cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integral-field spectroscopy of (90482) Orcus-Vanth
Creators: name: Carry, B.
name: Hestroffer, D.
name: DeMeo, F.
name: Thirouin, A.
name: Berthier, J.
name: Lacerda, P.
name: Sicardy, B.
name: Doressoundiram, A.
name: Dumas, C.
name: Farrelly, D.
name: Muller, T. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims. We seek to constrain the surface composition of the Trans-Neptunian Object (90482) Orcus and its small satellite Vanth, as well as their mass and density. Methods. We acquired near-infrared spectra (1.4-2.4 μm) of (90482) Orcus and its companion Vanth using the adaptive-optics-fed integral-field spectrograph SINFONI mounted on Yepun/UT4 at the European Southern Observatory Very Large Telescope. We took advantage of a very favorable appulse (separation of only 4") between Orcus and the UCAC2 29643541 star (R = 11.6) to use the adaptive optics mode of SINFONI, allowing both components to be spatially resolved and Vanth colors to be extracted independently from Orcus. Results. The spectrum of Orcus we obtain has the highest signal-to-noise ratio to date, and we confirm the presence of H2O ice in crystalline form, together with the presence of an absorption band at 2.2 μm. We set an upper limit of about 2% for the presence of methane, and 5% for ethane. Because the methane alone cannot account for the 2.2 μm band, the presence of ammonia is suggested to the level of a couple of percent. The colors of Vanth are found slightly redder than those of Orcus, but the large measurement uncertainties forbid us from drawing conclusions on the origin of the pair (capture or co-formation). Finally, we reset the orbital phase of Vanth around Orcus, and confirm the orbital parameters derived by Brown et al. (2010, AJ 139).
description: 9 pages, 6 figures, 6 tables, accepted for publication in A&A
Exploring potential moderators of the relationship between perceptions of organizational politics and its outcomes
Creators: name: Wiltshire, Jocelyn
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 52-60
description: Includes copy of ethics approval. Original copy with original Partial Copyright Licence.
description: While there is extensive research demonstrating that employee perceptions of politics are related to a number of negative workplace outcomes, there is little attention given to the possibility that these relationships may be moderated by a number of factors related to the perception an individual has towards his/her situation at work and of his/her abilities or skills to function successfully within it. The present study sought to investigate how certain dispositional and behavioural tendencies may influence employee attitudes and behaviours when perceiving their organization to be political. Data was collected online and cross-nationally from 268 full-time employees with varying vocational backgrounds. Results indicated that the adverse effect of POP on its outcomes is exacerbated for those employees who are willing to engage in political behavior (low Honesty-Humility), as well as those who actually do (high impression managers). Implications of these findings are discussed.
The contribution of pelvic muscle and ligament weaknesses to the development of stress urinary incontinence
Creators: name: Yip, Clare
Publisher: name: University of British Columbia
Year: 2011

description: The symptoms of Stress Urinary Incontinence (SUI) and Pelvic Organ Prolapse (POP) are incited by strenuous activities, such as a valsalva maneuver, cough or lifting heavy objects. SUI is characterized by weakened bladder neck support and urine leakage. POP is characterized by the displacement of pelvic organs into the vaginal space. In women, the symptoms of SUI and POP often coexist, yet their relationship remains ambiguous. The POP-related defects that are relevant to SUI are unknown and are yet to be examined. Damages in pelvic floor muscles and cardinal and uterosacral ligaments are potential defects leading to SUI, since they are commonly found in SUI patients with POP symptoms. These defects can be objectively evaluated using Pelvic Muscle Strength test and Pelvic Organ Prolapse Quantification (POPQ) test. This study aims to explore the contribution of pelvic muscle and ligament weaknesses to the development of SUI by developing a biomechanical model of a female pelvic support system. The model simulates the behavior of a pelvic system during a valsalva maneuver, and it incorporates muscle strength score and POPQ points. Patient data were collected and implemented into the model to estimate the material parameters that describe the stiffness properties of the vaginal and ligament tissues for clinical patients. Using the model with parameters, the effect of varied degree of muscular and ligament weaknesses on the changes in the bladder neck and apical vaginal supports were assessed for the patients. The estimated vaginal and ligament parameters were shown to vary, illustrating the diverse material properties of pelvic tissues in individuals. In modeling, simulated conditions of defective muscles and ligaments were demonstrated to contribute to bladder neck and vaginal apex prolapse, consistent with the clinical conditions of POP; alternatively, simulated conditions of restored muscular and ligament supports were shown to help re-establish both bladder neck and vaginal apex supports. The results exhibit the impact of compromise of pelvic muscles and ligaments on the development of SUI and vaginal apex prolapse and suggest a mechanism of how pelvic muscles and vaginal apex rehabilitation impact SUI and vaginal apex supports in patients with coexisting POP symptoms.
