cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Compartment syndrome of the fibular nerve after trauma secondary to a ganglion cyst.
Creators: name: Di Serafino, Marco
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal system
subject: MR
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 45-year-old woman presented to the emergency department with acute right lower extremity paresthesias and tenderness at right fibular head after a previous skiing accident with axial rotation of the lower limb. There was swelling in the area of the fibular head and weakness in foot eversion and dorsiflexion

description: 45 years, female
title: Dedifferentiated spermatic cord liposarcoma
Creators: name: Molinari, Andrea
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: MR
subject: Diagnostic procedure
subject: Neoplasia
subject: Clinical Cases

description: Clinical History: In a 60-year-old man, physical examination revealed a deep-seated palpable nodule of right inguinal region. Laboratory findings were normal.

description: 60 years, male
Modelling of HVDC converters for real-time transient simulators
Creators: name: Acevedo, Salvador
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents developments in the computer modelling of High Voltage Direct Current (HVDC) converters and other FACTS devices for EMTP-type simulators. The high number and frequency of switching operations in power electronic converters cause numerical difficulties that require additional computational effort. The additional computational burden requires the development of techniques that can accelerate the simulation speeds of conventional electromagnetic transient modelling and may allow real-time simulations. The main results are two models that effectively reduce the computational time required to obtain the solution of an electrical network containing HVDC converters. Both approaches have in common the principle of subdividing an electrical circuit containing a 6«-valve converter into at least n subsystems. For each 6-valve subsystem, the 64 matrix combinations are precalculated and prestored in computer memory. The interaction between subsystems to obtain the network solution is particular to each approach. With this criterion, the number of precalculated combinations for a 24-valve HVDC substation is reduced from more than 16 million to only 256. Both models present a considerable reduction in the computational time required to simulate circuits containing HVDC converters. The most efficient model has been successfully implemented in the real time power systems simulator under development by the power research group at the University of British Columbia. The exact calculation of the network solution at switching events is another important aspect required to accurately simulate power electronic converters in power systems. The thesis proposes the zero crossing detection algorithm, which eliminates the erroneous delays present in traditional EMTP simulators. The proposed algorithm resynchronizes the solution to the original simulation time increment. To solve the problem originated by the forced commutation of Gate Turn Off Thyristors, an exploratory solution technique is proposed. This methodology eliminates the unrealistic voltage spikes that arise when chopping currents in discrete-time simulators. The resultant algorithm avoids the necessity of forcing the semiconductors to work as pairs, as some EMTP simulators solve the problem. Finally, the thesis includes a model for a Thyristor Controlled Reactor that maintains a constant conductance at switching operations, thus reducing the computational time when modelling Static Var Compensator substations.
Visual ecology of signals and receivers: skin coloration and intraretinal opsin distributions in Lake Malawi cichlids
Creators: name: Dalton, Brian E.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Cichlid
Coexpression
Color
Opsin
Plasticity
Visual Ecology

description: Visual communication contributes to speciation through sexual selection in numerous, distantly related taxa. Sexual selection favors signals that are conspicuous to the intended receiver. The diverse African cichlid fishes offer a rich opportunity for investigating diversification. Although male cichlids appear conspicuous to the human eye, the spectral sensitivity and photic environment of cichlids differ from ours. In my dissertation I investigate cichlid color signals and the sensitivities of the retinas receiving these signals. First I ask whether male colors appear more conspicuous than female colors to cichlids in their environment. I use simple models of cichlid color space to compare cichlid colors and backgrounds that I measure with a spectrometer. Results indicate male colors are typically more conspicuous than female colors, consistent with the selective forces thought to act on each sex. However, in some species female colors are conspicuous, highlighting the need for further study of cichlid behavior. To facilitate analysis of numerous colors and backgrounds, the models assume cichlids are trichromatic. However, cichlid sensitivity may be more complex. Cichlids are known to express up to eight different opsin proteins in one retina, and this expression is influenced by the rearing light environment. Opsins help determine the spectral sensitivity of the photoreceptors in which they reside, yet their distribution in cichlid retinas is unknown. Using in situ hybridization and microspectrophotometry, I show that the cichlid Metriaclima zebra mixes different pairs of opsins in retinal regions that view distinct backgrounds. Opsin mixing increases sensitivity to the corresponding backgrounds, potentially aiding detection of dark objects. This is the first documentation of spectral tuning by opsin coexpression. However, my calculations show that coexpression of some opsins can hinder color discrimination, creating a trade-off between visual functions. By rearing M. zebra in different light conditions I found that the location as well as the relative proportion of opsins in the retina can be influenced by the environment. This suggests that developmental plasticity of opsin expression may contribute to the spectral tuning of retinal regions. Cichlids demonstrate that retinal sensitivity can be spatially heterogeneous and plastic and may affect signal evolution in undocumented ways.
Letter from Colin C. MacRae to the Rainbow Ranche Ltd., April 25, 1910
Creators: name: MacRae, Colin C.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to the Rainbow Ranche from Colin C. MacRae, manager of the Royal Bank in Vernon, B.C., dated April 25, 1910, regarding notice that the interest on their call loan account is $6.65.
Predictors of Drinking and Alcohol-Related Problems in College Women: Affect Dysregulation and Alcohol Expectancies
Creators: name: Garay, Miranda Michele
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Psychology, Personality (0625)
Psychology, Behavioral (0384)
Gender Studies (0733)
affect dysregulation
alcohol expectancies
college women
trait affect
moderation
drinking

