cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Machine Learning-based Multiscale Topology Optimization
Creators: name: Najmon, Joel Christian
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 401799
subject: Mechanical engineering not elsewhere classified
classificationCode: 401001
subject: Engineering design
classificationCode: 490304
subject: Optimisation
classificationCode: 461104
subject: Neural networks

description: Multiscale topology optimization is a numerical method that enables the synthesis of hierarchical structures, offering greater design flexibility than single-scale topology optimization. However, this increased flexibility also incurs higher computational costs. Recent advancements have integrated machine learning models into MSTO methods to address this issue. Unfortunately, existing machine learning-based multiscale topology optimization (ML-MSTO) approaches underutilize the potential of machine learning models to surrogate the inner optimization, analysis, and numerical homogenization of arbitrary non-periodic microstructures. This dissertation presents an ML-MSTO method featuring displacement-driven topology-optimized microstructures (TOMs). The proposed method solves an outer optimization problem to design a homogenized macroscale structure and multiple inner optimization problems to obtain spatially distributed, non-periodic TOMs. The inner problem formulation employs the macroscale element densities and nodal displacements to define constraints and boundary conditions for microscale density-based topology optimization problems. Each problem yields a free-form TOM. To reduce computational costs, artificial neural networks (ANNs) are trained to predict their homogenized constitutive tensor. The ANNs also enable sensitivity coefficients to be approximated through a variety of standard derivative methods. The effect of the neural network-based derivative methods on topology optimization results is evaluated in a comparative study. An explicit dehomogenization approach is proposed, leveraging the TOMs of the ML-MSTO method. The explicit approach also features two post-processing schemes to improve the connectivity and clean the final multiscale structure. A 2D and a 3D case study are designed with the ML-MSTO method and dehomogenized with the explicit approach. The resulting multiscale structures are non-periodic with free-form microstructures. In addition, a second implicit dehomogenization approach is developed in this dissertation that allows the projection of homogenized mechanical property fields onto a discrete lattice structure of arbitrary shape. The implicit approach is capable of dehomogenizing any homogenized design. This is done by incorporating an optimization algorithm to find the lattice thickness distribution that minimizes the difference between a local target homogenized property and a corresponding lattice homogenized stiffness tensor. The result is a well-connected, functionally graded lattice structure, that enables control over the length scale, orientation, and complexity of the final microstructured design.
title: Testicular Magnetic Resonance (MRT): Our experience in 10 years
Creators: name: GRAZIANI, AGUSTINA
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Outcomes
subject: Epidemiology
subject: Statistics
subject: FOS: Mathematics
subject: Education
subject: Diagnostic procedure
subject: MR
subject: Genital / Reproductive system male
subject: Genitourinary

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: While the first image method to characterize testicular pathology is B-mode ultrasonography with color Doppler (US), Magnetic Resonance (MR) is useful for resolving discrepancies when the US findings are equivocal or suboptimal. The purpose of this...
Modelling of an eclipsing RS CVn-binary: V405 And
Creators: name: Vida, K.
name: Oláh, K.
name: Kővári, Zs.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: V405 And is an ultrafast-rotating (P_rot ~ 0.46 days) eclipsing binary. The system consists of a primary star with radiative core and convective envelope, and a fully convective secondary. Theories have shown, that stellar structure can depend on magnetic activity, i.e., magnetically active M-dwarfs should have larger radii. Earlier light curve modelling of V405 And indeed showed this behaviour: we found that the radius of the primary is significantly larger than the theoretically predicted value for inactive main sequence stars (the discrepancy is the largest of all known objects), while the secondary fits well to the mass-radius relation. By modelling our recently obtained light curves, which show significant changes of the spotted surface of the primary, we can find further proof for this phenomenon.
description: 2 pages, 1 figure, published in "From Interacting Binaries to Exoplanets: Essential Modeling Tools, Proceedings of the International Astronomical Union"
Semi-optimal Practicable Algorithmic Cooling
Creators: name: Elias, Yuval
name: Mor, Tal
name: Weinstein, Yossi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Algorithmic Cooling (AC) of spins applies entropy manipulation algorithms in open spin-systems in order to cool spins far beyond Shannon's entropy bound. AC of nuclear spins was demonstrated experimentally, and may contribute to nuclear magnetic resonance (NMR) spectroscopy. Several cooling algorithms were suggested in recent years, including practicable algorithmic cooling (PAC) and exhaustive AC. Practicable algorithms have simple implementations, yet their level of cooling is far from optimal; Exhaustive algorithms, on the other hand, cool much better, and some even reach (asymptotically) an optimal level of cooling, but they are not practicable. We introduce here semi-optimal practicable AC (SOPAC), wherein few cycles (typically 2-6) are performed at each recursive level. Two classes of SOPAC algorithms are proposed and analyzed. Both attain cooling levels significantly better than PAC, and are much more efficient than the exhaustive algorithms. The new algorithms are shown to bridge the gap between PAC and exhaustive AC. In addition, we calculated the number of spins required by SOPAC in order to purify qubits for quantum computation. As few as 12 and 7 spins are required (in an ideal scenario) to yield a mildly pure spin (60% polarized) from initial polarizations of 1% and 10%, respectively. In the latter case, about five more spins are sufficient to produce a highly pure spin (99.99% polarized), which could be relevant for fault-tolerant quantum computing.
description: 13 pages, 5 figures
title: Value of Quantitative Computed Tomography in Assessment of Chronic Obstructive Pulmonary Disease
Creators: name: Mousa, Mohammed
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Cross-sectional study
subject: Not applicable
subject: Chronic obstructive airways disease
subject: Computer Applications-General
subject: CT-Quantitative
subject: Lung
subject: Chest

