bluuebunny/crossref_metadata_2025_split huggingface dataset:
A CMB Millikan experiment with cosmic axiverse strings
Authors: Agrawal Prateek , Hook Anson , Huang Junwu 
Published: July 2020

Abstract
We study axion strings of hyperlight axions coupled to photons. Hyperlight axions — axions lighter than Hubble at recombination — are a generic prediction of the string axiverse. These axions strings produce a distinct quantized polarization rotation of CMB photons which is $$ \mathcal{O} $$
O
(αem). As the CMB light passes many strings, this polarization rotation converts E-modes to B-modes and adds up like a random walk. Using numerical simulations we show that the expected size of the final result is well within the reach of current and future CMB experiments through the measurement of correlations of CMB B-modes with E- and T-modes. The quantized polarization rotation angle is topological in nature and can be seen as a geometric phase. Its value depends only on the anomaly coefficient and is independent of other details such as the axion decay constant. Measurement of the anomaly coefficient by measuring this rotation will provide information about the UV theory, such as the quantization of electric charge and the value of the fundamental unit of charge. The presence of axion strings in the universe relies only on a phase transition in the early universe after inflation, after which the string network rapidly approaches an attractor scaling solution. If there are additional stable topological objects such as domain walls, axions as heavy as 10−15 eV would be accessible. The existence of these strings could also be probed by measuring the relative polarization rotation angle between different images in gravitationally lensed quasar systems.
Traintrack Calabi-Yaus from twistor geometry
Authors: Vergu Cristian , Volk Matthias 
Published: July 2020

Abstract
We describe the geometry of the leading singularity locus of the traintrack integral family directly in momentum twistor space. For the two-loop case, known as the elliptic double box, the leading singularity locus is a genus one curve, which we obtain as an intersection of two quadrics in ℙ3. At three loops, we obtain a K3 surface which arises as a branched surface over two genus-one curves in ℙ1× ℙ1. We present an analysis of its properties. We also discuss the geometry at higher loops and the supersymmetrization of the construction.
R package for statistical inference in dynamical systems using kernel based gradient matching: KGode
Authors: Niu Mu , Wandy Joe , Daly Rónán , Rogers Simon , Husmeier Dirk 
Published: July 2020

AbstractMany processes in science and engineering can be described by dynamical systems based on nonlinear ordinary differential equations (ODEs). Often ODE parameters are unknown and not directly measurable. Since nonlinear ODEs typically have no closed form solution, standard iterative inference procedures require a computationally expensive numerical integration of the ODEs every time the parameters are adapted, which in practice restricts statistical inference to rather small systems. To overcome this computational bottleneck, approximate methods based on gradient matching have recently gained much attention. The idea is to circumvent the numerical integration step by using a surrogate cost function that quantifies the discrepancy between the derivatives obtained from a smooth interpolant to the data and the derivatives predicted by the ODEs. The present article describes the software implementation of a recent method that is based on the framework of reproducing kernel Hilbert spaces. We provide an overview of the methods available, illustrate them on a series of widely used benchmark problems, and discuss the accuracy–efficiency trade-off of various regularization methods.
Recurrent stress urinary incontinence surgery in the United Kingdom: an analysis of the British Society of Urogynaecology database (2007–2015)
Authors: El-Hamamsy Dina , Tincello Douglas G. 
Published: July 2020

Abstract
Introduction and hypothesis
There is a lack of robust evidence guiding treatment options for recurrent stress urinary incontinence (SUI) and limited comparative outcome data. The aim of this study was to examine the pattern of surgery for recurrent SUI performed by gynaecologists in the UK and compare subjective success rates.

Methods
Retrospective review of the British Society of Urogynaecologists database for patients having repeat incontinence procedures (2007–2015) including the number of each procedure and outcome recorded by the International Consultation on Incontinence Urinary Incontinence Short Form (ICIQ-UI-SF) questionnaire. Procedures were compared by year and outcomes by operation. Categorical comparisons were performed using Chi-squared test and numerical comparisons using appropriate non-parametric tests.