description: The current study investigated the influences of positive alcohol expectancies, affect dysregulation, and trait affect on drinking intensity and alcohol-related problems in college women. This study presumed that predictors for drinking intensity and alcohol-related problems would be similar, and that positive alcohol expectancies would moderate the relationship between affect dysregulation and drinking intensity and between affect dysregulation and alcohol-related problems. Participants were 150 college women (18-24 years old, 48.7% Caucasian). Self-report questionnaires and a discussion regarding drinking patterns over the past 90 days were completed. Positive alcohol outcome expectancies, affect dysregulation, and trait positive and negative affect were used to predict alcohol consumption (i.e., drinks per drinking day) and alcohol-related problems. Correlational and regression analyses indicated that for these women, only positive expectations accounted for a significant proportion of the variance in drinking intensity (p
RoadRunner: a fast and flexible exoplanet transit model
Creators: name: Parviainen, Hannu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: I present RoadRunner, a fast exoplanet transit model that can use any radially symmetric function to model stellar limb darkening while still being faster to evaluate than the analytical transit model for quadratic limb darkening by Mandel & Agol (2002). CPU and GPU implementations of the model are available in the PyTransit transit modelling package, and come with platform-independent parallelisation, supersampling, and support for modelling complex heterogeneous time series. The code is written in numba-accelerated Python (and the GPU model in OpenCL) without C or Fortran dependencies, which allows for the limb darkening model to be given as any Python-callable function. Finally, as an example of the flexibility of the approach, the latest version of PyTransit comes with a numerical limb darkening model that uses LDTk-generated limb darkening profiles directly without approximating them by analytical models.
description: Accepted to MNRAS
The Physiological, Ecological, and Evolutionary Basis of Polychromatic Ultraviolet Sensitivity In Stomatopod Crustaceans
Creators: name: Bok, Michael John
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Opsins
Optical filters
Stomatopods
Ultraviolet
Vision
Visual pigments

description: The eyes of stomatopods are the most functionally diverse photoreceptor array found in nature.  These marine crustaceans possess at least sixteen spectral types of photoreceptors, as well as sensitivity to various forms of polarized light.  These visual aptitudes are the product of a variety of unique anatomical, neurological, molecular, and optical modifications to the retina and optical components of the eye.  The sixteen peak sensitivities of their photoreceptors are spread evenly from 310 nm in the deep ultraviolet to 700 nm in the far-red.  While the optics, visual pigments, and behavioral sensitivity of these photoreceptors have been examined in great detail at human-visible wavelengths, little is known about the UV receptors beyond their electrophysiological spectral sensitivities.  Here, I present a physiological explanation for the five narrowly tuned ultraviolet receptor types in the retina of the stomatopod, Neogonodactylus oerstedii, including opsin transcript expression, visual pigment absorption, and the discovery of a unique ultraviolet-specific optical filter pigment set found in the crystalline cones of the midband.  Additionally, I present a survey of these filters in twenty-one additional species of stomatopods, including data on their diverse absorbance spectra, a reconstruction of their evolution in the order, and the factors influencing their spectral tuning.  Furthermore, this broad survey identifies additional ultraviolet filters in the peripheral ommatidia, suggesting an even greater level of photoreceptor spectral specialization than was previously estimated in these animals.  Finally, I present behavioral evidence for ultraviolet sensitivity in stomatopods, as well as ultraviolet reflectance patterns associated with their threat displays, that may represent a covert deep-ultraviolet communication system.
title: Loculated pseudomyxoma peritonei – an imaging mystery
Creators: name: Sambath, Pugazhendhi
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Abdominal imaging
subject: Genital / Reproductive system female
subject: Peritoneum
subject: CT
subject: Clinical Cases

description: Clinical History: A 44-year-old female presented with abdominal distension of 2 months duration which is insidious in onset and gradually progressive in nature. Physical examination revealed distended abdomen with an ill-defined non tender abdominopelvic mass.CA 125 was 60.1 U/ml.