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To evaluate the relationship between the commonly used quantitative computed tomography (QCT) parameters and commonly used clinical and spirometric measures used in COPD...
Safe haven: the role of social support and community inclusion in fostering leelings of belonging in a homeless shelter
Creators: name: Bell, Meaghan
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 146-153.
description: Includes a copy of Ethics Review form. Original with original copy of Partial Copyright Licence.
description: This study explores the role of community participation and social support networks in the daily lives of ten men in a homeless shelter. Shelter residents developed relationships among one another in order to recreate their spoiled identities into meaningful conceptions of self, based on a sense of belonging and purpose within the shelter community. Perceptions of solidarity within the shelter acted to counter feelings of social exclusion and generated a sense of commitment to the group. An unintended consequence ofthe shelter community has been the reluctance of residents to maintain independent living away from the shelter. This research highlights how these men have created their own place to belong, revealing the human side of shelter life, characterized by acceptance and companionship. The associations developed are creative and collaborative survival strategies allowing the men to negotiate and navigate their conditions of homelessness.
Voice as Action: Towards a Model for Analyzing the Dynamic Construction of Racialized Voice
Creators: name: Eidsheim, Nina
Publisher: name: Columbia University
Year: 1993
Subjects: Music

description: Vocal timbre is commonly believed to be an unmanipulable attribute,
akin to a sonic fingerprint.

Because the voice arises from inside the body,
quotidian discourse tends to refer to someone’s vocal sounds as inborn,
natural, and true expressions of the person. What, then, are we to make of
the common notion that a person’s race is audible in her voice? While it has
been conclusively demonstrated that many of the physiognomic aspects
historically employed as evidence of a person’s race—including skin color,
hair texture, and dialect or accent

—actually evidence nothing more than
the construction of race according to the ideological values of beholders,
vocal timbre continues to elude such deconstruction.

Recent critical thought on the intermingling of the physical senses,
including the so–called sensory turn in anthropology, “new materialist”
philosophies, and recent advances in science, technology, sound studies, and
media studies, underscores the need for scholarship that recognizes the voice
and vocal categories as culturally conditioned material entities.

Trends such
as the metaphorical notion of “having voice”

have to some degree obscured
the material and multisensory aspects of voice. Conceived within the specific
context of musicology and the general context of the humanities, this article
seeks to demonstrate how the re–framing of voice implied by sensory and
material inquiries redraws the topology of voice. I believe that this exercise
may offer a deepened understanding of racial dynamics as they play out in
our interactions with voice.
Climate information for humanitarian agencies: some basic principles
Creators: name: Coughlan De Perez, Erin
name: Mason, Simon J.
Publisher: name: Columbia University
Year: 2014
Subjects: Weather forecasting
Meteorology

