cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cardiac Outcomes in Women with Rheumatic Heart Disease during Childbearing Years
Creators: name: Shaikh, Bushra
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Pregnancy
subject: Rheumatic Heart Disease
subject: Women's Health

description: Objective: The objective of our scoping review is to examine and map all published studies evaluating the impact of pregnancy on cardiac function, over time, in women known to have Rheumatic Heart Disease (RHD) aged between 16 and 51 years of age. Introduction: RHD is a complex valvular heart condition which is an end-stage consequence of acute, repeated episodes of acute rheumatic fever. RHD disproportionally burdens Aboriginal and Torres Strait Islander communities within Australia and New Zealand, with the majority (61%) being female. Acute cardiac complications in pregnancy arising from RHD, often undiagnosed or undertreated until this point, are well described. However, there is limited data investigating the impact that pregnancy itself has on cardiac function in women with RHD, and how, if at all, this may affect cardiac function overtime. Inclusion criteria: All women of childbearing age defined between 16 and 55 years of age with a confirmed diagnosis of RHD. The exposure group is defined as women with an ongoing pregnancy of 20 weeks or more. Women outside the defined age range and those who have delivered outside the period of the study are not include. The searches were limited to English language articles conducted within any geographic setting with no limits on time of publication. Study types included RCTs, non-RCTs, prospective and retrospective studies within any population. Measured outcomes include any cardiac events, abnormalities or specific abnormal investigation findings as primary or secondary outcomes Methods: A scoping review framework will be used. Eligible studies will be extracted from Medline(OVID), CINAHL, Emcare (OVID and the Cochrane Library and a grey literature search will subsequently be performed. Preliminary extraction of relevant articles including elimination of duplicates, exclusion by title and detailed revision of extracted articles will be conducted using Covidence by two independent reviewers.
Childhood traumatic infarction causing left ventricular aneurysm: Diagnosis by two-dimensional echocardiography
Creators: name: Henry, G. William
name: Long, Walker
name: Willis, Park
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: After being struck by an automobile, a 9 year old boy developed transient right bundle branch block followed by electrocardiographic changes of inferior wall myocardial infarction and an increase of serum cardiac enzymes. Two-dimensional echocardiography demonstrated a prominent septal aneurysm. Subsequent cardiac catheterization confirmed septal aneurysm and demon- strated an additional inferior aneurysm. Six weeks after the accident, resection of the inferior aneurysm was performed. At 1 year follow-up study, residual septal aneurysm and cardiomegaly are present, but the boy is asymptomatic.
Lack of specificity of new negative U waves for anterior myocardial ischemia as evidenced by intracoronary electrogram during balloon angioplasty
Creators: name: Gettes, Leonard
name: Jain, Avanindra
name: Jenkins, Mark
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1990

description: Negative U waves on the surface electrocardiogram are reported to be a specific marker of myocardial disease. In the setting of ischemia, they correlate with stenosis of the left main and left anterior descending coronary arteries. To determine whether U wave changes are unique for anterior ischemia, the development of new U waves on the intracoronary electrogram was correlated with the location and magnitude of ischemia during coronary balloon angioplasty. Recordings were obtained during dilation of 43 vessels in 37 patients. New negative U waves developed during dilation of 12 vessels (7 of the left anterior descending, 4 of the left circumflex and 1 of the right coronary artery). New positive U waves developed during dilation of 18 vessels (12 of the left anterior descending, 3 of the left circumflex and 3 of the right coronary artery). The magnitude of ST segment change was 10.9 +/- 6.7 mm in the presence of a new U wave but only 3.4 +/- 2.8 mm in the absence of a new U wave (p less than 0.001). It is concluded that 1) negative U waves on the intracoronary electrogram are not specific for anterior ischemia; 2) new positive U waves on the intracoronary electrogram are as sensitive as new negative U waves for acute ischemia; 3) the development of a new positive or negative U wave is associated with the magnitude of myocardial ischemia; and 4) the recording of U waves may be related to the proximity of the recording leads to the location of ischemia.
