cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Is noncontrast CT enough for the evaluation of hepatic metastasis who cannot receive iodinated contrast media ?
Creators: name: Jee, Han Bum
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Metastases
subject: Contrast agent-intravenous
subject: CT
subject: Liver
subject: Contrast agents
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the appropriateness of follow-up with only non-enhanced CT (NECT) in patients with gastrointestinal...
Optimizing the adaptive fast multipole method for fractal sets
Creators: name: Pouransari, Hadi
name: Darve, Eric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 28A80, 65F99, 70F10

description: We have performed a detailed analysis of the fast multipole method (FMM) in the adaptive case, in which the depth of the FMM tree is non-uniform. Previous works in this area have focused mostly on special types of adaptive distributions, for example when points accumulate on a 2D manifold or accumulate around a few points in space. Instead, we considered a more general situation in which fractal sets, e.g., Cantor sets and generalizations, are used to create adaptive sets of points. Such sets are characterized by their dimension, a number between 0 and 3. We introduced a mathematical framework to define a converging sequence of octrees, and based on that, demonstrated how to increase $N \to \infty$. A new complexity analysis for the adaptive FMM is introduced. It is shown that the ${\cal{O}}(N)$ complexity is achievable for any distribution of particles, when a modified adaptive FMM is exploited. We analyzed how the FMM performs for fractal point distributions, and how optimal parameters can be picked, e.g., the criterion used to stop the subdivision of an FMM cell. A new subdividing double-threshold method is introduced, and better performance demonstrated. Parameters in the FMM are modeled as a function of particle distribution dimension, and the optimal values are obtained. A three dimensional kernel independent black box adaptive FMM is implemented and used for all calculations.
Dynamic Service Innovation Strategy and Firm Profitability: Empirical Evidence from Hotel Businesses in Thailand
Creators: name: Sasichai Pimpan
Publisher: name: Stamford International University
Year: 2018
Subjects: Dynamic Service Innovation Strategy, Service Excellence, Service Advantage, Customer Fulfillment, Service Performance, Firm Profitability

description: ASEAN Journal of Management & Innovation, 5, 1, p 76-87
Young women’s perceptions of transactional sex and sexual agency: a qualitative study in the context of rural South Africa
Creators: name: Pettifor, Audrey
Publisher: name: BioMed Central
Year: 2017

description: Abstract Background Evidence shows that HIV prevalence among young women in sub-Saharan Africa increases almost five-fold between ages 15 and 24, with almost a quarter of young women infected by their early-to mid-20s. Transactional sex or material exchange for sex is a relationship dynamic that has been shown to have an association with HIV infection. Methods Using five focus group discussions and 19 in-depth interviews with young women enrolled in the HPTN 068 conditional cash transfer trial (2011–2015), this qualitative study explores young women’s perceptions of transactional sex within the structural and cultural context of rural South Africa. The analysis also considers the degree to which young women perceive themselves as active agents in such relationships and whether they recognise a link between transactional sex and HIV risk. Results Young women believe that securing their own financial resources will ultimately improve their bargaining position in their sexual relationships, and open doors to a more financially independent future. Findings suggest there is a nuanced relationship between sex, love and gifts: money has symbolic meaning, and money transfers, when framed as gifts, indicates a young woman’s value and commitment from the man. This illustrates the complexity of transactional sex; the way it is positioned in the HIV literature ignores that “exchanges” serve as fulcrums around which romantic relationships are organised. Finally, young women express agency in their choice of partner, but their agency weakens once they are in a relationship characterised by exchange, which may undermine their ability to translate perceived agency into STI and HIV risk reduction efforts. Conclusions This research underscores the need to recognise that transactional sex is embedded in adolescent romantic relationships, but that certain aspects make young women particularly vulnerable to HIV. This is especially true in situations of restricted choice and circumscribed employment opportunities. HIV prevention educational programmes could be coupled with income generation trainings, in order to leverage youth resilience and protective skills within the confines of difficult economic and social circumstances. This would provide young women with the knowledge and means to more successfully navigate safer sexual relationships.
Two-Dimensional Van der Waals Epitaxy Kinetics in a Three-Dimensional Perovskite Halide
Creators: name: Wang, Yiping
name: Shi, Yunfeng
name: Xin, Guoqing
name: Lian, Jie
name: Shi, Jian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The exploration of emerging materials physics and prospective applications of two-dimensional materials greatly relies on the growth control of their thickness, phases, morphologies and film-substrate interactions. Though substantial progresses have been made for the development of two-dimensional films from conventional layered bulky materials, particular challenges remain on obtaining ultrathin, single crystalline, dislocation-free films from intrinsically non-Van der Waals-type three-dimensional materials. In this report, with the successful demonstration of single crystalline ultrathin large scale perovskite halide material, we reveal and identify the favorable role of weak Van der Waals film-substrate interaction on the nucleation and growth of the two-dimensional morphology out of non-layered materials compared to conventional epitaxy. We also show how the bonding nature of the three-dimensional material itself affects the kinetic energy landscape of ultrathin films growth. By studying the formation of fractal perovskites assisted with Monte Carlo simulations, we demonstrate that the competition between the Van der Waals diffusion and surface free energy of the perovskite leads to film thickening, suggesting extra strategies such as surface passivation may be needed for the growth of monolayer and a few layers films.
description: Crystal Growth & Design 2015
Un acercamiento a la situación sociolingüística actual de la nacionalidad Andoa
Creators: name: Jansen, Silke; Rosado, Erika; Gerique, Andrés
Publisher: name: Zenodo
Year: 2023
Subjects: andoa, ecuador, sociolingüística, katsakati, kichwa