description: Since 2005, the International Federation of Red Cross and Red Crescent Societies and the Red Cross Red Crescent Climate Centre have had an ongoing partnership with the International Research Institute for Climate and Society (IRI) to connect end-users with providers of climate information. This partnership has enabled and encouraged the uptake of climate information in the humanitarian sector. From the perspective of the climate service provider, attempts to address problems of salience, credibility and legitimacy have been made by adopting the following set of principles: prioritize immediate user needs; provide only information that is relevant to the user context; provide decision support; right-scale rather than down-scale; and maintain ownership and partnership in design. Examples are presented of how these principles have been applied, highlighting not only the need to improve forecasts and their presentation, but also to address obstacles to the practical use of climate information.
Alterferroicity with seesaw-type magnetoelectricity
Creators: name: Wang, Ziwen
name: Dong, Shuai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Primary ferroicities like ferroelectricity and ferromagnetism are essential physical properties of matter. Multiferroics, with coexisting multiple ferroic orders in a single phase, provide a convenient route to magnetoelectricity. Even so, the general trade-off between magnetism and polarity remains inevitable, which prevents practicable magnetoelectric cross control in the multiferroic framework. Here an alternative strategy, i.e. the so-called alterferroicity, is proposed to circumvent the magnetoelectric exclusiveness, which exhibits multiple but non-coexisting ferroic orders. The natural exclusion between magnetism and polarity, as an insurmountable weakness of multiferroicity, becomes a distinct advantage in alterferroicity, making it an inborn rich ore for intrinsic strong magnetoelectricity. The general design rules for alterferroic materials rely on the competition between the instabilities of phononic and electronic structures in covalent systems. Based on primary density functional theory calculations, Ti-based trichalcogenides are predicted to be alterferroic candidates, which exhibit unique seesaw type magnetoelectricity. This alterferroicity, as an emerging branch of ferroic family, re-shapes the framework of magnetoelectricity, going beyond the established scenario based on multiferroicity.
description: 7 pages, 4 figures
Steady-state entanglement and normal-mode splitting in an atom-assisted optomechanical system with intensity-dependent coupling
Creators: name: Barzanjeh, Sh.
name: Naderi, M. H.
name: Soltanolkotabi, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we study theoretically the bipartite and tripartite continuous variable entanglement as well as the normal-mode splitting in a single-atom cavity optomechanical system with intensity-dependent coupling. The system under consideration is formed by a Fabry-Perot cavity with a thin vibrating end mirror and a two-level atom in the Gaussian standing-wave of the cavity mode. We first derive the general form of Hamiltonian describing the tripartite intensity-dependent atom-field-mirror coupling due to the presence of cavity mode structure. We then restrict our treatment to the first vibrational sideband of the mechanical resonator and derive a novel form of tripartite atom-field-mirror Hamiltonian. We show that when the optical cavity is intensely driven one can generate bipartite entanglement between any pair of the tripartite system, and that, due to entanglement sharing, the atom-mirror entanglement is efficiently generated at the expense of optical-mechanical and optical-atom entanglement. We also find that in such a system, when the Lamb-Dicke parameter is large enough one can simultaneously observe the normal mode splitting into three modes.
Analysis of the shape and texture of breast masses in mammograms
Creators: name: Cabral, Thanh Minh
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 112-124
description: A few pages are in colour.
description: This thesis demonstrates the use of fractal analysis to characterize the shape and gray-level complexity of breast masses for their classification as benign or malignant. The fractal dimension (F D) computed using the ruler method applied to signatures of contours of masses resulted in the area under the receiver operating characteristic curve (AUC) of 0.89. F D with the shape feature of fractional concavity resulted in AUC = 0.93. The blanket method to compute F D related to gray-level variations provided poorer results. The results indicate that fractal analysis is more suitable to characterize the shape than the gray-level variations of breast masses. The effect of pixel size on texture features based on gray-level co-occurrences was also investigated. The texture features computed with the pixel resolution of 200 micrometers provided the highest AUC. The methods presented in this thesis are useful for computer-aided diagnosis of breast cancer.
On stability of a new model of wormhole
Creators: name: Novikov, Igor
name: Shatskiy, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the stability of the wormhole of the Mors-Thorne-Ellis-Bronnikov type. In our model the matter inside it consists of a radial magnetic field and an ideal phantom-fluid. Properties of the matter are described in section 1, 2 and 3 of this paper. We consider spherical perturbations only and find examples of the stable wormholes against these perturbations.
description: 9 pages, 1 figure
Megaprosternum
Creators: name: Gupta, Ankita
name: Rajeshwari, S. K.
name: Azevedo, Celso O.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Bethylidae
Megaprosternum

description: Key to species of Megaprosternum
1. Females.............................................................................................2
- Males...............................................................................................3
 2. Apterous, mesoscutum not divided into scutum and scutellum................................. M. longiceps Azevedo
 - Macropterous, mesoscutum divided into scutum and scutellum.............. M. cleonarovorum Gupta & Azevedo sp. nov.
 3. Hypopygeal stalk narrow, lateral hypopygeal margin almost straight; aedeagus with apical lobes not curved............................................................................... M. cleonarovorum Gupta & Azevedo sp. nov.
- Hypopygeal stalk wide basally, lateral hypopygeal margin distinctly outcurved; aedeagus with apical lobes curved ventrad..4
 4. Head rectangular with sides subparallel; ocelli almost touching one another.............................. M. longiceps
 - Head subquadrate with sides convergent posteriorly; ocelli clearly far from one another............ M. pentagonal Azevedo
description: Published as part of Gupta, Ankita, Rajeshwari, S. K. & Azevedo, Celso O., 2017, Biology and description of Megaprosternum cleonarovorum sp. nov. (Hymenoptera: Bethylidae) a gregarious larval ectoparasitoid of Cleonaria bicolor Thomson (Coleoptera: Cerambycidae) from India in Zootaxa 4237 (1), DOI: 10.11646/zootaxa.4237.1.4, http://zenodo.org/record/322697
Viscous Nonlinear Dynamics of Twist and Writhe
Creators: name: Goldstein, Raymond E.
name: Powers, Thomas R.
name: Wiggins, Chris H.
Publisher: name: Columbia University
Year: 1998
Subjects: Biophysics

