cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Histone H3K56 Acetylation, Rad52, and Non-DNA Repair Factors Control Double-Strand Break Repair Choice with the Sister Chromatid
Creators: name: Munoz-Galvan, Sandra
name: Jimeno, Sonia
name: Rothstein, Rodney Joel
name: Aguilera, Andres
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolution (Biology)

description: DNA double-strand breaks (DSBs) are harmful lesions that arise mainly during replication. The choice of the sister chromatid as the preferential repair template is critical for genome integrity, but the mechanisms that guarantee this choice are unknown. Here we identify new genes with a specific role in assuring the sister chromatid as the preferred repair template. Physical analyses of sister chromatid recombination (SCR) in 28 selected mutants that increase Rad52 foci and inter-homolog recombination uncovered 8 new genes required for SCR. These include the SUMO/Ub-SUMO protease Wss1, the stress-response proteins Bud27 and Pdr10, the ADA histone acetyl-transferase complex proteins Ahc1 and Ada2, as well as the Hst3 and Hst4 histone deacetylase and the Rtt109 histone acetyl-transferase genes, whose target is histone H3 Lysine 56 (H3K56). Importantly, we use mutations in H3K56 residue to A, R, and Q to reveal that H3K56 acetylation/deacetylation is critical to promote SCR as the major repair mechanism for replication-born DSBs. The same phenotype is observed for a particular class of rad52 alleles, represented by rad52-C180A, with a DSB repair defect but a spontaneous hyper-recombination phenotype. We propose that specific Rad52 residues, as well as the histone H3 acetylation/deacetylation state of chromatin and other specific factors, play an important role in identifying the sister as the choice template for the repair of replication-born DSBs. Our work demonstrates the existence of specific functions to guarantee SCR as the main repair event for replication-born DSBs that can occur by two pathways, one Rad51-dependent and the other Pol32-dependent. A dysfunction can lead to genome instability as manifested by high levels of homolog recombination and DSB accumulation.
Hadronization and Hadronic Freeze-Out in Relativistic Nuclear Collisions
Creators: name: Becattini, Francesco
name: Bleicher, Marcus
name: Kollegger, Thorsten
name: Mitrovski, Michael
name: Schuster, Tim
name: Stock, Reinhard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze hadrochemical freeze-out in central Pb+Pb collisions at CERN SPS energies, employing the hybrid version of the Ultrarelativistic Quantum Molecular Dynamics model, which describes the transition from a hydrodynamic stage to hadrons by the Cooper-Frye mechanism, and matches to a final hadron-resonance cascade. We fit the results both before and after the cascade stage using the Statistical Model, to assess the effect of the cascade phase. We observe a strong effect on antibaryon yields except anti-Omega, resulting in a shift in T and mu_B of the freeze-out curve. We discuss indications of a similar effect in SPS and RHIC data, and propose a method to recover the bulk hadron freeze-out conditions.
description: 9 pages, 11 figures
Detection of Drug-Drug Interactions by Modeling Interaction Profile Fingerprints
Creators: name: Vilar Varela, Santiago
name: Uriarte, Eugenio
name: Santana, Lourdes
name: Tatonetti, Nicholas P.
name: Friedman, Carol
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Drugs
subject: Pharmacology

description: Drug-drug interactions (DDIs) constitute an important problem in postmarketing pharmacovigilance and in the development of new drugs. The effectiveness or toxicity of a medication could be affected by the co-administration of other drugs that share pharmacokinetic or pharmacodynamic pathways. For this reason, a great effort is being made to develop new methodologies to detect and assess DDIs. In this article, we present a novel method based on drug interaction profile fingerprints (IPFs) with successful application to DDI detection. IPFs were generated based on the DrugBank database, which provided 9,454 well-established DDIs as a primary source of interaction data. The model uses IPFs to measure the similarity of pairs of drugs and generates new putative DDIs from the non-intersecting interactions of a pair. We described as part of our analysis the pharmacological and biological effects associated with the putative interactions; for example, the interaction between haloperidol and dicyclomine can cause increased risk of psychosis and tardive dyskinesia. First, we evaluated the method through hold-out validation and then by using four independent test sets that did not overlap with DrugBank. Precision for the test sets ranged from 0.4–0.5 with more than two fold enrichment factor enhancement. In conclusion, we demonstrated the usefulness of the method in pharmacovigilance as a DDI predictor, and created a dataset of potential DDIs, highlighting the etiology or pharmacological effect of the DDI, and providing an exploratory tool to facilitate decision support in DDI detection and patient safety.
UV-radiation Induced Disruption of Dry-Cavities in Human γD-crystallin Results in Decreased Stability and Faster Unfolding
Creators: name: Xia, Zhen
name: Yang, Zaixing
name: Huynh, Tien
name: King, Jonathan A.
name: Zhou, Ruhong
Publisher: name: Columbia University
Year: 2013
Subjects: Chemistry
Ophthalmology
Biochemistry