Color-Magnitude Diagram Constraints on the Metallicities, Ages, and Star Formation History of the Stellar Populations in the Carina Dwarf Spheroidal Galaxy
Creators: name: VandenBerg, Don A.
name: Stetson, Peter B.
name: Brown, Thomas M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Victoria-Regina isochrones for $-0.4 \le$ [alpha/Fe] $\le +0.4$ and a wide range in [Fe/H], along with complementary zero-age horizontal branch (ZAHB) loci, have been applied to the color-magnitude diagram (CMD) of Carina. The color transformations that we have used have been "calibrated" so that isochrones provide excellent fits to the $[(B-V)_0,\,M_V]$-diagrams of M3 and M92, when well supported estimates of the globular cluster (GC) reddenings and metallicities are assumed. The adopted distance moduli, for both the GCs and Carina, are based on our ZAHB models, which are able to reproduce the old HB component (as well as the luminosity of the HB clump) of the dwarf spheroidal galaxy quite well --- even if it spans a range in [Fe/H] of ~ 1.5 dex, provided that [alpha/Fe] varies with [Fe/H] in approximately the way that has been derived spectroscopically. Ages derived here agree reasonably well with those found previously for the old and intermediate-age turnoff stars, as well as for the period of negligible star formation (SF) activity (~ 6-10 Gyr ago). CMD simulations have been carried out for the faintest turnoff and subgiant stars. They indicate a clear preference for SF that lasted several Gyr instead of a short burst, with some indication that ages decrease with increasing [Fe/H]. In general, stellar models that assume spectroscopic metallicities provide satisfactory fits to the observations, including the thin giant branch of Carina, though higher oxygen abundances than those implied by the adopted values of [alpha/Fe] would have favorable consequences.
description: 15 pages, including 12 figures; accepted for publication in the Astrophysical Journal
(102443) Richard Harrap
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Identification of false positive exercise tests with use of electrocardiographic criteria: A possible role for atrial repolarization waves
Creators: name: McCarthy, James
name: Sapin, Peter
name: Gettes, Leonard
name: Blauwet, Mary Beth
name: Hinds, Spencer
name: Koch, Gary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: Atrial repolarization waves are opposite in direction to P waves, may have a magnitude of 100 to 200 mu V and may extend into the ST segment and T wave. It was postulated that exaggerated atrial repolarization waves during exercise could produce ST segment depression mimicking myocardial ischemia. The P waves, PR segments and ST segments were studied in leads II, III, aVF and V4 to V6 in 69 patients whose exercise electrocardiogram (ECG) suggested ischemia (100 mu V horizontal or 150 mu V upsloping ST depression 80 ms after the J point). All had a normal ECG at rest. The exercise test in 25 patients (52% male, mean age 53 years) was deemed false positive because of normal coronary arteriograms and left ventricular function (5 patients) or normal stress single photon emission computed tomographic thallium or gated blood pool scans (16 patients), or both (4 patients). Forty-four patients with a similar age and gender distribution, anginal chest pain and at least one coronary stenosis greater than or equal to 80% served as a true positive control group. The false positive group was characterized by (1) markedly downsloping PR segments at peak exercise, (2) longer exercise time and more rapidmore » peak exercise heart rate than those of the true positive group, and (3) absence of exercise-induced chest pain. The false positive group also displayed significantly greater absolute P wave amplitudes at peak exercise and greater augmentation of P wave amplitude by exercise in all six ECG leads than were observed in the true positive group.« less
(102448) Leslie Spencer Compton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Canonical Quantization of Constants of Motion
Creators: name: Belmonte, Fabian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We develop a quantization method, that we name decomposable Weyl quantization, which ensures that the constants of motion of a prescribed finite set of Hamiltonians are preserved by the quantization. Our method is based on a structural analogy between the notions of reduction of the classical phase space and diagonalization of selfadjoint operators. We obtain the spectral decomposition of the emerging quantum constants of motion directly from the quantization process. If a specific quantization is given, we expect that it preserves constants of motion exactly when it coincides with decomposable Weyl quantization on the algebra of constants of motion. We obtain a characterization of when such property holds in terms of the Wigner transforms involved. We also explain how our construction can be applied to spectral theory. Moreover, we discuss how our method opens up new perspectives in formal deformation quantization and geometric quantization.
