cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effects of cumulative forest disturbances on hydrology in the interior of British Columbia, Canada
Creators: name: Zhang, Mingfang
Publisher: name: University of British Columbia
Year: 2013

description: Research on forest disturbances and their impacts on hydrology in large watersheds (>500 km2) is limited. Forest disturbances such as harvesting, wildfire and insect infestation are cumulative over space and time in large watersheds. The major objectives of this study were: 1) to assess the impacts of cumulative forest disturbances on annual and seasonal mean flows; 2) to evaluate the impacts of cumulative forest disturbances on flow regimes (magnitude, timing, duration, frequency, and variability); and 3) to conduct an integrated analysis, and discuss their ecological implications. The six selected large watersheds experiencing various levels of forest disturbances along environmental gradients in the BC interior include the Willow River, Cottonwood River, Baker Creek, Moffat Creek, Tulameen River, and Ashnola River watersheds. Cumulative equivalent clear-cut area (CECA) was used to indicate cumulative forest disturbances. A novel methodology combining advanced statistical methods (e.g., time series analysis) with graphical methods (modified double mass curve and flow duration curve) was employed to conduct statistical and quantitative assessments. The analysis demonstrates that forest disturbances produced significant impacts on annual mean flows and some of the seasonal mean flows in the intensively disturbed watersheds including Willow River, Baker River, Moffat Creek, and Tulameen River watersheds. Forest disturbances and climate variability have produced counteracting effects or joint positive effects on streamflow in these watersheds. The comparisons suggest that the wetter years or the wetter watersheds were more sensitive to forest disturbances as compared with the drier years or the drier watersheds. Using the long-term data on the hydrological responses in the Willow and Tulameen River watersheds, a pattern of reduced impact strengths over time probably due to watershed resilience was discovered. Forest disturbances significantly altered the magnitude, timing, variability, duration, and frequency of high flows in the Baker Creek, Moffat Creek, and Willow River watersheds. Less pronounced impacts on low flow regimes and inconsistent relationships between forest disturbances and low flow regimes were found. These findings are of great implications for designing forest and watershed management strategies to protect watershed ecological functions and public safety in the context of future forest and climate changes.
title: Concordance between radiological and surgical PCI in peritoneal carcinomatosis.
Creators: name: Cernuda García, Alejandro
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Surgery
subject: CT
subject: Abdomen
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The peritonectomy associated with HIPEC (Hyperthermic Intraperitoneal Chemotherapy) is an aggressive therapeutic technique with a curative potential of PC (Peritoneal Carcinomatosis).It requires an adequate selection of patients through PCI...
title: Sacroiliac joint imaging: inflammatory or degenerative disorder? that is the question
Creators: name: ELFAKIR, sophia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Radiographers
subject: Musculoskeletal joint
subject: MR
subject: Comparative studies
subject: Imaging sequences
subject: Demineralisation-Bone
subject: Inflammation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The sacroiliac (SI) joint is a complex anatomical region that make it one of the more challenging joints to image. This articulation has several interesting features. Despite being the largest joint in the axial skeleton and supportting the weight...
A predicted Francisella tularensis DXD-motif glycosyltransferase blocks immune activation
Creators: name: Nau, Gerard J.
name: Horzempa, Joseph
name: O’Dee, Dawn
name: Brown, Matthew J.
name: Russo, Brian C.
name: Hernandez, Ana
name: Dillon, Simon T.
name: Cheng, Jing
name: Kane, Lawrence P.
name: Sanker, Subramaniam
name: Hukriede, Neil A.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Pathogens enhance their survival during infections by manipulating host defenses. Francisella tularensis evades innate immune responses, which we have found to be dependent on an understudied gene ybeX (FTL_0883/FTT_0615c). To understand the function of YbeX, we sought protein interactors in F. tularensis subsp. holarctica live vaccine strain (LVS). An unstudied Francisella protein co-immunoprecipitated with recombinant YbeX, which is a predicted glycosyltransferase with a DXD-motif. There are up to four genomic copies of this gene with identical sequence in strains of F. tularensis pathogenic to humans, despite ongoing genome decay. Disruption mutations were generated by intron insertion into all three copies of this glycosyltransferase domain containing gene in LVS, gdcA1-3. The resulting strains stimulated more cytokines from macrophages in vitro than wild-type LVS and were attenuated in two in vivo infection models. GdcA was released from LVS during culture and was sufficient to block NF-κB activation when expressed in eukaryotic cells. When co-expressed in zebrafish, GdcA and YbeX were synergistically lethal to embryo development. Glycosyltransferases with DXD-motifs are found in a variety of pathogens including NleB, an Escherichia coli type-III secretion system effector that inhibits NF-κB by antagonizing death receptor signaling. To our knowledge, GdcA is the first DXD-motif glycosyltransferase that inhibits NF-κB in immune cells. Together, these findings suggest DXD-motif glycosyltransferases may be a conserved virulence mechanism used by pathogenic bacteria to remodel host defenses.
title: Characterization of Adrenal lesions using Dual energy CT(DECT) and comparison of Virtual unenhanced CT with Chemical shift MRI in the evaluation of adrenal adenomas
Creators: name: Gulati, Ajay
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Comparative studies
subject: MR
subject: CT
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: 1.To characterize adrenal lesions using Dual energy Computed tomography (DECT) and also evaluate their functional status with biochemical and hormonal assessment. 2.To correlate virtual non enhanced CT with chemical shift MRI in evaluating adrenal...
Dynamic screening of a localized hole during photoemission from a metal cluster
Creators: name: Koval, N. E.
name: Sánchez-Portal, D.
name: Borisov, A. G.
name: Muiño, R. Díez
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent advances in attosecond spectroscopy techniques have fueled the interest in the theoretical description of electronic processes taking place in the subfemtosecond time scale. Here we study the coupled dynamic screening of a localized hole and a photoelectron emitted from a metal cluster using a semi-classical model. Electron density dynamics in the cluster is calculated with Time-Dependent Density Functional Theory and the motion of the photoemitted electron is described classically. We show that the dynamic screening of the hole by the cluster electrons affects the motion of the photoemitted electron. At the very beginning of its trajectory, the photoemitted electron interacts with the cluster electrons that pile up to screen the hole. Within our model, this gives rise to a significant reduction of the energy lost by the photoelectron. Thus, this is a velocity dependent effect that should be accounted for when calculating the average losses suffered by photoemitted electrons in metals.
description: 15 pages, 5 figures
title: Evaluation of computed tomography protocols in acute stroke and radiation dose in Greek hospitals
Creators: name: Duni, Robert
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: CNS
subject: Computer applications
subject: CT
subject: CT-Angiography
subject: Dosimetry
subject: Radiation safety
subject: Technical aspects
subject: Acute