description: 44 years, female
Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
Creators: name: D0 Collaboration
name: al, V. M. Abazov et
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: From an analysis of the flavor-tagged decay \bsdec we obtain the width difference between the $B_s^0$ light and heavy mass eigenstates, $ΔΓ_s \equiv Γ_L - Γ_H = 0.19 \pm 0.07 {\rm (stat)}\thinspace ^{+0.02}_{-0.01} {\rm (syst)}$ ps$^{-1}$, and the CP-violating phase, $ϕ_{s} =-0.57 ^{+0.24}_{-0.30} {\rm (stat)}\thinspace ^{+0.07}_{-0.02} {\rm (syst)}$. The allowed 90% C.L. intervals of $ΔΓ_s$ and $ϕ_s$ are $0.06
description: 7 pages, 2 figures
LISA observations of massive black hole mergers: event rates and issues in waveform modelling
Creators: name: Berti, Emanuele
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The observability of gravitational waves from supermassive and intermediate-mass black holes by the forecoming Laser Interferometer Space Antenna (LISA), and the physics we can learn from the observations, will depend on two basic factors: the event rates for massive black hole mergers occurring in the LISA best sensitivity window, and our theoretical knowledge of the gravitational waveforms. We first provide a concise review of the literature on LISA event rates for massive black hole mergers, as predicted by different formation scenarios. Then we discuss what (in our view) are the most urgent issues to address in terms of waveform modelling. For massive black hole binary inspiral these include spin precession, eccentricity, the effect of high-order Post-Newtonian terms in the amplitude and phase, and an accurate prediction of the transition from inspiral to plunge. For black hole ringdown, numerical relativity will ultimately be required to determine the relative quasinormal mode excitation, and to reduce the dimensionality of the template space in matched filtering.
description: 14 pages, 2 figures. Added section with conclusions and outlook. Matches version to appear in the proceedings of 10th Annual Gravitational Wave Data Analysis Workshop (GWDAW 10), Brownsville, Texas, 14-17 Dec 2005
title: Delayed thromboembolic risk in recovered Covid -19 patient, emerging evidence and call for action:Unusual imaging pattern of vascular disease in Covid treated patient.
Creators: name: Gupta, Reema
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Cardiovascular
subject: Extremities
subject: Interventional vascular
subject: CT-Angiography
subject: Ultrasound-Colour Doppler
subject: Thrombolysis
subject: Clinical Cases

description: Clinical History: We document a case of 55-year-old male recovered from covid-19, was admitted in ICU, treated symptomatically & given routine thrombosis prophylaxis was discharged after two negative RT-PCR reports again presented a week later with complaints of fever, breathlessness and bluish discolouration of lower limbs & had elevated D-dimer level

description: 55 years, male
title: Progression of COVID-19 pneumonia in chest CT scan
Creators: name: Chacón, Sergio
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Chest imaging
subject: Thorax
subject: CT
subject: Clinical Cases

description: Clinical History: A 62-year-old male patient who arrived at the emergency department presenting fever of 3 days (38.5ºC) and dry cough, no other symptoms associated. Co-morbidities: hypertension treated with valsartan. Negative PCR for influenza A and B.

description: 62 years, male
Eoincamys sp. Frailey & Campbell 2004
Creators: name: Assemat, Alexandre
name: Boivin, Myriam
name: Marivaux, Laurent
name: Pujos, François
name: Benites-Palomino, Aldo
name: Salas-Gismondi, Rodolfo
name: Tejada-Lara, Julia V.
name: Varas-Malca, Rafael M.
name: Negri, Francisco Ricardo
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Agoutidae
Eoincamys
Eoincamys sp.

