cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Autoresonance in oscillating systems with combined excitation and weak dissipation
Creators: name: Sultanov, Oskar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34C15, 34D05, 37B25, 37B55, 93D20

description: A mathematical model describing the initial stage of the capture into autoresonance for nonlinear oscillating systems with combined parametric and external excitation is considered. The solutions with unboundedly growing amplitude and limited phase mismatch correspond to the autoresonant capture. The paper investigates the existence, stability and bifurcations of such solutions in the presence of a weak dissipation in the system. Our technique is based on the study of particular solutions with power-law asymptotics at infinity and the construction of suitable Lyapunov functions.
description: 18 pages, 8 figures. arXiv admin note: substantial text overlap with arXiv:1907.07482
UNDERSTANDING ETHICAL CHALLENGES IN AI: A FOCUS ON CHATGPT
Creators: name: Emily, Jane Harrison
Publisher: name: noland journals
Year: 2024
Subjects: Artificial Intelligence, Chat GPT, Ethical Consideration, Machine Language, Technology

description: In our swiftly evolving landscape of artificial intelligence (AI), the discourse surrounding the ethical considerations of AI systems has taken centre stage. A pertinent exemplar in this domain is ChatGPT, an advanced AI model developed by Open AI. It encapsulates the remarkable potential and intricate challenges associated with endowing machines with the capability to engage in human-like conversations and problem-solving tasks. As AI progressively integrates into our daily lives, it becomes imperative to deliberate upon its societal impacts and equitable deployment meticulously. This initiative delves into the intricacies of ChatGPT, elucidating its operational mechanics while shedding light on the critical ethical quandaries that necessitate resolution. In the face of ever-changing technological paradigms, the ethical concerns entwined with AI continue to transform, urging a continuous reassessment of these challenges. This paper seeks to comprehensively investigate the operational framework of ChatGPT with a specific focus on privacy preservation, bias mitigation, and misinformation propagation. Beyond technical aspects, this exploration aspires to capture diverse perspectives from various stakeholders, ensuring a pluralistic incorporation of viewpoints. The overarching objective of this paper lies in fostering a nuanced understanding of the multifaceted ethical dilemmas intrinsic to AI, particularly as embodied by ChatGPT. This article aims to cultivate a shared comprehension of the ethical predicaments at hand by engaging AI developers, users, and policy-makers. As AI systems like ChatGPT progressively assume more substantial roles in our lives, formulating of judicious regulations becomes pivotal to harness its potential effectively while averting potential pitfalls. Delving into the realm of AI ethics transcends the purview of mere analysis; it embodies a collaborative attempt to harness the positive facets of AI for the collective benefit. This project aims to provide a platform for individuals inclined to delve into the ethical dimensions of AI, thereby ensconcing AI as a tool of empowerment orchestrated for the common good
Does crop diversification impact farm households` perceived current and future food insecurity? A case of smallholder farmers in Uganda
Creators: name: Mugisha, Johnny
name: Kisakye, Josephine
name: Ogenrwoth, Brian
name: Ahikiriza, Elizabeth
Publisher: name: Zenodo
Year: 2025
Subjects: crop diversification
risk aversion
food security

description: Crop diversification is one the strategies that farmers in rural Uganda have employed to improve their food production and consumption. However, it remains unclear whether farmers’ risk behaviour affects the decision to diversify crops and their perceived food security (current and future). This study assesses the influence of risk aversion on crop diversification and evaluates its influence on farmers’ ability to meet current and future needs. Data were collected from two districts in Uganda. The results of an ordered probit model showed that risk aversion positively and significantly influenced the level of crop diversification. On the contrary, membership in associations and age were negatively associated with crop diversification. Logit analysis results revealed that the level of diversification had no influence on farmers’ ability to meet their food needs. However, the type of crops grown influenced their perception of their ability to meet their food needs.
title: Eosinophilic granulomatosis with polyangiitis
Creators: name: Molinari, Andrea
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Chest imaging
subject: Lung
subject: Respiratory system
subject: CT
subject: Diagnostic procedure
subject: Clinical Cases

description: Clinical History: A 26-year-old male patient was evaluated with a recent onset of low-grade fever, cough and shortness of breath.The man is a baker, nonsmoker, allergic to some drugs and common allergens.
He suffered from bronchial asthma, eczema at hands and feet and nasal polyposis.
His past medical history showed a previous episode of pericarditis.