description: Age-onset cataracts are believed to be expedited by the accumulation of UV-damaged human γD-crystallins in the eye lens. Here we show with molecular dynamics simulations that the stability of γD-crystallin is greatly reduced by the conversion of tryptophan to kynurenine due to UV-radiation, consistent with previous experimental evidences. Furthermore, our atomic-detailed results reveal that kynurenine attracts more waters and other polar sidechains due to its additional amino and carbonyl groups on the damaged tryptophan sidechain, thus breaching the integrity of nearby dry center regions formed by the two Greek key motifs in each domain. The damaged tryptophan residues cause large fluctuations in the Tyr-Trp-Tyr sandwich-like hydrophobic clusters, which in turn break crucial hydrogen-bonds bridging two β-strands in the Greek key motifs at the “tyrosine corner”. Our findings may provide new insights for understanding of the molecular mechanism of the initial stages of UV-induced cataractogenesis.
Rotation Curves of Galaxies by Fourth Order Gravity
Creators: name: Stabile, A.
name: Scelza, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the radial behavior of galactic rotation curves by a Fourth Order Gravity adding also the Dark Matter component. The Fourth Order Gravity is a Lagrangian containing the Ricci scalar, the Ricci and Riemann tensor, but the rotation curves are depending only on two free parameters. A systematic analysis of rotation curves, in the Newtonian Limit of theory, induced by all galactic sub-structures of ordinary matter is shown. This analysis is presented for Fourth Order Gravity with and without Dark Matter. The outcomes are compared with respect to classical outcomes of General Relativity. The gravitational potential of point-like mass is the usual potential corrected by two Yukawa terms. The rotation curve is higher or also lower than curve of General Relativity if in the Lagrangian the Ricci scalar square is dominant or not with respect to the contribution of the Ricci tensor square. The curves are compared with the experimental data for the Milky Way and the galaxy NGC 3198. Although the Fourth Order Gravity gives more rotational contributions, in the limit of large distances the Keplerian behavior is present, and it is missing if we add a Dark Matter component. By modifying the theory of Gravitation consequently also the spatial description of Dark Matter could undergo a modification. At last we compare the gravitational potential by Fourth Order Gravity with respect to more used potential induced by power law of Ricci scalar.
description: 14 pages, 10 figures
Communication: Inferring the equation of state of a metastable hard-sphere fluid from the equation of state of a hard-sphere mixture at high densities
Creators: name: Santos, Andrés
name: Yuste, Santos B.
name: de Haro, Mariano López
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A possible approximate route to obtain the equation of state of the monodisperse hard-sphere system in the metastable fluid region from the knowledge of the equation of state of a hard-sphere mixture at high densities is discussed. The proposal is illustrated by using recent Monte Carlo simulation data for the pressure of a binary mixture. It is further shown to exhibit high internal consistency.
description: 4 pages, 2 figures; v2: Simulation data for one-component hard spheres included in Fig. 1
Queering Christianity : the journey from rigid doctrine to personal theologies in a selection of YA literature with LGBTQ content
Creators: name: Bittner, Robert
Publisher: name: University of British Columbia
Year: 2011