Influence of calcium administration on the short-term hemodynamic and anti-ischemic effects of nifedipine
Creators: name: Dunlap, Stephanie
name: Wohns, David
name: Patterson, J.Herbert
name: Clarke, Susan
name: Blauwet, Mary Beth
name: Adams, Kirkwood
name: Koch, Gary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: This prospective study investigated whether pretreatment with intravenously administered calcium would influence the effect of nifedipine on rest hemodynamics and treadmill performance in patients with ischemic heart disease. Seventeen patients were studied after undergoing a qualifying treadmill exercise test that revealed ST segment depression indicative of ischemic heart disease. Study subjects performed three additional treadmill tests as part of the protocol. One treadmill test was obtained from each patient to provide baseline measurements without a preceding intravenous infusion and in the absence of all antianginal drugs including nifedipine two additional exercise tests were preceded by an infusion and 10 mg of bite-and-swallow nifedipine. The infusions, administered in a randomized, double-blind, crossover fashion, consisted of either 10 ml of 10% calcium chloride (13.6 mEq) in 50 ml of 5% dextrose in water or 5% dextrose in water alone. Rest systolic blood pressure (134 +/- 4.6 mm Hg) was unchanged after placebo infusion (135 +/- 4.6 mm Hg) but decreased to 124 +/- 4.1 mm Hg (p less than 0.01) 25 min after nifedipine administration. Rest systolic blood pressure increased after calcium infusion (from 139 +/- 4.3 to 148 +/- 4.8 mm Hg, p less than 0.01) and then decreased significantly 25 min after nifedipine administration to 135 +/- 4.2 mm Hg (p less than 0.01). Despite a decrease at the time of peak nifedipine effect after either infusion, systolic blood pressure was significantly lower after administration of nifedipine alone than after administration of calcium and nifedipine (124 +/- 4.1 vs. 135 +/- 4.2 mm Hg, p less than 0.01).
(102438) Freda Thomas
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Making Thermodynamic Models of Mixtures Predictive by Machine Learning: Matrix Completion of Pair Interactions
Creators: name: Jirasek, Fabian
name: Bamler, Robert
name: Fellenz, Sophie
name: Bortz, Michael
name: Kloft, Marius
name: Mandt, Stephan
name: Hasse, Hans
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Predictive models of thermodynamic properties of mixtures are paramount in chemical engineering and chemistry. Classical thermodynamic models are successful in generalizing over (continuous) conditions like temperature and concentration. On the other hand, matrix completion methods (MCMs) from machine learning successfully generalize over (discrete) binary systems; these MCMs can make predictions without any data for a given binary system by implicitly learning commonalities across systems. In the present work, we combine the strengths of both worlds in a hybrid approach. The underlying idea is to predict the pair-interaction energies, as they are used in basically all physical models of liquid mixtures, by an MCM. As an example, we embed an MCM into UNIQUAC, a widely-used physical model for the Gibbs excess energy. We train the resulting hybrid model in a Bayesian machine-learning framework on experimental data for activity coefficients in binary systems of 1146 components from the Dortmund Data Bank. We thereby obtain, for the first time, a complete set of UNIQUAC parameters for all binary systems of these components, which allows us to predict, in principle, activity coefficients at arbitrary temperature and composition for any combination of these components, not only for binary but also for multicomponent systems. The hybrid model even outperforms the best available physical model for predicting activity coefficients, the modified UNIFAC (Dortmund) model.
description: Published version
Development of an Electronic Medical Image Archiving System for Health Care in Nigeria
Creators: name: Olaniyi, Mikail
name: Omotosho, Adebayo
name: Robert, Jane
name: Oke, Alice
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Medical images require immediate access by several physicians in different places within a medical facility and access to a critically injured persons medical image, such as the x-ray, on time can be a key factor in the diagnosis and treatment of the patient. The electronic medical image archive system can help to solve the problem faced in previous physical medium archiving, thus increasing productivity and time which patients are attended to. In this paper, simple but functional electronic medical image archive architecture was proposed and implemented. The system was further evaluated in a hospital setting by medical experts using sample patient image data. Results of the system evaluation shows that electronic medical image archiving systems can actually promote efficiency, quality improvement, provide timely availability of radiologic images, image consultation, and image interpretation in emergent and no emergent clinical care areas among other benefits
Effects of a telehealth-delivered Mediterranean diet intervention in adults with Rheumatoid Arthritis (MEDRA): a randomised controlled trial
Creators: name: Raad, Tala