description: El territorio de la nacionalidad Andoa, en la provincia de Pastaza, alberga una rica diversidad biológica y cultural, donde coexisten varias lenguas indígenas con el español. Por ello, nuestra ponencia tiene como objetivo presentar algunos resultados preliminares de una investigación cuantitativa destinada a comprender mejor la complejidad de la situación sociolingüística actual en el territorio de la nacionalidad. Los resultados ofrecen una idea aproximada del origen de los habitantes del territorio y de su influencia en la distribución lingüística de la zona. Asimismo, los datos arrojan información reveladora sobre el desplazamiento del kichwa a favor del español y el grado de presencia y dominio del idioma katsakati, lengua propia de la nacionalidad que, a pesar de estar prácticamente extinta, está siendo reincorporada gracias a la voluntad política de los dirigentes, los esfuerzos de especialistas externos y el interés de las comunidades. Sin duda, las actitudes lingüísticas de los hablantes no sólo son un factor clave en la revitalización efectiva de una lengua, sino que también reflejan la forma en que las relaciones de poder y la desigualdad se manifiestan en la dimensión lingüística. En este sentido, a partir de los datos también nos planteamos explorar las actitudes de los andoa hacia el katsakati, el kichwa y el español, así como sus expectativas y aspiraciones para sus lenguas en un futuro a medio plazo.
title: Automated two-point dixon screening for the evaluation of hepatic steatosis and siderosis: comparison with conventional R2*-relaxometry and chemical shift-based sequences
Creators: name: Henninger, Benjamin
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Abdomen
subject: Liver
subject: MR physics
subject: MR
subject: Diagnostic procedure
subject: Imaging sequences
subject: Metabolic disorders

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the automated two-point Dixon dual-ratio signal discrimination method (screening sequence), which basically was designed as a qualitative screening method, for the detection and estimated quantification of hepatic iron and fat compared...
title: Breast cancer screening results classified by breast density
Creators: name: Ochi, Miho
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Breast
subject: Mammography
subject: Ultrasound
subject: Screening
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lesions in high-density mammary glands are hard to distinguish on mammography (MMG), and high-density mammary gland is said to represent a high risk factor for breast cancer [1–6]. For that reason, the Preventive Medicine Center of our...
A semidefinite programming upper bound of quantum capacity
Creators: name: Wang, Xin
name: Duan, Runyao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently the power of positive partial transpose preserving (PPTp) and no-signalling (NS) codes in quantum communication has been studied. We continue with this line of research and show that the NS/PPTp/NS$\cap$PPTp codes assisted zero-error quantum capacity depends only on the non-commutative bipartite graph of the channel and the one-shot case can be computed efficiently by semidefinite programming (SDP). As an example, the activated PPTp codes assisted zero-error quantum capacity is carefully studied. We then present a general SDP upper bound $Q_Γ$ of quantum capacity and show it is always smaller than or equal to the "Partial transposition bound" introduced by Holevo and Werner, and the inequality could be strict. This upper bound is found to be additive, and thus is an upper bound of the potential PPTp assisted quantum capacity as well. We further demonstrate that $Q_Γ$ is strictly better than several previously known upper bounds for an explicit class of quantum channels. Finally, we show that $Q_Γ$ can be used to bound the super-activation of quantum capacity.
description: 5 pages, 1 figure, v2 has improved presentation, many typos corrected
title: Comparison of three different slow injection rates of Gd-EOB-DTPA using MR fluoroscopic triggering technique for arterial phase MR imaging of the liver
Creators: name: Zhao, Jun
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Quality assurance
subject: Efficacy studies
subject: MR
subject: Liver
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To compare three different slow injection rates using MR fluoroscopic triggering technique (CARE Bolus) for optimizing hepatic arterial phase of Gadoxetic acid (Gd-EOB-DTPA) enhanced MR...
Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo
Creators: name: Trexler, Eric
name: Mock, Meredith G
name: Trexler, Eric
name: Mock, Meredith G
name: Blue, Malia M N
name: Smith-Ryan, Abbie
name: Hirsch, Katie
name: Smith-Ryan, Abbie
name: Trexler, Eric
name: Hirsch, Katie
Publisher: name: BioMed Central
Year: 2016