description: Young Adult (YA) novels are quickly becoming an ever more influential and prominent part of the book publishing world. At their best, YA novels not only provide mirrors of self as well as windows to culture and opportunity for readers to see their world, themselves, their society or to see a different world in which they would rather live, but YA novels can also provide a mirror for young people to see a reflection of themselves, that is, to gain affirmation that they are not alone: they are represented (Bishop, 1990). With this view of YA fiction in mind, I have undertaken to analyze three novels—Nothing Pink, The God Box, and Thinking Straight—that each reflect the experiences of a group of teens underrepresented in fictional narratives: Gay Christians. Utilizing a Queer Theology framework informed by the work of Goss (1999), Loughlin (2007), Althaus-Reid and Isherwood (2009), and others, I seek to explore the nature of the interactions between the teenage protagonists in each novel and the Christian institutions—family, school, ministries, churches—that seek to hold them in a heteronormative grip. With each chapter of my thesis exploring a different aspect of this interaction, I follow a progression that begins with the protagonists rebelling against Christian dogma and assumptions, to queering and reclaiming that dogma, and ultimately, to finding acceptance and peace within the new theological framework. I go on to explore the place of these novels in the queer YA canon and examine the ways in which each book attempts to queer theology and expectations; I argue that is difficult, if not impossible, to fully escape dominant heteronormative assumptions when writing about Gay Christians for contemporary audiences. I found that the authors of the three novels were successful at creating, through their protagonists, queered Christian dogma that counters Protestant Christian expectations, but from within the confines of a heteronormative frame. While not destroying all the work of queering Christian dogma that the authors undertake, their inability to work outside of a heterosexist framework does complicate the notion of queering the novels overall.
title: Pitfalls in TIRADS Classification of Benign Thyroid Nodules and Their Mimics: A Pictorial Review of Imaging Findings
Creators: name: Tan , Timothy
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Endocrine disorders
subject: Sampling
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Interventional non-vascular
subject: Head and neck
subject: Head and Neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe/illustrate the spectrum of sonographic features and associated pitfalls of benign and malignant thyroid nodules and their mimics that are classified according to the thyroid imaging reporting and data system (ACR-TIRADS) 1...
Mulsemedia Communication Research Challenges for Metaverse in 6G Wireless Systems
Creators: name: Akyildiz, Ian F.
name: Guo, Hongzhi
name: Dai, Rui
name: Gerstacker, Wolfgang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Although humans have five basic senses, sight, hearing, touch, smell, and taste, most multimedia systems in current systems only capture two of them, namely, sight and hearing. With the development of the metaverse and related technologies, there is a growing need for a more immersive media format that leverages all human senses. Multisensory media(Mulsemedia) that can stimulate multiple senses will play a critical role in the near future. This paper provides an overview of the history, background, use cases, existing research, devices, and standards of mulsemedia. Emerging mulsemedia technologies such as Extended Reality (XR) and Holographic-Type Communication (HTC) are introduced. Additionally, the challenges in mulsemedia research from the perspective of wireless communication and networking are discussed. The potential of 6G wireless systems to address these challenges is highlighted, and several research directions that can advance mulsemedia communications are identified.
From antiferromagnetic insulator to correlated metal in pressurized and doped LaMnPO
Creators: name: Simonson, J. W.
name: Yin, Z. P.
name: Pezzoli, M.
name: Guo, J.
name: Liu, J.
name: Post, K.
name: Efimenko, A.
name: Hollmann, N.
name: Hu, Z.
name: Lin, H. -J.
name: Chen, C. T.
name: Marques, C.
name: Leyva, V.
name: Smith, G.
name: Lynn, J. W.
name: Sun, L.
name: Kotliar, G.
name: Basov, D. N.
name: Tjeng, L. H.
name: Aronson, M. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Widespread adoption of superconducting technologies requires the discovery of new materials with enhanced properties, especially higher superconducting transition temperatures T$_{c}$. The unexpected discovery of high T$_{c}$ superconductivity in cuprates and in materials as diverse as heavy fermions, organic conductors, and endohedrally-doped fullerenes suggests that the highest T$_{c}$s occur when pressure or doping transform the localized and moment-bearing electrons in antiferromagnetic insulators into itinerant and weakly magnetic metals. The absence of this delocalization transition in Fe-based superconductors may limit their T$_{c}$s, but even larger T$_{c}$s may be possible in their isostructural Mn analogs, which are antiferromagnetic insulators like the cuprates. It is generally believed that prohibitively large pressures would be required to suppress the strong Hund's rule coupling in these Mn-based compounds, collapsing the insulating gap and enabling superconductivity. Indeed, no Mn-based compounds are known to be superconductors. The electronic structure calculations and x-ray diffraction measurements presented here challenge these long held beliefs, finding that only modest pressures are required to transform LaMnPO, isostructural to superconducting host LaFeAsO, from an insulating tetragonal structure with a large Mn moment to a gapless orthorhombic structure with a small Mn moment. Proximity to this electronic delocalization transition in LaMnPO results in a highly interacting metallic state, the familiar breeding ground of superconductivity.
description: 5 pages, 5 figures
Reionisation time fields reconstruction from 21 cm signal maps
Creators: name: Hiegel, Julien
name: Thélie, Emilie
name: Aubert, Dominique
name: Chardin, Jonathan
name: Gillet, Nicolas
name: Galois, Pierre
name: Mai, Nicolas
name: Ocvirk, Pierre
name: Ibata, Rodrigo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: During the Epoch of reionisation, the intergalactic medium is reionised by the UV radiation from the first generation of stars and galaxies. One tracer of the process is the 21 cm line of hydrogen that will be observed by the Square Kilometre Array (SKA) at low frequencies, thus imaging the distribution of ionised and neutral regions and their evolution. To prepare for these upcoming observations, we investigate a deep learning method to predict from 21 cm maps the reionisation time field (treion(r)), i.e. the time at which each location has been reionised. treion(r) encodes the propagation of ionisation fronts in a single field, gives access to times of local reionisation or to the extent of the radiative reach of early sources. Moreover it gives access to the time evolution of ionisation on the plane of sky, when such evolution is usually probed along the line-of-sight direction. We trained a convolutional neural network (CNN) using simulated 21 cm maps and reionisation times fields produced by the simulation code 21cmFAST . We also investigate the performance of the CNN when adding instrumental effects. Globally, we find that without instrumental effects the 21 cm maps can be used to reconstruct the associated reionisation times field in a satisfying manner: the quality of the reconstruction is dependent on the redshift at which the 21 cm observation is being made and in general it is found that small scale (<10cMpc/h) features are smoothed in the reconstructed field, while larger scale features are well recovered. When instrumental effects are included, the scale dependance of reconstruction is even further pronounced, with significant smoothing on small and intermediate scales.
Deficiencies of the Lipid-Signaling Enzymes Phospholipase D1 and D2 Alter Cytoskeletal Organization, Macrophage Phagocytosis, and Cytokine-Stimulated Neutrophil Recruitment
Creators: name: Ali, Wahida H.
name: Chen, Qin
name: Delgiorno, Kathleen E.
name: Su, Wenjuan
name: Hall, Jason C.
name: Hongu, Tsunaki
name: Tian, Huasong
name: Kanaho, Yasunori
name: Di Paolo, Gilbert
name: Crawford, Howard C.
name: Frohman, Michael A.
Publisher: name: Columbia University
Year: 2013
Subjects: Cytology
Pathology
Medicine