Results
A total of 2,938 records were obtained (269 were excluded) and 2,164 women (88.8%) had undergone one previous procedure, most commonly retropubic midurethral sling (MUS; 28.6%). Pelvic floor exercises were offered to 76.2% women. Urodynamic investigation was carried out in 96.2% women: 76.5% had urodynamic stress incontinence. Repeat MUS was the most common procedure (77.3%), followed by bladder neck injections (BNI; 10.2%). Follow-up details were available for 66.1%. Outcome data were poorly reported. Median ICIQ-UI-SF score fell from 16 (0–21) to 0 (0–21) (p < 0.001), 81.6% felt “much better” or “very much better” on Patient Global Impression of Improvement (PGI-I), and 89.3% “cured” or “improved”. MUS, colposuspension and fascial sling showed the best results with regard to the PGI-I score and “change in SUI” (p < 0.001).

Conclusion
MUS and BNI were the most common repeat continence procedures. Follow-up data suggest that MUS, colposuspension and fascial sling are most effective.
Financial intermediation and the welfare theorems in incomplete markets
Authors: Bettzüge Marc Oliver , Hens Thorsten , Zierhut Michael 
Published: July 2020

AbstractIn production economies with incomplete markets, shareholders disagree about the objective of the firm. We show that a weak financial intermediary, who is unable to complete markets, can offer just enough spanning to resolve this disagreement. The intermediary is limited to offering one customized contract per consumer. Knowledge of demand functions is sufficient for offering the right contracts. Once agreement among shareholders is reached, productive efficiency is restored, which in turn permits a Pareto efficient market outcome. This result shows that the first welfare theorem does not depend on complete spanning, but merely on institutions that provide the right span. However, this cannot be said about the second welfare theorem: For some wealth distributions, equilibria with transfers fail to exist due to nonconvexities caused by market incompleteness.
Transoral management of adult benign laryngeal stenosis
Authors: Incandela Fabiola , Missale Francesco , Mora Francesco , Marchi Filippo , Fiz Ivana , Piazza Cesare , Peretti Giorgio 
Published: July 2020

AbstractPurposeManagement of benign laryngeal stenosis (BLS) remains challenging even though transoral treatments in selected cases have shown satisfactory results, at least comparable to open-neck approaches, with reduced invasiveness. To date, no overall consensus has been reached on many issues. The aim of this study is to assess the effectiveness of a purely transoral treatment in a cohort of patients affected by BLS.MethodsWe evaluated 40 patients affected by BLS, treated by transoral surgery between 2013 and 2017. The European Laryngological Society classification for laryngotracheal stenosis was applied for the staging. Improvement in airway patency and quality of life was assessed by decannulation rate, Airway-Dyspnea-Voice-Swallowing (ADVS) score, Voice handicap index (VHI)-30, and Eating assessment tool (EAT)-10 questionnaires.ResultsMean age was 61 years and M:F ratio was 1.4:1. Previous laryngeal surgery was the most common cause of stenosis (50%), followed by radiotherapy (20%), idiopathic etiology (12%), granulomatosis with polyangiitis (10%), and prolonged intubation (8%). Transoral treatment entailed an improvement in quality of life with a significant decrease in the VHI score (p < 0.0001) and improvement in Airway (p = 0.008), Dyspnea (p < 0.0001), and Voice (p < 0.0001) scores. No major perioperative complications were observed. The decannulation rate among patients with a tracheostomy in place (N = 16) was 63%.ConclusionsTransoral treatment of selected BLS managed by a team with high-level expertise in surgery and anesthesiology is associated with significant improvement of quality of life, especially with regard to voice and breathing functions.
Treatment outcomes after uncomplicated and complicated crown fractures in permanent teeth
Authors: Bissinger Ricarda , Müller Daniel David , Reymus Marcel , Khazaei Yegane , Hickel Reinhard , Bücher Katharina , Kühnisch Jan 
Published: July 2020

Abstract
Objectives
The objectives of this retrospective clinical study were to describe characteristics of crown fractures in permanent teeth and to investigate the survival of pulp vitality and restorations in uncomplicated and complicated crown fractures.

