bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inflammation and salt in young adults: the African-PREDICT study
Authors: Crouch Simone H. , Botha-Le Roux Shani , Delles Christian , Graham Lesley A. , Schutte Aletta E. 
Published: June 2020

Abstract
Purpose
Low-grade inflammation and a diet high in salt are both established risk factors for cardiovascular disease. High potassium (K+) intake was found to counter increase in blood pressure due to high salt intake and may potentially also have protective anti-inflammatory effects. To better understand these interactions under normal physiological conditions, we investigated the relationships between 22 inflammatory mediators with 24-h urinary K+ in young healthy adults stratified by low, medium and high salt intake (salt tertiles). We stratified by ethnicity due to potential salt sensitivity in black populations.

Methods
In 991 healthy black (N = 457) and white (N = 534) adults, aged 20–30 years, with complete data for 24-h urinary sodium and K+, we analysed blood samples for 22 inflammatory mediators.

Results
We found no differences in inflammatory mediators between low-, mid- and high-sodium tertiles in either the black or white groups. In multivariable-adjusted regression analyses in white adults, we found only in the lowest salt tertile that K+ associated negatively with pro-inflammatory mediators, namely interferon gamma, interleukin (IL) -7, IL-12, IL-17A, IL-23 and tumour necrosis factor alpha (all p ≤ 0.046). In the black population, we found no independent associations between K+ and any inflammatory mediator.

Conclusion
In healthy white adults, 24-h urinary K+ associated independently and negatively with specific pro-inflammatory mediators, but only in those with a daily salt intake less than 6.31 g, suggesting K+ to play a protective, anti-inflammatory role in a low-sodium environment. No similar associations were found in young healthy black adults.
Porous polymers via emulsion templating: pore deformation during solidification cannot be explained by an osmotic transport!
Authors: Koch Lukas , Drenckhan Wiebke , Stubenrauch Cosima 
Published: June 2020

AbstractUsing microfluidics, we were able to synthesize monodisperse water-in-monomer emulsions with styrene and divinylbenzene (DVB) as monomers. When polymerizing and drying these emulsions, we found that the structure of the resulting macroporous polymer strongly depends on the type of initiator. With the oil-soluble azobisisobutyronitrile (AIBN), an open-cell structure with spherical pores was obtained. However, with the water-soluble potassium peroxydisulfate (KPS), a closed-cell structure with rhombic dodecahedron-shaped pores and thick, layered pore walls was formed. In the latter case, a yet unexplained mechanism counteracts the capillary pressure arising from surface minimization: the surface area of a rhombic dodecahedron is ~ 10% larger than that of a sphere. In our previous work, we suggested that the underlying mechanism may be osmotic transport of DVB from the plateau borders to the films. We argued that this transport also explains the layered pore walls, i.e., the formation of two outer poly-DVB-rich layers and one inner polystyrene-rich layer. In order to prove or disprove this mechanism, we carried out additional experiments. However, none of those experiments corroborated our hypothesis of osmotic transport! This study provides clear experimental evidence that our previously suggested mechanism via which spherical droplets become polyhedral pores is incorrect. We will describe (a) the rationale behind the additional experiments, (b) our expectations, and (c) our findings. Last but not least, we will discuss all of this in the light of the proposed osmotic transport.
Comparison of gaze accuracy and precision in real-world and virtual reality
Authors: Pastel Stefan , Chen Chien-Hsi , Martin Luca , Naujoks Mats , Petri Katharina , Witte Kerstin 
Published: June 2020

