cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Detection of differentially expressed alternative transcripts using conventional microarrays : with application to diffuse large B-cell lymphoma
Creators: name: Chan, Fong Chun
Publisher: name: University of British Columbia
Year: 2011

description: Alternative splicing, alternative transcript initiation, and alternative 3’ polyadenylation are the main molecular mechanisms which allow for a single gene to give rise to multiple, biologically distinct, alternative mRNA transcripts. Prior studies have observed that alternatively expressed transcripts can be detected using conventional gene expression microarrays by identifying inconsistent expression patterns of probesets interrogating the same gene. However, conventional microarrays have been disregarded as a potential platform for detecting differentially expressed alternative transcripts between two groups of samples. We have developed a novel algorithm, called DISCO (DIscordancy SCOre), for detecting differentially expressed alternative transcripts between two groups of samples that is designed to work on conventional microarrays. Using a published dataset with RT-PCR validated results, we demonstrated DISCO’s ability to accurately discriminate between true positive and true negative events. Using an internal cohort of 36 conventional microarrays with matched RNA-Seq libraries and an external cohort of 200 conventional microarrays of diffuse large B-cell lymphoma samples, dichotomized into the two main subtypes, we showed that DISCO has superior performance over an existing method. Gene enrichment analysis performed on the top 165 DISCO candidate genes, from the comparison of the two main subtypes, showed an enrichment for the molecular terms “alternative splicing” and “splice variants”. Among the top ranked genes with differentially expressed transcripts, between the two main subtypes, included FOXP1 (a previously reported finding), and PHF19, which to the best of our knowledge has not yet been reported. With DISCO, conventional microarrays can now be analyzed to detect for differentially expressed transcripts which these microarrays were not originally designed for. To the best of our knowledge, this is the first study to assess the concordancy between conventional microarrays and RNA-Seq predictions for differentially expressed transcripts. The concordancy between these two platforms indicate that the extensive repository of conventional microarrays may serve as a powerful supplement, potentially acting as a first line discovery platform, to RNA-Seq data.
Implementation of General Dispersive Anisotropic Materials in Lebedev FDTD
Creators: name: Salmasi, Mahbod
name: Potter, Michael E.
name: Okoniewski, Michal M.
Publisher: name: IEEE
Year: 2018
Subjects: FDTD
Dispersive
Anisotropic
Invisibility Cloak
Transformation Optics
Dispersion
Time-domain analysis
Anisotropic magnetoresistance
Finite difference methods
Mathematical model
Power system stability
Stability analysis

description: A variant of the finite-difference time-domain (FDTD) algorithm - the Lebedev FDTD method - is augmented to allow for the simulation of electromagnetic waves in general dispersive anisotropic materials. Distinct dispersions may be applied to each of the principal axes of the anisotropic medium. The method is based on the auxiliary differential equation (ADE) and is simple to implement. Because of the collocated nature of the algorithm, multiterm dispersions necessary in previous implementations are avoided. Lebedev grid has previously been studied in detail by different research groups for simulation of anisotropy. In this work, we specifically focus on extending frequency dispersive materials to this method, and provide multiple examples to demonstrate the accuracy, validity and stability of the method.
title: An old known stranger: Moya Moya disease in childhood, Magnetic resonance and magnetic resonancia angiography findigs.
Creators: name: Pineda perez, José
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Education and training
subject: Education
subject: MR-Angiography
subject: MR
subject: Neuroradiology brain
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1.-Know the cerebral circulation. 2.-Understandthe pathophysiology of Moyamoya disease. 3.-Identify the featurings magnetic resonance and magnetic resonance angiographythe Moyamoya disease. 4.-Discuss the role of MRI and MR-angiography in...
PURE Final Report-Hrushovski Theorem on Simple Graphs and Tournaments
Creators: name: Qian, Xinjie
Publisher: name: University of Calgary
Year: 2018
Subjects: Graph Theory
Hrushovski Property
Tournaments
Automorphism