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The present article aims to give a comprehensive account of the imaging of acute stroke in Greece. The research that was conducted here is focused, not only in the basic issues of Eurosafe imaging, but also in introducing and modifying questions in...
unboxing the hackathon - ethnographic perspectives
Creators: name: Anne, Steele
Publisher: name: Zenodo
Year: 2023

description: Presented at Hack the Hackathon 3.0 in Geneva, Switzerland. Nov 6-10, 2023.
Hack the Hackathon 3 was held as a hybrid meeting both at the at the SDG Solution Space in Geneva, Switzerland, and online. For this third iteration, our goal was to build on conversations started at the first two workshops, as well as develop new ideas and initiatives, and continue to grow and expand the community of hackathon practitioners and researchers.
This year, we joined forces with IdeaSquare at CERN and the UN Library with an emphasis on promoting civic engagement.
title: Radiological features of acute testicular pain
Creators: name: Anand, Prem
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Trauma
subject: Acute
subject: Education
subject: Diagnostic procedure
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Pelvis

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To explore the various features of acute testicular pain in correlation to ultrasonography/color doppler. 2.The need for ultrasonography/color doppler in differentiating the causes of acute testicular pain and plan further management. 3. To...
Anaerobic co-digestion of fruit juice and municipal bio-waste in the Okanagan Valley
Creators: name: Barrantes Leiva, Mariel
Publisher: name: University of British Columbia
Year: 2014