description: 26 years, male
Single-ion and exchange anisotropy in high-symmetry tetramer single molecule magnets
Creators: name: Klemm, Richard A.
name: Efremov, Dmitri V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For equal-spin $s_1$ tetramer single molecule magnets with ionic point groups $g=T_d, D_{4h}, D_{2d}, C_{4h}, C_{4v}$, and $S_4$, we write the group-invariant single-ion, Dzaloshinskii-Moriya, and symmetric anisotropic near-neighbor and next-nearest-neighbor exchange Hamiltonians using the respective local axial and azimuthal vector groups. The anisotropic exchange renormalized near-neighbor and next-nearest-neighbor isotropic exchange interactions are $\tilde{J}_g$ and $\tilde{J}_g'$. Using our exact, compact forms for the single-ion matrix elements, we evaluate the eigenstates of the full Hamiltonian to first order in the various interactions. There are two types of ferromagnetic (FM) and antiferromagnetic (AFM) tetramers. In Type I, $\tilde{J}_g'-\tilde{J}_g>0$, the tetramers act as two dimers with the maximal pair quantum numbers $s_{13}=s_{24}=2s_1$ at low temperature. Type II tetramers with $\tilde{J}_g'-\tilde{J}_g<0$ are frustrated, with minimal values of the pair quantum numbers $s_{13}$ and $s_{24}$ at low temperature. For both Type I and Type II AFM tetramers, we evaluate the first-order level-crossing inductions analytically for arbitary $s_1$, and illustrate the results for $s_1=1/2, 1, 3/2$. Accurate Hartree expressions for the thermodynamics, electron paramagnetic resonance (EPR) absorption and inelastic neutron scattering cross-section are given. A procedure to extract the effective microscopic parameters for Types I and II tetramers using EPR is given.
description: 27 pages, 10 figures, submitted to Phys. Rev. B
On viscid-inviscid interactions of a pair of bubbles rising near the wall
Creators: name: Maeda, Kazuki
name: Date, Masanobu
name: Sugiyama, Kazuyasu
name: Takagi, Shu
name: Matsumoto, Yoichiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Series of experiments on turbulent bubbly channel flows observed bubble clusters near the wall which can change large-scale flow structures. To gain insights into clustering mechanisms, we study the interaction of a pair of spherical bubbles rising in a vertical channel through combined experiments and modeling. Experimental imaging identifies that pairwise bubbles of 1.0 mm diameter take two preferred configurations depending on their mutual distance: side-by-side positions for a short distance ($S<5$) and nearly inline, oblique positions for a long distance ($S>5$), where $S$ is the mutual distance normalized by the bubble radius. In the model, we formulate the motions of pairwise bubbles rising at $Re=O(100)$. Analytical drag and lift, and semi-empirical, spatio-temporal stochastic forcing are employed to represent the mean acceleration and the fluctuation due to turbulent agitation, respectively. The model is validated against the experiment through comparing Lagrangian statistics of the bubbles. Simulations using this model identify two distinct timescales of interaction dynamics which elucidate the preferred configurations. For pairs initially in-line, the trailing bubble rapidly escapes from the viscous wake of the leading bubble to take the oblique position. Outside of the wake, the trailing bubble travels on a curve-line path with a slower velocity driven by potential interaction and horizontally approaches the leading bubble to become side-by-side. Moreover, statistical analysis identifies that the combination of the wake and the agitation can significantly accelerate the side-by-side clustering of in-line pairs. These results indicate positive contributions of liquid viscosity and turbulence to the formation of bubble clusters.
description: 29 pages, 18 figures
title: Cryptogenic organising pneumonia mimicking lung malignancy
Creators: name: Vella, Stephanie
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Chest imaging
subject: Lung
subject: Conventional radiography
subject: CT
subject: Biopsy
subject: Education
subject: Inflammation
subject: Neoplasia
subject: Clinical Cases

description: Clinical History: A 55-year-old female patient with a 60 pack-per-year smoking history, presented with a two-month history of dry cough and pleuritic chest pain. She denied febrile episodes, haemoptysis, dyspnoea or weight loss. Her sister had been diagnosed with lung cancer. Physical examination was unremarkable and blood showed elevated inflammatory markers.

description: 55 years, female
Gauge invariant sub-structures of tree-level double-emission exact QCD spin amplitudes
Creators: name: van Hameren, A.
name: Was, Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this note we discuss possible separations of exact, massive, tree-level spin amplitudes into gauge invariant parts. We concentrate our attention on processes involving two quarks entering a color- neutral current and, thanks to the QCD interactions, two extra external gluons. We will search for forms compatible with parton shower languages, without applying approximations or restrictions on phase space regions. Special emphasis will be put on the isolation of parts necessary for the construction of evolution kernels for individual splittings and to some degree for the running coupling constant as well. Our aim is to better understand the environment necessary to optimally match hard matrix elements with partons shower algorithms. To avoid complications and ambiguities related to regularization schemes, we ignore, at this point, virtual corrections. Our representation is quite universal: any color-neutral current can be used, in particular our approach is not restricted to vector currents only.
description: 27 pages, formula in section 5 corrected
title: A rare case of persistent hypophyseal canal with ectopic pituitary teratoma
Creators: name: S V, Priyanka
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Neuroradiology
subject: Abdomen
subject: CNS
subject: CT
subject: MR
subject: Clinical Cases

description: Clinical History: Our patient is a 21-year-old male patient who was referred from our otorhinology OPD with nasal obstruction & headache. Examination revealed normal external facial & neurologic examination with no evidence of pituitary insufficiency. Soft, nodular mass was seen in nasopharynx on local examination.