name: George, Elena
name: Griffin, A
name: Larkin, L
name: Fraser, A
name: Kennedy, N
name: Tierney, Audrey
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems
classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 4206
subject: Public health
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 4201
subject: Allied health and rehabilitation science

description: Objective: To compare the effects a Mediterranean diet (MedDiet) versus the Irish Healthy Eating Guidelines (HEG) on physical function and quality of life in adults with rheumatoid arthritis (RA) in Ireland. Methods: Forty-four adults with RA were randomised (1:1) to the MedDiet or HEG for 12 weeks. The intervention included three video teleconsultations and two follow-up telephone calls facilitated by a Registered Dietitian (RD). Changes in physical function by Health Assessment Questionnaire- Disability Index (HAQ-DI) and quality of life by Rheumatoid Arthritis Quality of Life Questionnaire (RAQoL) were the primary outcomes measured. Secondary outcomes included changes in dietary adherence, physical activity by Yale Physical Activity survey (YPAS), patient-perceived pain and general health, and anthropometric measures. All measurements were administered at baseline and repeated at 6 and 12 weeks. Results: Forty participants completed the study. Participants were primarily females (87.5%), mean age was 47.5 ± 10.9 years. At the end of the intervention, participants in the MedDiet group reported significantly better physical function (p = 0.006) and quality of life (p = 0.037) compared to HEG group. From baseline to 12 weeks, physical function significantly improved in both diet groups, MedDiet (0.9 ± 0.5 to 0.5 ± 0.4 units, p < 0.001) and HEG (1.4 ± 0.7 to 1.0 ± 0.6 units, p < 0.001). Quality of life also significantly improved in the MedDiet (10.1 ± 7.5 to 4.0 ± 4.7 units, p < 0.001) and HEG group (11.25 ± 7.2 to 7.9 ± 6.4 units, p = 0.048). Physical activity improved significantly in the MedDiet (56.7 ± 28.6 to 70.6 ± 33.5 points, p = 0.01) but not within the HEG group despite similar recommendations. Conclusion: Adhering to the MedDiet and Irish Healthy Eating Guidelines resulted in improvements in RA patient-reported outcomes. The changes observed in both diet groups are likely due to the improvement in overall diet quality irrespective of dietary prescription.
(102432) Ada Elizabeth Ward
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Comparative neurohormonal responses in patients with preserved and impaired left ventricular ejection fraction: Results of the studies of left ventricular dysfunctions (SOLVD) registry
Creators: name: Weiner, Debra
name: Ghali, Jalal
name: Greenberg, Barry
name: Bourassa, Martial
name: Nicklas, John
name: Yusuf, Salim
name: Benedict, Claude
name: Kirlin, Philip
name: Quinones, Miguel
name: Johnstone, David
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: OBJECTIVES: The aim of this study was to determine the differences in neurohumoral responses between patients with pulmonary congestion with and without impaired left ventricular ejection fraction. BACKGROUND: Previous studies have established the presence of neurohumoral activation in patients with congestive heart failure. It is not known whether the activation of these neurohumoral mechanisms is related to the impairment in systolic contractility. METHODS: The 898 patients recruited into the Studies of Left Ventricular Dysfunction (SOLVD) Registry substudy were examined to identify those patients with pulmonary congestion on chest X-ray film who had either impaired (< or = 45%, group I) or preserved (> 45%, group II) left ventricular ejection fraction. Plasma norepinephrine, plasma renin activity, arginine vasopressin and atrial natriuretic peptide levels were measured in these two groups of patients and compared with values in matched control subjects. RESULTS: Distribution of the New York Heart Association symptom classification was the same in the two groups of patients. Compared with control subjects, patients in group II with pulmonary congestion and preserved ejection fraction had no activation of the neurohumoral mechanisms, except for a small but statistically significant increase in arginine vasopressin and plasma renin activity. Compared with patients in group II, those in group I with pulmonary congestion and impaired ejection fraction had significant increases in plasma norepinephrine (p < 0.002), plasma renin activity (p < 0.02) and atrial natriuretic peptide levels (p < 0.0007). When we controlled for baseline differences between groups I and II, the between-group differences in plasma norepinephrine (p < 0.02) and atrial natriuretic peptide (p < 0.002) remained significant. However, plasma renin activity was not significantly different between groups I and II. When the effects of diuretic agents and angiotensin-converting enzyme inhibitors were adjusted, patients with lower ejection fraction were found to have significantly higher plasma norepinephrine and atrial natriuretic peptide levels. CONCLUSIONS: The results point to the importance of the decrease in left ventricular ejection fraction as one of the mechanisms for activation of neurohormones in patients with heart failure.
