bluuebunny/crossref_metadata_2025_split huggingface dataset:
Postdigital Possibilities: Operaismo, Co-research, and Educational Inquiry
Authors: Carmichael Patrick 
Published: December 2019

AbstractThere are parallels between the post-Marxist traditions ofoperaismo(workerism) and autonomism and emerging ideas about the ‘postdigital’.Operaistanalyses and approaches, and particularly the work of Romano Alquati on co-research, have the potential to contribute to discourses as to what might be involved in postdigital inquiry in educational settings, and to better understand of critical data literacies. For such educational inquiry to evolve into a comprehensive strategy of ‘co-research’, it is argued that what is needed are models of teacher inquiry with the potential to challenge dominant rhetorics, to support emancipatory research and development, and to establish the postdigital as a counter-hegemonic educational programme.
Comparative statistical analysis of simulated ice management effectiveness
Authors: Price Amy , Yulmetova Maria , Khalil Sarah 
Published: December 2019

AbstractIce management is critical for safe and efficient operations in ice-covered waters; thus, it is important to understand the impact of the operator’s experience in effective ice management performance. This study evaluated the confidence intervals of the mean and probability distributions of two different sample groups, novice cadets and experienced seafarers, to evaluate if there was a difference in effective ice management depending on the operator’s level of experience. The ice management effectiveness, in this study, is represented by the “clearing-to-distance ratio” that is the ratio between the area of cleared ice (km2) and the distance travelled by an ice management vessel (km) to maintain that cleared area. The data analysed in this study was obtained from a recent study conducted by Memorial University’s “Safety at Sea” research group. With the distribution fitting analysis providing inconclusive results regarding the normality of the data, the confidence intervals of the dataset means were obtained using both parametric approaches, such ast-test, Cox’s method, and Johnsont-approach, and non-parametric methods, namely Jackknife and Bootstrap methods, to examine if the assumption of normality was valid. The comparison of the obtained confidence interval results demonstrates that the mean efficiency of the cadets is more consistent, while it is more varied among seafarers. The noticeable difference in ice management performance between the cadet and seafarer sample groups is revealed, thus, proving that crew experience positively influences ice management effectiveness.
Smooth adaptive fixed time convergent controller design for BTT missiles with uncertainties
Authors: Yun Y. , Tang S. , Guo J. , Yun Y. 
Published: December 2019

ABSTRACTA smooth adaptive sliding-mode-based controller is developed for BTT missiles considering nonlinear couplings and aerodynamic uncertainties, wherein fixed-time stability theory is synthesised into sliding-mode control algorithm, such that control variables follow the desired command within fixed-bounded convergence time. Unlike other terminal sliding-mode-related works, the bound of settling time is independent of initial states, indicating that performance metrics, for instance the convergence rate, can be evaluated in advance. The control input is designed to be intrinsically smooth, based on adaptive estimations, and therefore the problem of singularity and chattering is effectively eliminated. Simulation results demonstrate the satisfactory performance and validate the effectiveness of the designed approach.
The distribution and magnitude of subglacial erosion on millennial timescales at Engabreen, Norway
Authors: Rand Cari , Goehring Brent M. 
Published: December 2019

AbstractWe quantify the magnitude of millennial-scale glacial erosion at Engabreen, a temperate glacier in coastal northern Norway, using the in situ cosmogenic nuclides carbon-14 (14C) and beryllium-10 (10Be) in bedrock exposed recently by glacial retreat. Nuclide concentrations show no dependence on distance down or across the valley. As such, resulting Holocene erosion depths along two transects perpendicular to glacier flow are highly variable with no systematic distribution, ranging from 0.10 to 2.95 m. We observed 14C–10Be ratios elevated above the production ratio in samples of abraded bedrock, which is counter to the expectation for surfaces covered during the Holocene and exposed only recently. Muon reactions produce nuclides at greater depths than do spallation reactions and 14C at production rates at higher than those of 10Be, resulting in 14C–10Be ratios that increase with depth. Therefore, elevated 14C–10Be ratios indicate that sampled sites were deeply plucked during recent cover, the Little Ice Age in this case, and then rapidly abraded prior to retreat. Our results suggest that, while glacial erosion can generate a u-shaped valley profile over long periods of time (e.g., 105–107 years), the discontinuous nature of glacial plucking produces spatially variable patterns of erosion over shorter millennial timescales.
Personalized training pathways for translational science trainees: Building on a framework of knowledge, skills, and abilities across the translational science spectrum
Authors: Pusek Susan , Knudson Beth , Tsevat Joel , Patino Cecilia M. , Chaplin David D. , Ingbar David H. , Umans Jason G. , Nagel Joan , Jackson Rebecca D. 
Published: December 2019