description: 21 years, male
Gravitational-wave asteroseismology with f-modes from neutron star binaries at the merger phase
Creators: name: Ng, Harry Ho-Yin
name: Cheong, Patrick Chi-Kit
name: Lin, Lap-Ming
name: Li, Tjonnie Guang Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational-wave signals from coalescing binary neutron stars can yield important information about the properties of nuclear-matter equation of state from the early part of the signal through tidal effects to the properties and oscillation frequencies of the merger product. We investigate a direct link between the properties of isolated neutron stars and their merger, by comparing the frequency of the fundamental oscillation mode ($f$-mode) of neutron stars with the gravitational-wave frequency associated with the merger of two neutron stars. We calculate the quadrupolar ($l=2$) $f$-mode oscillation ($f_{2f}$) of non-rotating and rotating neutron stars using a nonlinear hydrodynamics code in the conformally-flat approximation and obtain the gravitational-wave frequency associated with the peak amplitude ($f_{\rm max}$) of binary-neutron stars from a set of publicly available simulations. We find that $f_{\rm max}$ and $f_{2f}$ differ by about 1\%, on average, across forty-five equal-mass systems with different total mass and equations of state. Assuming that the gravitational-wave frequency is still approximately equal to twice the orbital frequency $Ω$ near the merger, the result indicates that the condition for tidal resonance $|m|Ω= f_{2f}$ is satisfied to high accuracy near the merger, where $m=2$ is the azimuthal quantum number. Moreover, the well established universal relation between $f_{\rm max}$ and the tidal deformability of equal-mass binary systems can now be explained by a similar relation between $f_{2f}$ and the tidal deformability of isolated neutron stars, which has been demonstrated to be associated with the nearly incompressible properties of neutron stars. Our findings suggest that it is possible to relate the gravitational-wave signal at the merger of a binary neutron star system directly to the fundamental oscillation modes and the mass ratio.
title: Pneumoparotid
Creators: name: S, Shanmuga Jayanthan
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Head & neck imaging
subject: Salivary glands
subject: CT
subject: Clinical Cases

description: Clinical History: An 11-year old boy presented with recurrent painless bilateral cheek swelling for 8 months. Despite multiple courses of antibiotics, the swelling continued to re-occur. On examination, enlargement of right parotid gland noted. In addition, he had crepitus over the right parotid region. His blood counts were within normal limits.

description: 11 years, male
Zeptosecond Birth Time Delay in Molecular Photoionization
Creators: name: Grundmann, Sven
name: Trabert, Daniel
name: Fehre, Kilian
name: Strenger, Nico
name: Pier, Andreas
name: Kaiser, Leon
name: Kircher, Max
name: Weller, Miriam
name: Eckart, Sebastian
name: Schmidt, Lothar Ph. H.
name: Trinter, Florian
name: Jahnke, Till
name: Schöffler, Markus S.
name: Dörner, Reinhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Photoionization is one of the fundamental light-matter interaction processes in which the absorption of a photon launches the escape of an electron. The time scale of the process poses many open questions. Experiments found time delays in the attosecond ($10^{-18}$ s) domain between electron ejection from different orbitals, electronic bands, or in different directions. Here, we demonstrate that across a molecular orbital the electron is not launched at the same time. The birth time rather depends on the travel time of the photon across the molecule, which is 247 zeptoseconds ($10^{-21}$ s) for the average bond length of H$_2$. Using an electron interferometric technique, we resolve this birth time delay between electron emission from the two centers of the hydrogen molecule.
title: Early imaging findings of sickle cell bone infarcts in the mandible
Creators: name: Walker, Edward
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Head & neck imaging
subject: Head and neck
subject: Musculoskeletal bone
subject: CT
subject: MR
subject: Haematologic diseases
subject: Ischaemia / Infarction
subject: Clinical Cases

description: Clinical History: A 22-year-old male patient with known sickle cell disease presented with general malaise, right jaw pain and trismus. Clinical assessment revealed right lower lip paraesthesia, oral opening limited to 0.5cm and raised inflammatory markers. A working diagnosis of sickle cell crisis was made, with trismus of unknown origin.

description: 22 years, male
title: Left vocal cord paralysis most probable due to a thoracic aortic aneurysm: Ortner’s syndrome
Creators: name: Lavaerts, Michel
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Head & neck imaging
subject: Anatomy
subject: Vascular
subject: CT
subject: Aneurysms
subject: Clinical Cases

description: Clinical History: A 72-year-old obese male patient with hypertension, diabetes and a history of smoking presented to the otolaryngologist with persistent hoarseness after a severe common cold two weeks ago. The hoarseness worsened during the day. No other complaints were present.

description: 72 years, male
title: Insufficiency vertical fracture of the proximal femur after bisphosphonate treatment
Creators: name: Gitto, Salvatore
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Musculoskeletal system
subject: MR
subject: Clinical Cases

description: Clinical History: A 63-year-old woman presented with one-and-a-half-year history of avascular necrosis of both femoral heads under bisphosphonate treatment and complaint of left-hip atraumatic pain. Pain has been present for several months and caused the patient to refrain from work. The patient also had six-year history of seronegative arthritis.