description: Meeting Abstracts: Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo Clearwater Beach, FL, USA. 9-11 June 2016
String condensation: Nemesis of Black Holes?
Creators: name: Hewitt, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper puts forward a conjecture that there are no black holes in M theory. We will show that a mechanism to prevent black hole formation is needed in 4 dimensions to make string theory a viable high energy model of quantum gravity. Black hole formation may be averted by a gravity regulation mechanism based on string condensation. In this scenario, black holes are replaced by `hot holograms' that form during gravitational collapse. The geometric conditions based on the properties of free thermalon solutions that are proposed for conversion to a high temperature hologram to occur, however, are local and generic in dimension and could apply throughout M space. This idea can be applied to resolve the problems presented by the process of black hole evaporation, which appears to be inconsistent with quantum information theory. Whereas, in the conventional view, black holes are real and firewalls are probably a chimera, in the scenario proposed here that situation would be reversed.
description: 11 pages; Contribution to the International Conference 'Planck 2015: From the Planck Scale to the Electroweak Scale 25-29 May 2015, Ioannina, Greece
title: Comparative study in assesing renal function with MR-urography from diuretic renogram.
Creators: name: Vera Cartas, Marta
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Pathology
subject: Image verification
subject: Congenital
subject: Pyelography
subject: Diagnostic procedure
subject: Comparative studies
subject: Nuclear medicine conventional
subject: MR-Functional imaging
subject: MR
subject: Urinary Tract / Bladder
subject: Anatomy
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Renal function has been traditionally evaluated with nuclear medicine tecniques such as the diuretic renogram, in order to give information about glomerularfiltration, differential renal function or urinary tract anomalies. The aim of our study is...
Fishing out the signal in polypharmacological high-throughput screening data using novel navigator cheminformatics software
Creators: name: Tropsha, Alexander
name: Fourches, Denis
Publisher: name: Chemistry Central Ltd
Year: 2014

description: Many drugs are characterized by polypharmacological
mechanisms of action. Thus, prospective drug discovery
studies often start by testing large compound libraries in
multiple and diverse High-Throughput Screening (HTS)
assays. These large heterogeneous data collections pose
numerous computational challenges concerning processing,
curation, and analysis of untreated output files
generated by plate readers. We have developed the
freely-accessible HTS Navigator software to enable and
facilitate the processing and analysis of polypharmacological
HTS data. We report on the capabilities of Navigator
and present several case studies where we employed
cheminformatics approaches embedded within the Navigator
to curate and analyze large datasets of compounds
tested toward different panels of targets.
title: The value of Dixon Imaging for Evaluating Articular Cartilage Defects inthe Knee Joint on Open MRI
Creators: name: Mansour, Omid
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Trauma
subject: Technical aspects
subject: MR
subject: Musculoskeletal joint

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The purpose of our study was todetermine if tree-point Dixon sequence is useful for detecting abnormalities of the articular cartilage in the knee joint...
The All Sky Young Association (ASYA): a new young association
Creators: name: Torres, C. A. O.
name: Quast, G. R.
name: Montes, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To analyze the SACY (Search for Associations Containing Young stars) survey we developed a method to find young associations and to define their high probability members. These bona fide members enable to obtain the kinematical and the physical properties of each association in a proper way. Recently we noted a concentration in the UV plane and we found a new association we are calling ASYA (All Sky Young Association) for its overall distribution in the sky with a total of 38 bonafide members and an estimated age of 110 Myr, the oldest young association found in the SACY survey. We present here its kinematical, space and Li distributions and its HR diagram.
description: To appear in "Young Stars and Planets Near the Sun", Proceedings of IAU Symposium No. 314 (Cambridge University Press), J.H. Kastner, B. Stelzer, S.A. Metchev, eds
An equity analysis of utilization of health services in Afghanistan using a national household survey
Creators: name: Salehi, Ahmad S
name: Kim, Christine
name: Saeed, Khwaja M A
name: Zeng, Wu
Publisher: name: BioMed Central
Year: 2016