description: Eoincamys sp.
(Fig. 3Q; Tableau 1)
MATÉRIEL. — MUSM-3532, fragment de molaire supérieure gauche (Fig. 3Q).
LOCALITÉ. —TAR-49, Juanjui, Département de San Martín, Pérou.
DESCRIPTION ET COMPARAISONS
 Ce fragment de dent est une partie antérieure d’une molaire supérieure gauche. L’émail est épais et les crêtes présentent une légère obliquité. Les cuspides sont marquées et forment l’élargissement terminal des crêtes. Du paracône descend un fort protolophe labial qui se connecte à une crestule cassée qui semble être la mure. Le protolophe lingual est incomplet, générant ainsi une pseudo-téniodontie de la dent (i.e., confluence sub-complète du paraflexus et de l’hypoflexus). Le protolophe lingual se décompose en un court bras postérieur du protocône et une autre crestule se développant depuis la mure. Ces deux structures semblent être connectées à leur base. L’antérolophe, épais et modérément recourbé, s’étend du protocône jusqu’au paracône, délimitant labialement le flexus antérieur (paraflexus + hypoflexus). Le bord labial de la dent présente un fort mésostyle, situé juste distalement au paracône. De ce style s’étend lingualement un court mésolophe. Nous attribuons ce fragment de dent à Eoincamys du fait de l’obliquité du protolophe et de la pseudo-téniodontie. Bien que MUSM- 3532 présente des crêtes obliques et des fosses profondes comme les spécimens de TAR-50 attribués à Eoincamys aff. pascuali, il diffère de ces derniers par une obliquité des crêtes moins importante. Compte tenu de son état fragmentaire et du manque de caractères spécifiques, nous rapportons ce spécimen à Eoincamys, mais le laissons en nomenclature ouverte.
description: Published as part of Assemat, Alexandre, Boivin, Myriam, Marivaux, Laurent, Pujos, François, Benites-Palomino, Aldo, Salas-Gismondi, Rodolfo, Tejada-Lara, Julia V., Varas-Malca, Rafael M. & Negri, Francisco Ricardo, 2019, Restes inédits de rongeurs caviomorphes du Paléogène de la région de Juanjui (Amazonie péruvienne): systématique, implications macro-évolutives et biostratigraphiques, pp. 699-730 in Geodiversitas 41 (20) on page 714, DOI: 10.5252/geodiversitas2019v41a20, http://zenodo.org/record/3695780
Developing Novel Materials that Capture a Alzheimer's Disease Associated Protein A? for Therapeutic & Detection Applications
Creators: name: Cowan, Christopher Brent
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Engineering, Chemical(0542)
Beta Amyloid
Sialic Acid
Multivalent
Surface Enhanced Raman
Photopolymerization
Self Assembled Monolyers

description: Since Alois Alzheimer first discovered the pathology of the disease bearing his appellation in 1906, the number of people diagnosed with Alzheimer's disease (AD) has been on the rise. AD is a progressive neurodegenerative disease and the most common cause of dementia in the US. In 2005 more than 4.5 millions people were reported to have AD. At the present time there is no cure or definitive diagnosis for AD. Upon autopsy, the disease can be diagnosed by the presence of senile plaques surrounded by dead or dying neurons in the cortex. The primary protein component found within the senile plaques is called ?-Amyloid peptide (A?). A? has been implicated as the neurotoxic agent in AD. As a potential strategy to either sequester A?, thereby preventing its neurotoxicity, or capture A? for the purpose of detection and disease diagnosis, new materials have been synthesized that bind A?. These materials are inspired by the cell surface molecules to which A? binds and contain multivalent sialic acid. Materials were tested in both toxicity prevention and detection assay formats. Mathematical models of A? interaction with materials were developed to explore the mechanism of action of these materials in toxicity prevention. Experimentally, materials were optimized for A? binding on a substrate appropriate for in vitro assay development. This work provides the foundation for the design of new therapeutic and diagnostic approaches for use in AD.
Dynamic nuclear polarization induced by hot electrons
Creators: name: Komori, Yosuke
name: Okamoto, Tohru
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A new method for local dynamic nuclear polarization is demonstrated in a GaAs/AlGaAs heterostructure at the Landau level filling factor $ν=3$. Using a narrow channel sample, where the width varies stepwise along the electron flow, we find that electron cooling (heating) causes the polarization of nuclear spins against (toward) the external magnetic field at liquid helium temperatures. The longitudinal nuclear spin relaxation rate varies exponentially with inverse temperature.
description: 3 pages, 3 figures
Recent divergence in the Orchard Oriole complex: using molecular genetics and vocalizations to examine species boundaries
Creators: name: Sturge, Rachel Jane
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Icterus fuertesi
Icterus spurius
molecular genetics
mtDNA paraphyly
speciation
vocalizations

description: Understanding species boundaries and the process of speciation is a fundamental part of understanding the biodiversity of the world around us.  Studies of recently diverged/diverging species can be used to examine species boundaries to better understand the nature of species/speciation.  Orchard Oriole (Icterus spurius) and Fuertes' Oriole (I. fuertesi) are sister taxa with different breeding grounds and different adult plumage coloration, yet their mtDNA are intermixed, indicating a possible recent divergence event.  I compared the molecular genetics (mtDNA and nuDNA) of both taxa and found that I. spurius and I. fuertesi are in the earliest stages of speciation - at a point where most neutral markers within their nuclear DNA do not yet reflect their divergence. As birdsong has the capability of diverging rapidly as two taxa speciate, I looked for evidence of divergence in the songs and jeet alarm calls of the two taxa.  My analyses failed to find fixed song differences, yet the jeet calls show differentiation in a number of acoustic characteristics, such as in call duration and number of parts of the call.  These differences may reflect ecological adaptation or divergence due to stochastic processes acting independently in these two taxa - indicating a degree of divergence between them. To test whether adult males were able to cue into subtle song variations that were not captured by the quantitative analyses, I conducted playback experiments on male I. spurius in Maryland - exposing focal males to homotypic songs (I. spurius), I. fuertesi songs and the songs of a negative control (I. galbula).  Focal males in these experiments reacted to both conspecific and I. fuertesi songs - indicating they are identifying I. fuertesi as a potential sexual competitor.  Thus, songs have not yet diverged enough that males no longer identify the other taxon's songs as potential sexual competition.  However, there is some evidence that males respond more weakly to I. fuertesi songs.  Regardless, song is likely not acting as a strong barrier to gene flow between these taxa.  This study indicates that these two taxa are likely in the earliest stages of speciation, making them a model system to understand the process of speciation.
title: Focal pachymeningitis in association with Sjögren’s syndrome
Creators: name: Zhang, Yue
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: CNS
subject: MR
subject: Inflammation
subject: Seizure disorders
subject: Clinical Cases