description: Cell migration and phagocytosis ensue from extracellular-initiated signaling cascades that orchestrate dynamic reorganization of the actin cytoskeleton. The reorganization is mediated by effector proteins recruited to the site of activity by locally-generated lipid second messengers. Phosphatidic acid (PA), a membrane phospholipid generated by multiple enzyme families including Phospholipase D (PLD), has been proposed to function in this role. Here, we show that macrophages prepared from mice lacking either of the classical PLD isoforms PLD1 or PLD2, or wild-type macrophages whose PLD activity has been pharmacologically inhibited, display isoform-specific actin cytoskeleton abnormalities that likely underlie decreases observed in phagocytic capacity. Unexpectedly, PA continued to be detected on the phagosome in the absence of either isoform and even when all PLD activity was eliminated. However, a disorganized phagocytic cup was observed as visualized by imaging PA, F-actin, Rac1, an organizer of the F-actin network, and DOCK2, a Rac1 activator, suggesting that PLD-mediated PA production during phagocytosis is specifically critical for the integrity of the process. The abnormal F-actin reorganization additionally impacted neutrophil migration and extravasation from the vasculature into interstitial tissues. Although both PLD1 and PLD2 were important in these processes, we also observed isoform-specific functions. PLD1-driven processes in particular were observed to be critical in transmigration of macrophages exiting the vasculature during immune responses such as those seen in acute pancreatitis or irritant-induced skin vascularization.
Ceratina tarsata MORAWITZ, Pithitis 1872
Creators: name: Madl, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Ceratina
Ceratina tarsata

description: Ceratina tarsata MORAWITZ, 1872
Pithitis tarsata (MORAWITZ, 1872): DALY 1983a: 36 (key), 45 (fig. 35), 50 (fig. 51), 60 (tax., descr. ♂ ♀, Obock).
Pithitis tarsata (MORAWITZ, 1872): DALY 1983b: 500 (key), 503-4 (tax., Djibouti, Obock, Tadjoura).
Ceratina tarsata MORAWITZ, 1872: EARDLEY & URBAN 2010: 383 (cat. Afr. reg.).
Ceratina tarsata MORAWITZ, 1872: RASMUSSEN 2012: 21 (tax., Obock, cat. taxa described by Vachal).
* Ceratina caesia n.sp.: VACHAL 1904: 385 (descr. ♀, Obock).
Ceratina caesia VACHAL, 1903: FRIESE 1905a: 3 (tax., cat. Afr. reg.), 8 (original descr., Obock).
Ceratina caesia VACHAL, 1903: FRIESE 1909a: 191 (cat. Afr. reg.), 195 (original descr., Obock), 465 (cat. Afr. reg.).
Ceratina caesia VACHAL, 1903: COCKERELL 1937: 39 (tax.).
Ceratina caesia VACHAL, 1903: RASMUSSEN 20: 2012 (tax., Obock, cat. taxa described by Vachal).
Pithitis (Pithitis) caesia (VACHAL, 1903): HIRASHIMA 1969: 253 (tax.), 253 (fig. 5: map), 654-55 (tax., Obock), 666 (tax.).
Ceratina caesia VACHAL, 1903: DALY 1973: 387 (tax.).
Ceratina caesia VACHAL, 1903: DALY 1983a: 60 (syn.).
* Ceratina mauritanica LEPELETIER DE SAINT- FARGEAU, 1841: WALKER 1871a: 50 (Tadjoura).
Ceratina mauritanica LEPELETIER DE SAINT- FARGEAU, 1841: INNES BEY 1911: 106 (Tadjoura, cat. Lord Collection).
D i s t r i b u t i o n: Djibouti, Obock, Tadjoura.
Ceratina tarsata is known from the Afrotropical (Chad, Djibouti, Eritrea, Mali, Senegal, Sudan) and Palaearctic (e.g. Yemen) regions. The material from the Smith Collection
(DALY 1983b: 504) was published by WALKER (1871a) as Ceratina mauritanica. The papers of WALKER (1871a) and INNES BEY (1912) have been overlooked till now. The record from Djibouti (WALKER 1871a) is not mentioned in DE DALLA TORRE (1896: 196), FRIESE (1905a: 3; 1909a) and EARDLEY & URBAN (2010).
description: Published as part of Madl, Michael, 2018, A preliminary catalogue of the Hymenoptera (Insecta) of the Republic of Djibouti, pp. 907-967 in Linzer biologische Beiträge 50 (2) on pages 934-935, DOI: 10.5281/zenodo.3776452
Experimentally Derived Dielectronic Recombination Rate Coefficients For Helium-Like C V and Hydrogenic O VIII
Creators: name: Savin, Daniel Wolf
Publisher: name: Columbia University
Year: 1999
Subjects: Astrophysics
Plasma (Ionized gases)
Physics