description: I worked with Dr. Micheal Pawliuk at the University of Calgary on this summer research. It was about graph theory, a topic in the field of pure mathematics. The research involved two main components: understand the details of the article ``Extending partial isomorphisms of finite graphs'' (Milliet,2004) and code the algorithm presented in the article in Sage; and extend the results to a case that is unresolved. The specific theorem we worked on is ``the Hrushovski property for graphs'' or the ``Extension property for partial automorphisms (EPPA) for graphs. (Hrushovski, 1992)'
Quark number susceptibility at finite density and low temperature
Creators: name: Giudice, Pietro
name: Hands, Simon
name: Skullerud, Jon-Ivar
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the quark number susceptibility in SU(2) lattice gauge theory with two Wilson quark flavours at non-zero chemical potential and low temperature. We present some technical aspects of the issue and numerical results obtained at different lattices and different parameters. We discuss what this observable can teach us about the phase diagram of the model and in particular about the relation between susceptibility and Polyakov loop
description: 7 pages, 6 figures, talk presented at the XXIX International Symposium on Lattice Field Theory, LATTICE 2011, July 2011, Squaw Valley, Lake Tahoe, California
title: Different patterns of dural enhancement
Creators: name: Singh, Bhupendar
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: CNS
subject: MR
subject: Contrast agent-intravenous
subject: Infection
subject: Inflammation
subject: Retrospective
subject: Not applicable
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1.To evaluate the anatomy of the dura matter. 2.Mechanism of contrast material uptake in MR and understand how it is reproduced in the terms of dural enhancement. 3 Characteristic MR Findings to differentiate pathologies of dural...
Quantum Model Theory (QMod): Modeling Contextual Emergent Entangled Interfering Entities
Creators: name: Aerts, Diederik
name: Sozzo, Sandro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P10

description: In this paper we present 'Quantum Model Theory' (QMod), a theory we developed to model entities that entail the typical quantum effects of 'contextuality', 'superposition', 'interference', 'entanglement' and 'emergence'. The aim of QMod is to put forward a theoretical framework that is more general than standard quantum mechanics, in the sense that, for its complex version it only uses this quantum calculus locally, i.e. for each context corresponding to a measurement, and for its real version it does not need the property of 'linearity of the set of states' to model the quantum effect. In this sense, QMod is a generalization of quantum mechanics, similar to how the general relativity manifold mathematical formalism is a generalization of special relativity. We prove by means of a representation theorem that QMod can be used for any entity entailing the typical quantum effects mentioned above. Some examples of application of QMod in concept theory and macroscopic physics are also considered.
description: 1 figure
title: Staged treatment of aortic dissection associated with Marfan syndrome
Creators: name: Pidvalna, Uliana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Prospective
subject: Genetic defects
subject: Dissection
subject: Acute
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Cardiovascular system
subject: Arteries / Aorta
subject: Vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the most life-threatening manifestations of Marfan’s syndrome (MS) in the cardiovascular system. To demonstrate the importance of images for choosing the appropriate surgical approach . To present computed tomography (CT)-signs, which...
Pseudo-particle approach for charge-transferring molecule-surface collisions
Creators: name: Marbach, Johannes
name: Bronold, Franz Xaver
name: Fehske, Holger
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Based on a semi-empirical generalized Anderson-Newns model we construct a pseudo-particle description for electron emission due to de-excitation of metastable molecules at surfaces. The pseudo-particle approach allows us to treat resonant charge-transfer and Auger processes on an equal footing, as it is necessary when both channels are open. This is for instance the case when a metastable nitrogen molecule hits a diamond surface. Using non-equilibrium Green functions and physically motivated approximations to the self-energies of the Dyson equations we derive a system of rate equations for the probabilities with which the metastable molecule, the molecular ground state, and the negative ion can be found in the course of the scattering event. From the rate equations we also obtain the spectrum of the emitted electron and the secondary electron emission coefficient. Our numerical results indicate the resonant tunneling process undermining the source of the Auger channel which therefore contributes only a few percent to the secondary electron emission.
description: 17 pages, 7 figures
title: Hepatic tumors with capsular retraction
Creators: name: Fernández Conesa, Mario
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Neoplasia
subject: Metastases
subject: Haemangioma
subject: Diagnostic procedure
subject: Ultrasound
subject: CT
subject: Liver
subject: Biliary Tract / Gallbladder
subject: Abdomen
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the tumor causes of retraction of the hepatic capsule. To identify the typical CT findings of the different entities involved. To be able to assess them properly and establish an accurate differential...
Universal relations for the two-dimensional spin-1/2 Fermi gas with contact interactions
Creators: name: Valiente, Manuel
name: Zinner, Nikolaj
name: Molmer, Klaus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present universal relations for a two-dimensional Fermi gas with pairwise contact interactions. The derivation of these relations is made possible by obtaining the explicit form of a generalized function -- selector -- in the momentum representation. The selector implements the short-distance boundary condition between two fermions in a straightforward manner, and leads to simple derivations of the universal relations, in the spirit of Tan's original method for the three-dimensional gas.
description: 4 pages. Version accepted in Phys. Rev. A
Finitely-Generated Projective Modules over the Theta-deformed 4-sphere
Creators: name: Peterka, Mira A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We investigate the "theta-deformed spheres" C(S^{3}_{theta}) and C(S^{4}_{theta}), where theta is any real number. We show that all finitely-generated projective modules over C(S^{3}_{theta}) are free, and that C(S^{4}_{theta}) has the cancellation property. We classify and construct all finitely-generated projective modules over C(S^{4}_θ) up to isomorphism. An interesting feature is that if theta is irrational then there are nontrivial "rank-1" modules over C(S^{4}_θ). In that case, every finitely-generated projective module over C(S^{4}_θ) is a sum of a rank-1 module and a free module. If theta is rational, the situation mirrors that for the commutative case theta=0.
description: 34 pages
America and Iraq: A Surreal Ending to an All Too Real War
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2010
Subjects: Public policy (Law)