description: Clinical History: A 37-year-old male presented in the clinic with 3-month history of recurrent seizures which always started with left leg numbness and shaking, and then progressed to generalized tonic-clonic seizures. Lumbar puncture revealed opening pressure of 350mmH2O. CSF leukocytes count increased to 38×10^6/L. ANA was positive at 1:1000 dilution. Anti-SSA, Ro-52 and CCP antibodies were positive. RF, IgG4 and Anti-ANCA antibody were negative. Next generation sequencing of CSF for pathogen was negative. Malignant cells were not detected.

description: 37 years, male
A System for Studying the Molecular Genetics of Translational Accuracy
Creators: name: Kramer, Emily
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Biology, Molecular (0307)
translational accuracy

description: Misreading errors are one type of error that can occur during the translation of a messenger RNA into a protein. They occur when a mismatched base pair forms between the mRNA codon and a tRNA anticodon in the ribosomal A site during translation elongation, resulting in amino acid misincorporation. Estimates of misreading error frequencies vary from 10-3 to 10-4 per codon. The studies reporting these frequencies have measured several distinct errors using several different methods and reporter systems. Variation in reported misreading rates may reflect real differences in rates among the errors tested or in sensitivity of the reporter systems. To develop a more accurate understanding of the range of error rates, I developed an assay to measure the frequency of every possible misreading error at a defined codon. This system uses the essential lysine 529 in the active site of firefly luciferase. Mutations in this lysine result in up to a 1600-fold reduction in luciferase activity, but the phenotype varies with amino acid. I showed that residual activity of some of the mutant genes results from misreading of the mutant codons by tRNA(Lys) , the cognate tRNA for the lysine codons, AAA and AAG. I found that the error rates in both Escherichia coli and Saccharomyces cerevisiae do, in fact, vary widely. One source of variation is the effect of competition for decoding the mutant codons by cognate tRNAs; higher error frequencies result from lower competition from low-abundance tRNAs. I also used this assay to study the specific effects of ribosomal protein mutations and antibiotics known to affect error rates, finding that they affect misreading on only a subset of near-cognate codons and that their effect may be less general than previously thought.
Underpinning Theories of Software Engineering: Dynamism in Physical Sources of the Shannon Weaver Communication Model
Creators: name: Al-Fedaghi, Sabah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper aims to contribute to further understanding of dynamism (the dynamic behavior of system models) in the mathematical and conceptual modeling of systems. This study is conducted in the context of the claim that software engineering lacks underpinning scientific theories, both for the software it produces and the processes by which it does so. The research literature proposes that information theory can provide such a benefit for software engineering. We explore the dynamism expressive power of conceptual modeling as a software engineering tool that can represent physical systems in the Shannon Weaver communication model (SWCM). Specifically, the modeled source in the SWCM is a physical phenomenon (a change that can occur in the world, e.g., tossing a coin) resulting in generating observable events and data of unaddressed information. The resultant model reflects the feasibility of extending the SWCM to be applied in conceptual modeling in software engineering.
description: 16 figures, 12 pages
title: Multiple type germ cell tumor found in scrotal masses
Creators: name: Guia Yerovi, Cyndy Suzette
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: Ultrasound
subject: Genital / Reproductive system male
subject: Clinical Cases

description: Clinical History: A 36-year-old male was admitted to the emergency department with an intense sharp pain in the right testicle in the past 2-3 days which disturbed his sleep, scrotum redness and size enlargement of the right testicle for 2-3 months ago which had been followed by his general physician.