description: Exploiting the “natural” frame of space curves, we formulate an intrinsic dynamics of a twisted elastic filament in a viscous fluid. Coupled nonlinear equations describing the temporal evolution of the filament's complex curvature and twist density capture the dynamic interplay of twist and writhe. These equations are used to illustrate a remarkable nonlinear phenomenon: geometric untwisting of open filaments, whereby twisting strains relax through a transient writhing instability without axial rotation. Experimentally observed writhing motions of fibers of the bacterium B. subtilis [N. H. Mendelson et al., J. Bacteriol. 177, 7060 (1995)] may be examples of this untwisting process.
title: Water resources in Spain: the Ebro River interbasin transfer project and the "Programa agua"
title: Hydrology days 2005
titleType: AlternativeTitle
title: AGU hydrology days 2005
titleType: AlternativeTitle
Creators: name: Arranz, Roberto
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2005

description: 2005 annual AGU hydrology days was held at Colorado State University on March 7 - March 9, 2005.
description: Includes bibliographical references.
description: The objective of this paper is to offer a "big picture" of water resources in Spain (including general information about the geography, hydrography, climatology, and hydrology), give a brief description of issues such as water use, legislation, and water institutions, and present the two main alternatives being considered to solve the water scarcity problems existing in the Spanish Mediterranean area: the Ebro River Interbasin Transfer Project, based on the diversion of excess water from the Ebro River Basin to the rest of the Mediterranean basins, and the "Programa Agua," based on the reuse of water, seawater desalination, and institutional reforms. The first alternative was planned and was being constructed by the Popular Party administration, but was abandoned after the political turnover of 2004. Since the presidential elections of March 2004, the new government has proposed the "Programa Agua".
Four loop anomalous dimension of the second moment of the non-singlet twist-2 operator in QCD
Creators: name: Velizhanin, V. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the result of a calculation for the first even moment of the non-singlet four-loop anomalous dimension of Wilson twist-2 operators in QCD with full color and flavor structures.
description: 8 pages, comparison with prediction from Pade approximation (hep-ph/9905310) added
Prior-informed multivariate models for functional magnetic resonance imaging
Creators: name: Ng, Bernard
Publisher: name: University of British Columbia
Year: 2011

description: Neurological diseases constitute the leading disease burden worldwide. Existing symptom-based diagnostic methods are often insufficient to detect many of these diseases in their early stages. Recent advances in neuroimaging technologies have enabled non-invasive examination of the brain, which facilitates localization of disease-induced effects directly at the source. In particular, functional magnetic resonance imaging (fMRI) has become one of the dominant means for studying brain activity in healthy and diseased subjects. However, the low signal-to-noise ratio, the typical small sample size, and the large inter-subject variability present major challenges to fMRI analysis. Standard analysis approaches are largely univariate, which underutilize the available information in the data. In this thesis, we present novel strategies for activation detection, region of interest (ROI) characterization, functional connectivity analysis, and brain decoding that address many of the key challenges in fMRI research. Specifically, we propose: 1) new formulations for incorporating connectivity and group priors to better inform activation detection, 2) the use of invariant spatial features for capturing the often-neglected spatial information in ROI characterization, 3) an evolutionary group-wise approach for dealing with the high inter-subject variability in functional connectivity analysis, and 4) a generalized sparse regularization technique for handling ill-conditioned brain decoding problems. On both synthetic and real data, we showed that exploitation of prior information enables more sensitive activation detection, more refined ROI characterization, more robust functional connectivity analysis, and more accurate brain decoding over the current state-of-the-art. All of our results converged to the conclusion that integrating prior information is beneficial, and oftentimes, essential for tackling the challenges that fMRI research present.
title: Change of microvascular morphology in vascular dementia patients: in vivo vessel size MR imaging
Creators: name: KIM, MINJU
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: Neuroradiology brain
subject: Vascular
subject: MR
subject: Computer Applications-3D
subject: Physics
subject: Dementia
subject: Not applicable