MPEC 2025-C115 : 2025 CG2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 CG2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Caudal regression syndrome: a review for the radiologist.
Creators: name: Cruz Marmolejo, Miguel
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Congenital
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Conventional radiography
subject: Paediatric
subject: Neuroradiology spine
subject: Musculoskeletal system
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review the epidemiology and spectrum of findings in caudal regression syndrome (CRS). CRS spectrum of findings including sacral agenesis, genitourinary and associated abnormalities assessment with conventional radiography, ultrasound, tomography,and...
title: Carbon tetrachloride removal from a hetrogeneous porous medium by two soil vapor extraction techniques
title: Hydrology days 2005
titleType: AlternativeTitle
title: AGU hydrology days 2005
titleType: AlternativeTitle
Creators: name: Oostrom, M.
name: Dane, J. H.
name: Wietsma, T. W.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2005

description: 2005 annual AGU hydrology days was held at Colorado State University on March 7 - March 9, 2005.
description: Includes bibliographical references.
description: An intermediate-scale flow cell experiment was conducted to study the removal of a DNAPL mixture from a layered porous medium through soil vapor extraction (SVE) with moist and dry air. A dual-energy gamma radiation system was used at various times to non-intrusively determine fluid saturations. The mixture, which contained the volatile organic carbon tetrachloride, mimics the DNAPL disposed at the Hanford Site in Washington State. The flow cell was packed with two sloped coarse sand and two sloped silt layers in an otherwise uniform matrix of medium-grained sand. The water table was located 2 cm from the bottom, creating variably saturated conditions. A spill was introduced at the top of the flow cell from a small source area. It was observed that the DNAPL largely by-passed the silt layers but easily moved into the coarse sand layers. Residual DNAPL was formed in the medium-grained sand matrix. The DNAPL caused a distinct reduction of the capillary fringe. Most of the DNAPL ended up in a pool. Soil vapor extraction with moist air was not able to remove the carbon tetrachloride from the silt layers and the pool. Through a water table reduction and subsequent soil vapor extraction with dry air, the carbon tetrachloride in the silt layers and the pool was effectively removed. It was estimated that after the final remediation treatment, almost 90% of the total mass was removed.
The central dark matter distribution of NGC 2976
Creators: name: Adams, Joshua J.
name: Gebhardt, Karl
name: Blanc, Guillermo A.
name: Fabricius, Maximilian H.
name: Hill, Gary J.
name: Murphy, Jeremy D.
name: Bosch, Remco C. E. van den
name: van de Ven, Glenn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the mass distribution in the late-type dwarf galaxy NGC 2976 through stellar kinematics obtained with the VIRUS-P integral-field spectrograph and anisotropic Jeans models as a test of cosmological simulations and baryonic processes that putatively alter small-scale structure. Previous measurements of the H-alpha emission-line kinematics have determined that the dark matter halo of NGC 2976 is most consistent with a cored density profile. We find that the stellar kinematics are best fit with a cuspy halo. Cored dark matter halo fits are only consistent with the stellar kinematics if the stellar mass-to-light ratio is significantly larger than that derived from stellar population synthesis, while the best-fitting cuspy model has no such conflict. The inferred mass distribution from a harmonic decomposition of the gaseous kinematics is inconsistent with that of the stellar kinematics. This difference is likely due to the gas disk not meeting the assumptions that underlie the analysis such as no pressure support, a constant kinematic axis, and planar orbits. By relaxing some of these assumptions, in particular the form of the kinematic axis with radius, the gas-derived solution can be made consistent with the stellar kinematic models. A strong kinematic twist in the gas of NGC 2976's center suggests caution, and we advance the mass model based on the stellar kinematics as more reliable. The analysis of this first galaxy shows promising evidence that dark matter halos in late-type dwarfs may in fact be more consistent with cuspy dark matter distributions than earlier work has claimed.
description: 20 pages, 15 figures, accepted by ApJ
title: Incidental extraspinal findings in the lumbar spine during magnetic resonance imaging of intervertebral discs
Creators: name: Zidan, Mogahid
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: MRI
subject: Musculoskeletal spine
subject: MR
subject: Education
subject: Pathology
subject: Prospective
subject: Not applicable
subject: Multicentre study

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: This study was designed with the aim of calculating the frequencies with which incidentally detected pathological extraspinal findings, congenital anomalies, and anatomical differences are detected on the MRI scans of the intervertebral discs of the...
title: Spring ligament complex and medial supporting structures: Imaging anatomy and current concepts in adult acquired flatfoot deformity (AAFD)
Creators: name: Pillay, Gavin
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Trauma
subject: Inflammation
subject: Athletic injuries
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: Conventional radiography
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: Extremities
subject: Musculoskeletal
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review the ultrasound and MR imaging anatomy and pathology of the spring ligament complex and adjacent medial supporting structures. Discuss the current concepts and imaging findings in adult acquired flatfoot deformity...
title: The CT and MRI Features of Chromophobe Renal Cell Carcinoma with Radiologic-Pathologic Correlations with Emphasis on Atypical Features
Creators: name: Kazawa, Nobukata
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Pathology
subject: Neoplasia
subject: Education
subject: MR
subject: CT
subject: Kidney
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Chromophoberenalcellcarcinoma(Ch-RCC)is a reratively raresubtypeof RCC Fig 2 . We would like to exhibit the common Fig 12 and atypical features of CT/MRI imges of surgically treated Ch-RCC cases ,in which the imaging findings were analyzed in detail...