AbstractVirtual reality (VR) is popular across many fields and is increasingly used in sports as a training tool. The reason, therefore, is recently improved display technologies, more powerful computation capacity, and lower costs of head-mounted displays for VR. As in the real-world (R), visual effects are the most important stimulus provided by VR. However, it has not been demonstrated whether the gaze behavior would achieve the same level in VR as in R. This information will be important for the development of applications or software in VR. Therefore, several tasks were designed to analyze the gaze accuracy and gaze precision using eye-tracking devices in R and VR. 21 participants conducted three eye-movement tasks in sequence: gaze at static targets, tracking a moving target, and gaze at targets at different distances. To analyze the data, an averaged distance with root mean square was calculated between the coordinates of each target and the recorded gaze points for each task. In gaze accuracy, the results showed no significant differences between R and VR in gaze at static targets (1 m distance, p > 0.05) and small significant differences at targets placed at different distances (p < 0.05), as well as large differences in tracking the moving target (p < 0.05). The precision in VR is significantly worse compared to R in all tasks with static gaze targets (p < 0.05). On the whole, this study gives a first insight into comparing foveal vision, especially gaze accuracy and precision between R and VR, and can, therefore, serve as a reference for the development of VR applications in the future.
Qualitative description of the submission and agonistic behavior of the Spix’s Macaw (Cyanopsitta spixii, Spix 1824), with special reference to the displacement displays
Authors: Marcuk Vladislav , Purchase Cromwell , de Boer Donovan , Bürkle Marcellus , Scholtyssek Katrin 
Published: June 2020

AbstractThe Spix’s Macaw (Cyanopsitta spixii) represents one of the four avian taxa, in which its global population is entirely captively managed. The species was declared “extinct in the wild” after several attempts failed to rediscover any remaining individuals in the wild since 2000. As an integral part of the ongoing ex situ conservation efforts, a long-term ethological study was conducted at the ACTP facility to investigate the behavioral repertoire of the largest subpopulation of this species in captivity. In this paper we provide an illustrated comprehensive ethogram with detailed description of the submission, displacement and agonistic behavior. The agonistic behavior is categorized in two subcategories, where qualitative aspects for distinct behavior elements for the intimidatory and conflict behavior are given. In addition, displacement displays are described in detail for the first time for a species of the genera. In total, 35 distinct behavior elements of the agonistic, displacement and submission behavioral repertoire are covered. Digital video images related to the article are available at http://www.momo-p.com/index-e.html, movieid:momo200417sm05a, momo200416sm01a, momo200417sm06a, momo200416sm06a, momo200416sm04a, momo200417sm03a, momo200417sm02a, momo200416sm05a, momo200417sm04a, momo200416sm02a, momo200416sm03a, and momo200417sm01a.
The role of dilution mediums in studies of fumigant insecticidal activity of essential oils
Authors: Krzyżowski Michał , Baran Bartosz , Łozowski Bartosz , Francikowski Jacek 
Published: June 2020

AbstractThe essential oils (EOs) are volatile plant extracts that are commonly considered as potential biopesticides. They present promising properties as relatively safe and potent insecticides, primarily delivered via fumigation. Such specificity of the EOs has led to the growing interest of researchers and, subsequently, to an increasing body of publications. The studies focusing on assessing the insecticidal action of EOs frequently require testing the effects of several dilutions of a given EO. To this end, researchers employ a range of solvents differing widely between the studies. While informative, the standardization concerning either tested oil or pest species is lacking in these studies. The presented study herein aimed to test whether the solvent used could affect the observed insecticidal activity of tested EO. As the model setup for studying the possible influence of solvents on the insecticidal effect of EOs, two EOs: mint and rosemary were chosen. The EOs were applied in fumigation assay against three economically important species of stored product pests: Callosobruchus maculatus, Sitophilus oryzae, and Tribolium castaneum. Each EO was tested in three concentrations—diluted with a range of solvents; dimethyl sulfoxide, acetone, methanol, ethanol, paraffin (mineral) oil, ultrapure water with 0.1% polysorbate 20 (TWEEN® 20). The results confirm the hypothesis that the applied solvent could significantly alter the observed efficiency of tested EO. Such a result is of crucial value for conducting credible meta-analysis as well as for establishing a high standard of reproducibility.
Factors affecting attitude towards breastfeeding in public: a cross-sectional web-based study on Polish women
Authors: Olejnik Agata , Adamczewska Aleksandra , Kossakowska Karolina 
Published: June 2020