description: Using published measurements of dielectronic recombination (DR) resonance strengths and energies for C V to C IV and O VIII to O VII, we have calculated the DR rate coefficient for these ions. Our derived rates are in good agreement with multiconfiguration, intermediate-coupling and multiconfiguration, fully relativistic calculations, as well as with most LS-coupling calculations. Our results are not in agreement with the recommended DR rates commonly used for modeling cosmic plasmas. We have used theoretical radiative recombination (RR) rates in conjunction with our derived DR rates to produce a total recombination rate for comparison with unified RR + DR calculations in LS coupling. Our results are not in agreement with undamped, unified calculations for C V but are in reasonable agreement with damped, unified calculations for O VIII. For C V, the Burgess general formula (GF) yields a rate that is in very poor agreement with our derived rate. The Burgess and Tworkowski modification of the GF yields a rate that is also in poor agreement. The Merts et al. modification of the GF yields a rate that is in fair agreement. For O VIII, the GF yields a rate that is in fair agreement with our derived rate. The Burgess and Tworkowski modification of the GF yields a rate that is in good agreement, and the Merts et al. modification yields a rate that is in very poor agreement. These results suggest that for ΔN = 1 DR, it is not possible to know a priori which formula will yield a rate closer to the true DR rate. We describe the technique used to obtain DR rate coefficients from laboratory measurements of DR resonance strengths and energies. For use in plasma modeling, we also present easy-to-use fitting formulae for the experimentally derived DR rates.
Q=0 collective modes originating from the low-lying Hg-O band in the superconducting HgBa2CuO4+δ
Creators: name: Das, Tanmoy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent discovery of two Q\sim0 collective modes [Y. Li et al., Nature 468, 283 (2010); ibid Nat. Phys. 8, 404 (2012)] in the single-layer HgBa2CuO4+δ, which are often taken as evidence of the orbital current origin of a pseudogap, we examine an alternative and assumption-free scenario constrained by first-principle calculations. We find that in addition to the common CuO2 band, a hybridized Hg-O state is present in the vicinity of the Fermi level, and that it contributes to the low-energy ground state of this system. We calculate the spin-excitation spectrum based on the random-phase-approximation in the superconducting state using a two band model and show that a collective mode in the multi-orbital channel arises at Q=0. This mode splits in energy, yet remains at Q\sim0 as the pseudogap develops breaking both translational and time-reversal symmetries in the spin-channel, and thus gap out the electrnic states. The observations of the dynamical mode and static moment in the pseudogap state are in good accord with experimental observations. A verifiable prediction of this proposal is the development of magnetic order also in the Hg-O layer. Detection of Hg-O band via optical study, or magnetic moment in the Hg-O layer will be tests of this calculation.
description: 5 pages, 4 figures. (v2): published version, slightly revisions in couple of places
title: Benign diagnoses at CT-guided lung biopsy and the prevention of unnecessary thoracotomies
Creators: name: Black, Douglas
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Retrospective
subject: Neoplasia
subject: Inflammation
subject: Infection
subject: Biopsy
subject: Percutaneous
subject: CT
subject: Lung
subject: Chest

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Percutaneous CT-guided lung biopsy (CTGLB) can provide a positive benign diagnosis in patients with suspected malignant disease. A positive benign tissue sample can spare further imaging or intervention including thoracotomy. A wide variety of...
Preparing for commercial field testing of the Janicki omni processor
Creators: name: Baldi, Marjorie
name: , Bill
Publisher: name: Gates Open Research
Year: 2020

description: This report captures lessons learned by DELVIC Sanitation Initiatives in preparing for the commercial field test of the Janicki Omni Processor, a fecal sludge waste-to-resource technology. While DELVIC is based in Senegal, the lessons they have learned may be useful to others planning commercial evaluations of fecal sludge waste-to-resource technologies in other contexts.
title: Computed tomography findings in inflammatory and infectious aortitis
Creators: name: BARRIOS LOPEZ, ANDRES JAVIER
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Inflammation
subject: Infection
subject: Angioplasty
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Emergency
subject: Arteries / Aorta
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To list and classify the common and less common forms of aortitis. To show representative cases of the most common forms of aortitis. To identify the different types of aortitis on the basis of their imaging...
Unveiling the anatomy of mode-coupling theory
Creators: name: Pihlajamaa, I.
name: Debets, V. E.
name: Laudicina, C. C. L.
name: Janssen, L. M. C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The mode-coupling theory of the glass transition (MCT) has been at the forefront of fundamental glass research for decades, yet the theory's underlying approximations remain obscure. Here we quantify and critically assess the effect of each MCT approximation separately. Using Brownian dynamics simulations, we compute the memory kernel predicted by MCT after each approximation in its derivation, and compare it with the exact one. We find that some often-criticized approximations are in fact very accurate, while the opposite is true for others, providing new guiding cues for further theory development.
The "Stationarity" of Shadow Prices of Factors in Project Evaluation, with and without Distortions
Creators: name: Bhagwati, Jagdish N.
name: Wan, Henry
Publisher: name: Columbia University
Year: 1979
Subjects: Economics