An Experimental Study of an Electro-Optical Displacement Sensor
Creators: name: Feng, Maria Q.
Publisher: name: Columbia University
Year: 1996
Subjects: subject: Civil engineering
subject: FOS: Civil engineering
subject: Mechanical engineering
subject: FOS: Mechanical engineering

description: This paper presents the results of an experimental study on an innovative electro-optical fiber sensor developed for measuring the dynamic response of civil structures such as buildings and bridges, which can be used for non-destructive evaluation of structural systems. This electro-optical sensor employs an electric circuit, LC oscillator, in which inductance and capacitance are connected in parallel. The resonant frequency of the LC oscillator is modulated by the external displacement transmitted through the core of the induction solenoid. This frequency is detected from the optically-transmitted oscillatory signal and the LC oscillator is optically powered. Compared to the conventional optical fiber sensors developed so far, the proposed sensor has two significant advantages: 1) the sensing head is an electric circuit (rather than an optical fiber cable), which can sense a specific physical quantity without interference from miscellaneous effects and is expected to be much more durable than the sensing head made of optical fiber cable as seen in usual extrinsic optical fiber sensors; 2) the LC oscillator is a well understood and reliable circuit with its resonant frequency measurable and transmittable without attenuation or distortion through an optical fiber cable over a long distance to recording and other devices. These advantages make the sensor extremely simple to design and manufacture, durable, reliable, robust to use, and hence, more readily deployable in civil structural applications. A prototype electro-optical strain sensor has been developed and its static and dynamic characteristics were experimentally tested. This sensor was also installed on a steel frame to measure the dynamic strain response when subjected to seismic ground motions during a shaking table test. The experimental study using the prototype demonstrated excellent performance of the electro-optical sensor in terms of accuracy, wide frequency range, and other advantageous characteristics for civil structural applications.
title: Encrusted pyelitis: an important cause of acute renal failure with a clearly increasing incidence.
Creators: name: Menéndez Fernández-Miranda, Pablo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Calcifications / Calculi
subject: Diagnostic procedure
subject: Complications
subject: Ultrasound
subject: CT
subject: Urinary Tract / Bladder
subject: Kidney
subject: Emergency
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the pathogenesis of encrusted pyelitis. To explain the main radiological features of encrusted pyelitis and imaging modalities for a prompt diagnosis. To underline the importance of the radiologist in the diagnosis and prognosis of...
Women with Pregnancies Had Lower Adherence to 1% Tenofovir Vaginal Gel as HIV Preexposure Prophylaxis in CAPRISA 004, a Phase IIB Randomized-Controlled Trial
Creators: name: Matthews, Lynn T.
name: Sibeko, Sengeziwe
name: Mansoor, Leila E.
name: Yende-Zuma, Nonhlanhla
name: Bangsberg, David R.
name: Abdool Karim, Quarraisha
Publisher: name: Columbia University
Year: 2013
Subjects: Medicine
Obstetrics
Gynecology
Public health

description: Background: Antiretroviral prophylaxis may be a critical strategy to reduce periconception HIV transmission. Maximizing the benefit of periconception pharmacologic HIV risk-reduction requires an understanding of the links between pregnancy and adherence to this prevention strategy.
Methods: We assessed study gel adherence among women with pregnancies compared to women without pregnancies enrolled in the CAPRISA 004 phase IIB trial of 1% vaginal tenofovir gel. Pregnancy was assessed with monthly urine tests. Adherence was measured monthly and defined as proportion of sex acts covered by two returned, used applicators based on pre- and post-coital dosing. High adherence was defined as a median adherence score of greater than 80%, that is, more than 80% of sex acts were covered by two applications of study gel. A multivariate generalized estimating equations (GEE) model with a binomial distribution was used to assess covariates associated with high adherence (greater than 80%) over time. Median adherence before and after pregnancy was compared using Wilcoxon signed rank test.
Results: Among 868 women, 53 had at least 1 pregnancy (4.06 per 100 woman years, 95% CI: 3.04, 5.31). Women with pregnancies had lower median adherence compared to women without pregnancies (50% [IQR: 45–83] vs. 60% [IQR: 50–100], p = 0.02). Women with pregnancies also had a 48% lower odds of high adherence compared to women without pregnancies when adjusting for confounders (aOR 0.52, 95%CI: 0.41–0.66, p less than 0.0001). Among women with pregnancies, adherence before and after pregnancy was not different (50% [IQR: 46–83] vs. 55% [IQR: 20–100], p = 0.68).