description: Abstract Background Afghanistan has made great strides in the coverage of health services across the country but coverage of key indicators remains low nationally and whether the poorest households are accessing these services is not well understood. Methods We analyzed the Afghanistan Mortality Survey 2010 on utilization of inpatient and outpatient care, institutional delivery and antenatal care by wealth quintiles. Concentration indexes (CIs) were generated to measure the inequality of using the four services. Additional analyses were conducted to examine factors that explain the health inequalities (e.g. age, gender, education and residence). Results Among households reporting utilization of health services, public health facilities were used more often for inpatient care, while they were used less for outpatient care. Overall, the utilization of inpatient and outpatient care, and antenatal care was equally distributed among income groups, with CIs of 0.04, 0.03 and 0.08, respectively. However, the poor used more public facilities while the wealthy used more private facilities. There was a substantial inequality in the use of institutional delivery services, with a CI of 0.31. Poorer women had a lower rate of institutional deliveries overall, in both public and private facilities, compared to the wealthy. Location was an important factor in explaining the inequality in the use of health services. Conclusions The large gap between the rich and poor in access to and utilization of key maternal services, such as institutional delivery, may be a central factor to the high rates of maternal mortality and morbidity and impedes efforts to make progress toward universal health coverage. While poorer households use public health services more often, the use of public facilities for outpatient visits remains half that of private facilities. Pro-poor targeting as well as a better understanding of the private sector’s role in increasing equitable coverage of maternal health services is needed. Equity-oriented approaches in health should be prioritized to promote more inclusive health system reforms.
title: Pulmonary nodules: Quantitative and qualitative assessment with DW MR imaging. Is the evaluation with ADC useful?
Creators: name: Nakayama, Jun
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: MR-Diffusion/Perfusion
subject: Lung

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lung cancer is the leading cause of cancer death in both men and women worldwide (1). Mortality rates and the success of therapeutic approaches depend on the histologic type of cancer, the involvement of mediastinal and hilar lymph nodes, and the...
title: Acute traumatic central cord syndrome (ATCCS)---Analysis of MR imaging findings
Creators: name: Chan, Ho Fung
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Musculoskeletal spine
subject: Neuroradiology spine
subject: MR
subject: Statistics
subject: Trauma
subject: Epidemiology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Acute traumatic central cord syndrome (ATCCS) was first described in 1954 by Schneider et al. It is an incomplete spinal cord injury characterized by disproportionate weakness of the upper extremitiescompared with lower extremities, variable sensory...
title: The Role of USPIO in Evaluating the Dignity of a Lesion
Creators: name: Seyfer, Perla
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Tissue characterisation
subject: Inflammation
subject: Cancer
subject: Molecular imaging
subject: Experimental investigations
subject: Diagnostic procedure
subject: MR-Diffusion/Perfusion
subject: MR
subject: Experimental
subject: Oncology
subject: Molecular imaging
subject: Contrast agents

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Early distinction of malignant and benign lesions is essential regarding the decision of the appropriate therapy. The value of Ultrasmall superparamagnetic iron oxide particles (USPIO)-enhanced MRI as a diagnostic tool for differentiating abscesses...
N-Pact Factor Replication in Clinical/Psychopathology Journals
Creators: name: Tackett, Jennifer
name: Reardon, Kathleen
Publisher: name: Open Science Framework
Year: 2022

description: Coding the sample sizes found in the Journal of Abnormal Psychology (JAP) and the Journal of Consulting and Clinical Psychology (JCCP) according to the methods found in Fraley and Vazire (2014)
The mouse DXZ4 homolog retains Ctcf binding and proximity to Pls3 despite substantial organizational differences compared to the primate macrosatellite
Creators: name: Magnuson, Terry
name: Calabrese, Mauro
Publisher: name: BioMed Central Ltd
Year: 2012