AbstractBackground:In order to conduct translational science, scientists must combine domain-specific expertise with knowledge on how to identify and cross translational hurdles, and insights on positioning discoveries for the next translational stage. Expert educators from the Clinical and Translational Science Awards (CTSA) Consortium identified 97 knowledge, skills, and abilities (KSAs) important to include in training programs for translational scientists. To assist educators and trainees to use these KSAs, a conceptual model called “Personalized Pathways” was developed that prioritizes KSAs based on trainee background, research area, or phenotype, and expertise on the research team.Purpose:To understand how CTSA educators prioritize specific KSAs when developing personalized training plans for different translational phenotypes and to identify areas of similarity and difference across phenotypes.Methods:A web-based, cross-sectional survey of CTSA educators was done. For a selected phenotype, respondents recommended one of four levels of mastery for each of the 97 KSAs. Results were tabulated by frequency, weighted by importance, and divided into tertiles representing high, middle, and lower priority KSAs. Agreement across phenotypes was compared using Krippendorff’s alpha.Results:Ten KSAs were high training priority for Preclinical, Clinical, and Community-Engaged phenotypes. These address research methods, responsible conduct of research, team building, and communicating research results. Nine KSAs were in the next tertile for priority reflecting KSAs in biostatistics, bioinformatics, regulatory precepts, and translating implications of research findings.Conclusion:A smaller set of KSAs can be prioritized for training Preclinical-, Clinical-, and Community-Engaged researchers. Future work should explore this approach for other phenotypes.
Select document: Florence Newton's trial for witchcraft, Cork, 1661: Sir William Aston's transcript
Authors: Sneddon Andrew 
Published: December 2019

AbstractThis article examines the sole extant and complete set of signed witness statements for an Irish witchcraft trial. These testimonies were given at Florence Newton's trial for witchcraft at Cork assizes in September 1661, and were signed by the presiding judge, Sir William Aston. The Aston manuscript has been annotated and transcribed in its full, original form for the first time, providing historians with a unique document with which to explore one of the few Irish witchcraft trials. This article also provides suggestions for new ways of looking at the case, and more importantly demonstrates that Newton was not, as once thought, put to death for witchcraft under the 1586 Irish Witchcraft Act but died during her trial. Furthermore, taken in the context of early modern European witchcraft, the case is shown to be an important example of a witch trial occurring in a highly gendered, contested, post-conflict society.
Active Flow Control of Flapping Airfoil Using Openfoam
Authors: Manoj Kumar Vedulla , Wang Chin-Cheng 
Published: December 2019

ABSTRACTThe concept of the fixed wing Micro Air Vehicles (MAVs) has received increasing interest over the past few decades, with the principal aim of carrying out the surveillance missions. The design of the flapping wing MAVs still is in infancy stage. On the other hand, there has been increasing interest over the flow control using plasma actuators in worldwide. The aim of this research is to study the flow control of a flapping airfoil with and without plasma actuation in OpenFOAM. The OpenFOAM CFD platform has been used to develop our own plasma solver. For the plasma induced turbulence in the flow regime, k-ε turbulence model was adopted to address the interaction between plasma and fluid flows. For the plasma-fluid interaction, we use reduced-order modelling to solve the plasma induced electric force. A two dimensional NACA0012 flapping airfoil without plasma actuation study has been benchmarked with previous published literature. We have not only focused on the active flow control but also analyzed the important parameter reduced frequency at different values, those are 0.1, 0.05 and 0.025. Reduced frequency (κ) is very important parameter of an airfoil in the unsteady motion. Our major contribution is testing the several reduced frequencies with the plasma actuation. The positive and beneficial effects of the plasma actuator for all cases have been observed. From the observed results, the flapping with plasma actuation at reduced frequency of 0.1 showed the 14.285 percent lift improvement and the 16.19 percent drag reduction than the flapping without plasma actuation at the respective dynamic stall angles. The maximum lift coefficient is increased with the increase in reduced frequency. In overall, plasma actuators are effective in the flow control of a flapping airfoil. In future, the combination of the flapping with plasma actuators will be a promising application to boast the maneuverability of MAVs.
Breakfast consumption modulates postprandial glycaemic, insulinaemic and NEFA response in pre-diabetic Asian males
Authors: Peh Elaine Wan Yi , Koecher Katie , Menon Ravi , Henry Christiani Jeyakumar 
Published: December 2019