AbstractAimBreastfeeding is believed to be beneficial to both mother and child. Although the percentage of Polish mothers who start breastfeeding after childbirth is relatively high, most of them finish after 8–12 weeks. Many factors are involved in the decision to stop, including an unfavourable social attitude towards breastfeeding in public. Our cross-sectional web-based study was conducted to identify the factors predicting negative attitudes towards public breastfeeding among Polish women.Subjects and methodsA population-based internet-administered public opinion survey was conducted among 663 women aged 19 to 50 years old regarding their attitude towards breastfeeding in public. The participants completed a questionnaire concerning demographic data, general beliefs about breastfeeding and attitudes towards breastfeeding in public.ResultsOverall, 46.6% of respondents had a negative attitude towards breastfeeding in public. Multivariable logistic regression analysis found that the beliefs that breastfeeding is not a natural activity [adjusted odds ratio (AOR) = 17.54; 95% CI = 1.44–21.95] and that breastfeeding is not emotionally moving (AOR = 8.73; 95% CI = 3.950–19.30) or not having any opinion (AOR = 2.31; 95% CI: 1.18–4.50) to play the most significant roles in shaping a negative attitude, as well as breastfeeding their own child for < 6 months (AOR = 13.93; 95% CI = 0.14–20.24).ConclusionsAs women’s beliefs about breastfeeding play a key role in choosing to breastfeed in public, there is a need to further explore attitudes regarding this activity.
Lack of nutritional knowledge among Norwegian medical students concerning vegetarian diets
Authors: Sanne Ingebjørg , Bjørke-Monsen Anne-Lise 
Published: June 2020

Abstract
Aim
Vegetarian diets are increasingly popular, particularly among young women. However, exclusion of animal products from the diet increases the risk of micronutrient deficiencies, which is particularly unfortunate during pregnancy and childhood. A person needs a substantial amount of nutritional knowledge to achieve a nutritionally complete vegetarian diet. We have tested nutritional knowledge among well-educated young vegetarians and omnivores.

Subjects and methods
In October 2018, medical students at the University of Bergen, Norway (N = 880), were invited to take an anonymous survey to test their nutritional knowledge concerning micronutrients in vegetarian diets.

Results
The responses from the students (n = 394, 45%) were categorized according to diet: former or current vegetarians (24%) versus always omnivores (76%). Forty-five percent of the vegetarians and 28% of the omnivores did not consider it necessary to take supplements while following a vegetarian diet. Sixty-one percent of vegetarians and 38% of omnivores considered it possible to have a well-balanced vegan diet. Plant foods were wrongly considered to be a dietary source of vitamin B12 by 33% and of iodine by 20% of the students.

Conclusion
Nutritional knowledge concerning vegetarian diets was not optimal among Norwegian medical students, even if they had ever followed a vegetarian diet. As vegetarian diets are popular among the younger generation and pose a risk of micronutrient deficiencies, this is a public health concern. Nutrition education should be improved in the population. A more extensive integration of nutritional training in the medical curriculum must be implemented so doctors can give adequate nutritional guidance.
Measurement error of the Mini-Mental State Examination among individuals with dementia that reside in nursing homes
Authors: Hörnsten Carl , Littbrand Håkan , Boström Gustaf , Rosendahl Erik , Lundin-Olsson Lillemor , Nordström Peter , Gustafson Yngve , Lövheim Hugo 
Published: June 2020

AbstractFew studies have investigated the measurement error of the Mini-Mental State Examination (MMSE) in the same unit of measurement, also known as absolute reliability. This measurement can help determine whether an observed score change for an individual is likely to represent true change. The aim of this study was to investigate the absolute reliability of the MMSE among individuals with dementia that reside in nursing homes. Among 88 participants, 19 (21.6%) were men, 35 (39.8%) had Alzheimer’s disease, 35 (39.8%) had vascular dementia, and the mean age was 84.0 years (range 65–98). The participants were tested and retested with the MMSE within 1–6 days. Both tests were administered by the same assessor at the same time of day. The mean MMSE score was 13.7 (range 0–28). The absolute difference between MMSE scores varied from 0 to 6 points, and the differences did not correlate with the corresponding score means (p = 0.874). The smallest detectable change (SDC) between two measurements was 4.00. The SDC was independent of depression, impaired vision and hearing, delirium within the last week, dementia type and age. However, the SDC was 5.56 among men and 3.50 among women (p = 0.003). In conclusion, for individuals with dementia that reside in nursing homes, it seems like their MMSE score needs to change by four or more points between two measurements in order for their score change to be reliably higher than the measurement error.
Numerical investigation of the influence of cross-sectional shape and corrosion damage on failure mechanisms of RC bridge piers under earthquake loading
Authors: Afsar Dizaj Ebrahim , Kashani Mohammad M. 
Published: June 2020