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Hypothesis : Vessel size imaging can show microvascular change in SVD-VaD(Vascular dementia) We investigated the change of microvascular structure in the VaD patients compared to elderly cognitive normal using vessel size imaging to assess this...
Dynamics of semiflexible polymers in a flow field
Creators: name: Munk, Tobias
name: Hallatschek, Oskar
name: Wiggins, Chris H.
name: Frey, Erwin
Publisher: name: Columbia University
Year: 2006
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Bioinformatics
subject: FOS: Computer and information sciences

description: We present a method to investigate the dynamics of a single semiflexible polymer, subject to anisotropic friction in a viscous fluid. In contrast to previous approaches, we do not rely on a discrete bead-rod model, but introduce a suitable normal mode decomposition of a continuous space curve. By means of a perturbation expansion for stiff filaments, we derive a closed set of coupled Langevin equations in mode space for the nonlinear dynamics in two dimensions, taking into account exactly the local constraint of inextensibility. The stochastic differential equations obtained this way are solved numerically, with parameters adjusted to describe the motion of actin filaments. As an example, we show results for the tumbling motion in shear flow.
Parametric four-wave mixing toolbox for superconducting resonators
Creators: name: Sharypov, A. V.
name: Deng, Xiuhao
name: Tian, Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study a superconducting circuit that can act as a toolbox to generate various Bogoliubov-linear and nonlinear quantum operations on the microwave photon modes of superconducting resonators within one single circuit. The quantum operations are generated by exploring dispersive four-wave mixing (FWM) processes involving the resonator modes. Different FWM geometries can be realized by adjusting the circuit parameters and by applying appropriate microwave drivings. We illustrate this scheme using a circuit made of two superconducting qubits that couple with each other. Each qubit couples with one superconducting resonator. We also discuss main quantum errors in this scheme and study the fidelity of the quantum operations by numerical simulation. Our scheme provides a practical approach to realize quantum information protocols on superconducting resonators.
description: 9 pages, 6 figures, accepted version, new simulation and reference added
Closed String Self-energy on the Lightcone Worldsheet Lattice
Creators: name: Papathanasiou, Georgios
name: Thorn, Charles B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the one loop correction to the closed bosonic string propagator, including the possibile presence of D-branes, by discretizing the light cone worldsheet on an M times N rectangular lattice, with M proportional to P^+ and N+1 proportional to ix^+. The integrals over the moduli then become sums which we evaluate numerically. The main purpose of this study is to assess the reliability of the worldsheet lattice as a regulator of the divergences in string perturbation theory. There are two natural geometrical counterterms for the lightcone worldsheet, one proportional to the area of the worldsheet and the other proportional to the length of worldsheet boundaries, tracing the ends of open strings. We show that the divergences in the closed string self-energy can be cancelled by the area counterterm and a renormalization of the Regge slope parameter. The residual finite part is compatible with Lorentz invariance, provided a novel regularization, natural to the lightcone worldsheet lattice and described in this article, is employed.
description: 42 pages, 20 figures, one Mathematica file with summary of numerical analysis. v2: typos corrected, to appear in Phys.Rev.D
Adaptation and validation of the Treatment Burden Questionnaire (TBQ) in English using an internet platform
Creators: name: Tran, Viet-Thi
name: Harrington, Magdalena
name: Montori, Victor
name: Barnes, Caroline
name: Wicks, Paul
name: Ravaud, Philippe
Publisher: name: Columbia University
Year: 2014
Subjects: Quality of life
Therapeutics
Medical sciences

description: Background: Treatment burden refers to the workload imposed by healthcare on patients, and the effect this has on quality of life. The Treatment Burden Questionnaire (TBQ) aims to assess treatment burden in different condition and treatment contexts. Here, we aimed to evaluate the validity and reliability of an English version of the TBQ, a scale that was originally developed in French. Methods: The TBQ was translated into English by a forward-backward translation method. Wording and possible missing items were assessed during a pretest involving 200 patients with chronic conditions. Measurement properties of the instrument were assessed online with a patient network, using the PatientsLikeMe website. Dimensional structure of the questionnaire was assessed by factor analysis. Construct validity was assessed by associating TBQ global score wıth clinical variables, adherence to medication assessed by Morisky’s Medication Adherence Scale (MMAS-8), quality of life (QOL) assessed by the PatientsLikeMe Quality of Life Scale (PLMQOL), and patients’ confidence in their knowledge of their conditions and treatments. Reliability was determined by a test–retest method. Results: In total, 610 patients with chronic conditions, mainly from the USA, UK, Canada, Australia, or New Zealand, completed the TBQ between September and October 2013. The English TBQ showed a unidimensional structure with Cronbach α of 0.90. The TBQ global score was negatively correlated with the PLMQOL score (rs = −0.50; p
Thermodynamic Properties of Poly(trans 1,4-butadiene) Crystals. Relationship to Molecular Structure
Creators: name: Stellman, Jeanne M.
name: Woodward, Arthur E.
name: Stellman, Steven D.
Publisher: name: Columbia University
Year: 1973
Subjects: subject: Microchemistry
subject: Polymers
subject: Mathematics
subject: FOS: Mathematics
subject: Chemistry