Conclusions: Women with pregnancies were less likely to have high adherence to study gel compared to women without pregnancies. Understanding these differences may inform findings from HIV prevention trials and future implementation of antiretroviral prophylaxis for at-risk women who choose to conceive. The protocol for the parent trial is registered on ClinicalTrials.gov, NCT00441298, http://www.clinicaltrials.gov/ct2/show/N​CT00441298.
title: Smoking Related Interstitial Lung Disease: A Practical Approach.
Creators: name: Vega, Miguel
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Inflammation
subject: Localisation
subject: Computer Applications-General
subject: CT
subject: Conventional radiography
subject: Lung
subject: Chest
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the clinical features and spectrum of imaging findings of the smoking-related interstitial lung diseases. To present an anatomic and segmental initial approach to narrow the differentials in the HRCT. To identify the principal HRCT...
title: Median Arcuate Ligament Syndrome (MALS): contribution of CT Angiography
Creators: name: Bentaleb, Daoud
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Abdominal Viscera
subject: Abdomen
subject: Vascular
subject: CT-Angiography
subject: Diagnostic procedure
subject: Pathology
subject: Not applicable
subject: Diagnostic or prognostic study
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The Median Arcuate Ligament Syndrome (MALS) is a rare, controversial condition, caused by the compression of the celiac axis by the median arcuate ligament. The aim of this work is to show the contribution of CT Angiography with three-dimensional...
Differential Intrahepatic Phospholipid Zonation in Simple Steatosis and Nonalcoholic Steatohepatitis
Creators: name: Wattacheril, Julia
name: Seeley, Erin H.
name: Angel, Peggi
name: Chen, Heidi
name: Bowen, Benjamin P.
name: Lanciault, Christian
name: Caprioli, Richard M.
name: Abumrad, Naji
name: Flynn, Charles Robb
Publisher: name: Columbia University
Year: 2013
Subjects: Medicine
Biochemistry
Pathology

description: Nonalcoholic fatty liver disease (NAFLD) occurs frequently in a setting of obesity, dyslipidemia and insulin resistance, but the etiology of the disease, particularly the events favoring progression to nonalcoholic steatohepatitis (NASH) as opposed to simple steatosis (SS), are not fully understood. Based on known zonation patterns in protein, glucose and lipid metabolism, coupled with evidence that phosphatidylcholine may play a role in NASH pathogenesis, we hypothesized that phospholipid zonation exists in liver and that specific phospholipid abundance and distribution may be associated with histologic disease. A survey of normal hepatic protein expression profiles in the Human Protein Atlas revealed pronounced zonation of enzymes involved in lipid utilization and storage, particularly those facilitating phosphatidylcholine (PC) metabolism. Immunohistochemistry of obese normal, SS and NASH liver specimens with anti-phosphatidylethanomine N-methyltransferase (PEMT) antibodies showed a progressive decrease in the zonal distribution of this PC biosynthetic enzyme. Phospholipid quantitation by liquid chromatography mass spectrometry (LC-MS) in hepatic extracts of Class III obese patients with increasing NAFLD severity revealed that most PC species with 32, 34 and 36 carbons as well as total PC abundance was decreased with SS and NASH. Matrix assisted laser desorption ionization - imaging mass spectrometry (MALDI-IMS) imaging revealed strong zonal distributions for 32, 34 and 36 carbon PCs in controls (minimal histologic findings) and SS that was lost in NASH specimens. Specific lipid species such as PC 34:1 and PC 36:2 best illustrated this phenomenon. These findings suggest that phospholipid zonation may be associated with the presence of an intrahepatic proinflammatory phenotype and thus have broad implications in the etiopathogenesis of NASH.
title: Pelvic Congestion Syndrome: An overview of Venography Findings and Endovascular Treatment
Creators: name: Serrano, Maria
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Varices
subject: Embolism / Thrombosis
subject: Education and training
subject: Embolisation
subject: Education
subject: Fluoroscopy
subject: Catheter venography
subject: Interventional vascular
subject: Genital / Reproductive system female
subject: Anatomy
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the normal female pelvic venography To analyze the appropriate diagnostic imaging approach in a patient with a suspected pelvic vein incompetence To show pelvic vein incompetence in venography findings To review the protocol used of...