description: Fruit harvesting and juice making is one of the most important sectors in the Okanagan Valley. Fruit- juice production generates industrial wastewater with high organic strength that needs to be treated, generally on-site, prior to being discharged to the municipal wastewater treatment system. In the Okanagan Valley, the organic residuals of fruit-juice wastewater treatment, such as screen cake and thickened waste activated sludge, are currently being sent to local landfills or composting facilities, which is not desirable. Given the growing interest in utilizing industrial, agricultural and municipal waste streams in centralized bioreactors for optimized energy (biogas) recovery, this study evaluated the anaerobic co-digestion performance of industrial organic streams from Sun-Rype Products Ltd. wastewater treatment facility with municipal waste sludge cake from Kelowna’s municipal wastewater treatment plant. Excess landfill leachate source at the Glenmore Landfill was also utilized to dilute some of the concentrated streams and provided additional buffering capacity. Both single and co-digestion scenarios were tested in laboratory-scale mesophilic and thermophilic semi-continuous flow digesters at sludge retention times of 20 and 10 days, corresponding to organic digester loading rates of 1.41-4.80 g chemical oxygen demand /L/day. Digestion studies demonstrated that co-digestion of fruit-juice streams with municipal sludge cake and leachate resulted in more stable operation even at the higher loading due to additional buffering capacity available compare to single scenarios. In addition, organic removal efficiencies were higher for the co-digestion scenarios. Furthermore, dewaterability of municipal sludge cake was enhanced by the addition of industrial secondary sludge. Thermophilic digestates could qualify under Class A biosolids according to Organic Matter Recycling Regulation (OMRR) of BC in terms of coliform presence; however presence of higher coliforms at mesophilic digestion temperatires downgraded the mesophilic digestates to Class B biosolids. Finally, ppreliminary cost analysis indicated an overall saving of $10.52 million ($2 million in capital and $8.52 million in operational) over 25-year period for a co-digestion scenario utilizing all waste streams over building/operating two separate digesters for municipal and industrial waste streams.
${\cal N}=3$ Supersymmetric Effective Action of D2-branes in Massive IIA String Theory
Creators: name: Go, Gyungchoon
name: Kwon, O-Kab
name: Tolla, D. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain a new-type of ${\cal N}=3$ Yang-Mills Chern-Simons theory from the Mukhi-Papageorgakis Higgsing of the ${\cal N}=3$ Gaiotto-Tomasiello theory. This theory has ${\cal N}=1$ BPS fuzzy funnel solution which is expressed in terms of the seven generators of SU(3), excluding $T_8$. We propose that this is an effective theory of multiple D2-branes with D6- and D8-branes background in massive IIA string theory.
description: 22 pages, positive definite form of potential is added, some comments are changed
Self-attraction effect and correction on three absolute gravimeters
Creators: name: Biolcati, Emanuele
name: Svitlov, Sergiy
name: Germak, Alessandro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The perturbations of the gravitational field due to the mass distribution of an absolute gravimeter have been studied. The so called Self Attraction Effect (SAE) is crucial for the measurement accuracy, especially for the International Comparisons, and for the uncertainty budget evaluation. Three instruments have been analysed: MPG-2, FG5-238 and IMPG-02. The SAE has been calculated using a numerical method based on FEM simulation. The observed effect has been treated as an additional vertical gravity gradient. The correction (SAC) to be applied to the computed g value has been associated with the specific height level, where the measurement result is typically reported. The magnitude of the obtained corrections is of order 1E-8 m/s2.
description: 14 pages, 8 figures, submitted to Metrologia
Quasi-Hermitian Hamiltonians associated with exceptional orthogonal polynomials
Creators: name: Midya, Bikashkali
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the method of point canonical transformation, we derive some exactly solvable rationally extended quantum Hamiltonians which are non-Hermitian in nature and whose bound state wave functions are associated with Laguerre- or Jacobi-type $X_1$ exceptional orthogonal polynomials. These Hamiltonians are shown, with the help of imaginary shift of co-ordinate: $ e^{-αp} x e^{αp} = x+ i α$, to be both quasi and pseudo-Hermitian. It turns out that the corresponding energy spectra is entirely real.
title: Image quality of a 1-Tesla open MRI scanner for evaluation of cardiac diseases
Creators: name: Alì, Marco
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiac
subject: MR
subject: Imaging sequences
subject: Artifacts