description: The withdrawal of the remaining combat troops from Iraq this week has is proving to be a somewhat surreal ending to an all too real war. Almost seven and a half years after the war started amidst national and even global protests and outrage, its ending this month is a minor story, receiving far less coverage than the floods in Pakistan, the latest tea party shenanigans or the Obama's vacations.
Aspects of finite electrodynamics in D=3 dimensions
Creators: name: Gaete, Patricio
name: Helayel-Neto, Jose`
name: Spallucci, Euro
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the impact of a minimal length on physical observables for a three-dimensional axionic electrodynamics. Our calculation is done within the framework of the gauge-invariant, but path-dependent, variables formalism which is alternative to the Wilson loop approach. Our result shows that the interaction energy contains a regularised Bessel function and a linear confining potential. This calculation involves no theta expansion at all. Once again, the present analysis displays the key role played by the new quantum of length.
description: 12 pages, 2 figures; reference list updated and extended; new aknowlegments; removed line after eq.(1) erroneously inserted
Vital seeds: an assemblage approach to seed production and ownership
Creators: name: Comi, Matt
Publisher: name: Mountain Scholar
Year: 2017
Subjects: agri-food systems
assemblages
seeds

description: Presented at the Environmental justice in the Anthropocene symposium held on April 24-25, 2017 at the Lory Student Center, Colorado State University, Fort Collins Colorado. This symposium aims to bring together academics (faculty and graduate students), independent researchers, community and movement activists, and regulatory and policy practitioners from across disciplines, research areas, perspectives, and different countries. Our overarching goal is to build on several decades of EJ research and practice to address the seemingly intractable environmental and ecological problems of this unfolding era. How can we explore EJ amongst humans and between nature and humans, within and across generations, in an age when humans dominate the landscape? How can we better understand collective human dominance without obscuring continuing power differentials and inequities within and between human societies? What institutional and governance innovations can we adopt to address existing challenges and to promote just transitions and futures?
description: Includes bibliographical references.
description: This paper is a think piece which attempts to examine the complexities of holistic research in a brief space. I outline a theoretical positioning for environmental study based in assemblage thinking, a sometimes contentious (Hornborg 2017), but useful approach. I then demonstrate the kind of inquiry by utilizing this assemblage approach in order to explore and critique discursive-legal issues in US patent and PVPA certification legislation. The end-goal of the project is to begin exploring how assemblage thinking within environmental justice scholarship could imagine a more just ecologic future.
title: Interactions of prototype foamy virus capsids with host cell polo-like kinases are important for efficient viral DNA integration
Creators: name: Zurnic, Irena
name: Hütter, Sylvia
name: Rzeha, Ute
name: Stanke, Nicole
name: Reh, Juliane
name: Müllers, Erik
name: Hamann, Martin V.
name: Kern, Tobias
name: Gerresheim, Gesche K.
name: Lindel, Fabian
name: Serrao, Erik
name: Lesbats, Paul
name: Engelman, Alan N.
name: Cherepanov, Peter
name: Lindemann, Dirk
Publisher: name: Universität Potsdam
Year: 2019