Genome-Wide Association Analysis Identifies a Mutation in the Thiamine Transporter 2 (SLC19A3) Gene Associated with Alaskan Husky Encephalopathy
Creators: name: Vernau, Karen M.
name: Runstadler, Jonathan A.
name: Brown, Emily A.
name: Cameron, Jessie M.
name: Huson, Heather J.
name: Higgins, Robert J.
name: Ackerley, Cameron
name: Sturges, Beverly K.
name: Dickinson, Peter J.
name: Puschner, Birgit
name: Giulivi, Cecilia
name: Shelton, G. Diane
name: Robinson, Brian H.
name: DiMauro, Salvatore
name: Bollen, Andrew W.
name: Bannasch, Danika L.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pathology
subject: Epidemiology
subject: Neurosciences
subject: FOS: Clinical medicine

description: Alaskan Husky Encephalopathy (AHE) has been previously proposed as a mitochondrial encephalopathy based on neuropathological similarities with human Leigh Syndrome (LS). We studied 11 Alaskan Husky dogs with AHE, but found no abnormalities in respiratory chain enzyme activities in muscle and liver, or mutations in mitochondrial or nuclear genes that cause LS in people. A genome wide association study was performed using eight of the affected dogs and 20 related but unaffected control AHs using the Illumina canine HD array. SLC19A3 was identified as a positional candidate gene. This gene controls the uptake of thiamine in the CNS via expression of the thiamine transporter protein THTR2. Dogs have two copies of this gene located within the candidate interval (SLC19A3.2 – 43.36–43.38 Mb and SLC19A3.1 – 43.411–43.419 Mb) on chromosome 25. Expression analysis in a normal dog revealed that one of the paralogs, SLC19A3.1, was expressed in the brain and spinal cord while the other was not. Subsequent exon sequencing of SLC19A3.1 revealed a 4bp insertion and SNP in the second exon that is predicted to result in a functional protein truncation of 279 amino acids (c.624 insTTGC, c.625 C greater than A). All dogs with AHE were homozygous for this mutation, 15/41 healthy AH control dogs were heterozygous carriers while 26/41 normal healthy AH dogs were wild type. Furthermore, this mutation was not detected in another 187 dogs of different breeds. These results suggest that this mutation in SLC19A3.1, encoding a thiamine transporter protein, plays a critical role in the pathogenesis of AHE.
Orientations and Proximities of the Extracellular Ends of Transmembrane Helices S0 and S4 in Open and Closed BK Potassium Channels
Creators: name: Niu, Xiaowei
name: Liu, Guoxia
name: Wu, Roland
name: Chudasama, Neelesh
name: Zakharov, Sergey
name: Karlin, Arthur
name: Marx, Steven O.
Publisher: name: Columbia University
Year: 2013
Subjects: Biochemistry
Molecular biology
Biophysics
Medicine

description: The large-conductance potassium channel (BK) α subunit contains a transmembrane (TM) helix S0 preceding the canonical TM helices S1 through S6. S0 lies between S4 and the TM2 helix of the regulatory β1 subunit. Pairs of Cys were substituted in the first helical turns in the membrane of BK α S0 and S4 and in β1 TM2. One such pair, W22C in S0 and W203C in S4, was 95% crosslinked endogenously. Under voltage-clamp conditions in outside-out patches, this crosslink was reduced by DTT and reoxidized by a membrane-impermeant bis-quaternary ammonium derivative of diamide. The rate constants for this reoxidation were not significantly different in the open and closed states of the channel. Thus, these two residues are approximately equally close in the two states. In addition, 90% crosslinking of a second pair, R20C in S0 and W203C in S4, had no effect on the V50 for opening. Taken together, these findings indicate that separation between residues at the extracellular ends of S0 and S4 is not required for voltage-sensor activation. On the contrary, even though W22C and W203C were equally likely to form a disulfide in the activated and deactivated states, relative immobilization by crosslinking of these two residues favored the activated state. Furthermore, the efficiency of recrosslinking of W22C and W203C on the cell surface was greater in the presence of the β1 subunit than in its absence, consistent with β1 acting through S0 to stabilize its immobilization relative to α S4.
Hadronic Molecular States Composed of Heavy Flavor Baryons
Creators: name: Li, Ning
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the possible molecules composed of two heavy flavor baryons such as "$A_QB_Q$"(Q=b, c) within the one-pion-exchange model (OPE). Our results indicate that the long-range $π$ exchange force is strong enough to form molecules such as $[Σ_QΞ_Q^{'}]^{I=1/2}_{S=1}$(Q=b, c), $[Σ_QΛ_Q]^{I=1}_{S=1}$(Q=b, c), $[Σ_bΞ_b^{'}]^{I=3/2}_{S=1}$ and $[Ξ_bΞ^{'}_b]^{I=0}_{S=1}$ where the S-D mixing plays an important role. In contrast, the $π$ exchange does not form the spin-singlet $A_QB_Q$ bound states. If we consider the heavier scalar and vector meson exchanges as well as the pion exchange, some loosely bound spin-singlet S-wave states appear while results of the spin-triplet $A_QB_Q$ system does not change significantly, which implies the pion exchange plays an dominant role in forming the spin-triplet molecules. Moreover, we perform an extensive coupled channel analysis of the $Λ_QΛ_Q$ system within the OPE and one-boson-exchange (OBE) framework and find that there exist loosely bound states of $Λ_QΛ_Q$(Q=b,c) with quantum numbers $I(J^P)=0(0^+)$, $0(0^-)$ and $0(1^-)$. The binding solutions of $Λ_QΛ_Q$ system mainly come from the coupled-channel effect in the flavor space. Besides the OPE force, the medium- and short-range attractive force also plays a significant role in the formation of the loosely bound $Λ_cΛ_c$ and $Λ_bΛ_b$ states. Once produced, they will be very stable because such a system decays via weak interaction with a very long lifetime around $10^{-13}\sim10^{-12}$s.