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: During the last years, cardiovascular magnetic resonance (CMR) has emerged as an alternative non-invasive and radiation-free imaging tool for the evaluation of patients with cardiovascular diease, providing an accurate morpho-functional...
title: Keep calm and read the report: analyzing musculoskeletal radiological reports
Creators: name: Novo, Ulrike
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal system
subject: PACS
subject: Efficacy studies
subject: Economics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The radiology report is one of the most important parts of a radiologist’s work as it is themeans of communication between the radiologists and the clinicians. Clinicians only knowradiologists by their reports, and radiologists usually do not know...
Characterization of ellipses as uniformly dense sets with respect to a family of convex bodies
Creators: name: Magnanini, Rolando
name: Marini, Michele
Publisher: name: arXiv
Year: 2012
Subjects: subject: Metric Geometry (math.MG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Let K \subset R^N be a convex body containing the origin. A measurable set G \subset R^N with positive Lebesgue measure is said to be uniformly K-dense if, for any fixed r > 0, the measure of G \cap (x + rK) is constant when x varies on the boundary of G (here, x + rK denotes a translation of a dilation of K). We first prove that G must always be strictly convex and at least C1,1-regular; also, if K is centrally symmetric, K must be strictly convex, C1,1-regular and such that K = G - G up to homotheties; this implies in turn that G must be C2,1- regular. Then for N = 2, we prove that G is uniformly K-dense if and only if K and G are homothetic to the same ellipse. This result was already proven by Amar, Berrone and Gianni in [3]. However, our proof removes their regularity assumptions on K and G and, more importantly, it is susceptible to be generalized to higher dimension since, by the use of Minkowski's inequality and an affine inequality, avoids the delicate computations of the higher-order terms in the Taylor expansion near r = 0 for the measure of G\cap(x+rK) (needed in [3]).
title: Enchondroma Vs Low grade Chondrosarcoma : Differentiating features and role of imaging in management
Creators: name: THAKKAR, JAY
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Molecular imaging
subject: Biopsy
subject: PET-CT
subject: Digital radiography
subject: CT
subject: Musculoskeletal bone
subject: Extremities
subject: Bones
subject: Neoplasia
subject: Tissue characterisation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Toacquire basic and advance clinical and radiological knowldge of both the chondroid tumours Enchondroma and Chondrosarcoma. Toknow differentiation between these two clinically and radiologically as many times histological findings are inconclusive....
Integrability properties and limit theorems for the exit time from a cone of planar Brownian motion
Creators: name: Vakeroudis, Stavros
name: Yor, Marc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We obtain some integrability properties and some limit theorems for the exit time from a cone of a planar Brownian motion, and we check that our computations are correct via Bougerol's identity.
description: Published in at http://dx.doi.org/10.3150/12-BEJ438 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Symmetry restoration in Hartree-Fock-Bogoliubov based theories
Creators: name: Bertsch, G. F.
name: Robledo, L. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a pfaffian formula for projection and symmetry restoration for wave functions of the general Bogoliubov form, including quasiparticle excited states and linear combinations of them. This solves a long-standing problem in calculating states of good symmetry, arising from the sign ambiguity of the commonly used determinant formula. A simple example is given of projecting good particle number and angular momentum from a Bogoliubov wave function in the Fock space of a single j-shell.
description: 5 pages and 1 table, revised version include more general results
The timing, composition, and petrogenesis of syn- to post-accretionary magmatism in the northern Cordilleran miogeocline, eastern Yukon and southwestern Northwest Territories
Creators: name: Rasmussen, Kirsten Louise
Publisher: name: University of British Columbia
Year: 2013

description: Syn- to post-accretionary magmatic episodes of Cretaceous to Eocene age comprises the most voluminous magmatism in the northern Cordillera. Our understanding of the age, composition, and petrogenesis of this magmatism thus far, however, has been severely limited by a lack of robust geochronological, geochemical, and isotopic datasets for these rock units. This study fills the need for better temporal and compositional constraints on mainly Early to ‘mid’-Cretaceous (~115–90 Ma) magmatism in the Cassiar Terrane and eastern Selwyn Basin regions of the northern Cordilleran miogeocline. An extensive set of new U–Pb and ⁴⁰Ar/³⁹Ar age data, together with major and trace element geochemical analyses, radiogenic (Nd, Sr, Pb, and Hf) and stable (S and O) isotopic compositions, and detailed magmatic fluid compositional studies of intrusive rocks in the northern Cordillera are presented here. These results, and the integration of compiled datasets, have led to the identification of several new plutonic suites and sub-suites, as well as modifications of previously defined plutonic suites. Inferences regarding the age and composition of the basement to the northern Cordilleran miogeocline have also been made based on mineralogical, geochemical, and isotopic interpretations of magma sources for crustally derived plutonic suites from across this region. These extensive datasets have also allowed a re-evaluation of previously proposed models for syn- to post-accretionary magmatic episodes, and have resulted in the proposal of modified tectono–magmatic models for the particularly voluminous Early to ‘mid’-Cretaceous magmatic episode. Finally, estimates of magmatic fluid compositions determined from apatite and biotite compositions (with respect to HF, HCl, and H₂O) and extended cooling histories indicated by U–Pb and ⁴⁰Ar/³⁹Ar geochronology, have been used to identify intrusive phases (locally and regionally) that are associated with reduced tungsten skarn mineralization, which comprises some of the most economically important intrusion-related mineralization in the northern Cordillera. Collectively, this work has substantially advanced the current knowledge of syn- to post-accretionary magmatism in the northern Cordillera, and it has broad implications for similar magmatic provinces world-wide.
title: Quantitative ADC evaluation of breast carcinoma: Correlation of diffusional properties with tumour grades and immunohistochemical subtypes.
Creators: name: Ramli Hamid, Marlina
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Breast
subject: MR-Diffusion/Perfusion
subject: Imaging sequences
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the correlation of the Diffusion Weighted Imaging (DWI) and mean Apparent Diffusion Coefficient (ADC) values with immunohistochemical subtypes of breast cancer patients in a single center study. To assess the possibility of predicting...
Channel Capacity under Sub-Nyquist Nonuniform Sampling
Creators: name: Chen, Yuxin
name: Goldsmith, Andrea J.
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper investigates the effect of sub-Nyquist sampling upon the capacity of an analog channel. The channel is assumed to be a linear time-invariant Gaussian channel, where perfect channel knowledge is available at both the transmitter and the receiver. We consider a general class of right-invertible time-preserving sampling methods which include irregular nonuniform sampling, and characterize in closed form the channel capacity achievable by this class of sampling methods, under a sampling rate and power constraint. Our results indicate that the optimal sampling structures extract out the set of frequencies that exhibits the highest signal-to-noise ratio among all spectral sets of measure equal to the sampling rate. This can be attained through filterbank sampling with uniform sampling at each branch with possibly different rates, or through a single branch of modulation and filtering followed by uniform sampling. These results reveal that for a large class of channels, employing irregular nonuniform sampling sets, while typically complicated to realize, does not provide capacity gain over uniform sampling sets with appropriate preprocessing. Our findings demonstrate that aliasing or scrambling of spectral components does not provide capacity gain, which is in contrast to the benefits obtained from random mixing in spectrum-blind compressive sampling schemes.
description: accepted to IEEE Transactions on Information Theory, 2014
title: Diagnostic accuracy of brain MRI in predicting histhologic grade of meningioma
Creators: name: Iranpour, Pooya
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: MR-Diffusion/Perfusion
subject: MR
subject: CNS