description: Abstract Background The X-linked macrosatellite DXZ4 is a large homogenous tandem repeat that in females adopts an alternative chromatin organization on the primate X chromosome in response to X-chromosome inactivation. It is packaged into heterochromatin on the active X chromosome but into euchromatin and bound by the epigenetic organizer protein CTCF on the inactive X chromosome. Because its DNA sequence diverges rapidly beyond the New World monkeys, the existence of DXZ4 outside the primate lineage is unknown. Results Here we extend our comparative genome analysis and report the identification and characterization of the mouse homolog of the macrosatellite. Furthermore, we provide evidence of DXZ4 in a conserved location downstream of the PLS3 gene in a diverse group of mammals, and reveal that DNA sequence conservation is restricted to the CTCF binding motif, supporting a central role for this protein at this locus. However, many features that characterize primate DXZ4 differ in mouse, including the overall size of the array, the mode of transcription, the chromatin organization and conservation between adjacent repeat units of DNA sequence and length. Ctcf binds Dxz4 but is not exclusive to the inactive X chromosome, as evidenced by association in some males and equal binding to both X chromosomes in trophoblast stem cells. Conclusions Characterization of Dxz4 reveals substantial differences in the organization of DNA sequence, chromatin packaging, and the mode of transcription, so the potential roles performed by this sequence in mouse have probably diverged from those on the primate X chromosome.
Guarding border: bodies and dichotomy in gendered control over mobility in a borderland of Bangladesh
Creators: name: Chowdhury, Suban Kumar
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Neuroscience
Mental Health

description: Prior research has concentrated on border guards and the politics of bodies, but less attention has been made to the interaction between embodied differentials and women’s varied household income classes and its consequent effect, such as a dichotomy in gendered control over women’s mobility. This study established such a perspective by following the continuation of the application of the body as an analytical scale in scholarships of feminist political geography and taking the heterogeneous women’s voices into account. The analysis shed light on the gendered forms of domination implied by the entangled protection and control paradigms in framing the practices of patrolling the border. Thus, in this article, the author unpacked how incorporating the entwined paradigms of protection and control into the framing of border guarding manifests differential gendered implications, ranging from fear of making mobility-related decisions to immobilisation patterns. It connects these practices to gendered processes of othering, highlighting the interaction between embodied differentials and the various economic positions of women and thus finds a dichotomy in gendered control over mobility in the name of border protection under the guise of border patrolling practices.
title: Performance of computed tomography automatic exposure control (CT-AEC) in a 128-slice dual -source CT (DSCT) scanner
Creators: name: Niwa, Shinji
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Radioprotection / Radiation dose
subject: CT
subject: Physics
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The radiation doses received during computed tomography (CT) are relatively higher than those received from other modalities [1], and therefore it is important to manage the doses that are administered to the patient. Publication 87 from the...
An Intermediate Type Ia Supernova Between Normal And Super-Chandrasekhar
Creators: name: Cao, Yi
name: Johansson, J.
name: Nugent, Peter E.
name: Goobar, A.
name: Nordin, Jakob
name: Kulkarni, S. R.
name: Cenko, S. Bradley
name: Fox, Ori
name: Kasliwal, Mansi M.
name: Fremling, C.
name: Amanullah, R.
name: Hsiao, E. Y.
name: Perley, D. A.
name: Bue, Brian D.
name: Masci, Frank J.
name: Lee, William H.
name: Chotard, Nicolas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we report observations of a peculiar Type Ia supernova iPTF13asv (a.k.a., SN2013cv) from the onset of the explosion to months after its peak. The early-phase spectra of iPTF13asv show absence of iron absorption, indicating that synthesized iron elements are confined to low-velocity regions of the ejecta, which, in turn, implies a stratified ejecta structure along the line of sight. Our analysis of iPTF13asv's light curves and spectra shows that it is an intermediate case between normal and super-Chandrasekhar events. On the one hand, its light curve shape (B-band $Δm_{15}=1.03\pm0.01$) and overall spectral features resemble those of normal Type Ia supernovae. On the other hand, similar to super-Chandrasekhar events, it shows large peak optical and UV luminosity ($M_B=-19.84\,\rm{mag}$, $M_{uvm2}=-15.5\,\rm{mag}$) a relatively low but almost constant \ion{Si}{2} velocities of about $10,000\,\rm{km}\,\rm{s}^{-1}$, and persistent carbon absorption in the spectra. We estimate a $^{56}$Ni mass of $0.81^{+0.10}_{-0.18}M_\odot$ and a total ejecta mass of $1.59^{+0.45}_{-0.12}M_\odot$. The large ejecta mass of iPTF13asv and its stratified ejecta structure together seemingly favor a double-degenerate origin.
description: 13 pages, 16 figures, ApJ in press
THE INFLUENCE OF SURFACTANTS ON THE SORPTION OF PHENANTHRENE IN NATURAL WATERS
Creators: name: JONES-HUGHES, TRACEY LOUISE
Publisher: name: University of Plymouth
Year: 2002