Implications of the observation of dark matter self-interactions for singlet scalar dark matter
Creators: name: Campbell, Robyn
name: Godfrey, Stephen
name: Logan, Heather E.
name: Peterson, Andrea D.
name: Poulin, Alexandre
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Evidence for dark matter self-interactions has recently been reported based on the observation of a spatial offset between the dark matter halo and the stars in a galaxy in the cluster Abell 3827. Interpreting the offset as due to dark matter self-interactions leads to a cross section measurement of sigma_DM/m ~ (1-1.5) cm^2/g, where m is the mass of the dark matter particle. We use this observation to constrain singlet scalar dark matter coupled to the Standard Model and to two-Higgs-doublet models. We show that the most natural scenario in this class of models is very light dark matter, below about 0.1 GeV, whose relic abundance is set by freeze-in, i.e., by slow production of dark matter in the early universe via extremely tiny interactions with the Higgs boson, never reaching thermal equilibrium. We also show that the dark matter abundance can be established through the usual thermal freeze-out mechanism in the singlet scalar extension of the Yukawa-aligned two-Higgs-doublet model, but that it requires rather severe fine tuning of the singlet scalar mass.
description: 9 pages, 3 figures. V4: We included the Higgs width in equation and modified the paragraph following eqn 11 to reflect this change. This modification had no effect on our subsequent conclusions. The revised paper subsumes the erratum submitted to the journal
Analytic Smoothing and Nekhoroshev estimates for Hölder steep Hamiltonians
Creators: name: Barbieri, Santiago
name: Marco, Jean-Pierre
name: Massetti, Jessica Elisa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this paper we prove the first result of Nekhoroshev stability for steep Hamiltonians in Hölder class. Our new approach combines the classical theory of normal forms in analytic category with an improved smoothing procedure to approximate an Hölder Hamiltonian with an analytic one. It is only for the sake of clarity that we consider the (difficult) case of Hölder perturbations of an analytic integrable Hamiltonian, but our method is flexible enough to work in many other functional classes, including the Gevrey one. The stability exponents can be taken to be $(\ell-1)/(2n{\mathbfα}_1...{\mathbfα}_{n-2})+1/2$ for the time of stability and $1/(2n{\mathbfα}_1...{\mathbfα}_{n-1})$ for the radius of stability, $n$ being the dimension, $\ell >n+1$ being the regularity and the ${\mathbfα}_i$'s being the indices of steepness. Crucial to obtain the exponents above is a new non-standard estimate on the Fourier norm of the smoothed function. As a byproduct we improve the stability exponents in the $C^k$ class, with integer $k$.
(102434) Norah Ethel Ward
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Partial Reflection and Trapping of a Fast-mode Wave in Solar Coronal Arcade Loops
Creators: name: Kumar, Pankaj
name: Innes, D. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on the first direct observation of a fast-mode wave propagating along and perpendicular to cool (171 Å) arcade loops observed by the SDO/AIA. The wave was associated with an impulsive/compact flare, near the edge of a sunspot. The EUV wavefront expanded radially outward from the flare center and decelerated in the corona from 1060-760 km/s within ~3-4 minute. Part of the EUV wave propagated along a large-scale arcade of cool loops and was partially reflected back to the flare site. The phase speed of the wave was about 1450 km/s, which is interpreted as a fast-mode wave. A second overlying loop arcade, orientated perpendicular to the cool arcade, is heated and becomes visible in the AIA hot channels. These hot loops sway in time with the EUV wave, as it propagated to and fro along the lower loop arcade. We suggest that an impulsive energy release at one of the footpoints of the arcade loops causes the onset of an EUV shock wave that propagates along and perpendicular to the magnetic field.
description: ApJ letters (in press), 8 pages, 5 figures
(102436) James Thresher Harrap
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
BOLALAR MUSIQA VA SAN'AT MAKTABLARI TA'LIM JARAYONIGA ZAMONAVIY PEDAGOGIK TEXNOLOGIYALARNI TADBIQ ETISH
Creators: name: Sobirova, Gulxayo
name: G'ofurbekov, T.B.