description: Unlike for other retroviruses, only a few host cell factors that aid the replication of foamy viruses (FVs) via interaction with viral structural components are known. Using a yeast-two-hybrid (Y2H) screen with prototype FV (PFV) Gag protein as bait we identified human polo-like kinase 2 (hPLK2), a member of cell cycle regulatory kinases, as a new interactor of PFV capsids. Further Y2H studies confirmed interaction of PFV Gag with several PLKs of both human and rat origin. A consensus Ser-Thr/Ser-Pro (S-T/S-P) motif in Gag, which is conserved among primate FVs and phosphorylated in PFV virions, was essential for recognition by PLKs. In the case of rat PLK2, functional kinase and polo-box domains were required for interaction with PFV Gag. Fluorescently-tagged PFV Gag, through its chromatin tethering function, selectively relocalized ectopically expressed eGFP-tagged PLK proteins to mitotic chromosomes in a Gag STP motif-dependent manner, confirming a specific and dominant nature of the Gag-PLK interaction in mammalian cells. The functional relevance of the Gag-PLK interaction was examined in the context of replication-competent FVs and single-round PFV vectors. Although STP motif mutated viruses displayed wild type (wt) particle release, RNA packaging and intra-particle reverse transcription, their replication capacity was decreased 3-fold in single-cycle infections, and up to 20-fold in spreading infections over an extended time period. Strikingly similar defects were observed when cells infected with single-round wt Gag PFV vectors were treated with a pan PLK inhibitor. Analysis of entry kinetics of the mutant viruses indicated a post-fusion defect resulting in delayed and reduced integration, which was accompanied with an enhanced preference to integrate into heterochromatin. We conclude that interaction between PFV Gag and cellular PLK proteins is important for early replication steps of PFV within host cells.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 580
title: ASP modulo CSP
title: the clingcon system
titleType: Subtitle
Creators: name: Ostrowski, Max
name: Schaub, Torsten
Publisher: name: Universität Potsdam
Year: 2019

description: We present the hybrid ASP solver clingcon, combining the simple modeling language and the high performance Boolean solving capacities of Answer Set Programming (ASP) with techniques for using non-Boolean constraints from the area of Constraint Programming (CP). The new clingcon system features an extended syntax supporting global constraints and optimize statements for constraint variables. The major technical innovation improves the interaction between ASP and CP solver through elaborated learning techniques based on irreducible inconsistent sets. A broad empirical evaluation shows that these techniques yield a performance improvement of an order of magnitude.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 579
Testing three derivative methods of stellar population synthesis models
Creators: name: Zhang, Yu
name: Han, Zhanwen
name: Liu, Jinzhong
name: Zhang, Fenghui
name: Kang, Xiaoyu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The number of methods used to study the properties of galaxies is increased, and testing these methods is very important. Galactic globular clusters (GCs) provide an excellent medium for such test, because they can be considered as simple stellar populations. We present ages and metallicities for 40 Galactic GCs as determined from three publicly available techniques, including colour, Lick-index and spectrum-fitting methods, based on Bruzual & Charlot evolutionary population synthesis (EPS) models. By comparing with the ages obtained from colour-magnitude diagrams (CMDs) and metallicities obtained from spectra of stars, we are able to estimate the ability of 'these methods on determination of GCs parameters, which is absolutely necessary. As a result, we find that: (i) for the metallicity, our derived metallicities agree with those derived from the spectra of stars, Lick-index method is suitable to study metallicity for the stellar population systems in the range of -1.5=
description: 20 pages,14 figures, 3 tables;accepted by MNRAS
On the Potts model partition function in an external field
Creators: name: McDonald, Leslie M.
name: Moffatt, Iain
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the partition function of Potts model in an external (magnetic) field, and its connections with the zero-field Potts model partition function. Using a deletion-contraction formulation for the partition function Z for this model, we show that it can be expanded in terms of the zero-field partition function. We also show that Z can be written as a sum over the spanning trees, and the spanning forests, of a graph G. Our results extend to Z the well-known spanning tree expansion for the zero-field partition function that arises though its connections with the Tutte polynomial.
title: Morphosyntax in the bilingual mental lexicon
title: an experimental study of strong stems in German
titleType: Subtitle
Creators: name: Krause, Helena
name: Bosch, Sina
name: Clahsen, Harald
Publisher: name: Universität Potsdam
Year: 2019

description: Although morphosyntax has been identified as a major source of difficulty for adult (nonnative) language learners, most previous studies have examined a limited set of largely affix-based phenomena. Little is known about word-based morphosyntax in late bilinguals and of how morphosyntax is represented and processed in a nonnative speaker's lexicon. To address these questions, we report results from two behavioral experiments investigating stem variants of strong verbs in German (which encode features such as tense, person, and number) in groups of advanced adult learners as well as native speakers of German. Although the late bilinguals were highly proficient in German, the results of a lexical priming experiment revealed clear native-nonnative differences. We argue that lexical representation and processing relies less on morphosyntactic information in a nonnative than in a native language.
description: Postprints der Universität Potsdam : Humanwissenschaftliche Reihe, 520
Why Obama Institutionalized the Iraq and Afghanistan Wars
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2010
Subjects: Public policy (Law)