description: Published in PRD
Coherent manipulation of nuclear spins in the strong driving regime
Creators: name: Yudilevich, Dan
name: Salhov, Alon
name: Schaefer, Ido
name: Herb, Konstantin
name: Retzker, Alex
name: Finkler, Amit
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Spin-based quantum information processing makes extensive use of spin-state manipulation. This ranges from dynamical decoupling of nuclear spins in quantum sensing experiments to applying logical gates on qubits in a quantum processor. Here we present an antenna for strong driving in quantum sensing experiments and theoretically address challenges of the strong driving regime. First, we designed and implemented a micron-scale planar spiral RF antenna capable of delivering intense fields to a sample. The planar antenna is tailored for quantum sensing experiments using the diamond's nitrogen-vacancy (NV) center and should be applicable to other solid-state defects. The antenna has a broad bandwidth of 22 MHz, is compatible with scanning probes, and is suitable for cryogenic and ultrahigh vacuum conditions. We measure the magnetic field induced by the antenna and estimate a field-to-current ratio of $113\pm 16$ G/A, representing a x6 increase in efficiency compared to the state-of-the-art. We demonstrate the antenna by driving Rabi oscillations in $^1$H spins of an organic sample on the diamond surface and measure $^1$H Rabi frequencies of over 500 kHz, i.e., $\mathrmπ$-pulses shorter than 1 $μs$ - faster than previously reported in NV-based nuclear magnetic resonance (NMR). Finally, we discuss the implications of driving spins with a field tilted from the transverse plane in a regime where the driving amplitude is comparable to the spin-state splitting, such that the rotating wave approximation does not describe the dynamics well. We present a recipe to optimize pulse fidelity in this regime based on a phase and offset-shifted sine drive, that may be optimized without numerical optimization procedures or precise modeling of the experiment. We consider this approach in a range of driving amplitudes and show that it is particularly efficient in the case of a tilted driving field.
Transient Water Age Distributions in Environmental Flow Systems: The Time-Marching Laplace Transform Solution Technique
Creators: name: Cornaton, F. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: A.0

description: Environmental fluid circulations are very often characterized by analyzing the fate and behavior of natural and anthropogenic tracers. Among these tracers, age is taken as an ideal tracer which can yield interesting diagnoses, as for example the characterization of the mixing and renewal of water masses, of the fate and mixing of contaminants, or the calibration of hydro-dispersive parameters used by numerical models. Such diagnoses are of great interest in atmospheric and ocean circulation sciences, as well in surface and subsurface hydrology. The temporal evolution of groundwater age and its frequency distributions can display important changes as flow regimes vary due to natural change in climate and hydrologic conditions and/or human induced pressures on the resource to satisfy the water demand. Steady-state age frequency distributions can be modelled using standard numerical techniques, since the general balance equation describing age transport under steady-state flow conditions is exactly equivalent to a standard advection-dispersion equation. The time-dependent problem is however described by an extended transport operator that incorporates an additional coordinate for water age. The consequence is that numerical solutions can hardly be achieved, especially for real 3-D applications over large time periods of interest. A novel algorithm for solving the age distribution problem under time-varying flow regimes is presented and, for some specific configurations, extended to the problem of generalized component exposure time. The algorithm combines the Laplace Transform technique applied to the age (or exposure time) coordinate with standard time-marching schemes. The method is validated and illustrated using analytical and numerical solutions considering 1-D, 2-D and 3-D theoretical groundwater flow domains.
description: 18 pages, 9 figures; Water Resources Research 2011
Exact Gap Computation for Code Coverage Metrics in ISO-C
Creators: name: Richter, Dirk
name: Berg, Christian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Test generation and test data selection are difficult tasks for model based testing. Tests for a program can be meld to a test suite. A lot of research is done to quantify the quality and improve a test suite. Code coverage metrics estimate the quality of a test suite. This quality is fine, if the code coverage value is high or 100%. Unfortunately it might be impossible to achieve 100% code coverage because of dead code for example. There is a gap between the feasible and theoretical maximal possible code coverage value. Our review of the research indicates, none of current research is concerned with exact gap computation. This paper presents a framework to compute such gaps exactly in an ISO-C compatible semantic and similar languages. We describe an efficient approximation of the gap in all the other cases. Thus, a tester can decide if more tests might be able or necessary to achieve better coverage.
description: In Proceedings MBT 2012, arXiv:1202.5826
National Welfare in an Open Economy in the Presence of Foreign-owned Factors of Production
Creators: name: Bhagwati, Jagdish N.
name: Brecher, Richard A.