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada o’qitishning zamonaviy usullaridan foydalanish orqali ta’lim samaradorligiga erishish yo’llari haqida so’z yuritilib, bolalar musiqa va san’at maktablarida musiqiy-tarixiy va nazariy fanlarni o’qitishda natijadorlikni yuqori ko’rsatkichlarini qayd etishga qartilgan zamonaviy pedagogic texnologiyalar turlari va ularning xususiyatlari bayon etilgan.
D5.5 Policy Report 1
Creators: name: Milada, Šťastná
Publisher: name: Zenodo
Year: 2022
Subjects: SPOT
Cultural Tourism
Policy Brief
Europeanisation
Policy Implications and Recommendations
SPOT-IT

description: This document is created as deliverable D5.5 Policy Report 1. It contains a series of Policy Briefs that present
 the main findings and practical outcomes of the EU-funded research project SPOT (for the years 2020-2022).
 The document aims to inform all stakeholder groups involved in the development of cultural tourism
 in Europe about what was implemented during the transnational study (in which 15 countries are involved)
 in the SPOT project. At the same time, several policy-related recommendations are shared. The individual
 Policy Briefs include also other results that could be useful in the stakeholder profession.
(102439) Florence Ann [Ward]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Natural history and patterns of current practice in heart failure
Creators: name: Yusuf, Salim
name: Bourassa, Martial
name: Bangdiwala, Shrikant
name: Rousseau, Michel
name: Gurné, Olivier
name: Young, James
name: Ghali, Jalal
name: Johnstone, David
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: A total of 6,273 consecutive relatively unselected patients with heart failure or left ventricular dysfunction, or both (mean age 62 ± 12 years, mean ejection fraction 31 ± 9%), were enrolled in the Studies of Left Ventricular Dysfunction (SOLVD) Registry over a period of 14 months. All patients were followed up for vital status and hospital admissions at 1 year. Ischemic heart disease was the underlying cause of failure or dysfunction in ≈70% of patients, whereas hypertensive heart disease was considered to be primarily involved in only 7%. There were striking differences in the etiology of heart failure among blacks and whites: 73% of whites had an ischemic etiology of failure versus only 36% of blacks; 32% of blacks had a hypertensive condition versus only 4% of whites. The total 1-year mortality rate was 18%; 19% of patients had hospital admissions for heart failure and 27% either died or had a hospital admission for congestive heart failure during the 1st year of follow-up. Factors related to 1-year mortality or hospital admission for congestive heart failure included age, ejection fraction, diabetes mellitus, atrial fibrillation and female gender. There was no difference in mortality associated with congestive heart failure among blacks and whites, but hospital admissions for heart failure were more frequent in blacks. Digitalis and diuretic agents were the drugs most often used in these patients, who were often making many medications in relation to severity of congestive heart failure symptoms and ejection fraction. Surprisingly, angiotensin-converting enzyme inhibitors were taken by only 30% of patients, and a substantial number were treated by drugs controversial in the presence of left ventricular dysfunction and heart failure, such as calcium channel antagonists and antiarrhythmic or beta-adrenergic blocking agents.
Online Meta-Learning for Model Update Aggregation in Federated Learning for Click-Through Rate Prediction
Creators: name: Liu, Xianghang
name: Twardowski, Bartłomiej
name: Wijaya, Tri Kurniawan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In Federated Learning (FL) of click-through rate (CTR) prediction, users' data is not shared for privacy protection. The learning is performed by training locally on client devices and communicating only model changes to the server. There are two main challenges: (i) the client heterogeneity, making FL algorithms that use the weighted averaging to aggregate model updates from the clients have slow progress and unsatisfactory learning results; and (ii) the difficulty of tuning the server learning rate with trial-and-error methodology due to the big computation time and resources needed for each experiment. To address these challenges, we propose a simple online meta-learning method to learn a strategy of aggregating the model updates, which adaptively weighs the importance of the clients based on their attributes and adjust the step sizes of the update. We perform extensive evaluations on public datasets. Our method significantly outperforms the state-of-the-art in both the speed of convergence and the quality of the final learning results.