description: Institutionalizing these wars grew out of a recognition that an approach that sought to simply win both these wars and then get out would have been neither realistic nor relevant to the current situation, but it also reflected a concern, or even fear, about what would have happened if the U.S. had simply walked away from Afghanistan and Iraq and brought the troops home.
Evaluating Speech Separation Systems
Creators: name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2004
Subjects: Communication
Psychophysiology

description: Common evaluation standards are critical to making progress in any field, but they can also distort research by shifting all the attention to a limited subset of the problem. Here, we consider the problem of evaluating algorithms for speech separation and acoustic scene analysis, noting some weaknesses of existing measures, and making some suggestions for future evaluations. We take the position that the most relevant 'ground truth' for sound mixture organization is the set of sources perceived by human listeners, and that best evaluation standards would measure the machine's match to this perception at a level abstracted away from the low-level signal features most often considered in signal processing.
Modeling the auditory organization of speech: a summary and some comments
Creators: name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 1998
Subjects: subject: Sound
subject: Mathematics
subject: FOS: Mathematics

description: The preceding three chapters have been concerned with the issues arising as a result of the inconvenient fact that our ears are rarely presented with the sound of a single speaker in isolation, but more often with a combination of several speech and nonspeech sounds which may also have been further altered by the acoustic environment. Faced with such a mixture, the listener evidently needs to consider each source separately, and this process of information segregation is known as auditory organization or auditory scene analysis (Bregman, 1990). Pure curiosity as well as the possibility of applications in automatic signal interpretation drive us to investigate auditory scene analysis through psychological experiments and computational modeling. Having sketched this framework and the current limits to our understanding of the process of auditory organization, we can now examine the material of each of the three chapters in more detail, seeing how it fits into this framework and also where the framework may be inadequate. Following these discussions, we will conclude with some remarks suggested by the particular combination of results in this section.
Review of Site Fights: Divisive Facilities and Civil Society in Japan and the West, by Daniel P. Aldrich
Creators: name: Cooley, Alexander A.
Publisher: name: Columbia University
Year: 2009
Subjects: Public policy (Law)

description: The popular slogan NIMBY—Not in My Back Yard—captures a classic dilemma that confronts policymakers: Although society as a whole requires certain basic public goods, such as energy supplies, improved infrastructure, and transportation hubs, individual communities are often unwilling to bear the localized costs and externalities of hosting these installations. In this fresh, insightful, and creative study, Daniel Aldrich explores the ways in which states decide to site controversial facilities and the types of instruments that public agencies employ to respond to societal opposition against these siting decisions.
Review of Hispanic Spaces, Latino Places: Community and Cultural Diversity in Contemporary America, ed. Daniel D. Arreola
Creators: name: Irazabal Zurita, Clara E.
Publisher: name: Columbia University
Year: 2006
Subjects: Hispanic Americans

description: A welcome addition to the understudied field of Latino cultures and their linkages to place, this book transcends the common approaches to the study of demographic, racial, political, and cultural changes brought about by the fastest growing ethnic group in the U.S., to focus instead on Latinos' "different geographies, and social adjustments to diverse places" (p. 1). Contributors were selected from presenters at the 2002 Association of American Geographers meeting in Los Angeles, but most of the authors are not Latino or female.
Fighting Terrorism and Protecting Our Freedoms in Times Square
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2010
Subjects: Public policy (Law)