AbstractBreakfast consumption is associated with a variety of nutritional and lifestyle-related health outcomes. The objective of the present study was to investigate how the consumption of breakfast affected blood glucose, insulin and NEFA profiles. A lower postprandial blood glucose, insulin and NEFA response is associated with a lower risk of development of metabolic diseases. In a randomised crossover non-blind design, thirteen pre-diabetic Chinese adult males (BMI 26·7 (sd4·2) kg/m2) attended two sessions where they either consumed a high-glycaemic index breakfast or no breakfast consumption. Changes in glycaemic response over 27 h periods were measured using the Medtronic MiniMed iProTM2 continuous glucose monitoring system. Blood samples were collected using a peripheral venous catheter at fixed intervals for 3 h after the test meal and 3 h after standardised lunch consumption. Postprandial glucose, insulin and NEFA response was calculated as total AUC and incremental AUC using the trapezoidal rule that ignored the area under the baseline. It was found that breakfast consumption significantly decreased postprandial glucose, insulin and NEFA excursion response at lunch time (P= 0·001). Consumption of breakfast attenuated blood glucose profiles by minimising glycaemic excursions and reduced both insulinaemic and NEFA responses in pre-diabetic Asian males during the second meal. This simple dietary intervention may be a novel approach to help improve subsequent lunch glycaemic responses in Asians at high risk of developing diabetes.
High salt intake during puberty leads to cardiac remodelling and baroreflex impairment in lean and obese male Wistar rats
Authors: Rosa G. B. , Cavalet L. C. , de Melo A. B. S. , Junior M. D. F. , Lopes P. R. , Cardoso R. A. , Ferreira L. A. , Tomé F. D. , Nagib P. R. A. , Celes M. R. N. , Pedrino G. R. , Castro C. H. , Mathias P. C. F. , Gomes R. M. 
Published: December 2019

AbstractModern lifestyle increases the prevalence of obesity and its co-morbidities in the young population. High-salt (HS) diets are associated with hypertension and cardiac remodelling. The present study evaluated the potential effects of cardiometabolic programming induced by HS intake during puberty in lean and obese rats. Additionally, we investigated whether HS could exacerbate the impairment of cardiovascular parameters in adult life due to postnatal early overnutrition (PO). At postnatal day 3 (PN3), twenty-four litters of Wistar rats were divided into two groups: normal litter (NL, nine pups/dam) and small litter (SL, three pups/dam) throughout the lactation period; weaning was at PN21. At PN30, the pups were subdivided into two more groups: NL plus HS (NLHS) and SL plus HS (SLHS). HS intake was from PN30 until PN60. Cardiovascular parameters were evaluated at PN120. SL rats became overweight at adulthood due to persistent hyperphagia; however, HS exposure during puberty reduced the weight gain and food intake of NLHS and SLHS. Both HS and obesity raised the blood pressure, impaired baro- and chemoreflex sensitivity and induced cardiac remodelling but no worsening was observed in the association of these factors, except a little reduction in the angiotensin type-2 receptor in the hearts from SLHS animals. Our results suggest that the response of newborn offspring to PO and juveniles to a HS diet leads to significant changes in cardiovascular parameters in adult rats. This damage may be accompanied by impairment of both angiotensin signalling and antioxidant defence in the heart.
War Makes the Regime: Regional Rebellions and Political Militarization Worldwide
Authors: Eibl Ferdinand , Hertog Steffen , Slater Dan 
Published: December 2019