description: 63 years, female
MAXMUD TOROBIY QO'ZG'OLONI SHARQ TARIXCHILARI ASARLARIDA
Creators: name: Oblayeva, Tursunoy
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqola Mahmud Torobiy qoʻzgʻoloni  Ato Malik Juvayniyning “Ta’rix-i Jahon-kushoy”  va Mirzo Ulug’bekning “Tarixi arba ulus” asarlarini o’rgangan holda yozildi.
Pulse energy distribution for RRAT J0139+33 according to observations at the frequency 111 MHz
Creators: name: Brylyakova, E. A.
name: Tyul'bashev, S. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences
subject: 85.05

description: Using five year monitoring observations, we did a blind search for pulses for rotating radio transient (RRAT) J0139+33 and PSR B0320+39. At the interval \pm 1.5m of the time corresponding to the source passing through the meridian, we detected 39377 individual pulses for the pulsar B0320+39 and 1013 pulses for RRAT J0139+33. The share of registered pulses from the total number of observed periods for the pulsar B0320+39 is 74%, and for the transient J0139+33 it is 0.42%. Signal-to-noise ratio (S/N) for the strongest registered pulses is approximately equal to: S/N = 262 (for B0320+39) and S/N = 154 (for J0139+33). Distributions of the number of detected pulses in S/N units for the pulsar and for the rotating transient are obtained. The distributions could be approximated with a lognormal and power dependencies. For B0320+39 pulsar, the dependence is lognormal, it turns into a power dependence at high values of S/N, and for RRAT J0139+33, the distribution of pulses by energy is described by a broken (bimodal) power dependence with an exponent of about 0.4 and 1.8 (S/N < 19 and S/N > 19). We have not detected regular (pulsar) emission of J0139+33. Analysis of the obtained data suggests that RRAT J0139+33 is a pulsar with giant pulses.
description: 6 pages, 5 figures; Astronomy and Astrophysics (accepted)
Dufour and Soret effects in a magnetized and non-magnetized plasma
Creators: name: Garcia-Colin, L. S.
name: Garcia-Perciante, A. L.
name: Sandoval-Villalbazo, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: It is well known that magnetic fields affect heat conduction in a different way in the direction parallel and perpendicular to the field. In this paper a formal derivation of this phenomenon and analytical expressions for the transport coefficients based in the Boltzmann equation are presented. Moreover, the Dufour effect or diffusion thermo effect is usually ignored in plasma transport theory. In this work, analytic expressions for the parallel and perpendicular thermal conductivities as well as the coefficients for both the thermal diffusion, or Soret, effect and the Dufour effect are formally derived. It is also shown how the heat conduction in the perpendicular direction decreases with increasing magnetic field and how in both directions the diffusion thermo effect is significant compared to thermal conduction. Other aspects of this work are also emphasized.
description: LaTex, 5 figures
Phase field modeling of wetting on structured surfaces
Creators: name: Luo, Kaifu
name: Kuittu, Mikko-Pekka
name: Tong, Chaohui
name: Majaniemi, Sami
name: Ala-Nissila, Tapio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the dynamics and equilibrium profile shapes of contact lines for wetting in the case of a spatially inhomogeneous solid wall with stripe defects. Using a phase-field model with conserved dynamics, we first numerically determine the contact line behavior in the case of a stripe defect of varying width. For narrow defects, we find that the maximum distortion of the contact line and the healing length are related to the defect width, while for wide defects, they saturate to constant values. This behavior is in quantitative agreement with experimental data. In addition, we examine the shape of the contact line between two stripe defects as a function of their separation. Using the phase-field model, we also analytically estimate the contact line configuration, and find good qualitative agreement with the numerical results.
description: 25 pages, 8 figures
Qualitätsvolle Innenentwicklung in Zürich, Analyse des Verhältnisses zwischen formellen und informellen Planungsinstrumenten in Zürich und Handlungsempfehlung für den Einsatz informeller Instrumente und Partizipation
Creators: name: Hol, Dag
Publisher: name: Zenodo
Year: 2023