AbstractThe study presented in this paper describes the coupled influence of corrosion and cross-sectional shape on failure mechanism of reinforced concrete (RC) bridge piers subject to static and dynamic earthquake loading. To this end, two RC columns varied in cross-sectional shape and corrosion degree are considered. An advanced nonlinear finite element model, which accounts for the impact of corrosion on inelastic buckling and low-cycle fatigue degradation of reinforcing bars is employed. The proposed numerical models are then subjected to a series of monotonic pushover and incremental dynamic analyses. Using the analyses results, the failure mechanisms of the columns are compared at both material and component levels. Furthermore, using an existing model in the literature for uncorroded columns, a dimensionless corrosion dependent local damage index is developed to assess the seismic performance of the examined corroded RC columns. The proposed new damage index is validated against the nonlinear analyses results. It is concluded that the combined influence of corrosion damage and cross-sectional shape result in multiple failure mechanisms in corroded RC columns.
Penalized quasi-maximum likelihood estimation for extreme value models with application to flood frequency analysis
Authors: Bücher Axel , Lilienthal Jona , Kinsvater Paul , Fried Roland 
Published: June 2020

AbstractA common statistical problem in hydrology is the estimation of annual maximal river flow distributions and their quantiles, with the objective of evaluating flood protection systems. Typically, record lengths are short and estimators imprecise, so that it is advisable to exploit additional sources of information. However, there is often uncertainty about the adequacy of such information, and a strict decision on whether to use it is difficult. We propose penalized quasi-maximum likelihood estimators to overcome this dilemma, allowing one to push the model towards a reasonable direction defined a priori. We are particularly interested in regional settings, with river flow observations collected at multiple stations. To account for regional information, we introduce a penalization term inspired by the popular Index Flood assumption. Unlike in standard approaches, the degree of regionalization can be controlled gradually instead of deciding between a local or a regional estimator. Theoretical results on the consistency of the estimator are provided and extensive simulations are performed for the reason of comparison with other local and regional estimators. The proposed procedure yields very good results, both for homogeneous as well as for heterogeneous groups of sites. A case study consisting of sites in Saxony, Germany, illustrates the applicability to real data.
Coping with Societal Challenges: Lessons for Innovation Policy Governance
Authors: Fagerberg Jan , Hutschenreiter Gernot 
Published: June 2020

AbstractGrand societal challenges, such as global warming, can only be adequately dealt with through wide-ranging changes in technology, production and consumption, and ways of life, that is, through innovation. Furthermore, change will involve a variety of sectors or parts of the economy and society, and these change processes must be sufficiently consistent in order to achieve the desired results. This poses huge challenges for policy-making. In this paper, we focus on implications for the governance of innovation policy, i.e., policies influencing a country’s innovation performance. Based on a systemic understanding of innovation and the factors shaping it, the paper highlights the need for effective coordination of policies influencing innovation and what changes in innovation policy governance this may require. To throw further light on how this may be realized, the paper discusses evidence on national innovation policy practice, from Finland, the Netherlands and Sweden, respectively, drawing on the country reviews of innovation policy conducted by the OECD as well as other sources. It is concluded that, for innovation policy to tackle societal challenges effectively, clearer goals and stronger and better coordination among the various actors—both public and private—whose actions matter for innovation performance will be required. Based on the experiences of the three countries, the paper particularly considers the role that comprehensive and inclusive innovation policy councils, with the prime minister in a central role, may play in such a process.
Multi-scale characterization of ceramic inert-substrate-supported and co-sintered solid oxide fuel cells
Authors: Wankmüller Florian , Meffert Matthias , Russner Niklas , Weber André , Schmieg Johannes , Störmer Heike , Dickel Thorsten , Lupetin Piero , Maier Nicolas , Gerthsen Dagmar , Ivers-Tiffée Ellen 
Published: June 2020