Publisher: name: Columbia University
Year: 1980
Subjects: Economics

description: In the presence of foreign-owned factors of production in the economy, the effect of trade policy changes on national welfare needs to take into account the possible redistributive effect between foreign-owned and domestic factors. Therefore, an otherwise welfare-improving trade liberalization may paradoxically worsen national welfare. This paper analyzes this important, new area of trade theory and establishes the condition under which this paradox of immiserizing trade liberalization arises. The analysis is also applicable to analyzing the effects of external tariff variation in customs unions, with full internal factor mobility, on member countries' welfare.
A study of the universal threshold in the L1 recovery by statistical mechanics
Creators: name: Takeda, Koujin
name: Kabashima, Yoshiyuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We discuss the universality of the L1 recovery threshold in compressed sensing. Previous studies in the fields of statistical mechanics and random matrix integration have shown that L1 recovery under a random matrix with orthogonal symmetry has a universal threshold. This indicates that the threshold of L1 recovery under a non-orthogonal random matrix differs from the universal one. Taking this into account, we use a simple random matrix without orthogonal symmetry, where the random entries are not independent, and show analytically that the threshold of L1 recovery for such a matrix does not coincide with the universal one. The results of an extensive numerical experiment are in good agreement with the analytical results, which validates our methodology. Though our analysis is based on replica heuristics in statistical mechanics and is not rigorous, the findings nevertheless support the fact that the universality of the threshold is strongly related to the symmetry of the random matrix.
description: 6 pages, 3 figures, invited paper in 46th Annual Conference on Information Sciences and Systems 2012 (CISS 2012) at Princeton University, March 2012
An interpretative phenomenological exploration of succesful students with learning disabilities enrolled in post-secondary education
Creators: name: O'Rourke, Sally E.
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 149-161
description: Includes copies of ethics and research approval. Original copies with original Partial Copyright Licence.
description: A growing population of students with learning disabilities is evident on higher education campuses today (Henderson, 2001). The rates of attendance at post-secondary institutions have increased in recent years (e.g. Hartman-Hall & Haaga, 2002), and so has the necessity of recognizing and supporting the learning needs of this unique population. In addition, there is limited qualitative research examining the lived experience of being a successful university student with a learning disability in Canada. The purpose of this phenomenological study was to obtain descriptions of the meaning for several individuals of their experience of being a successful student with a learning disability and attending a post-secondary institution. Phenomenology is well­suited to explore the issues and meanings attributed to the experiences of individuals with disabilities in that it endeavors to understand their personal life story (van Manen, 1990). The primary research question in this study was: How do successful students diagnosed with a learning disability describe their experience as a student enrolled in a post-secondary institution? Of primary interest in this investigation are the understandings and experiences of post-secondary students who have learning disabilities and self-identify as being 'successful' in an academic context. University students who have the personal, first-hand experience of a learning disability, self-identify as a successful student, were attending a post-secondary institution, and were registered at a university Disability Resource Center were invited to participate in this study. Data was gathered primarily in one to two semi-structured, open-ended interviews, and transcribed verbatim, examined for significant phrases, and clustered into themes on the basis of commonality of topics. Data was analyzed in detail using interpretative phenomenological analysis as described by Smith & Osborne (2003), Smith (1996; 2004), and Smith, Flowers & Larkin (2009). The results of the study indicated how students with disabilities in university settings perceive success, how they overcame adversity, and how they set themselves up for success in a post-secondary environment. Implications of the findings and recommendations for further research are presented.
title: There's something in my throat! Dysphagia. Common and uncommon causes.
Creators: name: SOLIS CANO, DANIA
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Eating disorders
subject: Diagnostic procedure
subject: Contrast agent-oral
subject: Barium meal
subject: Fluoroscopy
subject: Digital radiography
subject: Head and neck
subject: Gastrointestinal tract
subject: Anatomy
subject: GI Tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the literature of dysphagia and know the top differential diagnoses. To recognize disorders of esophageal motility. To describe the imaging findings of disease entities that may produce dysphagia. Videofluoroscopic pharyngoesophageal and...