description: Much of the coverage of the attempted attack has been framed by a sense of how fortunate we are that this attack was foiled and how our security structures still are not strong enough. While this attempted terrorist attack is a reminder of the reality of the terrorist threat and the need to combat terrorism here in the U.S., it also demonstrates that perhaps we are not so vulnerable as all that. This is not to suggest that the threat is not real, but that we are probably doing something right in the fight against terrorism and that attacking the U.S. may not be as easy as it seems. Since the terrible events of September 11th, we have had foiled several attacks here in the U.S., but have not had any Jihadist attacks on our own soil, other than the Fort Hood shooter.
New H2 collision-induced absorption and NH3 opacity and the spectra of the coolest brown dwarfs
Creators: name: Saumon, D.
name: Marley, M. S.
name: Abel, M.
name: Frommhold, L.
name: Freedman, R. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present new cloudy and cloudless model atmospheres for brown dwarfs using recent ab initio calculations of the line list of ammonia (NH3) and of the collision-induced absorption of molecular hydrogen (H2). We compare the new synthetic spectra with models based on an earlier description of the H2 and NH3 opacities. We find a significant improvement in fitting the nearly complete spectral energy distribution of the T7p dwarf Gliese 570D and in near infrared color-magnitude diagrams of field brown dwarfs. We apply these new models to the identification of NH3 absorption in the H band peak of very late T dwarfs and the new Y dwarfs and discuss the observed trend in the NH3-H spectral index. The new NH3 line list also allows a detailed study of the medium resolution spectrum of the T9/T10 dwarf UGPS J072227.51-054031.2 where we identify several specific features caused by NH3.
description: 37 pages, 13 figures. Accepted for publication in the Astrophysical J
Glutamate and GABA neurons share cascading Onecut3/NAV2-driven differentiation trajectories in the developing hypothalamus
Creators: name: Zupancic, Maja
name: Keimpema, Erik
name: Tretiakov, Evgenii
name: Bhandari, Pradeep
name: Eder, Stephanie
name: Lev, Itamar
name: Härtig, Wolfgang
name: Zimmer, Manuel
name: Clotman, Frederic
name: Harkany, Tibor
Publisher: name: figshare
Year: 2023
Subjects: Animal developmental and reproductive biology
Evolution of developmental systems
Cell neurochemistry
Cell development, proliferation and death

description: ## Rationale:
 Differentiation trajectories to generate specialized cellular features rely on sets of transcription factors (TFs) whose temporal dynamics and coexistence underlie morphological and neurochemical divergence among neurons and neuroendocrine cells. Even though transcriptional programs were extensively studied in the developing nervous system, the coupling of TFs to effector gene networks that time and shape the morphogenesis of these polarized cells is less known.

 ## Results:
 Here, we make the curious observation that evolutionarily conserved Onecut3, a subordinate in the Onecut TF family known to control fate selection in progenitors, is instead expressed in fate-restricted neuroblasts in the vertebrate hypothalamus. In particular, a pool of Ascl1-containing progenitors in the midgestational mouse hypothalamus gives rise to both GABA and glutamate neurons destined to the periventricular and lateral hypothalamus, respectively, which uniformly upregulate Onecut3 only when exiting the proliferative zone of the 3rd ventricle. By combining single-cell RNA-seq, genetic Onecut3 reporters, gain-of-function models in vitro, and loss-of-function analysis in early-developing mice and C. elegans, we identify that Onecut3 instructs neuronal differentiation and maturation, through a Navigator-2 pathway to modulate neuritogenesis and leading process motility.