AbstractUnderstanding cell performance is essential for selecting cell components and the processing parameters for solid oxide fuel cells. The scale of relevant microstructural features in electrodes, electrolyte and supporting substrate covers several orders of magnitude. This contribution will demonstrate how advanced correlative multi-scale tomography can be used to identify those parameters: ranging from millimeter to nanometer scale. We employ optical microscopy, X-ray computed tomography (μ-CT), focused ion beam-scanning electron microscopy tomography and energy-dispersive X-ray spectroscopy–scanning transmission electron microscopy. Additional investigations by selected area electron diffraction allow a determination of the underlying crystal structures. An SOFC design based on the co-sintering of an inert substrate with various functional layers on top is used as a blueprint, allowing further methodological development. The effect of interdiffusion between phases and development of secondary phases on microstructure and chemical composition will be shown. Furthermore, porosity and tortuosity extracted individually from all porous layers will allow modeling of gas diffusion loss contributions within the co-fired cell structure. This exemplifies how correlative tomography helps to understand specific contributions to overall cell performance.
Pulsating flow in a channel filled with a porous medium under local thermal non-equilibrium condition: an exact solution
Authors: Fathi-kelestani Arman , Nazari Meysam , Mahmoudi Yasser 
Published: June 2020

AbstractThe present work investigates analytically the problem of forced convection heat transfer of a pulsating flow, in a channel filled with a porous medium under local thermal non-equilibrium condition. Internal heat generation is considered in the porous medium, and the channel walls are subjected to constant heat flux boundary condition. Exact solutions are obtained for velocity, Nusselt number and temperature distributions of the fluid and solid phases in the porous medium. The influence of pertinent parameters, including Biot number, Darcy number, fluid-to-solid effective thermal conductivity ratio and Prandtl number are discussed. The applied pressure gradient is considered in a sinusoidal waveform. The effect of dimensionless frequency and coefficient of the pressure amplitude on the system’s velocity and temperature fields are discussed. The general shape of the unsteady velocity for different times is found to be very similar to the steady data. Results show that the amplitudes of the unsteady temperatures for the fluid and solid phases decrease with the increase in Biot number or thermal conductivity ratio. For large Biot numbers, dimensionless temperatures of the solid and fluid phases are similar and are close to their steady counterparts. Results for the Nusselt number indicate that increasing Biot number or thermal conductivity ratio decreases the amplitude of Nusselt number. Increase in the internal heat generation in the solid phase does not have a significant influence on the ratio of amplitude-to-mean value of the Nusselt number, while internal heat generation in the fluid phase enhances this ratio.
Inappropriate stereotypical inferences? An adversarial collaboration in experimental ordinary language philosophy
Authors: Fischer Eugen , E. Engelhardt Paul , Sytsma Justin 
Published: June 2020

AbstractThis paper trials new experimental methods for the analysis of natural language reasoning and the (re)development of critical ordinary language philosophy in the wake of J.L. Austin. Philosophical arguments and thought experiments are strongly shaped by default pragmatic inferences, including stereotypical inferences. Austin suggested that contextually inappropriate stereotypical inferences are at the root of some philosophical paradoxes and problems, and that these can be resolved by exposing those verbal fallacies. This paper builds on recent efforts to empirically document inappropriate stereotypical inferences that may drive philosophical arguments. We demonstrate that previously employed questionnaire-based output measures do not suffice to exclude relevant confounds. We then report an experiment that combines reading time measurements with plausibility ratings. The study seeks to provide evidence of inappropriate stereotypical inferences from appearance verbs that have been suggested to lie at the root of the influential ‘argument from illusion’. Our findings support a diagnostic reconstruction of this argument. They provide the missing component for proof of concept for an experimental implementation of critical ordinary language philosophy that is in line with the ambitions of current ‘evidential’ experimental philosophy.