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Meningioma is the most common primary intracranial neoplasm with a prevalence rate of 20-30%. [1,2] According to World Health Organization (WHO) 88-94% of meningiomas are classified as WHO I which are benign tumors, however, 5-7% of meningioma are...
THE THEORY OF TRUTHISM: ELABORATING THE CONCEPTS OF STRESS AND ANXIETY
Creators: name: MEISAM NABIRI
Publisher: name: Zenodo
Year: 2023
Subjects: Truthlet, Truthism, Anxiety, Stress, Truthletfulness, Truthletism.

description: Abstract
In this article, the researchers examine and analyze anxiety and stress from a different point of view and according to the characteristic of truth-seeking. In the approach of Truthism, human truth-seeking is considered the main element and factor of the theory. This attribute and characteristic of humans are expressed as the truth-seeking instinct. In this theory, stress and anxiety are entirely separate. Stress can be an enemy or a guide for a person. Anxiety, the result and the product of unresolved and old human stress, is a sign of illness. Therefore, a concept called "normal anxiety" does not exist in this theory. According to logic, human ignorance causes anxiety caused by unresolved stress. The treatment of anxiety in this theory is done with cognitive and behavioral dialectics. It occurs in the context of non-prejudice by accepting universal truths and obeying inevitable facts according to collective wisdom. The treatment occurs in slow steps and in the present time, paying attention to the truths the individual believes.
Higher Spin Black Holes from CFT
Creators: name: Gaberdiel, Matthias R.
name: Hartman, Thomas
name: Jin, Kewang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Higher spin gravity in three dimensions has explicit black holes solutions, carrying higher spin charge. We compute the free energy of a charged black hole from the holographic dual, a 2d CFT with extended conformal symmetry, and find exact agreement with the bulk thermodynamics. In the CFT, higher spin corrections to the free energy can be calculated at high temperature from correlation functions of W-algebra currents.
description: 24 pages; v2 reference added
Understanding social comparison, self-esteem and body image concerns of Instagram users : the impact of perceived ephemerality and permanency of Instagram content
Creators: name: Kim, Soomin
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Instagram
Social comparison
Self-esteem
Body image concerns
Ephemeral social media
Permanent social media