Materials and methods
This retrospective study collected information from patients suffering from dental trauma who were treated between January 2004 and June 2017. The study population consisted of 434 patients (253 males/181 females; mean age 20.7 years) with 489 uncomplicated and 127 complicated crown fractures. The Kaplan-Meier survival curves and Cox proportional hazard regression analyses were performed to explore the data statistically.

Results
The mean observation time was 522 days. Uncomplicated crown fractures without luxation showed a higher success rate of 82.3% (345/419) than complicated crown fractures without luxation (72.3%, 73/101). An additional luxation in uncomplicated crown fractures resulted in significantly reduced success rates in terms of survival of the pulp and restoration. Direct restorations survived significantly better independent of the fracture mode than did adhesively reattached crown fragments. No superiority of mineral trioxide aggregate or calcium hydroxide as pulp capping agent in complicated crown fractures was documented. Approximately 85.5% of all complications occurred within 2 years after the accident.

Conclusion
The treatment of crown fractures resulted mostly in successful outcomes and only a moderate number of complications were observed.

Clinical relevance
Primary dental management of crown fractures should follow recently published clinical guidelines, and close monitoring over at least 2 years seems to be justified.
On efficient testing of capacity constraints in pickup-and-delivery problems with trailers
Authors: Drexl Michael 
Published: July 2020

AbstractEfficient feasibility tests are important in many heuristics for routing problems. This paper considers several variants of pickup-and-delivery problems with trailers. Its contribution consists in the description of constant-time procedures for testing observance of capacity constraints when inserting tasks into routes. It is demonstrated that the presence of vehicles with detachable trailers makes capacity feasibility tests considerably more involved.
Age-related differences in reproductive success support the selection hypothesis in a Mute Swan population
Authors: Włodarczyk Radosław , Minias Piotr 
Published: July 2020

AbstractIn many bird species, we observe age-related differences in reproductive success, which usually increases early in life and later decreases due to senescence. At the individual level, an early-life improvement in breeding performance may be associated with experience acquired during early reproductive events (experience hypothesis). At the population level, higher average reproductive success of older age cohorts can result from a disappearance of low-quality individuals from the population (selection hypothesis). Here, we tested these hypotheses in a wild population of the Mute SwanCygnus olorfrom central Poland. In 1996–2016, we collected information on breeding success of 150 marked individuals (70 females and 80 males; 590 breeding attempts). At the population level, there was an initial increase in reproductive success (1–5 years), followed by a plateau (5–8 years), and then by a decrease in older age classes. Both within- and between-individual age variation contributed to the linear increase in reproductive success at the population level, but the latter effect was much more apparent. Short-term breeders (≤ 2 breeding events) had significantly lower reproductive success than long-term breeders (≥ 3 breeding events) during their first two breeding attempts, providing support for selection hypothesis and disappearance of low-quality phenotypes. After exclusion of short-term breeders, a positive age-related increase in reproductive success lost significance, suggesting that under-specific condition (rapid population growth and strong human disturbance) experience may have a limited effect on reproductive success in long-lived species with strong pair bonds, such as the Mute Swan.
Genetic variation of litter meadow species reflects gene flow by hay transfer and mowing with agricultural machines
Authors: Lehmair Theresa Anna , Pagel Ellen , Poschlod Peter , Reisch Christoph 
Published: July 2020