description: Einer der wichtigsten Hebel zur Erreichung der nachhaltigen Entwicklung ist die Innenverdichtung.Das Schweizer Planungssystem legt auf Ebene des Bundes die entsprechenden Ziele fest,die auf den verschiedenen Regierungsebenen (Kanton, Gemeinde) im Rahmen von Richtplänenbehördenverbindlich festgelegt werden. Die Stadt Zürich hat im Rahmen des kommunalen RichtplansGebiete zur Innenverdichtung festgelegt. Die Innenverdichtung betrifft eine Vielzahl vonIndividuen, zumal die Umwandlung von grossen (unbewohnten) Industriearealen in Zürich weitgehendabgeschlossen ist und die Verdichtung zunehmend in bereits bebautem Gebiet stattfindet.Es stellt sich somit die Frage: «Wer entscheidet wie sich die Stadt verändert?». Bezüglich derSiedlungsplanung enthält die UNO-Agenda 2030 «Nachhaltige Entwicklung» das Ziel der partizipatorischenSiedlungsplanung und – steuerung. Das Gesetz schreibt die Mitwirkung der Bevölkerungin «geeigneter» Weise bei Planungen vor. Die vorliegende Arbeit untersucht einerseits dieArt und Weise, wie die Stadt Zürich mit dem kommunale Richtplan qualitative Ziele in der Siedlungsentwicklungsichern will und andererseits, wie der Stadtumbau konkret vollzogen wird.Welche Akteure werden auf welche Art und Weise involviert? Wie sieht das System der «Governance» in der Stadt Zürich aus? Wie greifen formelle und informelle Planungsinstrumenten ineinander?Anhand der Analyse der institutionellen Rahmenbedingungen auf übergeordneter Ebeneund von Fallbeispielen auf lokaler Ebene (case-studies) wird das Handeln der Stadtverwaltungbezüglich des Einsatzes von partizipativen Elementen in der Planung untersucht. Die Analysezeigt, dass das Konzept der «Kollaborativen Planung» in abgestuftem Umfang von der Stadtverwaltungeingesetzt wird. Aus der Analyse werden Handlungsempfehlungen zu Handen der Stadtverwaltungabgeleitet, die auf eine Erhöhung der Transparenz des Verwaltungshandelns abzielen,um den Stadtumbau noch stärker demokratisch zu verankern und an die lokalen Bedürfnisseanzupassen.Das vorliegende Dokument ist eine Einzelarbeit im Rahmen der Weiterbildungsprogramme inRaumplanung der ETH Zürich. Erkenntnisse und Schlussfolgerungen müssen sich nicht zwingendmit der Haltung der verantwortlichen Referentinnen und Referenten sowie der ETH Zürich decken.
A Magnetic Reconnection model for Hot Explosions in the Cool Atmosphere of the Sun
Creators: name: Ni, Lei
name: Chen, Yajie
name: Peter, Hardi
name: Tian, Hui
name: Lin, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: UV bursts and Ellerman bombs are transient brightenings observed in the low solar atmospheres of emerging flux regions. Observations have discovered the cospatial and cotemporal EBs and UV bursts, and their formation mechanisms are still not clear. The multi-thermal components with a large temperature span in these events challenge our understanding of magnetic reconnection and heating mechanisms in the low solar atmosphere. We have studied magnetic reconnection between the emerging and background magnetic fields. The initial plasma parameters are based on the C7 atmosphere model. After the current sheet with dense photosphere plasma is emerged to $0.5$ Mm above the solar surface, plasmoid instability appears. The plasmoids collide and coalesce with each other, which makes the plasmas with different densities and temperatures mixed up in the turbulent reconnection region. Therefore, the hot plasmas corresponding to the UV emissions and colder plasmas corresponding to the emissions from other wavelenghts can move together and occur at about the same height. In the meantime, the hot turbulent structures basically concentrate above $0.4$ Mm, whereas the cool plasmas extend to much lower heights to the bottom of the current sheet. These phenomena are consistent with the observations of Chen et al. 2019, ApJL. The synthesized Si IV line profiles are similar to the observed one in UV bursts, the enhanced wing of the line profiles can extend to about $100$ km s$^{-1}$. The differences are significant among the numerical results with different resolutions, which indicate that the realistic magnetic diffusivity is crucial to reveal the fine structures and realistic plasmas heating in these reconnection events. Our results also show that the reconnection heating contributed by ambipolar diffusion in the low chromosphere around the temperature minimum region is not efficient.
title: Anterior urethra mucosal dissection and contrast medium urethro-venous intravasation
Creators: name: Vaccher, Filippo
Publisher: name: EURORAD
Year: 2019
Subjects: subject: Uroradiology & genital male imaging
subject: Pelvis
subject: Urinary Tract / Bladder
subject: Veins / Vena cava
subject: CT
subject: Fluoroscopy
subject: Complications
subject: Cystography / Uretrography
subject: Diagnostic procedure
subject: Clinical Cases

description: Clinical History: An 87-year-old man with a history of benign prostatic hyperplasia (BPH), nephrolithiasis and bladder lithiasis was diagnosed with lower limb acute ischaemia.  After several failed attempts of pre-operative catheterisation, a suprapubic cystostomy was performed. The urethral obstruction was evaluated with retrograde urethrography (RUG). The patient complained chronic weak stream micturition and urinary sediment.

description: 87 years, male
Structural and dynamic analysis of oligosaccharide binding by CBDn1
Creators: name: Johnson, Philip Edward
Publisher: name: University of British Columbia
Year: 2009