description: 36 years, male
Influence of ion induced secondary electron emission on the stability of ionisation vacuum gauges
Creators: name: Figueiredo, I.
name: Bundaleski, N.
name: Teodoro, O. M. N. D.
name: Jousten, K.
name: Illgen, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Surface modification of different materials exposed to an environment typical for hot cathode ionisation vacuum gauges was investigated. Such environment has been generated in a specially designed setup which simulates conditions in a Bayard-Alpert ionisation vacuum gauge. Characterisations by means of X-ray photoelectron spectroscopy and work function study have been performed before and after the sample exposure to Ar and H2 gas discharges. The majority of studied materials, such as molybdenum, gold or stainless steel, are considered to be of interest as ion collectors. In addition, experiments with copper and graphite revealed the major processes that are taking place during the exposure to an ionisation vacuum gauge environment. Since the stability of ionisation vacuum gauges can be affected by the change of secondary electron emission properties of ion collectors during the operation, the corresponding electron yield induced by bombardment of low energy Ar+ ions was measured. Results show that exposure to ionisation vacuum gauge environment contributes to development of hydrocarbon layers, independently from the collector material or the dominant species in the gas discharge. Therefore, ion induced secondary electron yield of clean materials will be changing during the gauge operation and eventually reach saturation regardless of the collector material. The results also show that the hydrocarbon layer cannot be desorbed by standard vacuum baking procedures, whilst ion bombardment will even increase the rate of the hydrocarbon layer formation.
description: accepted to Vacuum on 7th of November 2020
Quantum Correlation Bounds for Quantum Information Experiments Optimization: the Wigner Inequality Case
Creators: name: Bovino, F. A.
name: Degiovanni, I. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Violation of modified Wigner inequality by means binary bipartite quantum system allows the discrimination between the quantum world and the classical local-realistic one, and also ensures the security of Ekert-like quantum key distribution protocol. In this paper we study both theoretically and experimentally the bounds of quantum correlation associated to the modified Wigner's inequality finding the optimal experimental configuration for its maximal violation. We also extend this analysis to the implementation of Ekert's protocol.
Local scale invariance in the parity conserving nonequilibrium kinetic Ising model
Creators: name: Odor, Geza
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The local scale invariance has been investigated in the nonequilibrium kinetic Ising model exhibiting absorbing phase transition of PC type in 1+1 dimension. Numerical evidence has been found for the satisfaction of this symmetry and estimates for the critical ageing exponents are given.
description: 8 pages, 2 figures (IOP format), final form to appear in JSTAT
MOLECULAR DETERMINANTS OF MELANOPSIN SIGNALING AND DEACTIVATION
Creators: name: Cameron, Evan G.
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Arrestin
Calcium Imaging
Deactivation
GPCR Signaling
Melanopsin
Phosphorylation

description: The unique visual pigment melanopsin is expressed in a small subset of intrinsically photosensitive retinal ganglion cells (ipRGCs) within the mammalian retina.  The axons of ipRGCs primarily project to brain nuclei that regulate non-image forming visual functions including circadian photoentrainment, pupillary light reflex, and sleep.  Unlike rods and cones which hyperpolarize in response to light, ipRGCs depolarize likely through the activation of a Gq-mediated phototransduction cascade.  IpRGCs exhibit very poor temporal resolution with sluggish on/off kinetics and a high threshold of activation.  Despite this, ipRGCs respond robustly to prolonged illumination and are capable of firing sustained action potentials beyond the lifetime of the stimulus.  These response characteristics raise questions about how melanopsin signaling is regulated within the retina.  Typically, visual pigment signaling is deactivated by receptor phosphorylation and arrestin binding which act to attenuate and inhibit G-protein binding, respectively.  In this work, I investigate the role of arrestin in melanopsin signaling and identify a region within the C-terminal tail of melanopsin that is required for proper activation and deactivation.  Using a combination of in vitro and in vivo approaches, I provide evidence for a light- and phosphorylation-dependent deactivation of melanopsin by Beta-arrestin.  This work is the first description of a visual pigment deactivation mechanism mediated by Beta-arrestin and is consistent with canonical deactivation mechanism described for other non-visual G-protein coupled receptors (GPCRs).  Additionally, I demonstrate that removal or mutation of a region within the proximal portion of melanopsin's C-tail delays the activation and deactivation of the photoresponse.  I also show that this region is conserved within the melanopsin family implying important functional significance.  Based on these results, I hypothesize that a 9th helix in the C-tail of melanopsin serves two purposes; 1) to stabilize ICL3 and form a portion of the G-protein binding domain and 2) to tether the C-tail close to the membrane surface, facilitating receptor phosphorylation and arrestin binding.
Some Features of the Glasma
Creators: name: Lappi, T.
name: McLerran, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss high energy hadronic collisions within the theory of the Color Glass Condensate. We point out that the initial electric and magnetic fields produced in such collisions are longitudinal. This leads to a novel string like description of the collisions, and a large Chern-Simons charge density made immediately after the collision. The presence of the longitudinal magnetic field suggests that essential to the description of these collisions is the decay of Chern-Simons charge.
description: 17 pages, 5 figures. V2: references added and corrected
title: Extratesticular intrascrotal epidermoid cyst.
Creators: name: Sorial, Asaad
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 54-year-old male patient presented with scrotal pain of long duration more on the left side. There is also intermittent sense of heaviness of the scrotum. He provided history of operated right inguinal hernia years ago.