AbstractLitter meadows, historically established for litter production, are species-rich and diverse ecosystems. These meadows drastically declined during the last decades along with decreasing litter use in modern livestock housing. The aim of our study was to identify the drivers of genetic variation in litter meadow species. Therefore, we tested whether genetic diversity and differentiation depend on habitat age, landscape structure, habitat quality, and/or population size. We analysed 892 individuals of Angelica sylvestris, Filipendula ulmaria, and Succisa pratensis from 20 litter meadows across the Allgäu in Baden-Württemberg (Germany) using AFLP analyses. All study species showed moderate levels of genetic diversity, while genetic differentiation among populations was low. Neither genetic diversity nor differentiation were clearly driven by habitat age. However, landscape structure, habitat quality as well as population size revealed different impacts on the genetic diversity of our study species. Past and present landscape structures shaped the genetic diversity patterns of A. sylvestris and F. ulmaria. The genetic diversity of F. ulmaria populations was, moreover, influenced by the local habitat quality. S. pratensis populations seemed to be affected only by population size. All explanatory variables represent past as well as present gene flow patterns by anthropogenic land use. Therefore, we assume that genetic diversity and differentiation were shaped by both historical creation of litter meadows via hay transfer and present mowing with agricultural machines. These land use practices caused and still cause gene flow among populations in the declining habitats.
Maximum-Entropy Based Estimates of Stress and Strain in Thermoelastic Random Heterogeneous Materials
Authors: Krause Maximilian , Böhlke Thomas 
Published: July 2020

AbstractMean-field methods are a common procedure for characterizing random heterogeneous materials. However, they typically provide only mean stresses and strains, which do not always allow predictions of failure in the phases since exact localization of these stresses and strains requires exact microscopic knowledge of the microstructures involved, which is generally not available. In this work, the maximum entropy method pioneered by Kreher and Pompe (Internal Stresses in Heterogeneous Solids, Physical Research, vol. 9, 1989) is used for estimating one-point probability distributions of local stresses and strains for various classes of materials without requiring microstructural information beyond the volume fractions. This approach yields analytical formulae for mean values and variances of stresses or strains of general heterogeneous linear thermoelastic materials as well as various special cases of this material class. Of these, the formulae for discrete-phase materials and the formulae for polycrystals in terms of their orientation distribution functions are novel. To illustrate the theory, a parametric study based on Al-Al2O3composites is performed. Polycrystalline copper is considered as an additional example. Through comparison with full-field simulations, the method is found to be particularly suited for polycrystals and materials with elastic contrasts of up to 5. We see that, for increasing contrast, the dependence of our estimates on the particular microstructures is increasing, as well.
Verifying Indigenous based-claims to forest rights using image interpretation and spatial analysis: a case study in Gunung Lumut Protection Forest, East Kalimantan, Indonesia
Authors: Nugroho Hunggul Y. S. H. , Skidmore Andrew , Hussin Yousif A. 
Published: July 2020

AbstractThe decision of Indonesian’s constitutional court in May 2013, to review Law Number 41/1999 on Forestry, marked a significant step forward in Indonesian policy related to recognition of the rights of Indigenous people to forest. Under the decision, Indigenous forest is no longer considered State forest and rights to it should be granted to Indigenous communities inhabiting them as long as there is proof of their Indigenous status. However, at the implementation level, special measures are required to ascertain who is truly Indigenous. Bogus claims of indigeneity and rights to land are not uncommon. This paper examines the verification mechanism employed for spatial analysis to assess traditional knowledge and Indigenous law implementation as substantial evidences for Indigenous rights recognition to a forest area. We conducted a case study in the Gunung Lumut Protection Forest with two groups of Indigenous communities living around the forest using image interpretation and spatial analysis supported by socio-economic and cultural analysis. We also assessed the capacity and awareness of Indigenous communities to manage their forest. This case study illustrates that in general Indigenous people apply ancestral norms, beliefs and traditional knowledge and wisdom in managing their livelihoods and daily life. Nonetheless, increasing necessities of life, better accessibility, and socio-cultural assimilation has changed the Indigenous people’s behavior towards nature. Holistic approaches in transferring land rights, effective long-term engagement, and revitalization of Indigenous law in line with formal law enforcement, are among the essential measures that must be conducted systematically to ensure that the Indigenous forest remains and is sustainably managed for the benefit of the Indigenous community and the environment.
Reducing the Susceptibility of Lumped-Element KIDs to Two-Level System Effects
Authors: Hornsby A. L. , Barry P. S. , Doyle S. M. , Tang Q. Y. , Shirokoff E. 
Published: July 2020