description: The article investigates the Ronald Findlay-Stanislaw Wellisz and T. N. Srinivasan-Bhagwati (F-W-S-B) two-by-two small-country model of traditional international trade theory. Section I recapitulates the basic F-W-S-B analysis, retaining the two-by-two model but distinguishing between the with-distortion and the no-distortion cases. Section II examines the many-good-and-factors cases: goods equal factors, no distortion; good equal factors, with distortion; goods outnumber factors, no distortion; goods outnumber factors, with distortion; factors outnumber goods, no distortion and factors outnumber goods, with distortion. Section III offers concluding observations, indicating the applicability of the analysis to other problems in trade theory and the relationship of the results to mathematical programming. The F-W-S-B model is characterized by three key features: constant-returns-to-scale production functions; two primary factors producing two graded goods; and fixed foreign prices for the two traded goods. The uniqueness and stationarity of the marginal variational shadow prices in the two-by-two F-W-S-B model, with and without the specified distortions, do not necessarily carry over to the cases with unequal numbers of goods and factors that need to be analyzed as soon as the author consider many goods and factors. The analysis leads to many observations. First, the relative numbering of factors and goods is of signifiance. Second, the analysis has clear applicability to the transfer problem, conceived not as a transfer of purchasing power, but rather as a transfer of factors of production as may be the case when reparations payments have to be made in barter. Third, the analysis has applicability therefore to the theory of international factor mobility.
Motivic DT-invariants for the one loop quiver with potential
Creators: name: Davison, Ben
name: Meinhardt, Sven
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35, 14D23

description: In this paper we compute the motivic Donaldson--Thomas invariants for the quiver with one loop and any potential. As the presence of arbitrary potentials requires the full machinery of \hat(μ)-equivariant motives, we give a detailed account of them. In particular, we will prove two results for the motivic vanishing cycle which might be of importance not only in Donaldson--Thomas theory.
description: 30 pages
title: North Atlantic Oscillation signals in the series of Beyşehir lake-levels (Turkey)
title: Hydrology days 2007
titleType: AlternativeTitle
title: AGU hydrology days 2007
titleType: AlternativeTitle
Creators: name: Kahya, Ercan
name: Cengiz, Taner
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2007

description: 2007 annual AGU hydrology days was held at Colorado State University on March 19 - March 21, 2007.
description: Includes bibliographical references.
description: The North Atlantic Oscillation (NAO) is one of the major sources of interannual atmospheric variability over the Northern Hemisphere. In this study, we examined the variability of lake-levels of Lake Beyşehir in time-scale (period) domain using continuous wavelet transform (CWT) and global wavelet spectrum (GWS). The long winter (December, January, February and March) lake-level series and NAO index (NAOI) series were subjected to the wavelet transform. We constructed the NAOI series between 1960 and 2002 in relation to the lake-level recording period. The wavelet transforms of the NAOI time series presented as a three-dimension diagram showed different periodicities occurring in various time intervals. In short, we identified four main objects in this diagram during the above period. The center of the light tone regions in the diagram of CWT of Lake Beyşehir is located somewhere in the grid defined by a time band 1963-1979 and a scale band 5-year to 26-year. These long periodicities are coherent with the classical NAO winter peaks. In order to discover significant periodicities in Beyşehir lake-levels, we also calculated the GWS of the CWT. For the mid-term periodicities, the global spectrum magnitudes of Lake Beyşehir increased from 0.5-year to 10-year scale level. Although the periodicities more than 10-year scale level were detected, explaining significant relations between the NAO and these long-term periodicities remains a challenging task. The secondary cyclogenesis in eastern Mediterranean provides a physical linkage between the NAO (known as a key provider of precipitation to the Middle East region) and climatic surface variables in Turkey.
Phylogenetic implications of the morphology and development of the braincase of caecilian amphibians (gymnophiona)
Creators: name: Maddin, Hillary C.
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 449-479
description: A few pages are in colour.
description: Caecilians, one of the three living groups that comprise Lissamphibia (frogs, salamanders, and caecilians ), are considered the least well understood for many aspects of their biology. The current study set out to develop a framework, within which aspects such as morphology and evolution could be explored, by attempting to resolve the poorly understood phylogeny of caecilians by examining the morphology of the braincase and stapes. The braincases and stapedes of twenty-seven species of caecilian were examined using micro-computed tomography and histologically-prepared specimens. The braincases were first examined for their potential to yield phylogenetic information by deciphering variation in the antotic region. Deriving from assessments of homology based on transmitted structures, eight different patterns of antotic foramina are identified and the distribution of these patterns is congruent with hypotheses of relationships based on molecular data. It is demonstrated that heterochrony was likely a driver of morphological variation; however, causes of such modifications failed to be correlated with the patterns observed. Description of the entire braincase and stapes permitted the identification of thirty-two new morphological characters. These characters are shown to be sufficient for resolving genus-level relationships in the context of previously developed matrices, in a way that is congruent with hypotheses based on molecular data. A combined phylogenetic analysis of morphological and molecular data provides a test of congruence between morphological characters in a total evidence context, permitting ancestral character state reconstructions to be conducted and the plesiomorphic condition of the braincase and stapes of Gymnophiona to be inferred. The ability for the braincase to reveal phylogenetic information in the broader context of lissamphibian phylogeny was explored by considering the auditory apparatus. New observations, combined with those made previously, are used to infer the presence of the lissamphibian-type ear in caecilians, suggesting the secondary loss of the tympanic and opercularis hearing pathways in caecilians. The evolution of the lissamphibian-type ear is most parsimoniously explained under the rnonophyletic ternnospondyl hypothesis of lissamphibian phylogeny. The data presented here, and the new phylogenetic framework incorporating morphology, provide a means to further explore evolution in a group with diverse factors influencing the evolution of morphology.
Economic policy in the public interest
Creators: name: Bhagwati, Jagdish N.
Publisher: name: Columbia University
Year: 2007
Subjects: Economics