description: Instagram, one of the fastest-growing social media networks, provides users with different features. Two primary Instagram features are Instagram posts and Instagram stories. Instagram post allows users to upload photos or videos and share them with their followers. The content stays on the users’ social media feed unless the content is deleted. Instagram story has an ephemeral nature as the content uploaded vanishes after 24 hours. This study was designed to examine individual's psychological constructs when using different Instagram messages. Social comparison, self-esteem, and body image concerns based on user's perception of ephemerality and permanency were examined. Instagram usage habits were examined as well, for both story and post. An online survey was distributed through the University of Texas at Austin’s advertising participant pool and linear regression was used through SPSS to find significant relationships. First, results demonstrated no significant relationship between the perceived permanency of Instagram posts, social comparison, self-esteem, and body image concerns as the content can be removed whenever the user desires. On the other hand, the perception of ephemerality on Instagram story negatively influenced social comparison and body image concerns while there was no significant relationship with self-esteem. Overall, the result of the present study aligns with previous research, as Instagram users who socially compare are likely to have lower self-esteem and have higher body image concerns.
Rigid spheres in Riemannian spaces
Creators: name: Gittel, Hans-Peter
name: Jezierski, Jacek
name: Kijowski, Jerzy
name: Łȩski, Szymon
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Choice of an appropriate (3+1)-foliation of spacetime or a (2+1)-foliation of the Cauchy space, leads often to a substantial simplification of various mathematical problems in General Relativity Theory. We propose a new method to construct such foliations. For this purpose we define a special family of topological two-spheres, which we call "rigid spheres". We prove that there is a four-parameter family of rigid spheres in a generic Riemannian three-manifold (in case of the flat Euclidean three-space these four parameters are: 3 coordinates of the center and the radius of the sphere). The rigid spheres can be used as building blocks for various ("spherical", "bispherical" etc.) foliations of the Cauchy space. This way a supertranslation ambiguity may be avoided. Generalization to the full 4D case is discussed. Our results generalize both the Huang foliations (cf. \cite{LHH}) and the foliations used by us (cf. \cite{JKL}) in the analysis of the two-body problem.
description: 23 pages
title: Interobserver Agreement between On-Call Radiology Resident and General Radiologist Interpretations of MR and CT Venograms in suspected cases of Cerebral Vein Thrombosis
Creators: name: Iranpour, Pooya
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: CNS
subject: CT
subject: CT-Angiography
subject: MR-Angiography
subject: Diagnostic procedure
subject: Embolism / Thrombosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cerebral vein thrombosis (CVT) is one of the causes of brain infarction [1]. Diagnosis of the diseaseis usually performed by CTV and MRV; each with its own advantages and disadvantages [2]. The correct diagnosis of the disease has a great influence...
Equity in gifted education : an examination of gifted programs in Florida
Creators: name: Hardwick, Grace Lillian
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Gifted education
Gifted and talented education
Gifted equity
Florida

description: Gifted and Talented programs are common throughout the United States and typically enroll a disproportional number of advantaged students. This report will examine that issue by using the gifted programs and policies in Florida and Broward County Public Schools as case studies. Through historical research, interviews and overview of existing studies of gifted programs in Florida and Broward County Public Schools this report will provide insight into the historical development of gifted education policies in Florida, current research in gifted education and existing gifted education programs. This report will also make specific recommendations for teachers, school administrators and state officials to improve access for underrepresented students in gifted programs.
Isotope sensitive measurement of the hole-nuclear spin interaction in quantum dots
Creators: name: Chekhovich, E. A.
name: Krysa, A. B.
name: Hopkinson, M.
name: Senellart, P.
name: Lemaitre, A.
name: Skolnick, M. S.
name: Tartakovskii, A. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Decoherence caused by nuclear field fluctuations is a fundamental obstacle to the realization of quantum information processing using single electron spins. Alternative proposals have been made to use spin qubits based on valence band holes having weaker hyperfine coupling. However, it was demonstrated recently both theoretically and experimentally that the hole hyperfine interaction is not negligible, although a consistent picture of the mechanism controlling the magnitude of the hole-nuclear coupling is still lacking. Here we address this problem by performing isotope selective measurement of the valence band hyperfine coupling in InGaAs/GaAs, InP/GaInP and GaAs/AlGaAs quantum dots. Contrary to existing models we find that the hole hyperfine constant along the growth direction of the structure (normalized by the electron hyperfine constant) has opposite signs for different isotopes and ranges from -15% to +15%. We attribute such changes in hole hyperfine constants to the competing positive contributions of p-symmetry atomic orbitals and the negative contributions of d-orbitals. Furthermore, we find that the d-symmetry contribution leads to a new mechanism for hole-nuclear spin flips which may play an important role in hole spin decoherence. In addition the measured hyperfine constants enable a fundamentally new approach for verification of the computed Bloch wavefunctions in the vicinity of nuclei in semiconductor nanostructures.
title: Creation of Annotated Image Datasets to Support Deep Learning
Creators: name: Vining, David
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Outcomes
subject: Experimental investigations
subject: Computer Applications-General
subject: Structured reporting
subject: RIS
subject: PACS
subject: Artificial Intelligence
subject: Education and training
subject: Workforce

