0). Since most of the molecules such as HC$_3$N observed in the CND are easily dissociated by UV photons and X-rays, our results indicate that these molecules must be effectively shielded. In the starburst ring, the relative intensity of methanol at each clumpy region is not consistent with those of $^{13}$CO, C$^{18}$O, and CS. This difference is probably caused by the unique formation and destruction mechanisms of CH$_3$OH.
description: 21 pages, 4 figures, accepted for publication to PASJ
title: Assessment of observer and sequence variability in measuring hepatocellular carcinoma on Gadoxetic acid enhanced magnetic resonance imaging
Creators: name: LEE, Kam Ho
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Liver
subject: Oncology
subject: CT
subject: MR
subject: Imaging sequences
subject: Computer Applications-Detection, diagnosis
subject: Contrast agent-intravenous

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Hepatocellular Carcinoma (HCC) is the third leading cancer deaths worldwide accounting for 700,000 deaths annually (1). Currently, cross-sectional imaging is the investigation of choice for characterisation of focal liver lesions and diagnosis of...
Optimal method for reconstructing polychromatic maps from broadband observations with an asymmetric antenna pattern
Creators: name: Cantrall, Brianna
name: Quinn, Solomon
name: Bunn, Emory F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Broadband time-ordered data obtained from telescopes with a wavelength-dependent, asymmetric beam pattern can be used to extract maps at multiple wavelengths from a single scan. This technique is especially useful when collecting data on cosmic phenomena such as the Cosmic Microwave Background (CMB) radiation, as it provides the ability to separate the CMB signal from foreground contaminants. We develop a method to determine the optimal linear combinations of wavelengths (``colors'') that can be reconstructed for a given telescope design and the number of colors that are measurable with high signal-to-noise ratio. The optimal colors are found as eigenvectors of a matrix derived from the inverse noise covariance matrix. When the telescope is able to scan the sky isotropically, it is useful to transform to a spherical harmonic basis, in which this matrix has a particularly simple form. We propose using the optimal colors determined from the isotropic case even when the actual scanning pattern is not isotropic (e.g., covers only part of the sky). We perform simulations showing that maps in multiple colors can be reconstructed accurately from both full-sky and partial-sky scans. Although the original motivation for this research comes from mapping the CMB, this method of polychromatic map-making will have broader applications throughout astrophysics.
Semi-invariant Riemannian metrics in hydrodynamics
Creators: name: Bauer, Martin
name: Modin, Klas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58B10, 35Q31

description: Many models in mathematical physics are given as non-linear partial differential equation of hydrodynamic type; the incompressible Euler, KdV, and Camassa--Holm equations are well-studied examples.A beautiful approach to well-posedness is to go from the Eulerian to a Lagrangian description.Geometrically it corresponds to a geodesic initial value problem on the infinite-dimensional group of diffeomorphisms with a right invariant Riemannian metric. By establishing regularity properties of the Riemannian spray one can then obtain local, and sometimes global, existence and uniqueness results. There are, however, many hydrodynamic-type equations, notably shallow water models and compressible Euler equations, where the underlying infinite-dimensional Riemannian structure is not fully right invariant, but still semi-invariant with respect to the subgroup of volume preserving diffeomorphisms. Here we study such metrics. For semi-invariant metrics of Sobolev $H^k$-type we give local and some global well-posedness results for the geodesic initial value problem. We also give results in the presence of a potential functional (corresponding to the fluid's internal energy). Our study reveals many pitfalls in going from fully right invariant to semi-invariant Sobolev metrics; the regularity requirements, for example, are higher. Nevertheless the key results, such as no loss or gain in regularity along geodesics, can be adopted.
description: 26 pages
title: Transcatheter embolisation of spontaneous bleeding of abdominal wall and retroperitoneal muscles: personal experience
Creators: name: Sachs, Camilla
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Interventional vascular
subject: Emergency
subject: Vascular
subject: CT-Angiography
subject: Catheter arteriography
subject: Diagnostic procedure
subject: Embolisation
subject: Haemorrhage

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Purpose of this work is to evaluate efficacy and safety of transcatheter embolization (TE) of spontaneous bleeding in the abdominal wall and retroperitoneal muscles and its relationship with anticoagulant/antiplatelet...
Analytical stresses of homogeneous and composite laminated non-prismatic beams under layerwise loading
Creators: name: Santos, Matheus Vilar Mota
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 40
subject: Engineering