description: Economists, whose discipline has always had a strong relationship to moral philosophy, have always seen their role in society as that of pursuing the public good. They properly see themselves as guardians of the public interest, and to be engaged in public-policy debates against special interests who wish to "capture" policy to advance their narrowly circumscribed, self-serving agendas.
Recurrence of particles in static and time varying oval billiards
Creators: name: Leonel, Edson D.
name: Dettmann, Carl P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Dynamical properties are studied for escaping particles, injected through a hole in an oval billiard. The dynamics is considered for both static and periodically moving boundaries. For the static boundary, two different decays for the recurrence time distribution were observed after exponential decay for short times: A changeover to: (i) power law or; (ii) stretched exponential. Both slower decays are due to sticky orbits trapped near KAM islands, with the stretched exponential apparently associated with a single group of large islands. For time dependent case, survival probability leads to the conclusion that sticky orbits are less evident compared with the static case.
description: 7 pages, 6 figures, to appear in Phys Lett A
title: The ubiquity of tuberculosis: a pictorial review of extrapulmonary findings.
Creators: name: Castro Cavallo, Luciano
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Cavitation
subject: Abscess
subject: Teleradiology
subject: Socio-economic issues
subject: Comparative studies
subject: Teleradiology
subject: MR
subject: CT
subject: Thorax
subject: Musculoskeletal spine
subject: Musculoskeletal soft tissue
subject: Chest

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To acknowledge tuberculosis (TB) as a worldwide public health issue. To review and characterize frequent and infrequent imaging findings in various extrapulmonary organs, both in immunocompetent and immunocompromised patients. To highlight the...
title: Cardiac papillary fibroelastoma: Imaging findings and differential diagnosis
Creators: name: Perja, Andra
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Neoplasia
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: MR
subject: Echocardiography
subject: CT
subject: Cardiovascular system
subject: Cardiac
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To highlight the imaging characteristics of cardiac papillary fibroelastomas and to illustrate cases of lesions located in different sites. To discuss and to exemplify the differential diagnosis. To emphasise the importance of an early and accurate...
Systematic errors in ground heat flux estimation and their correction
Creators: name: Gentine, Pierre
name: Entekhabi, D.
name: Heusinkveld, B.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Incoming radiation forcing at the land surface is partitioned among the components of the surface energy balance in varying proportions depending on the time scale of the forcing. Based on a land-atmosphere analytic continuum model, a numerical land surface model, and field observations we show that high-frequency fluctuations in incoming radiation (with period less than 6 h, for example, due to intermittent clouds) are preferentially partitioned toward ground heat flux. These higher frequencies are concentrated in the 0–1 cm surface soil layer. Subsequently, measurements even at a few centimeters deep in the soil profile miss part of the surface soil heat flux signal. The attenuation of the high-frequency soil heat flux spectrum throughout the soil profile leads to systematic errors in both measurements and modeling, which require a very fine sampling near the soil surface (0–1 cm). Calorimetric measurement techniques introduce a systematic error in the form of an artificial band-pass filter if the temperature probes are not placed at appropriate depths. In addition, the temporal calculation of the change in the heat storage term of the calorimetric method can further distort the reconstruction of the surface soil heat flux signal. A correction methodology is introduced which provides practical application as well as insights into the estimation of surface soil heat flux and the closure of surface energy balance based on field measurements.
title: Pancreatic transplantation: normal aspect and complications
Creators: name: Turcanu, Irina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Transplantation
subject: Obstruction / Occlusion
subject: Dissection
subject: Education
subject: Complications
subject: Ultrasound
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Pancreas
subject: Abdomen
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this poster is to describe imaging features of main anastomotic techniques used in pancreatic transplantation and to describe the imaging features of early complications after transplantation illustrated by sample...
(2,0) theory on circle fibrations
Creators: name: Linander, Hampus
name: Ohlsson, Fredrik
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider (2,0) theory on a manifold M_6 that is a fibration of a spatial S^1 over some five-dimensional base manifold M_5. Initially, we study the free (2,0) tensor multiplet which can be described in terms of classical equations of motion in six dimensions. Given a metric on M_6 the low energy effective theory obtained through dimensional reduction on the circle is a Maxwell theory on M_5. The parameters describing the local geometry of the fibration are interpreted respectively as the metric on M_5, a non-dynamical U(1) gauge field and the coupling strength of the resulting low energy Maxwell theory. We derive the general form of the action of the Maxwell theory by integrating the reduced equations of motion, and consider the symmetries of this theory originating from the superconformal symmetry in six dimensions. Subsequently, we consider a non-abelian generalization of the Maxwell theory on M_5. Completing the theory with Yukawa and phi^4 terms, and suitably modifying the supersymmetry transformations, we obtain a supersymmetric Yang-Mills theory which includes terms related to the geometry of the fibration.
description: 24 pages, v2 References added, typos corrected
Low-Degree Structure in Mercury's Planetary Magnetic Field
Creators: name: Anderson, Brian J.
name: Johnson, Catherine L.
name: Korth, Haje
name: Winslow, Reka M.
name: Borovsky, Joseph E.
name: Purucker, Michael E.
name: Slavin, James A.
name: Solomon, Sean C.
name: Zuber, Maria T.
name: McNutt Jr., Ralph L.
Publisher: name: Columbia University
Year: 2012
Subjects: Planetology