Quality of life among 5,025 patients with left ventricular dysfunction randomized between placebo and enalapril: The studies of left ventricular dysfunction
Creators: name: Weiner, Debra
name: Yusuf, Salim
name: Ahn, Sylvie
name: Rogers, William
name: Schron, Eleanor
name: Gallagher, Philip
name: Bittner, Vera
name: Johnstone, David
name: Sheffield, L. Thomas
name: Shumaker, Sally
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: OBJECTIVES: This study was performed to assess the quality of life of patients with left ventricular dysfunction for up to 2 years after randomization to enalapril or placebo. BACKGROUND: Previous reports have documented that survival of patients with congestive heart failure can be extended by the angiotensin-converting enzyme inhibitor enalapril. However, it is unknown whether enalapril has a long-term favorable impact on the quality of life in patients with heart failure. METHODS: A brief quality of life questionnaire assessing the quality of life was administered at baseline and at 6 weeks, 1 year and 2 years of follow-up to patients randomized to placebo or enalapril in the Studies of Left Ventricular Dysfunction (SOLVD). Participants had an ejection fraction < or = 0.35, no other serious illnesses and either symptomatic heart failure (treatment trial, n = 2,465) or asymptomatic left ventricular dysfunction (prevention trial, n = 2,560). RESULTS: Among the 14 scales of quality of life, better scores at one or more follow-up intervals were noted in 6 scales in the treatment trial and in 1 scale in the prevention trial among patients assigned to enalapril. Consistent superiority with enalapril at two consecutive follow-up intervals was noted in the treatment trial for social functioning and dyspnea but for no scale in the prevention trial. However, an average of 40% of quality of life responses were missing at 2 years of follow-up because of death or failure to complete the questionnaire. In the treatment trial, survivors with more severe heart failure were less likely to complete the questionnaire. CONCLUSIONS: Modest benefits in quality of life for > or = 1 year occurred when patients with left ventricular dysfunction and symptomatic heart failure were treated with enalapril. No apparent beneficial or adverse effect on quality of life was observed with enalapril in asymptomatic patients with left ventricular dysfunction.
Opportunities And Challenges In Publishing And Promoting Scientific Journals In Bulgaria
Creators: name: Dimitrov, Kiril
Publisher: name: figshare
Year: 2023
Subjects: Leadership
Organisation and management theory
Organisational behaviour
Stakeholder engagement
Strategy
Human resources management

description: Presentation of scientific papers is associated with the creation of new scientific journals and the maintenance of established periodicals. This paper discusses and analyzes two challenges to publishing scientific journals in Bulgaria –first, securing a pool of suitable reviewers and second –maintaining good relations with potential authors. The paper proposes views based on exponential thinking that would lead to profound, positive changes based on the use of new technologies in scientific journal publishing. In practice, they are inextricably linked to the implementation of social innovations, resulting from the establishment of a new balance among stakeholders at different levels of realization of management. The paper attempts to assist lecturers and researchers in their professional pursuits.
Lip-to-Speech Synthesis for Arbitrary Speakers in the Wild
Creators: name: Hegde, Sindhu B
name: Prajwal, K R
name: Mukhopadhyay, Rudrabha
name: Namboodiri, Vinay P
name: Jawahar, C. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computation and Language (cs.CL)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, we address the problem of generating speech from silent lip videos for any speaker in the wild. In stark contrast to previous works, our method (i) is not restricted to a fixed number of speakers, (ii) does not explicitly impose constraints on the domain or the vocabulary and (iii) deals with videos that are recorded in the wild as opposed to within laboratory settings. The task presents a host of challenges, with the key one being that many features of the desired target speech, like voice, pitch and linguistic content, cannot be entirely inferred from the silent face video. In order to handle these stochastic variations, we propose a new VAE-GAN architecture that learns to associate the lip and speech sequences amidst the variations. With the help of multiple powerful discriminators that guide the training process, our generator learns to synthesize speech sequences in any voice for the lip movements of any person. Extensive experiments on multiple datasets show that we outperform all baselines by a large margin. Further, our network can be fine-tuned on videos of specific identities to achieve a performance comparable to single-speaker models that are trained on $4\times$ more data. We conduct numerous ablation studies to analyze the effect of different modules of our architecture. We also provide a demo video that demonstrates several qualitative results along with the code and trained models on our website: \url{http://cvit.iiit.ac.in/research/projects/cvit-projects/lip-to-speech-synthesis}}
description: Accepted in ACM-MM 2022, 9 pages, 2 pages supplementary, 7 Figures
Decomposition rank of approximately subhomogeneous C*-algebras
Creators: name: Elliott, George A.