description: Heat capacity measurements of melt crystallized poly( trans-1,4-butadiene) (PTBD) were carried out in the 50-130" region and the entropy change from 73" to the melting point, 139", was calculated. A value of the entropy change obtained using the rotational isomeric state approximation is found to underestimate the experimental entropy change. Theoretical energy calculations were carried out using empirical potential energy functions for a single PTBD chain, a unit cell and a lattice of cells. Minimization of the lattice energy with respect to two of the monoclinic cell constants for the low-temperature crystal form gave results in good agreement with X-ray diffraction data. The energy of transition from the low-temperature form was calculated and a theoretical heat capacity curve was obtained.
title: Pancreatic iron and cardiac iron and function in patients with thalassemia intermedia.
Creators: name: Peritore, Giuseppe
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiac
subject: Cardiac
subject: Haematologic
subject: Pancreas
subject: MR
subject: Outcomes analysis
subject: Statistics
subject: FOS: Mathematics
subject: Haematologic diseases
subject: Not applicable
subject: Diagnostic or prognostic study
subject: Multicentre study

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Iron-induced cardiomyopathy is the most common death cause for patients suffering from thalassemic disease, as well as a recurrent finding in multi-transfused patients with acquired anemias. Iron overload-related cardiomyopathy is reversible, but...
title: Bankfull discharge in mountain streams in the Cauca Region of Colombia
title: Hydrology days 2007
titleType: AlternativeTitle
title: AGU hydrology days 2007
titleType: AlternativeTitle
Creators: name: Arbeláez, Ana C.
name: Guevara, María Elvira
name: Posada, Lillian
name: González, Luís Jorge
name: Gallardo, Carlos A.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2007

description: 2007 annual AGU hydrology days was held at Colorado State University on March 19 - March 21, 2007.
description: Includes bibliographical references.
description: A flow considered effective or dominant in the process of stable channel forming, is the bankfull discharge associated to frequency between 1 and 2 years with an average of 1.5 year, according to Dunne and Leopold, 1978. Bankfull discharge or forming discharge is the flow which defines the morphological characteristics of the channel such as bars, meanders and curves. In this article, different approximations for channel forming discharge are explored from the morphological and statistical point of view, in order to establish the frequency of the forming discharge for some rivers in the Andes Region of the Department of Cauca, Colombia.
title: Knee joint X-ray radiography positioning determination using general-purpose products CNN application
Creators: name: Ishibashi, Toru
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Education and training
subject: Computer Applications-General
subject: Neural networks
subject: Conventional radiography
subject: Extremities
subject: Bones
subject: Artificial Intelligence
subject: Image Quality

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: For lateral imaging of the knee joint, knowledge that the joint surfaces of the medial and lateral condyles are consistently drawn assumes diagnostic significance. If the difference between the joint surface of the medial and lateral condyles is...
Antepipona cingulifer
Creators: name: Madl, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Antepipona
Antepipona cingulifer

description: Antepipona cingulifer (W ALKER, 1871)
Antepipona cingulifera (!) (WALKER, 1871): CARPENTER, GUSENLEITNER & MADL 2009: 563 (cat. Afr. reg.).
Antepipona cingulifer (WALKER, 1871): GUSENLEITNER & MADL 2016: 92 (cat. Djibouti).
* Odynerus defractus DU BUYSSON, 1906: BEQUAERT 1918: 296 (tax., cat. Afr. reg.).
* Odynerus parvulus LEPELETIER DE SAINT- FARGEAU, 1841: Walker 1871a: 32 (Tadjoura).
D i s t r i b u t i o n: Tadjoura.
Antepipona cingulifer is known from the Afrotropical (Cameroon, Djibouti, Eritrea, Ethiopia, Ghana, Mali, Niger, Nigeria, Sudan) and Palaearctic (Egypt, Saudi Arabia, Yemen) regions. Walker’s record drom Djibouti was not cited in the scientific literature before BEQUAERT (1918), who mentioned it under Odynerus defractus.
description: Published as part of Madl, Michael, 2018, A preliminary catalogue of the Hymenoptera (Insecta) of the Republic of Djibouti, pp. 907-967 in Linzer biologische Beiträge 50 (2) on page 928, DOI: 10.5281/zenodo.3776452
Phytoliths, palaeoenvironment and human settlement of the northern Ecuadorian Andes
Creators: name: Astudillo, Fernando J.
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 97-109.
description: Some pages are in colour.
description: Ancient agricultural terracing, middle Holocene grassland composition, weather change, and vegetation dynamics in Andean Paramos and montane forest were studied based on quantitative phytolith analysis. Palaeoecological samples from terraces were taken at the archaeological site of Palo Blanco in the highlands of northern Ecuador, which reflect the presence of permanent grass vegetation with changes in its composition. Minor changes in the frequencies of grass vegetation of the Panicoideae subfamily are related to a weather change about 3640 BP. Human impact is observed in the modification of natural slopes creating terraces. The results indicate that the weather variation might be the cause of an early modification of the landscape, perhaps for agriculture.
title: Intraabdominal abscesses (non-visceral). Would MRI be helpful?
Creators: name: Kalimullina, Dina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Inflammation
subject: Abscess
subject: Imaging sequences
subject: MR-Cholangiography
subject: MR
subject: CT
subject: Peritoneum
subject: Emergency
subject: Abdomen
subject: Emergency Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Computed tomography (CT) remains the mainstay of the evaluation of such patients, although protocols have evolved along with technological advancements. Ultrasound (US) has a continued important role, particularly for evaluation of right upper...
Influence of ribose 2′-O-methylation on GpC conformation by classical potential energy calculations
Creators: name: Stellman, Steven D.
name: Broyde, Suse B.
name: Wartell, Roger M.
Publisher: name: Columbia University
Year: 1976
Subjects: subject: Biochemistry
subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences

description: Potential energy calculations were employed to examine the effect of ribose 2′-O-methylation on the conformation of GpC. Minimum energy conformations and allowed conformational regions were calculated for 2′MeGpC and Gp2′MeC. The two lowest energy conformations of 2′MeGpC and Gp2′MeC are similar to those of GpC itself. The helical RNA conformation (sugar pucker-C(3′)-endo, ω′ and ω,g−g−, bases-anti) is the global minimum, and a helix-reversing conformation with ω′, ω in the vicinity of 20°, 80° is next in energy. However, subtle differences between the three molecules are noted. When the substitution is on the 5′ ribose (Gp2′MeC), the energy of the helical conformation is less than that of GpC, due to favorable interactions of the added methyl group. When the substitution is at the 3′ ribose (2′MeGpC) these stabilizing interactions are outweighed by steric restrictions, and the helical conformation is of higher energy than for GpC. Furthermore, the statistical weight of the 2′MeGpC g− g− helical region is substantially less than the corresponding weight for Gp2′MeC. In addition, 2′MeGpC′s methoxy group is conformationally restricted to a narrow range centered at 76°. This group has a broadly allowed region between 50 and 175° in Gp2′MeC. These differences occur because the appended methyl group in 2′MeGpC is located in the interior of the helix cylinder, as it would be in polynucleotide, while it hangs unimpeded in Gp2′MeC. These findings suggest that 2′-O-methylation has both stabilizing and destabilizing influences on the helical conformation of RNA. For 2′MeGpC the destabilizing steric hindrance imposed by the nature of the guanine base dominates.
title: Conference program: AGU hydrology days 2013
title: Hydrology days 2013
titleType: AlternativeTitle
title: AGU hydrology days 2013
titleType: AlternativeTitle
Creators: name: American Geophysical Union, Author
name: Colorado State University, Author
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2013
Subjects: subject: Hydrology -- Congresses

description: Program of 2013 annual AGU hydrology days held at Colorado State University on March 25-March 27, 2013.
Are the Norwegian health research investments in line with the disease burden?
Creators: name: Kinge, Jonas
name: Roxrud, Ingrid
name: Vollset, Stein
name: Skirbekk, Vegard F.
name: Røttingen, John-Arne
Publisher: name: Columbia University
Year: 2014
Subjects: Public health--Research
Public health