description: The structure of Mercury’s internal magnetic field has been determined from analysis of orbital Magnetometer measurements by the MESSENGER spacecraft. We identified the magnetic equator on 531 low-altitude and 120 high-altitude equator crossings from the zero in the radial cylindrical magnetic field component, Bp. The low-altitude crossings are offset 479 plus or minus 6 km northward, indicating an offset of the planetary dipole. The tilt of the magnetic pole relative to the planetary spin axis is less than 0.8 degrees. The high-altitude crossings yield a northward offset of the magnetic equator of 486 plus or minus 74 km. A field with only nonzero dipole and octupole coefficients also matches the low-altitude observations but cannot yield off-equatorial Bp = 0 at radial distances greater than 3520 km. We compared offset dipole and other descriptions of the field with vector field observations below 600 km for 13 longitudinally distributed, magnetically quiet orbits. An offset dipole with southward directed moment of 190 nT-R3M yields root-mean-square (RMS) residuals below 14 nT, whereas a field with only dipole and octupole terms tuned to match the polar field and the low-altitude magnetic equator crossings yields RMS residuals up to 68 nT. Attributing the residuals from the offset-dipole field to axial degree 3 and 4 contributions we estimate that the Gauss coefficient magnitudes for the additional terms are less than 4% and 7%, respectively, relative to the dipole. The axial alignment and prominent quadrupole are consistent with a non-convecting layer above a deep dynamo in Mercury’s fluid outer core.
Design and processing as ultrathin films of a sublimable Iron(II) spin crossover material exhibiting efficient and fast light-induced spin transition
Creators: name: Gavara-Edo, Miguel
name: Valverde-Muñoz, Francisco Javier
name: Muñoz, M. Carmen
name: Moubtassim, Safaa Elidrissi
name: Marques-Moros, Francisco
name: Herrero-Martín, Javier
name: Znovjyak, Kateryna
name: Seredyuk, Maksym
name: Real, José Antonio
name: Coronado, Eugenio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Materials based on spin crossover (SCO) molecules have centred the attention in Molecular Magnetism for more than forty years as they provide unique examples of multifunctional and stimuli-responsive materials, which can be then integrated into electronic devices to exploit their molecular bistability. This process often requires the preparation of thermally stable SCO molecules that can sublime and remain intact in contact with surfaces. However, the number of robust sublimable SCO molecules is still very scarce. Here we report a novel example of this kind. It is based on a neutral iron (II) coordination complex formulated as [FeII(neoim)2], where neoimH is the ionogenic ligand 2-(1H-imidazol-2-yl)-9-methyl-1,10-phenanthroline. In the first part a comprehensive study, which covers the synthesis and magneto-structural characterization of the [FeII(neoim)2] complex as a bulk microcrystalline material, is reported. Then, in the second part we investigate the suitability of this material to form thin films through high vacuum (HV) sublimation. Finally, the retainment of all present SCO capabilities in the bulk when the material is processed is thoroughly studied by means of X-ray absorption spectroscopy. In particular, a very efficient and fast light-induced spin transition (LIESST effect) has been observed, even for ultrathin films of 15 nm.
description: 27 pages, 2 schemes, 5 figures, 1 table