 ## Conclusion:
 Onecut3 executes an unexpected function by inducing cytoskeletal modifications of key importance for neuronal maturation and network integration during the morphogenesis of many neuronal phenotypes in the vertebrate hypothalamus.
On the Structure of Hot Gas in Halos: Implications for the Lx-Tx Relation & Missing Baryons
Creators: name: Sharma, Prateek
name: McCourt, Michael
name: Parrish, Ian J.
name: Quataert, Eliot
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present one-dimensional models of the hot gas in dark-matter halos, which both predict the existence of cool cores and explain their structure. Our models are directly applicable to semi-analytic models (SAMs) of galaxy formation. We have previously argued that filaments of cold (~10^4 K) gas condense out of the intracluster medium (ICM) in hydrostatic and thermal equilibrium when the ratio of the thermal instability timescale to the free-fall time $t_{TI}/t_{ff}$ falls below 5-10. This criterion corresponds to an upper limit on the density of the ICM and motivates a model in which a density core forms wherever $t_{TI}/t_{ff} \lesssim 10$. Consistent with observations and numerical simulations, this model predicts larger and more tenuous cores for lower-mass halos---while the core density in a cluster may be as large as ~ 0.1 cm^{-3}, the core density in the Galactic halo should not exceed ~ 10^{-4} cm^{-3}. We can also explain the large densities in smaller mass halos (galactic `coronae') if we include the contribution of the central galaxy to the gravitational potential. Our models produce a favorable match to the observational X-ray luminosity-temperature (Lx-Tx) relation. For halo masses $\lesssim 10^{13}$ Msun the core size approaches the virial radius. Thus, most of the baryons in such halos cannot be in the hot ICM, but either in the form of stars or in the form of hot gas beyond the virial radius. Because of the smaller mass in the ICM and much larger mass available for star formation, the majority of the baryons in low mass halos ($\lesssim 10^{13}$ Msun) can be expelled beyond the virial radius due to supernova feedback. This can account for the baryons `missing' from low mass halos, such as the Galactic halo.
description: 13 pages, 4 figures; accepted in MNRAS; a new figure and changes based on referee's report; critical density using H0=70 km/s/Mpc instead of the earlier value based on H0=100 km/s/Mpc
Self-assembly of bi-functional patchy particles with anisotropic shape into polymers chains: theory and simulations
Creators: name: De Michele, Cristiano
name: Bellini, Tommaso
name: Sciortino, Francesco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Concentrated solutions of short blunt-ended DNA duplexes, down to 6 base pairs, are known to order into the nematic liquid crystal phase. This self-assembly is due to the stacking interactions between the duplex terminals that promotes their aggregation into poly-disperse chains with a significant persistence length. Experiments show that liquid crystals phases form above a critical volume fraction depending on the duplex length. We introduce and investigate via numerical simulations, a coarse-grained model of DNA double-helical duplexes. Each duplex is represented as an hard quasi-cylinder whose bases are decorated with two identical reactive sites. The stacking interaction between terminal sites is modeled via a short-range square-well potential. We compare the numerical results with predictions based on a free energy functional and find satisfactory quantitative matching of the isotropic-nematic phase boundary and of the system structure. Comparison of numerical and theoretical results with experimental findings confirm that the DNA duplexes self-assembly can be properly modeled via equilibrium polymerization of cylindrical particles and enables us to estimate the stacking energy.
title: Ultrasonography of pediatric scrotal masses
Creators: name: BADI, Fatima-ezzahare
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Genital / Reproductive system male
subject: Oncology
subject: Paediatric
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Spectral Doppler
subject: Technical aspects
subject: Calcifications / Calculi
subject: Cancer
subject: Infection
subject: Retrospective
subject: Observational
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Discuss the sonographic imaging of common scrotal masses in both acute and non-acute...
Quadrature algorithms to the luminosity distance with a time-dependent dark energy model
Creators: name: Yue, Nan-Nan
name: Liu, De-Zi
name: Pei, Xiao-Xing
name: Zhu, Fang-Fang
name: Zhang, Tong-Jie
name: Yang, Zhi-Liang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In our previous work, we have proposed two methods for computing the luminosity distance d_{L}^Λ in LCDM model. In this paper, two effective quadrature algorithms, known as Romberg Integration and composite Gaussian Quadrature, are presented to calculate the luminosity distance d_{L}^{CPL} in the Chevallier-Polarski-Linder parametrization(CPL) model. By comparing the efficiency and accuracy of the two algorithms, we find that the second is more promising. Moreover, we develop another strategy adapted for approximating d_{L}^Λ in flat LCDM universe. To some extent, our methods can make contributions to the recent numerical stimulation for the investigation of dark energy cosmology.
description: 12 pages, 3 figures, 3 tables, version accepted for publication in JCAP (http://iopscience.iop.org/1475-7516/2011/11/047)
title: Stroke in strategic locations, clinical and radiological correlation
Creators: name: Diaz Ibero, Gonzalo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Ischaemia / Infarction
subject: Education and training
subject: Education
subject: Diagnostic procedure
subject: CT-Angiography
subject: Neuroradiology brain
subject: Emergency
subject: Arteries / Aorta
subject: Neuro
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Give an easy clinical approach of less common stroke to Radiologist. Try to show and easy clinical and radiological correlation of some uncommon stroke...
title: Splenic Microabscess: a Rare Complication of Inmunocompromissed Patients.
Creators: name: Sandoval, Gonzalo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Not applicable
subject: Infection
subject: Abscess
subject: Contrast agent-intravenous
subject: Ultrasound
subject: MR
subject: CT
subject: Spleen