On local examination there is a left sided varicocele and a right sided mobile small scrotal nodule firm in consistency and non-tender.

description: 54 years, male
Ökumenische Ausbildung als Kernanliegen der kirchlich-theologischen Stipendienarbeit von Brot für die Welt
Creators: name: Arion, Dionisie
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 67 Nr. 2 (2018): Ökumenische Rundschau, Band 67, Heft 2
Black hole bound states in AdS_3 x S^2
Creators: name: de Boer, Jan
name: Denef, Frederik
name: El-Showk, Sheer
name: Messamah, Ilies
name: Bleeken, Dieter Van den
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We systematically construct the geometries dual to the 1+1 dimensional (0,4) conformal field theories that arise in the low-energy description of wrapped M5-branes in S^1 x CY_3 compactifications of M-theory. This includes a large number of multicentered black hole bound states asymptotic to AdS_3 x S^2. In addition, we find many geometries that develop multiple, mutually decoupled AdS_3 x S^2 throats. We argue there is a useful one to one correspondence between the connected components of the space of solutions and particular limits of type IIA attractor flow trees. We point out that there is a thermodynamic instability of small supersymmetric BTZ black holes to localization on the S^2, a supersymmetric and exactly solvable analog of the well known AdS-Schwarzschild localization instability, and identify this with the ``Entropy Enigma'' in four dimensions. We discuss the phase transition this suggests, and initiate the CFT interpretation of these results.
Predictors of delinquency in adolescent girls
Creators: name: Nail, Jennifer
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Psychology, Clinical (0622)
girls
antisocial behavior
delinquency
gender differences

description: Rising arrest rates among girls suggest that there may be gender differences in terms of risk factors for antisocial behavior. The present study examines whether peer rejection and negative life events significantly predict symptoms of conduct disorder, dysthymia and major depression in boys and girls. The interaction between gender and peer rejection and negative life events is also examined. Finally, the association between early conduct symptoms and later depressive symptoms is explored for boys and girls. A small but significant effect was found for peer rejection predicting dysthymic symptoms for girls. Implications for future research and for prevention and intervention are discussed.
Global Ecumenicl Theological Institute (GETI) - Frischer Wind auf dem gemeinsamen ökumenischen Weg
Creators: name: Simon, Benjamin
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 67 Nr. 2 (2018): Ökumenische Rundschau, Band 67, Heft 2
title: A rare case of renal hydatid cyst
Creators: name: Maravi, Poornima
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Abdomen
subject: Kidney
subject: CT
subject: Ultrasound
subject: Cysts
subject: Clinical Cases

description: Clinical History: A 53-year-old male presenting with long-standing, dull aching pain in the bilateral lumbar region with foul-smelling urine and burning micturition. Physical examination revealed mild pallor. Routine blood picture showed mild microcytic anaemia. 

description: 53 years, male
Scaling limit for trap models on $\mathbb{Z}^d$
Creators: name: Arous, Gérard Ben
name: Černý, Jiří
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K37, 60G52, 60F17 (Primary); 82D30 (Secondary)

description: We give the ``quenched'' scaling limit of Bouchaud's trap model in ${d\ge 2}$. This scaling limit is the fractional-kinetics process, that is the time change of a $d$-dimensional Brownian motion by the inverse of an independent $α$-stable subordinator.
description: Published in at http://dx.doi.org/10.1214/009117907000000024 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
An H₂¹⁸O water target for the production of ¹⁸F-fluoride in the TR-13 cyclotron
Creators: name: Pavan, Roberto A.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents the design, operation, performance and heat transfer modeling of a ¹⁸F production target for the EBCO/TRIUMF TR-13 cyclotron. This target employs the ¹⁸O(p,n) ¹⁸F reaction in ¹⁸0-enriched water. Positron emission tomography (PET) depends upon the availability of short-lived positron-emitting radionuclides, such as, ¹¹C, ¹³N, ¹⁵O, for radiopharmaceutical syntheses. Among the most important of these radionuclides is ¹⁸F (t1/2=109.6 min). It is almost exclusively produced in small medical cyclotrons by proton bombardment of isotopically enriched ¹⁸O-water in small volume targets. Production targets are required that can produce large quantities reliably, efficiently and economically. A key design component in such targets is the dissipation of heat generated as the proton beam is stopped within the target material. In order to better understand the heat transfer mechanisms involved and their relation to production target design, an ¹⁸F production target was constructed and a heat transfer model based on measurements was developed. The results derived from the model were in good agreement with the data from the irradiation experiments, in particular in the higher current regions that are required for high yield ¹⁸F production. It is believed that the target discussed here can be successfully used in the routine production of ¹⁸F in sufficient quantities and of adequate quality for in vivo applications.
PREDICTORS AND OUTCOMES OF ADOLESCENT SELF-EFFICACY BELIEFS: AN ANALYSIS OF INDIVIDUAL, PEER, FAMILY, AND NEIGHBORHOOD LEVEL VARIABLES
Creators: name: Ozdemir, Metin
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: adolescence
neighborhood
project in human development in chicago neighborhoods
self-efficacy