description: This thesis describes the biophysical and structural characterization of CBDN1, the aminoterminal cellulose-binding domain (CBD) from the Cellulomonas fimi (β-1,4-glucanase CenC. Heteronuclear multidimensional nuclear magnetic resonance (NMR) methods were used to determine the three dimensional structure of CBDN1 in the presence of saturating amounts of cellotetraose. It was found that CBDN1 is composed of 10 β-strands, folded into two antiparallel β-sheets with the topology of a jelly-roll β-sandwich. The dominant feature of the CBDN1 structure is a cleft which runs along the length of one face of the molecule. On the basis of perturbations of the NMR spectrum of CBDN1 due to the addition of sugar, it was shown that CBDN1 binds soluble cellooligosaccharides within the cleft. Intermolecular nuclear Overhauser enhancements (NOEs) between residues in the cleft and the bound sugar confirmed that this face is responsible for ligand binding. Association constants, determined from the dependence of the amide ¹H and 15N chemical shifts upon added sugar, were found to increase with increasing sugar length, reaching a maximum at a ligand length of five glucose units. This corresponds approximately to the length of the binding cleft. The binding cleft is composed of a strip of hydrophobic residues, flanked by hydrophilic residues. It is proposed that the pyranose rings of the sugar lie over the hydrophobic residues while the polar side-chains are involved in hydrogen bonding interactions with the equatorial hydroxyl groups of the glucose rings. CBDN1 binds a calcium ion at a site opposite the oligosaccharide binding face. The binding affinity of oligosaccharides is unaffected by the presence of calcium. CBDN1 binds nitroxide spin-labelled oligosaccharides in multiple orientations. In one orientation the spin-label group lies near residue alanine 18, in the other near glycine 86. This ability to bind the same ligand in several orientations indicates that different hydrogen bonding combinations between the sugar and protein must occur. This is likely related to the motional disorder observed for residues present in the binding face as determined by NMR relaxation methods. [Scientific formulae used in this abstract could not be reproduced.]
Letter from Thomas Lawson Limited to "Sirs" (at Rainbow Ranche), February 5, 1910
Creators: name: Limited, Thomas Lawson
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to "Sirs" (at Rainbow Ranche) from [J. Bael] at Thomas Lawson Limited, dated February 5, 1910, regarding an order and a quote.
M_A2.COHESIVE.4.9 Availability of the pipelines from the databases to the analysis tools
Creators: name: Di Pasquale Adriano,
name: Caldarelli Valentina
name: Mangone Iolanda
Publisher: name: Zenodo
Year: 2021
Subjects: OHEJP
COHESIVE
M‐A2.COHESIVE.4.9
Availability of the pipelines from the databases to the analysis tools
M‐A2.COHESIVE.5
IZSAM
WORKPACKAGE4

description: Project JIP2 COHESIVE COHESIVE: One Health Structure In Europe
  Milestone M‐A2.COHESIVE.4.9 Workpackage 4 M_A2.COHESIVE.4.9 Availability of the pipelines from the databases to the analysis tools
Equivalence between condensation and boiling in a Lennard Jones fluid
Creators: name: Sanchez-Burgos, I.
name: de Hijes, P. Montero
name: Rosales-Pelaez, P.
name: Vega, C.
name: Sanz, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Condensation and boiling are phase transitions highly relevant to industry, geology or atmospheric science. These phase transitions are initiated by the nucleation of a drop in a supersaturated vapor and of a bubble in an overstretched liquid respectively. The surface tension between both phases, liquid and vapor, is a key parameter in the development of such nucleation stage. Whereas the surface tension can be readily measured for a flat interface, there are technical and conceptual limitations to obtain it for the curved interface of the nucleus. On the technical side, it is quite difficult to observe a critical nucleus in experiments. From a conceptual point of view, the interfacial free energy depends on the choice of the dividing surface, being the surface of tension the one relevant for nucleation. We bypass the technical limitation by performing simulations of a Lennard Jones fluid where we equilibrate critical nuclei (both drops and bubbles). Regarding the conceptual hurdle, we find the relevant cluster size by searching the radius that correctly predicts nucleation rates and nucleation free energy barriers when combined with Classical Nucleation Theory. With such definition of the cluster size we find the same value of the surface tension for drops and bubbles of a given radius. Thus, condensation and boiling can be viewed as two sides of the same coin. Finally, we combine the data coming from drops and bubbles to obtain, via two different routes, estimates of the Tolman length, a parameter that allows describing the curvature dependence of the surface tension in a theoretical framework.
description: 10 figures, 110 references
title: Embolised central venous catheter fragment causing hepatic vein thrombosis after inadvertent catheter removal
Creators: name: Blegvad, Christoffer
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Cardiovascular
subject: Abdomen
subject: Thorax
subject: CT
subject: Clinical Cases

description: Clinical History: During a complicated postoperative course following vascular surgery, a 76-year-old male patient inadvertently removed his jugular central venous catheter. A CT scan one month later revealed that the catheter had fractured with a 10 cm embolised piece lodged in the right atrium and the inferior vena cava causing hepatic vein thrombosis.

description: 76 years, male
title: An acute aortic syndrome
Creators: name: Amado Costa, Ana Luisa
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Cardiovascular
subject: Arteries / Aorta
subject: Cardiovascular system
subject: Emergency
subject: CT
subject: CT-Angiography
subject: Clinical Cases

description: Clinical History: A 74-year-old former smoker, diabetic and hypertensive male patient presented to the emergency department with an acute onset of chest pain and diaphoresis. The patient was under chronic anticoagulant therapy (warfarin) due to atrial fibrillation and had a dilatated ascending aorta (with diameter of 4.3cm) documented on a recent echocardiography.

description: 74 years, male
AQUINO Patria di S. Tommaso - Coll'aggiunta della Lettera di S. Tommaso sulla Prescienza di Dio
Creators: name: Bonanni, Rocco
Publisher: name: Zenodo
Year: 1923
Subjects: S.Tommaso
S.Tommaso d'Aquino
Thomas Aquinas
Aquino

description: Un vecchio e raro lavoro di Monsignor Rocco Bonanni in merito a dibattute precisazioni storico biografiche, su avvenimenti e luoghi - per es. sul luogo di nascita e prigionia - di San Tommaso d'Aquino.