description: Polycyclic aromatic hydrocarbons (PAHs) are widely recognised as harmful, persistent organic pollutants, whilst surfactants are more easily degraded but their ubiquitous use both domestically and industrially ensures their presence in natural waters. Owing to both their hydrophobic and hydrophilic properties, surfactants are capable of both adsolubilisation and solubilisation of co-contaminants, hence, their presence in natural waters is considered extremely significant. The purpose of this research was to determine how surfactants and PAHs influence each other in estuaries where both are co-disposed. This study is the first to employ environmentally realistic concentrations of surfactants and to use natural particles in order to determine how changes in surfactant behaviour impinge on the sorption of a representative PAH to sediment. The experimental method employed involved tracing the solubility and sorption of a '''C-labelled PAH (phenanthrene) in the presence of representative surfactants from the three main groups, i.e., anionic, nonionic and cationic. Initially the four compounds were examined in isolation at two temperatures (8°C and 20°C), salinities and particle concentrations. The next stage involved incorporating each surfactant with phenanthrene in the same experiment and repeating the range of variables. Solubility and adsorption of phenanthrene in the presence of Triton X-100, sodium dodecyl sulphate (SDS) or hexadecyltrimethylammonium iodide (HDTMA) proved to be highly complex. The adsorption, expressed as a Freundlich coefficient, KF was generally nonlinear and varied according to surfactant type, salinity, temperature, and contact sequence. The overriding influence, however, was sediment particulate matter (SPM) concentration. On some occasions the surfactants in isolation displayed unusual particle concentration effects (PCE), such as an increase of surfactant in the aqueous phase as the SPM concentration increased. Despite this, they all generally exaggerate the more typical PCE displayed by phenanthrene, where the particle-water partition coefficient is reduced as particle concentration increases. This effect is then modified by temperature and contact sequence, which has important environmental implications with regard to removal or release of compounds stored within sediments. However, overall, at environmentally relevant concentrations, the surfactants appear to enhance sorption, rather than solubility, with HDTMA the most effective surfactant at removing phenanthrene from the aqueous phase.
A neuromechanics-based powered ankle exoskeleton to assist walking post-stroke: a feasibility study
Creators: name: Takahashi, Kota Z.
name: Sawicki, Gregory
name: Lewek, Michael
Publisher: name: BioMed Central
Year: 2015

description: Abstract Background In persons post-stroke, diminished ankle joint function can contribute to inadequate gait propulsion. To target paretic ankle impairments, we developed a neuromechanics-based powered ankle exoskeleton. Specifically, this exoskeleton supplies plantarflexion assistance that is proportional to the user’s paretic soleus electromyography (EMG) amplitude only during a phase of gait when the stance limb is subjected to an anteriorly directed ground reaction force (GRF). The purpose of this feasibility study was to examine the short-term effects of the powered ankle exoskeleton on the mechanics and energetics of gait. Methods Five subjects with stroke walked with a powered ankle exoskeleton on the paretic limb for three 5 minute sessions. We analyzed the peak paretic ankle plantarflexion moment, paretic ankle positive work, symmetry of GRF propulsion impulse, and net metabolic power. Results The exoskeleton increased the paretic plantarflexion moment by 16% during the powered walking trials relative to unassisted walking condition (p < .05). Despite this enhanced paretic ankle moment, there was no significant increase in paretic ankle positive work, or changes in any other mechanical variables with the powered assistance. The exoskeleton assistance appeared to reduce the net metabolic power gradually with each 5 minute repetition, though no statistical significance was found. In three of the subjects, the paretic soleus activation during the propulsion phase of stance was reduced during the powered assistance compared to unassisted walking (35% reduction in the integrated EMG amplitude during the third powered session). Conclusions This feasibility study demonstrated that the exoskeleton can enhance paretic ankle moment. Future studies with greater sample size and prolonged sessions are warranted to evaluate the effects of the powered ankle exoskeleton on overall gait outcomes in persons post-stroke.
title: High-resolution CT findings of pulmonary infections in immunocompromised patients: a pattern based approach
Creators: name: Kunihiro, Yoshie
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Lung
subject: CT-High Resolution
subject: Education
subject: Infection