AbstractArrays of lumped-element kinetic inductance detectors (LEKIDs) optically coupled through an antenna-coupled transmission line are a promising candidate for future cosmic microwave background experiments. However, the dielectric materials used for the microstrip architecture are known to degrade the performance of superconducting resonators. In this paper, we investigate the feasibility of microstrip coupling to a LEKID, focusing on a systematic study of the effect of depositing amorphous silicon nitride on a LEKID. The discrete and spatially separated inductive and capacitive regions of the LEKID allow us to vary the degree of dielectric coverage and determine the limitations of the microstrip coupling architecture. We show that by careful removal of dielectric from regions of high electric field in the capacitor, there is minimal degradation in dielectric loss tangent of a partially covered lumped-element resonator. We present the effects on the resonant frequency and noise power spectral density and, using the dark responsivity, provide an estimate for the resulting detector sensitivity.
Hijab No More: A Phenomenological Study
Authors: Syahrivar Jhanghiz 
Published: July 2020

AbstractThe consumption of Islamic products has been discussed quite extensively in many studies, yet the opposite case which is the dissociation from Islamic products is rarely discussed. This study aims to investigate the phenomena in which Muslim women who were raised with conservative values at home countries choose to dissociate from hijab when they live in the western countries. Moreover, they become activists who discourage other Muslim women from wearing hijab. This study adopts a phenomenological research design. The results suggest that hijab dissociation is a form of compensatory mechanism aimed at minimizing self-discrepancy, restoring self-esteem, gaining personal control, reducing perceived alienation and coping with psychological trauma. This study contributes to the theoretical gap in compensatory consumption literature by linking the theory with the non-consumption of religious products.
Trends over Time in Adolescent Emotional Wellbeing in the Netherlands, 2005-2017: Links with Perceived Schoolwork Pressure, Parent-Adolescent Communication and Bullying Victimization
Authors: De Looze M. E. , Cosma A. P. , Vollebergh W. A. M. , Duinhof E. L. , de Roos S. A. , van Dorsselaer S. , van Bon-Martens M. J. H. , Vonk R. , Stevens G. W. J. M. 
Published: July 2020

AbstractIn some Scandinavian countries, the United Kingdom and the United States, there is evidence of a dramatic decline in adolescent emotional wellbeing, particularly among girls. It is not clear to what extent this decline can be generalised to other high-income countries. This study examines trends over time (2005-2009-2013-2017) in adolescent wellbeing in the Netherlands, a country where young people have consistently reported one of the highest levels of wellbeing across Europe. It also assesses parallel changes over time in perceived schoolwork pressure, parent-adolescent communication, and bullying victimization. Data were derived from four waves of the nationally representative, cross-sectional Dutch Health Behaviour in School-aged Children study (N = 21,901; 49% girls; Mage = 13.78, SD = 1.25). Trends in emotional wellbeing (i.e., emotional symptoms, psychosomatic complaints, life satisfaction) were assessed by means of multiple regression analyses with survey year as a predictor, controlling for background variables. Emotional wellbeing slightly declined among adolescent boys and girls between 2009 and 2013. A substantial increase in perceived schoolwork pressure was associated with this decline in emotional wellbeing. Improved parent-adolescent communication and a decline in bullying victimization may explain why emotional wellbeing remained stable between 2013 and 2017, in spite of a further increase in schoolwork pressure. Associations between emotional wellbeing on the one hand and perceived schoolwork pressure, parent-adolescent communication, and bullying victimization on the other were stronger for girls than for boys. Overall, although increasing schoolwork pressure may be one of the drivers of declining emotional wellbeing in adolescents, in the Netherlands this negative trend was buffered by increasing support by parents and peers. Cross-national research into this topic is warranted to examine the extent to which these findings can be generalised to other high-income countries.