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Comprehend the principles of deep learning. Recognize the infrastructure that is needed to support deep learning (DL) initiatives. Learn how to efficiently create annotated image datasets that are required to train and validate DL...
Women and nail art : a descriptive case study
Creators: name: Pierce, Alexis Barkley
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Art education
Visual culture
Nail art
Feminist research
Case study

description: The purpose of this study is to investigate why some millennial women in Austin, Texas wear nail art. This descriptive case study used content analysis to analyze interview transcriptions from three female participants who either wear nail art or paint nail art. Text from the interviews was coded and categorized into three themes: expression, bonding, and social media. Each theme reflects how participants responded to the interview questions.
Interactive, participatory educational spaces in Denver Art Museum’s Martin Building
Creators: name: Davis, Julia Frances
name: 0000-0003-4641-9862
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Art education
Museum education
Interactive
Participatory
Denver Art Museum

description: The staff of the Denver Art Museum (DAM) has embarked on a project of reimagining the integrated education spaces inside their renovated galleries in the Martin Building, which I explore through this study. I'm using the Denver Art Museum and the Martin Building as a case study to investigate the rationale behind interactive and participatory educational spaces and how they are being incorporated into the institution. By inquiring into the design and planning process, the emphasis was on hearing from staff about how they want to take these spaces forward in the future. My study searched for and found areas in which the Martin Building renovation aligns with the DAM's priorities since the revitalization has enabled staff to reconsider and rework how the building is used. The study provides a focused view of the importance and influence of these interactive, participatory educational spaces as staff looks to the potential that the redesign offers. By looking at examples of the previous educational areas and at the construction of upcoming spaces in the Denver Art Museum from the eyes of people who work with them, I can explore the strengths and challenges of this design process.
title: Do we really need CT or CEMRA for the evaluation of renal arteries? Morphologic and functional MRI with Phase Contrast and Inflow balanced-SSFP with IR saturation sequences
Creators: name: Rossi, Piercarlo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Haemodynamics / Flow dynamics
subject: Imaging sequences
subject: MR-Angiography
subject: Vascular
subject: MR physics
subject: Kidney

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - To explain the advantages compared to other diagnostic techniques of phase contrast (PC) and inflow balanced-SSFP with IR saturation (IFIR) sequences in the renal artery stenosis (RAS) diagnosis. - To review MRI semeiotics of these two...
Modeling of aluminum evaporation during electron beam cold hearth melting of titanium alloy ingots
Creators: name: Shuster, Riley Evan
Publisher: name: University of British Columbia
Year: 2013

description: Electron beam cold heart melting (EBCHM) is a consolidation and refining process capable of consolidating titanium scrap and sponge material into high quality titanium alloy ingots. Unlike other consolidation processes for titanium, EBCHM is efficient in removing both high and low density inclusions. During the final stage of casting in EBCHM, operators must balance the potential to form large shrinkage voids, caused by turning off the electron beam heating, against the tendency to evaporate alloying additions, which occurs if the top surface remains molten. To this end, a comprehensive understanding of the evaporation and fluid flow conditions occurring during the final stage of EBCHM is required in order to optimize ingot production. This research focused on developing a coupled thermal, fluid flow and composition model, capable of predicting the temperature, fluid flow and composition fields within an EBCHM cast, Ti-6Al-4V ingot. The physical phenomena of thermal and compositional buoyancy, mushy zone flow attenuation and aluminum evaporation were incorporated in the model formulation. Industrial scale experiments were carried out at the production facilities of a leading industrial producer of titanium to provide data and measurements used for model verification. The model has been used to study the effects of variation of electron beam power input and hot top time duration on the evaporative losses and position of solidification voids. Model predictions for liquid pool profile, last liquid to solidify and composition fields are in good agreement with the industrially measured results. Sensitivity analysis was performed by varying electron beam power and hot top duration independently and observing the effect on the composition fields and last liquid to solidify. For the cases examined, there was a strong correlation between electron beam power and alloying element losses, while hot top duration variation results indicated a stronger dependence on last liquid to solidify than on alloying element losses. Therefore a classic optimization problem arises between balancing hot top duration with alloying element losses.
Whose lands’ slides? : social vulnerability to landslides in Rio de Janeiro and how the local plans affect it
Creators: name: Milani, Luísa Duarte
name: 0000-0002-9599-1550
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Social vulnerability
Disasters
Plan evaluation
Brazil