name: Niu, Zhuang
name: Santiago, Luis
name: Tikuisis, Aaron
Publisher: name: arXiv
Year: 2015
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L35, 46L05, 46L06, 46L85

description: It is shown that every Jiang-Su stable approximately subhomogeneous C*-algebra has finite decomposition rank. Previously, it was not even known that such algebras have finite nuclear dimension. A key step in the proof is that subhomogeneous C*-algebra are locally approximated by a certain class of more tractable subhomogeneous algebras, namely, a non-commutative generalization of the class of cell complexes. The result is applied to show that Jiang-Su stable minimal Z-crossed products have finite decomposition rank.
description: 86 pages. Fairly minor changes. To appear in Forum Math
(102433) John Lewis William Ward
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Properties and device performance of BN thin films grown on GaN by pulsed laser deposition
Creators: name: Biswas, Abhijit
name: Xu, Mingfei
name: Fu, Kai
name: Zhou, Jingan
name: Xu, Rui
name: Puthirath, Anand B.
name: Hachtel, Jordan A.
name: Li, Chenxi
name: Iyengar, Sathvik Ajay
name: Kannan, Harikishan
name: Zhang, Xiang
name: Gray, Tia
name: Vajtai, Robert
name: Birdwell, A. Glen
name: Neupane, Mahesh R.
name: Ruzmetov, Dmitry A.
name: Shah, Pankaj B.
name: Ivanov, Tony
name: Zhu, Hanyu
name: Zhao, Yuji
name: Ajayan, Pulickel M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Wide and ultrawide-bandgap semiconductors lie at the heart of next-generation high-power, high-frequency electronics. Here, we report the growth of ultrawide-bandgap boron nitride (BN) thin films on wide-bandgap gallium nitride (GaN) by pulsed laser deposition. Comprehensive spectroscopic (core level and valence band XPS, FTIR, Raman) and microscopic (AFM and STEM) characterizations confirm the growth of BN thin films on GaN. Optically, we observed that BN/GaN heterostructure is second-harmonic generation active. Moreover, we fabricated the BN/GaN heterostructure-based Schottky diode that demonstrates rectifying characteristics, lower turn-on voltage, and an improved breakdown capability (234 V) as compared to GaN (168 V), owing to the higher breakdown electrical field of BN. Our approach is an early step towards bridging the gap between wide and ultrawide-bandgap materials for potential optoelectronics as well as next-generation high-power electronics.
description: 5 Figures, Published in Applied Physics Letters
PHENOMICS-DATA DRIVEN TOOLS FOR MACHINE LEARNING-ASSISTED DECISION SUPPORT IN AGRICULTURE
Creators: name: Marzougui, Afef
Publisher: name: Washington State University
Year: 2022

description: The advancements in sensor technologies – in omics research in agriculture – have increased the amount of generated data. One example of omics data is phenomics, the science of measuring phenotypes (i.e., crop and animal phenotype). Phenomics data are widely used in crop improvement research, precision crop, and livestock farming, allowing rapid, objective, and accurate measurement of phenotypes. In this dissertation, phenomics-data-driven tools were explored and developed to improve and optimize decision support in diverse agricultural applications.Aphanomyces root rot (ARR) disease resistance is an important trait to evaluate in pulse crops. Two image-based disease severity classification approaches were assessed to distinguish between three classes of ARR severity: resistant, intermediate, and susceptible, using Red-Green-Blue images of lentil roots. One approach was through hand-crafted features extracted from the images that were used as an input dataset for a generalized linear model with elastic net regularization. The second approach entailed building a convolutional neural network as an end-to-end feature learning and classification approach. The resistant class was accurately classified with both methods, with an accuracy of 0.92-0.96, while the former approach performed better for the other two classes. In another study, the scalability of field-based remote sensing using high-resolution satellite imagery and the synergy with unmanned aerial systems (UAS) sensing were evaluated to estimate the yield of field pea at the breeding plot level. The assessment was performed using feature fusion (satellite and UAS data) and image fusion (pan-sharpening of satellite data using UAS data). We found that the performance of satellite-imagery data-based random forest models was comparable to UAS-imagery data-based models at a later growth stage (after canopy closure). In the final study, health summary measures were developed to inform dairy cattle’s health status and disease severity. An approach to derive these metrics – objectively and using pathophysiological data – was established to evaluate four common diseases (ketosis, hypocalcemia, metritis, mastitis) in dairy cattle. The approach was found to show potential application in indicating health status based on comparisons with disability weight class indicators reported in the literature.