(Ringraziamenti al Collezionasta ed Antiquario Camillo Marino  che ha messo a disposizione l'opera originale che detiene insieme ad una delle più vaste raccolte iconografiche del Santo Venerato in Aquino (FR) )
Nucleon structure in lattice QCD with dynamical domain-wall fermions quarks
Creators: name: Lin, Huey-Wen
name: Ohta, Shigemi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report RBC and RBC/UKQCD lattice QCD numerical calculations of nucleon electroweak matrix elements with dynamical domain-wall fermions (DWF) quarks. The first, RBC, set of dynamical DWF ensembles employs two degenerate flavors of DWF quarks and the DBW2 gauge action. Three sea quark mass values of 0.04, 0.03 and 0.02 in lattice units are used with about 200 gauge configurations each. The lattice cutoff is about 1.7 GeV and the spatial volume is about (1.9 fm)^3. Despite the small volume, the ratio of the isovector vector and axial charges g_A/g_V and that of structure function moments _{u-d}/_{Delta u - Delta d} are in agreement with experiment, and show only very mild quark mass dependence. The second, RBC/UK, set of ensembles employs one strange and two degenerate (up and down) dynamical DWF quarks and Iwasaki gauge action. The strange quark mass is set at 0.04, and three up/down mass values of 0.03, 0.02 and 0.01 in lattice units are used. The lattice cutoff is about 1.6 GeV and the spatial volume is about (3.0 fm)^3. Even with preliminary statistics of 25-30 gauge configurations, the ratios g_A/g_V and _{u-d}/_{Delta u - Delta d} are consistent with experiment and show only very mild quark mass dependence. Another structure function moment, d_1, though yet to be renormalized, appears small in both sets.
description: 7 pages, 4 figures, talk presented at Lattice 2006, Tucson, Arizona, to be published in PoS(LAT2006)118; replaced Figure 3 with the pion mass squared in GeV^2 unit and corrected a minor error in the abstract in number of gauge configurations
The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67
Creators: name: Sandquist, Eric L.
name: Latham, David W.
name: Mathieu, Robert. D.
name: Leiner, Emily
name: Vanderburg, Andrew
name: Stello, Dennis
name: Orosz, Jerome A.
name: Bedin, Luigi R.
name: Libralato, Mattia
name: Malavolta, Luca
name: Nardiello, Domenico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a study of the bright detached eclipsing main sequence binary WOCS 11028 (Sanders 617) in the open cluster M67. Although the binary has only one eclipse per orbital cycle, we show that the masses of the stars can be derived very precisely thanks to a strong constraint on the orbital inclination: $M_A = 1.222\pm0.006 M_\odot$ and $M_B = 0.909\pm0.004 M_\odot$. We use a spectral energy distribution fitting method to derive characteristics of the component stars in lieu of the precise radii that would normally be derived from a doubly-eclipsing binary. The deconvolution of the SEDs reveals that the brighter component of the binary is at the faint turnoff point for the cluster -- a distinct evolutionary point that occurs after the convective core has been established and while the star is in the middle of its movement toward lower surface temperature, before the so-called hook at the end of main sequence. The measurements are in distinct disagreement with evolution models at solar metallicity: higher metal abundances are needed to reproduce the characteristics of WOCS 11028 A. We discuss the changes to model physics that are likely to be needed to address the discrepancies. The clearest conclusions are that diffusion is probably necessary to reconcile spectroscopic abundances of M67 stars with the need for higher metallicity models, and that reduced strength convective overshooting is occurring for stars at the turnoff. At super-solar bulk metallicity, various indicators agree on a cluster age between about 3.5 and 4.0 Gyr.
description: 31 pages, 20 figures, accepted for AJ
Optimizing privacy-accuracy tradeoff for privacy preserving data mining
Creators: name: Kim, Dongjin
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Privacy Preserving Data Mining