Absolute measurement of dielectronic recombination for C3+ in a known external field
Creators: name: Gardner, L. D.
name: Reisenfeld, D. B.
name: Young, A. R.
name: Kohl, J. L.
name: Savin, Daniel Wolf
Publisher: name: Columbia University
Year: 1996
Subjects: Astrophysics
Plasma (Ionized gases)
Physics
Microphysics

description: An absolute measurement of the rate coefficient for dielectronic recombination (DR) of C3+, via the 2s-2p core excitation, in an external electric field of 11.4±0.9(1σ) V cm-1 is presented. An inclined-beam arrangement is used and the stabilizing photons at ∼155 nm are detected in delayed coincidence with the recombined ions. The full width at half maximum of the electron energy spread in the ion rest frame is 1.74±0.22(1σ) eV. The measured DR rate, at a mean electron energy of 8.26±0.07(1σ) eV, is (2.76±0.75)×10-10 cm3 s-1. The uncertainty quoted for the DR rate is the total uncertainty, systematic and statistical, at the 1σ level. In comparing the present results to theory, a semiempirical formula is used to determine which recombined ion states are ionized by the 4.65 kV cm-1 fields in the final-charge-state analyzer and not detected. For the present results, any DR of the incident electrons into n levels greater than 44 is assumed to be field ionized in the final-charge-state analyzer. A more precise treatment of field ionization, which includes the lifetime of the C2+ ions before they are ionized and the time evolution and rotation of the fields experienced by the recombined ions, is needed before a definitive comparison between experiment and theory can be made. Our DR measurement, within the limits of that approach, agrees reasonably well with an intermediate coupling calculation that uses an isolated resonance, single-configuration approximation, but does not agree with pure LS-coupling calculations.
Stellar spectral-type (mass) dependence of the dearth of close-in planets around fast-rotating stars. Architecture of Kepler confirmed single-exoplanet systems compared to star-planet evolution models
Creators: name: García, R. A.
name: Gourvès, C.
name: Santos, A. R. G.
name: Strugarek, A.
name: Godoy-Rivera, D.
name: Mathur, S.
name: Delsanti, V.
name: Breton, S. N.
name: Beck, P. G.
name: Brun, A. S.
name: Mathis, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In 2013 a dearth of close-in planets around fast-rotating host stars was found using statistical tests on Kepler data. The addition of more Kepler and Transiting Exoplanet Survey Satellite (TESS) systems in 2022 filled this region of the diagram of stellar rotation period (Prot) versus the planet orbital period (Porb). We revisited the Prot extraction of Kepler planet-host stars, we classify the stars by their spectral type, and we studied their Prot-Porb relations. We only used confirmed exoplanet systems to minimize biases. In order to learn about the physical processes at work, we used the star-planet evolution code ESPEM (French acronym for Evolution of Planetary Systems and Magnetism) to compute a realistic population synthesis of exoplanet systems and compared them with observations. Because ESPEM works with a single planet orbiting around a single main-sequence star, we limit our study to this population of Kepler observed systems filtering out binaries, evolved stars, and multi-planets. We find in both, observations and simulations, the existence of a dearth in close-in planets orbiting around fast-rotating stars, with a dependence on the stellar spectral type (F, G, and K), which is a proxy of the mass in our sample of stars. There is a change in the edge of the dearth as a function of the spectral type (and mass). It moves towards shorter Prot as temperature (and mass) increases, making the dearth look smaller. Realistic formation hypotheses included in the model and the proper treatment of tidal and magnetic migration are enough to qualitatively explain the dearth of hot planets around fast-rotating stars and the uncovered trend with spectral type.
description: Accepted in A&A. 13 pages, 8 figures
Mathematical predominance of Dirichlet condition for the one-dimensional Coulomb potential
Creators: name: de Oliveira, Cesar R.
name: Verri, Alessandra A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We restrict a quantum particle under a coulombian potential (i.e., the Schrödinger operator with inverse of the distance potential) to three dimensional tubes along the x-axis and diameter $\varepsilon$, and study the confining limit $\varepsilon\to0$. In the repulsive case we prove a strong resolvent convergence to a one-dimensional limit operator, which presents Dirichlet boundary condition at the origin. Due to the possibility of the falling of the particle in the center of force, in the attractive case we need to regularize the potential and also prove a norm resolvent convergence to the Dirichlet operator at the origin. Thus, it is argued that, among the infinitely many self-adjoint realizations of the corresponding problem in one dimension, the Dirichlet boundary condition at the origin is the reasonable one-dimensional limit.
description: 30 pages; no figures
title: MDCT angiography of the postoperative aorta
Creators: name: Finazzo, Mario
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Diagnostic or prognostic study
subject: Not applicable
subject: Grafts
subject: Dissection
subject: Aneurysms
subject: Technical aspects
subject: Surgery
subject: Diagnostic procedure
subject: CT-Angiography
subject: CT
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 main aortic repair techniques. To define the normal postoperative appearance of thoracic and abdominal aorta. To help avoid imaging pitfalls. To review the most common...