description: Innovative engineering solutions often require lightweight, stiff structures to meet specific design criteria. Consequently, potential solutions comprise slender structural elements with optimised mass distributions made from a combination from materials often using composite laminates. Classical beam theory remains utilised to investigate the state of stress of non-prismatic slender structures, although adopted hypotheses are not appropriate for tapered beams, which behave differently from their prismatic counterparts. For example, the bending moment contributes to the shear stress, and specific equilibrium considerations govern layer interfaces and beam surfaces. Although widely accepted in beam theories, the classical assumption that external loads are reacted uniformly through the cross-section may need refinement to account for load cases where the load is applied to part of the cross-sectional area, e.g. beams subject to partial cross-sectional loading in prestressed concrete structures and partially-immersed slender structures subject to fluid interactions. The state-of-the-art limitations are addressed in this thesis by deriving a consistent stress recovery method for non-prismatic beams subject to layerwise loading. Analytical solutions are given for homogeneous materials, multilayered media and composite laminates. Cauchy stress equilibrium is invoked considering adequate equilibrium relations, boundary conditions and beam eccentricity effects. The developed theory is computationally efficient and accurate; hence it could be utilised as a benchmark solution for numerical methods and assessed in the early design stage.
title: Top air lesions in the neck
Creators: name: Carbullanca Toledo, Santiago
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Pathology
subject: Diagnostic procedure
subject: CT
subject: Head and neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To discuss the clinical manifestations and predisposing conditions of abnormal air in CT imaging of the head and neck. To be aware of its importance and to describe its characteristic radiologic features. To recognize normal air locations, typical...
Centrality Dependence of Particle Production in p--A collisions measured by ALICE
Creators: name: Toia, Alberica
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the centrality dependence of particle production in p-A collisions at sqrt(s_NN) = 5.02 TeV measured by the ALICE experiment, including the pseudo-rapidity and transverse momentum spectra, with a special emphasis on the event classification in centrality classes and its implications for the interpretation of the nuclear effects.
description: Proceedings of Quark Matter 2014 4 pages, 3 figures
D7.3 Dissemination strategy and activities – interim version
Creators: name: Costa, Ruben
name: Côrrea, Cláudio
Publisher: name: Zenodo
Year: 2022
Subjects: sentinelh2020
horizon2020
euprojects
exploitation
sustainability
managementplan
business
strategy
communication
cybersecurity
gdpr
compliance
security
innovation

description: Deliverable D7.3 - Dissemination strategy and activities – interim version is produced within Work Package 7 (Ecosystem building, Exploitation and sustainability management) of the SENTINEL Project, under Task 7.2, Dissemination and communication strategy to trigger awareness and new business opportunities.
Dissolving Metaphors in Peer-to-Peer Energy Trading: Towards a More Concrete Understanding of Metering, Legitimacy and Revenue Flows
Creators: name: de Villiers, Almero
name: Cuffe, Paul
Publisher: name: figshare
Year: 2022
Subjects: subject: 150201 Finance
subject: FOS: Economics and business

description: This is the conference paper and corresponding presentation published at 2022 IEEE 1st Global Emerging Technology Blockchain Forum: Blockchain & Beyond
When Do Envy-Free Allocations Exist?
Creators: name: Manurangsi, Pasin
name: Suksompong, Warut
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Multiagent Systems (cs.MA)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider a fair division setting in which $m$ indivisible items are to be allocated among $n$ agents, where the agents have additive utilities and the agents' utilities for individual items are independently sampled from a distribution. Previous work has shown that an envy-free allocation is likely to exist when $m=Ω(n\log n)$ but not when $m=n+o(n)$, and left open the question of determining where the phase transition from non-existence to existence occurs. We show that, surprisingly, there is in fact no universal point of transition---instead, the transition is governed by the divisibility relation between $m$ and $n$. On the one hand, if $m$ is divisible by $n$, an envy-free allocation exists with high probability as long as $m\geq 2n$. On the other hand, if $m$ is not "almost" divisible by $n$, an envy-free allocation is unlikely to exist even when $m=Θ(n\log n/\log\log n)$.
description: Appears in the 33rd AAAI Conference on Artificial Intelligence (AAAI), 2019
title: Radiation Dose and Image Quality Assessment of computed tomography-guided percutaneous needle biopsy: Utility of exposure angle-optimized half scanning in interventional-CT system
Creators: name: Takiguchi, Keisuke
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Interventional non-vascular
subject: Abdomen
subject: CT
subject: Dosimetry
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Computed tomograpic fluoroscopy (CTF) is a useful technique for interventional radiology (IVR) procedure. Real- time image reconstruction in CTF provides efficient and safe procedures. However, CTF could lead to increase radiation dose of...
Do feelings matter? On the correlation of affects and the self-assessed productivity in software engineering
Creators: name: Graziotin, Daniel
name: Wang, Xiaofeng
name: Abrahamsson, Pekka
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Background: software engineering research (SE) lacks theory and methodologies for addressing human aspects in software development. Development tasks are undertaken through cognitive processing activities. Affects (emotions, moods, feelings) have a linkage to cognitive processing activities and the productivity of individuals. SE research needs to incorporate affect measurements to valorize human factors and to enhance management styles. Objective: analyze the affects dimensions of valence, arousal, and dominance of software developers and their real-time correlation with their self-assessed productivity (sPR). Method: repeated measurements design with 8 participants (4 students, 4 professionals), conveniently sampled and studied individually over 90 minutes of programming. The analysis was performed by fitting a linear mixed- effects (LME) model. Results: valence and dominance are positively correlated with the sPR. The model was able to express about 38% of deviance from the sPR. Many lessons were learned when employing psychological measurements in SE and for fitting LME. Conclusion: this article demonstrates the value of applying psychological tests in SE and echoes a call to valorize the human, individualized aspects of software developers. It reports a body of knowledge about affects, their classification, their measurement, and the best practices to perform psychological measurements in SE with LME models.
description: 33 pages, 5 figures. Extension of arXiv:1306.1772 [cs.SE]. Published in Journal of Software: Evolution and Process (early view) at http://onlinelibrary.wiley.com/doi/10.1002/smr.1673/abstract
IRAG2 Interacts with IP3-Receptor Types 1, 2, and 3 and Regulates Intracellular Ca2+ in Murine Pancreatic Acinar Cells
Creators: name: Prüschenk, Sally
name: Majer, Michael
name: Schreiber, Rainer
name: Schlossmann, Jens
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: Ca2+ signaling; IP3R; IRAG; IRAG1; IRAG2; Jaw1; LRMP; pancreas; pancreatic acinar cells
subject: 570 Biowissenschaften, Biologie
subject: 615 Pharmazie