description: Organizations and companies often need to share data for data mining. However, there are concerns of privacy breaches of the shared data which might have legal and strategic consequences for owners of the data. There has been a rich literature on privacy preserving data mining methods that can protect privacy and at the same time still allows accurate data mining results. Many such methods have some parameters that need to be set correctly to achieve the desired degree of privacy protection and the desired quality of mining results. Currently, there has been little research on how to find the optimal setting of these parameters efficiently.  This thesis studies the parameter tuning problem for the condensation approach, a widely known privacy preserving data mining method. The contributions include: 1. Analyze of the condensation approach and identification of its weakness, 2. A class-wise condensation approach to address the weakness of the condensation approach, 3. A rule-based approach to find the optimal setting of the group size parameter of the condensation approach, 4) experimental evaluation of proposed approaches. The experimental results show that the proposed class-wise condensation approach leads to better mining quality than the original condensation approach, and the rule-based parameter setting approach can find the optimal setting in a cost-effective manner.
Verification of Models for Calculation of E1 Radiative Strength
Creators: name: Plujko, V. A.
name: Kadenko, I. M.
name: Kulich, E. V.
name: Goriely, S.
name: Davidovskaya, O. I.
name: Gorbachenko, O. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Photoabsorption cross sections and gamma-decay strength function are calculated and compared with experimental data to test the existing models of dipole radiative strength functions (RSF) for the middle-weight and heavy atomic nuclei. Simplified version of the modified Lorentzian model are proposed. New tables of giant dipole resonance (GDR) parameters are given. It is shown that the phenomenological closed-form models with asymmetric shape can be used for overall estimates of the dipole RSF in the gamma -ray energy region up to about 20 MeV when GDR parameters are known or the GDR systematics can be adopted. Otherwise, the HFB-QRPA microscopic model and the semi-classical approach with moving surface appear to be more adequate methods to estimate the dipole photoabsorption RSF.
description: 33 pages; 5 figures, 3 tables. Talk given at Workshop on Photon Strength Functions, Prague, Czech Republic, June 17-20, 2007
Coordinated PV re-phasing: a novel method to maximize renewable energy integration in LV networks by mitigating network unbalances
Creators: name: Bandara, W. G. Chaminda
name: Godaliyadda, G. M. R. I.
name: Ekanayake, M. P. B.
name: Ekanayake, J. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: As combating climate change has become a top priority and as many countries are taking steps to make their power generation sustainable, there is a marked increase in the use of renewable energy sources (RESs) for electricity generation. Among these RESs, solar photovoltaics (PV) is one of the most popular sources of energy connected to LV distribution networks. With the greater integration of solar PV into LV distribution networks, utility providers impose caps to solar penetration in order to operate their network safely and within acceptable norms. One parameter that restricts solar PV penetration is unbalances created by loads and single-phase rooftop schemes connected to LV distribution grids. In this paper, a novel method is proposed to mitigate voltage unbalance in LV distribution grids by optimally re-phasing grid-connected rooftop PV systems. A modified version of the discrete bacterial foraging optimization algorithm (DBFOA) is introduced as the optimization technique to minimize the overall voltage unbalance of the network as the objective function, subjected to various network and operating parameters. The impact of utilizing the proposed PV re-phasing technique as opposed to a fixed phase configuration are compared based on overall voltage unbalance, which was observed hourly throughout the day. The case studies show that the proposed approach can significantly mitigate the overall voltage unbalance during the daytime and can facilitate to increase the usable PV capacity of the considered network by 77%.
Morphometric analysis of the Late Cretaceous Placenticeras of Alabama, USA: Sexual dimorphism, allometry, and implications for taxonomy
Creators: name: Mohr, Rachel
name: Tobin, Thomas
name: Tompkins, Emily
Publisher: name: Zenodo
Year: 2024
Subjects: Ammonites
Morphometrics
Cephalopods
Placenticeras
Paleontology
Invertebrate paleontology
Cretaceous
Gulf Coastal Plain
Taxonomy

description: A traditional typological approach to taxonomy often does not adequately account for intraspecific variation and can result in taxonomic oversplitting. For many groups, including ammonoids of the Placenticeras genus, intraspecific variation documented in recent studies (e.g., ontogenetic changes, sexual dimorphism, polymorphism) challenges the historic proliferation of species names. Here, we used a population approach to taxonomy and quantitatively evaluated morphometric variation in a sample of Late Cretaceous (Santonian -Campanian) Placenticeras from Alabama and adjacent counties.

We used linear mixed models (LMMs) to characterize how morphological variables scale with conch size across the sample, exploiting mixed longitudinal data to evaluate individual variation in growth and inform interpretations of multivariate analyses. Extended LMMs incorporating geological formation evaluated morphological changes through time. Principal component analysis and clustering analysis were then used to evaluate the number of distinct clusters that emerged in multivariate morphospace independent of previous taxon name assignments.

Discontinuous scaling relationships and distinct clusters in multivariate space suggest sexual dimorphism characterized by differences in adult size, and secondarily, shape. Previous Stantonoceras and Placenticeras assignments broadly overlap in our morphospace, failing to justify this historic distinction (as sexual dimorphs, or as genera or subgenera). Placenticeras conch morphology and ornament placement changed through time, suggesting a potential utility for coarse (stage-level) biostratigraphy. However, temporal changes were not associated with distinct clusters in morphospace and our data fail to support the plethora of reported species names. As few as one or two (successive) species may be present in our sample (representing 130 years of collection effort). In addition to highlighting the need for a significant taxonomic revision of the Placenticeras genus, this study demonstrates the utility of LMMs for distinguishing between different sources of morphological variation, improving interpretations of morphospace under a population approach to taxonomy, and maximizing the amount of ontogenetic information that can be obtained non-destructively.
description: Morphometric measurements were collected with digital calipers. See associated manuscript for details.
Trends in the valence band electronic structures of mixed uranium oxides
Creators: name: Kvashnina, Kristina O
name: Kowalski, Piotr M
name: Butorin, Sergei M
name: Leinders, Gregory
name: Pakarinen, Janne
name: Bès, René
name: Li, Haijian
name: Verwerft, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Valence band electronic structure of mixed uranium oxides (UO2, U4O9, U3O7, U3O8, UO3) has been studied by the resonant inelastic X-ray scattering (RIXS) technique at the U M5 edge and by computational methods. We show here that the RIXS technique and recorded U 5f-O 2p charge transfer excitations can be used to proof the validity of theoretical approximations
description: Chem Commun (2018)