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of this exhibit is to categorize the high-resolution CT (HRCT) findings of pulmonary infections in immunocompromised hosts and to determine the HRCT patterns associated with the each...
Data visualization for incomplete data
Creators: name: Oberman, Hanne I.
Publisher: name: Zenodo
Year: 2023
Subjects: missing data
data visualization
data imputation
R

description: Missing data are ubiquitous in the social and human data sciences. Computational pipelines that accommodate incomplete data require exploration and evaluation of the missingness. The R package ggmice enables data analysts to visualize incomplete and imputed data.
The quality of care for adults with epilepsy: an initial glimpse using the QUIET measure
Creators: name: Pugh, Mary
name: Rao, Jaya K
name: Kazis, Lewis E
name: Tabares, Jeffrey
name: Shapiro, Gabriel
name: Jarrett, Kelli
name: Avetisyan, Ruzan
name: Hanchate, Amresh
name: Berlowitz, Dan R
Publisher: name: BioMed Central Ltd
Year: 2011

description: Abstract Background We examined the quality of adult epilepsy care using the Quality Indicators in Epilepsy Treatment (QUIET) measure, and variations in quality based on the source of epilepsy care. Methods We identified 311 individuals with epilepsy diagnosis between 2004 and 2007 in a tertiary medical center in New England. We abstracted medical charts to identify the extent to which participants received quality indicator (QI) concordant care for individual QI's and the proportion of recommended care processes completed for different aspects of epilepsy care over a two year period. Finally, we compared the proportion of recommended care processes completed for those receiving care only in primary care, neurology clinics, or care shared between primary care and neurology providers. Results The mean proportion of concordant care by indicator was 55.6 (standard deviation = 31.5). Of the 1985 possible care processes, 877 (44.2%) were performed; care specific to women had the lowest concordance (37% vs. 42% [first seizure evaluation], 44% [initial epilepsy treatment], 45% [chronic care]). Individuals receiving shared care had more aspects of QI concordant care performed than did those receiving neurology care for initial treatment (53% vs. 43%; X2 = 9.0; p = 0.01) and chronic epilepsy care (55% vs. 42%; X2 = 30.2; p < 0.001). Conclusions Similar to most other chronic diseases, less than half of recommended care processes were performed. Further investigation is needed to understand whether a shared-care model enhances quality of care, and if so, how it leads to improvements in quality.
title: Normalization Technique with Histogram on Human Brain MRI from Different Acquisitions
Creators: name: Wang, Defeng
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Neuroradiology brain
subject: MR
subject: Computer Applications-General
subject: Image registration

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Magnetic resonance images (MRIs) with different imaging acquisitions have various image intensities. In order to conduct accurate image analysis, such as registration and segmentation, it is essential to perform intensity normalization of MRI. We...
title: CT evaluation of small bowel carcinoid tumors
Creators: name: Costa, Nuno
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Abdomen
subject: Gastrointestinal tract
subject: Small bowel
subject: CT
subject: Contrast agent-oral
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Neoplasia
subject: Metastases
subject: Obstruction / Occlusion

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review, describe and illustrate the spectrum of imaging findings of small bowel carcinoid tumors (SBCT) using abdominal computed tomography (CT) scan. Elucidate the most common appearances of SBCT liver metastases on CT...
What Is Software Engineering?
Creators: name: Dzerzhinskiy, Fedor
name: Raykov, Leonid D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.0

description: A later translation (2015) of the article in Russian published in 1990. The article proposes an approach to defining a set of basic notions for subject area of software engineering discipline. The set of notions is intended to serve as a basis for detection and correction of some widespread conceptual mistakes in the efforts aimed at improving the quality and work productivity in creation and operation of software.
description: 14 pages, In English
The relationship between unsupervised time after school and physical activity in adolescent girls
Creators: name: Davis, CE
Publisher: name: BioMed Central Ltd
Year: 2006