description: The inositol 1,4,5-triphosphate receptor-associated 2 (IRAG2) is also known as Jaw1 or lymphoid-restricted membrane protein (LRMP) and shares homology with the inositol 1,4,5-triphosphate receptor-associated cGMP kinase substrate 1 (IRAG1). IRAG1 interacts with inositol trisphosphate receptors (IP3 receptors /IP3R) via its coiled-coil domain and modulates Ca2+ release from intracellular stores. Due to the homology of IRAG1 and IRAG2, especially in its coiled-coil domain, it is possible that IRAG2 has similar interaction partners like IRAG1 and that IRAG2 also modulates intracellular Ca2+ signaling. In our study, we localized IRAG2 in pancreatic acinar cells of the exocrine pancreas, and we investigated the interaction of IRAG2 with IP3 receptors and its impact on intracellular Ca2+ signaling and exocrine pancreatic function, like amylase secretion. We detected the interaction of IRAG2 with different subtypes of IP3R and altered Ca2+ release in pancreatic acinar cells from mice lacking IRAG2. IRAG2 deficiency decreased basal levels of intracellular Ca2+, suggesting that IRAG2 leads to activation of IP3R under unstimulated basal conditions. Moreover, we observed that loss of IRAG2 impacts the secretion of amylase. Our data, therefore, suggest that IRAG2 modulates intracellular Ca2+ signaling, which regulates exocrine pancreatic function.
title: Vascular Complications in Pancreatitis
Creators: name: McQuade, Colin
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Embolism / Thrombosis
subject: Education and training
subject: Acute
subject: Embolisation
subject: Education
subject: Diagnostic procedure
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Pancreas
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: This exhibit aims to provide a pictorial exhibit outlining the radiological features of acute pancreatitis as well as some of the associated vascular complications. We will also provide examples of the role of interventional radiology in this...
title: E-fuels‘ worldwide production potential
Creators: name: Gavril, Jana
Publisher: name: TU Wien
Year: 2023
Subjects: subject: e-fuels
subject: synthetic fuels
subject: hydrogen
subject: carbon capture
subject: renewable electrical power

description: Hydrogen production together with carbon capture are two critical areas towards decarbonization and transition to net-zero from the current fossil fuel-based energy system. Currently some technical challenges and relatively high costs of these technologies are limiting factors for their wide-scale use in the short term. The main challenge in the mass-adoption of these technologies is the lack of the hydrogen- and CO2-compatible midstream (transport, pipelines, storage, etc.) and downstream (engines, turbines, etc.) infrastructure. The lack of compatible infrastructure can be partially offset by producing sustainable gaseous or liquid electro-fuels (e-fuels), which are produced via the electrolysis process converting water into hydrogen and oxygen using renewable electrical power followed by production technologies to integrate CO2, creating liquid e-fules.The nearly carbon-neutral liquid e-fuels derived from H2 and captured CO2 are attractive not only due to their compatibility with existing infrastructure and internal combustion engines in aviation, shipping, freight, etc., without requiring any modification to the engine or other equipment, but also due to the large market potential with long-term returns in view of their contribution in reducing carbon emissions from this sector. The commercial viability and possible applications of the Sabatier process, known as methanation, the Fischer-Tropsch and Methanol synthesis are analyzed together with the outcoming derivates from these different e-fuels production technological paths.The consideration of potential production site starts with a financially solid business case, so that the company/industry can continue to work profitably. Second thought must be given to the feedstock security and outlet markets, which imply compatibility with the existing global infrastructure and combustion engines and the possibility to mix the new fuel with existing fuels. This would allow immediate introduction and a continuous production capacity ramp-up.Finally, the environmental impact, land use and water management must be carefully assessed, enabling the region benefiting from a new production site without any potential environmental damage.