description: Background: The relationship between research funding across therapeutic areas and the burden of disease in Norway has not been investigated. Further, few studies have looked at the association between national research investments and the global disease burden. The aim of the present study was to analyze the correlation between a significant part of Norwegian investment in health research and the burden of disease across therapeutic areas, using both Norwegian and global burden of disease estimates. Methods: We used research investment records for 2012 from the Research Council of Norway, and the investment records distributed through liaison committees between regional health authorities and universities. Both were classified by the Health Research Classification System (HRCS). Furthermore, we used the years of life lost and Disability Adjusted Life Years (DALYs) for Norway and globally from the Global Burden of Disease 2010 project. We created a matrix to match the expenditures by HRCS with the values from the Global Burden of Disease project. Results: Disease-specific research funding increased with the Norwegian burden of disease measured as years of life lost (correlation coefficient = 0.73). Similar findings were done when the Norwegian disease burden was measured as DALYs (correlation coefficient = 0.62). The correlation between research funding and the global disease burden was low both when years of life lost (correlation coefficient = 0.11) and DALYs (correlation coefficient = 0.12) were used. Generally, when the disease burden was relatively high in Norway compared with the rest of the world, research investments were also high. Conclusions: Across therapeutic areas, the Norwegian research investments appeared aligned with the Norwegian disease burden. The correlation between the Norwegian research investments and the global disease burden was much lower.
Complex joint probabilities as expressions of determinism in quantum mechanics
Creators: name: Hofmann, Holger F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The density operator of a quantum state can be represented as a complex joint probability of any two observables whose eigenstates have non-zero mutual overlap. Transformations to a new basis set are then expressed in terms of complex conditional probabilities that describe the fundamental relation between precise statements about the three different observables. Since such transformations merely change the representation of the quantum state, these conditional probabilities provide a state-independent definition of the deterministic relation between the outcomes of different quantum measurements. In this paper, it is shown how classical reality emerges as an approximation to the fundamental laws of quantum determinism expressed by complex conditional probabilities. The quantum mechanical origin of phase spaces and trajectories is identified and implications for the interpretation of quantum measurements are considered. It is argued that the transformation laws of quantum determinism provide a fundamental description of the measurement dependence of empirical reality.
description: 12 pages, including 1 figure, updated introduction includes references to the historical background of complex joint probabilities and to related work by Lars M. Johansen
title: The role of the Ki-67 marker in assessing the quantitative degree of malignancy of breast cancer in PET / CT study.
Creators: name: Kavalenka, Tatsiana
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Cancer
subject: Radiation therapy / Oncology
subject: Outcomes analysis
subject: PET-CT
subject: Oncology
subject: Nuclear medicine
subject: Breast

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To evaluate the effect of the Ki-67 marker in breast cancer on the SUV max (a standardized uptake value), its quantitative assessment of the metabolic activity of the tumor process by PET / CT...
title: Prognostic value of multiparametric cardiac magnetic resonance in sickle cell patients.
Creators: name: Peritore, Giuseppe
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiac
subject: Cardiac
subject: Cardiovascular system
subject: Haematologic
subject: MR
subject: Contrast agent-intravenous
subject: Outcomes analysis
subject: Blood
subject: Haematologic diseases
subject: Prospective
subject: Diagnostic or prognostic study
subject: Not applicable

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Despite a significant increase in longevity for sickle cell disease (SCD) patients in the last decades, the mortality rate from cardiovascular and pulmonary complications remains high 1 . Cardiac magnetic resonance (CMR) is the non-invasive gold...
title: Incidental findings in Moscow Lung Cancer Screening trial with ultra-low-dose computer tomography.
Creators: name: Nikolaev, Alexander
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Retrospective
subject: Dilatation
subject: Chronic obstructive airways disease
subject: Aneurysms
subject: Cost-effectiveness
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Thorax
subject: Oncology
subject: Artificial Intelligence
subject: Chest
subject: Case-control study
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Lung cancer is the most common cause of cancer mortality in the world [1]. Moscow Lung Cancer Screening project was launched in Moscow since 2017, aimed at the selective screening of lung cancer in an outpatient population through the use of...
Essays on idiosyncratic stock return volatility and bank lending incentives
Creators: name: Song, Zhongzhi
Publisher: name: University of British Columbia
Year: 2011

description: This dissertation studies two topics in finance. The first topic is on the firm-level stock return volatility. The second one is on lending incentives of banks. Chapter 2 studies idiosyncratic stock return volatility in an investment model with convex capital adjustment costs. The model has two predictions: (1) in the cross-section, idiosyncratic return volatility has a V-shaped relationship with the asset growth rate; (2) in the time series, dispersion across firms in asset growth rates positively predicts average idiosyncratic volatility. Two sources of uncertainty drive the cross-sectional V-shape. Specifically, shocks to expected cash flows cause the high return volatility of high growth firms, while innovations to unexpected cash flows lead to the high return volatility of low (negative) growth firms. The time series prediction follows from the cross-sectional V-shape pattern. I document strong empirical support for the model's predictions of the relationship between the asset growth rate and idiosyncratic return volatility in both the cross-section and time series. Chapter 3 provides explanations to two important questions that arise from the recent financial crisis: (i) Why don't banks keep enough cash to meet potential liquidity shocks and hence avoid fire sales of illiquid assets? (ii) Why do banks keep a large amount of cash on their balance sheet without lending after large capital injections from the government? This chapter examines both questions in a single framework by considering the lending incentives of banks when facing the risk of liquidity shocks. Banks make decisions based on the tradeoff between costs (fire sales of illiquid assets) and benefits (high returns from bank loans) of lending. This chapter shows that it may be optimal for banks to lend out cash and incur fire sales of assets under liquidity shocks, even if banks are endowed with enough cash to meet liquidity shocks. That is, fire sales of assets could be an endogenous outcome of banks' optimal decisions. At the same time, banks may still keep a large amount of cash after government capital injections to save the cost of fire sales, especially when banks are endowed with a large fraction of illiquid assets. Based on the results from the model, this study also provides policy implications for government intervention.