subject: Abdomen
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To exhibit a series of cases presented in our service. To show characteristic imaging findings of splenic microabscesses and their most frequent etiological...
Joint probability distributions and fluctuation theorems
Creators: name: García-García, Reinaldo
name: Lecomte, Vivien
name: Kolton, A. B.
name: Domínguez, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We derive various exact results for Markovian systems that spontaneously relax to a non-equilibrium steady-state by using joint probability distributions symmetries of different entropy production decompositions. The analytical approach is applied to diverse problems such as the description of the fluctuations induced by experimental errors, for unveiling symmetries of correlation functions appearing in fluctuation-dissipation relations recently generalised to non-equilibrium steady-states, and also for mapping averages between different trajectory-based dynamical ensembles. Many known fluctuation theorems arise as special instances of our approach, for particular two-fold decompositions of the total entropy production. As a complement, we also briefly review and synthesise the variety of fluctuation theorems applying to stochastic dynamics of both, continuous systems described by a Langevin dynamics and discrete systems obeying a Markov dynamics, emphasising how these results emerge from distinct symmetries of the dynamical entropy of the trajectory followed by the system For Langevin dynamics, we embed the "dual dynamics" with a physical meaning, and for Markov systems we show how the fluctuation theorems translate into symmetries of modified evolution operators.
description: 39 pages, 1 figure. Minor revision, as suggested by referees. A couple of references and equations added. Acknowledgements slightly modified
Double null formulation of the general Vaidya metric
Creators: name: Chirenti, Cecilia
name: Saa, Alberto
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present here the field equations describing a non-stationary spherically symmetric n-dimensional charged black hole with varying mass m(v) and/or electric charge q(v), described by a generic charged Vaidya metric with cosmological constant Lambda in double null coordinates. This formulation of the metric has been shown to be particularly useful for perturbative studies and it was used in some recent works. Here we also discuss some issues related to the apparent and event horizons of the black hole.
description: 13 pages, 5 figures, final version to appear in CQG
Disentangling multi-level systems: averaging, correlations and memory
Creators: name: Wouters, Jeroen
name: Lucarini, Valerio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Dynamical Systems (math.DS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider two weakly coupled systems and adopt a perturbative approach based on the Ruelle response theory to study their interaction. We propose a systematic way to parametrize the effect of the coupling as a function of only the variables of a system of interest. Our focus is on describing the impacts of the coupling on the long-term statistics rather than on the finite-time behaviour. By direct calculation, we find that, at first order, the coupling can be surrogated by adding a deterministic perturbation to the autonomous dynamics of the system of interest. At second order, there are additionally two separate and very different contributions. One is a term taking into account the second order contributions of the fluctuations in the coupling, which can be parametrized as a stochastic forcing with given spectral properties. The other one is a memory term, coupling the system of interest to its previous history, through the correlations of the second system. If these correlations are known, this effect can be implemented as a perturbation with memory on the single system. In order to treat this case, we present an extension to Ruelle's response theory able to deal with integral operators. We discuss our results in the context of other methods previously proposed to disentangle the dynamics of two coupled systems. We emphasize that our results do not rely on assuming a time scale separation, and, if such a separation exist, can be used equally well to study the statistics of the slow as well as that of the fast variables. By recursively applying the technique proposed here, we can treat the general case of multilevel systems.
title: Analysis of congenital Anomalies of the Aortic Arch using CT angiography
Creators: name: BADI, Fatima-ezzahare
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Cardiac
subject: Cardiovascular system
subject: Mediastinum
subject: CT
subject: CT-Angiography
subject: Echocardiography
subject: Education
subject: Shunts
subject: Technical aspects
subject: Aneurysms
subject: Arteriovenous malformations
subject: Education and training
subject: Retrospective
subject: Observational
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: List different aspects of congenital aortic arch anomalies in infants using Computed tomography angiography (CTA). Evaluate the use of CTA for the diagnosis of pediatric aortic arch...
Evidence for filamentary superconductivity nucleated at antiphase domain walls in antiferromagnetic CaFe$_2$As$_2$
Creators: name: Xiao, H.
name: Hu, T.
name: Dioguardi, A. P.
name: apRoberts-Warren, N.
name: Shockley, A. C.
name: Crocker, J.
name: Nisson, D. M.
name: Viskadourakis, Z.
name: Tee, Xianyang
name: Radulov, I.
name: Almasan, C. C.
name: Curro, N. J.
name: Panagopoulos, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Resistivity, magnetization and microscopic $^{75}$As nuclear magnetic resonance (NMR) measurements in the antiferromagnetically ordered state of the iron-based superconductor parent material CaFe$_2$As$_2$ exhibit anomalous features that are consistent with the collective freezing of domain walls. Below $T^*\approx 10$ K, the resistivity exhibits a peak and downturn, the bulk magnetization exhibits a sharp increase, and $^{75}$As NMR measurements reveal the presence of slow fluctuations of the hyperfine field. These features in both the charge and spin response are strongly field dependent, are fully suppressed by $H^*\approx 15$ T, and suggest the presence of filamentary superconductivity nucleated at the antiphase domain walls in this material.
description: 6pages, 6 figures