description: Adolescence is a period when young individuals face many challenging tasks.  These include becoming resilient in the face of adversities, establishing and maintaining healthy relationships, achieving in school, and preparing for adult life.  Self-efficacy beliefs are important to youth's success in accomplishing these tasks.  Specifically, consistent with the premises of Bandura's Self-Efficacy Theory, ample evidence suggests that self-efficacy beliefs are highly critical in task selection, persistence, and successful completion.  Nevertheless, few studies to date have examined the predictors of self-efficacy beliefs, or the role of efficacy beliefs in mediating the relationship between contextual factors and positive developmental outcomes. Three interrelated studies were conducted to examine 1) the structure of a multidimensional self-efficacy measure (Study I), 2) the individual, family, peer, and neighborhood predictors of adolescents' domain specific self-efficacy beliefs (Study II), and 3) the mediating role of domain specific self-efficacy beliefs in predicting adolescents' developmental outcomes (Study III).  All three studies relied on a secondary analysis of the Project in Human Development in Chicago Neighborhoods (PHDCN) data set.  Specifically, surveys of youth aged 10-19, and systematic social observations conducted to measure neighborhood physical and social disorganization were examined. The findings of Study I (N = 1,487) provided evidence for the multidimensional structure of the self-efficacy measure, consistent with the original premises of Self-Efficacy Theory.  The findings of Study II (N = 1,015) suggested that family environment and peer relations are the most consistent predictors of adolescents' domain-specific self-efficacy beliefs, while individual characteristics and neighborhood context exerted influence on specific domains only.  The pattern of different predictors being linked to different self-efficacy domains underscores the importance of the multidimensional structure of self-efficacy beliefs, and the complexity of relationships between sources of influence, across levels and domains of self-efficacy beliefs.  The findings of Study III provided evidence for the mediating role of domain specific self-efficacy beliefs. Overall, the findings underscore the importance of examining predictors and outcomes of self-efficacy beliefs in multiple domains using a multidimensional measure of efficacy beliefs.
Electron self-trapping at quantum and classical critical points
Creators: name: Auslender, M. I.
name: Katsnelson, M. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using Feynman path integral technique estimations of the ground state energy have been found for a conduction electron interacting with order parameter fluctuations near quantum critical points. In some cases only \textit{singular} perturbation theory in the coupling constant emerges for the electron ground state energy. It is shown that an autolocalized state (quantum fluctuon) can be formed and its characteristics have been calculated depending on critical exponents for both weak and strong coupling regimes. The concept of fluctuon is considered also for the classical critical point (at finite temperatures) and the difference between quantum and classical cases has been investigated. It is shown that, whereas the quantum fluctuon energy is connected with a true boundary of the energy spectrum, for classical fluctuon it is just a saddle-point solution for the chemical potential in the exponential density of states fluctuation tail.
description: 45 pages, 1 eps figure, elsart, submitted to Annals of Physics
Separating physically distinct mechanisms in complex infrared plasmonic nanostructures via machine learning enhanced electron energy loss spectroscopy
Creators: name: Kalinin, Sergei V.
name: Roccapriore, Kevin M.
name: Cho, Shin Hum
name: Milliron, Delia J.
name: Vasudevan, Rama
name: Ziatdinov, Maxim
name: Hachtel, Jordan A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Low-loss electron energy loss spectroscopy (EELS) has emerged as a technique of choice for exploring the localization of plasmonic phenomena at the nanometer level, necessitating analysis of physical behaviors from 3D spectral data sets. For systems with high localization, linear unmixing methods provide an excellent basis for exploratory analysis, while in more complex systems large numbers of components are needed to accurately capture the true plasmonic response and the physical interpretability of the components becomes uncertain. Here, we explore machine learning based analysis of low-loss EELS data on heterogeneous self-assembled monolayer films of doped-semiconductor nanoparticles, which support infrared resonances. We propose a pathway for supervised analysis of EELS datasets that separate and classify regions of the films with physically distinct spectral responses. The classifications are shown to be robust, to accurately capture the common spatiospectral tropes of the complex nanostructures, and to be transferable between different datasets to allow high-throughput analysis of large areas of the sample. As such, it can be used as a basis for automated experiment workflows based on Bayesian optimization, as demonstrated on the ex situ data. We further demonstrate the use of non-linear autoencoders (AE) combined with clustering in the latent space of the AE yields highly reduced representations of the system response that yield insight into the relevant physics that do not depend on operator input and bias. The combination of these supervised and unsupervised tools provides complementary insight into the nanoscale plasmonic phenomena.