description: Rio de Janeiro has major historical, economic, and political importance in Brazil. The city also has a long history of disasters, particularly landslides, and although there have been mitigation efforts, they are still a common occurrence. Disaster as a research field is particularly comprehensive as it involves many fields, from engineering to social sciences, and while there is no consensus in some of the issues related to the field, social vulnerability and resilience are frequently discussed concepts. Social vulnerability focuses on the pre-existing social, political, economic, and physical aspects of a community, whereas resilience is largely understood as the ability to adapt to change, and “bounce back” after a stressful event. Additionally, it is known that local planning is essential for disaster mitigation. This work discusses the vulnerabilization process of the city of Rio de Janeiro and aims to contribute to the process of resilience building in the city by mapping social vulnerability and analyzing the current local policies in their ability to decrease social vulnerability. Literature about resilience, vulnerability to disasters, planning for disasters, and historic questions about Brazil and Rio de Janeiro was reviewed. The references used varied from official material produced by national and international agencies, newspaper articles, and academic sources. The materials were written in Portuguese, English, or Spanish. To map social vulnerability, CDC’s SVI was adapted for the Brazilian context to generate an index comparing Census Sectors within the city. Finally, local plans and policies were evaluated following the process described in the Plan Integration for Resilience Scorecard (Malecha et al, 2019), where planning districts and risk areas are overlayed to highlight incongruities. Results suggest that historical patterns of segregation still define the city. Correlations were found between overall social vulnerability and risk. However, Sectors with high vulnerability are located throughout the city, not only in risk areas. The policy evaluation showed a lack of quality and alignment between plans. To build resilience and prepare for climate change the city should make efforts to account for social vulnerability and risk in its policies, as well as improve the quality of its plans to implement them effectively.
Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves
Creators: name: Aceti, F.
name: Oset, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we present the connection between scattering amplitudes in momentum space and wave functions in coordinate space, generalizing previous work done for s-waves to any partial wave. The relationship to the wave function of the residues of the scattering amplitudes at the pole of bound states or resonances is investigated in detail. A sum rule obtained for the couplings provides a generalization to coupled channels, any partial wave and bound or resonance states, of Weinberg's compositeness condition, which was only valid for weakly bound states in one channel and s-wave. An example, requiring only experimental data, is shown for the $ρ$ meson indicating that it is not a composite particle of $ππ$ but something else.
title: Besserverdienende profitieren in der Rentenversicherung zunehmend von höherer Lebenserwartung
Creators: name: Haan, Peter
name: Kemptner, Daniel
name: Lüthen, Holger
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2019
Subjects: subject: H55 Social Security and Public Pensions
subject: I14 Health and Inequality
subject: J11 Demographic Trends, Macroeconomic Effects, and Forecasts
subject: mortality
subject: lifetime inequality
subject: pensions
subject: redistribution

description: Die Lebenserwartung der deutschen Bevölkerung steigt nicht nur im Zeitverlauf, sondern divergiert auch innerhalb der Jahrgänge zunehmend. Untersuchungen auf Basis von Administrativdaten der deutschen Rentenversicherung für westdeutsche, männliche Arbeitnehmer erlauben Rückschlüsse darauf, wie sich deren Lebenserwartung entwickelt, je nachdem wieviel Lohneinkommen über den Erwerbsverlauf erzielt wurde. Die Lebenserwartung der Geburtsjahrgänge 1926 bis 1928 liegt im Alter von 65 im obersten Lebenslohndezil vier Jahre höher als im untersten Dezil. Dieser Unterschied vergrößert sich auf sieben Jahre für die Geburtsjahrgänge 1947 bis 1949. Aufgrund der unterschiedlichen erwarteten Rentenbezugsdauer ergeben sich daraus relevante Verteilungswirkungen in der Gesetzlichen Rentenversicherung. Westdeutsche Arbeitnehmer können umso mehr Rentenzahlungen im Verhältnis zu ihren geleisteten Beiträgen erwarten, je mehr Lohneinkommen sie erzielt haben. Dass Menschen mit niedrigen Löhnen nicht nur weniger, sondern aufgrund der geringeren Lebenserwartung kürzer Rente beziehen, widerspricht dem Äquivalenzprinzip der deutschen Rentenversicherung und ist ein Argument für eine Aufwertung geringer Rentenansprüche, wie es aktuell politisch diskutiert wird.
description: DIW Wochenbericht, 86 (2019), 23, S. 391-399