description: Abstract Background Rising obesity and declining physical activity levels are of great concern because of the associated health risks. Many children are left unsupervised after the school day ends, but little is known about the association between unsupervised time and physical activity levels. This paper seeks to determine whether adolescent girls who are without adult supervision after school are more or less active than their peers who have a caregiver at home. Methods A random sample of girls from 36 middle schools at 6 field sites across the U.S. was selected during the fall of the 2002–2003 school year to participate in the baseline measurement activities of the Trial of Activity for Adolescent Girls (TAAG). Information was collected using six-day objectively measured physical activity, self-reported physical activity using a three-day recall, and socioeconomic and psychosocial measures. Complete information was available for 1422 out of a total of 1596 respondents. Categorical variables were analyzed using chi square and continuous variables were analyzed by t-tests. The four categories of time alone were compared using a mixed linear model controlling for clustering effects by study center. Results Girls who spent more time after school (≥2 hours per day, ≥2 days per week) without adult supervision were more active than those with adult supervision (p = 0.01). Girls alone for ≥2 hours after school, ≥2 days a week, on average accrue 7.55 minutes more moderate to vigorous physical activity (MVPA) per day than do girls who are supervised (95% confidence interval ([C.I]). These results adjusted for ethnicity, parent's education, participation in the free/reduced lunch program, neighborhood resources, or available transportation. Unsupervised girls (n = 279) did less homework (53.1% vs. 63.3%), spent less time riding in a car or bus (48.0% vs. 56.6%), talked on the phone more (35.5% vs. 21.1%), and watched more television (59.9% vs. 52.6%) than supervised girls (n = 569). However, unsupervised girls also were more likely to be dancing (14.0% vs. 9.3%) and listening to music (20.8% vs. 12.0%) (p < .05). Conclusion Girls in an unsupervised environment engaged in fewer structured activities and did not immediately do their homework, but they were more likely to be physically active than supervised girls. These results may have implications for parents, school, and community agencies as to how to structure activities in order to encourage teenage girls to be more physically active.
Stochastic Quantum Zeno by Large Deviation Theory
Creators: name: Gherardini, Stefano
name: Gupta, Shamik
name: Cataliotti, Francesco Saverio
name: Smerzi, Augusto
name: Caruso, Filippo
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Quantum measurements are crucial to observe the properties of a quantum system, which however unavoidably perturb its state and dynamics in an irreversible way. Here we study the dynamics of a quantum system while being subject to a sequence of projective measurements applied at random times. In the case of independent and identically distributed intervals of time between consecutive measurements, we analytically demonstrate that the survival probability of the system to remain in the projected state assumes a large-deviation (exponentially decaying) form in the limit of an infinite number of measurements. This allows us to estimate the typical value of the survival probability, which can therefore be tuned by controlling the probability distribution of the random time intervals. Our analytical results are numerically tested for Zeno-protected entangled states, which also demonstrates that the presence of disorder in the measurement sequence further enhances the survival probability when the Zeno limit is not reached (as it happens in experiments). Our studies provide a new tool for protecting and controlling the amount of quantum coherence in open complex quantum systems by means of tunable stochastic measurements.
description: 21 pages, 6 figures
title: A pictorial essay of conventional lymphography for detection of lymphatic leakage
Creators: name: Lam, Ka Cheong
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Haemodynamics / Flow dynamics
subject: Fistula
subject: Contrast agent-other
subject: Lymphography
subject: Respiratory system
subject: Lymph nodes
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To demonstrate the usefulness oflymphography in current era focusing on chylous syndromes, i.e. chylous ascites, chylothorax and...
title: Metastatic involvement of the ovaries: incidence, origin, CT and MRI features and histopathological correlation.
Creators: name: Virarkar, Mayur
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Cancer
subject: Surgery
subject: CT
subject: Oncology
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: A study of radiological features of metastatic involvement of the ovaries from other primaries, under certain clinical conditions and appropriate multidisciplinarymanagement of these...
The population of galaxy-galaxy strong lenses in forthcoming optical imaging surveys
Creators: name: Collett, Thomas E
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Ongoing and future imaging surveys represent significant improvements in depth, area and seeing compared to current data-sets. These improvements offer the opportunity to discover up to three orders of magnitude more galaxy-galaxy strong lenses than are currently known. In this work we forecast the number of lenses discoverable in forthcoming surveys and simulate their properties. We generate a population of statistically realistic strong lenses and simulate observations of this population for the Dark Energy Survey (DES), Large Synoptic Survey Telescope (LSST) and Euclid surveys. We verify our model against the galaxy-scale lens search of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS), predicting 250 discoverable lenses compared to 220 found by Gavazzi et al (2014). The predicted Einstein radius distribution is also remarkably similar to that found by Sonnenfeld et al (2013). For future surveys we find that, assuming Poisson limited lens galaxy subtraction, searches in DES, LSST and Euclid datasets should discover 2400, 120000, and 170000 galaxy-galaxy strong lenses respectively. Finders using blue minus red (g-i) difference imaging for lens subtraction can discover 1300 and 62000 lenses in DES and LSST. The uncertainties on the model are dominated by the high redshift source population which typically gives fractional errors on the discoverable lens number at the tens of percent level. We find that doubling the signal-to-noise ratio required for a lens to be detectable, approximately halves the number of detectable lenses in each survey, indicating the importance of understanding the selection function and sensitivity of future lens finders in interpreting strong lens statistics. We make our population forecasting and simulated observation codes publicly available so that the selection function of strong lens finders can easily be calibrated.
description: Accepted for publication in ApJ. The code is publicly available at http://github.com/tcollett/LensPop . Tables of properties of the lenses discoverable by DES, LSST and Euclid are also available at the same url