AbstractWar can make states, but can it also make regimes? This article brings the growing literatures on authoritarianism and coups into conversation with the older research tradition analyzing the interplay between war and state formation. The authors offer a global empirical test of the argument that regional rebellions are especially likely to give rise to militarized authoritarian regimes. While this argument was initially developed in the context of Southeast Asia, the article deepens the original theory by furnishing a deductively grounded framework embedded in rational actor approaches in the coup and civil–military literatures. In support of the argument, quantitative tests confirm that regional rebellions make political militarization more likely not simply in a single region, but more generally.
Effects of plasma electron temperature and magnetic field on the propagation dynamics of Gaussian laser beam in weakly relativistic cold quantum plasma
Authors: Aggarwal Munish , Goyal Vimmy , Kashyap Richa , Kumar Harish , Gill Tarsem Singh 
Published: December 2019

AbstractSelf-focusing of Gaussian laser beam has been investigated in quantum plasma under the effect of applied axial magnetic field. The nonlinear differential equation has been derived for studying the variations in the beam-width parameter. The effect of initial plasma electron temperature and the axial magnetic field on self-focusing and normalized intensity are studied. Our investigation reveals that normalized intensity increases to tenfolds where quantum effects are dominant. The normalized intensity further increases to twelvefolds on increasing the magnetic field.
Everyday encounters with difference in urban parks: forging ‘openness to otherness’ in segmenting cities
Authors: Barker Anna , Crawford Adam , Booth Nathan , Churchill David 
Published: December 2019

AbstractIn a context of hyper-diversity and social polarisation, it has been suggested that public parks constitute crucial arenas in which to safeguard deliberative democracy and foster social relations that bind loosely connected strangers. Drawing on empirical research, we offer a more circumspect and nuanced understanding of the – nonetheless vital – role that parks can play in fostering civic norms that support the capacity for living with difference. As ‘spaces apart’, parks have distinctive atmospheres that afford opportunities for convivial encounters in which ‘indifference to difference’ underpins ‘openness to otherness’. As places in which difference is rendered routine and unremarkable, the potency of parks for social cohesion derives from fleeting and unanticipated interactions and the weak ties they promote, rather than strong bonds of community that tend to solidify lines of cultural differentiation. Both by design and unintentionally, regulation and law can serve to foster or constrain the conditions that sustain conviviality.
Performance of GNSS Global Ionospheric Modeling Augmented by LEO Constellation
Authors: Ren Xiaodong , Zhang Xiaohong , Schmidt Michael , Zhao Zhibo , Chen Jun , Zhang Jincheng , Li Xingxing 
Published: December 2019

AbstractThe Low‐Earth‐Orbiting (LEO) satellite has a fast motion and thus contributes to rapid changes in satellite geometric distribution, which can effectively mitigate multipath effects and offer more available observations. Recently, some studies have investigated LEO‐augmented Global Navigation Satellite System (GNSS) positioning and navigation. However, the study of LEO‐augmented global ionospheric modeling was not yet available. In this paper, we present the performance and accuracy of global ionospheric model augmented by LEO constellation for the first time. Based on the three kinds of designed LEO constellations with 60, 96, and 192 satellite simulation data, the results show that LEO observations can expand the coverage and increase the density of ionospheric pierce points (IPPs). Meanwhile, the density of IPPs becomes higher with an increasing number of LEO satellites. When the cutoff elevation is set to 40°, the IPP distribution of GNSS+LEO is still better than that of GNSS‐only at 10°. This way the cutoff elevation angle of the GNSS measurements can be increased, since the mapping function error and the multipath effects are reduced. Furthermore, the performances of global ionosphere maps based on the observations of GNSS‐only and GNSS+LEO scenarios are evaluated. Compared with GNSS‐only, the minimum and maximum bias can be reduced from −18.1 to −7.0 total electron content unit and from 12.6 to 6.4 total electron content unit, respectively, and the root‐mean‐square values with LEO constellations of 60, 96, and 192 satellites improve by 35.9%, 46.5%, and 50%, respectively.
Seasonal Variations in Western North Atlantic Remote Marine Aerosol Properties
Authors: Quinn P.K. , Bates T.S. , Coffman D.J. , Upchurch L. , Johnson J.E. , Moore R. , Ziemba L. , Bell T.G. , Saltzman E.S. , Graff J. , Behrenfeld M.J. 
Published: December 2019

AbstractThe impact of ocean ecosystems on marine boundary layer aerosols and clouds has been the subject of much research but remains uncertain. Five experiments were recently conducted in the western North Atlantic to assess if the seasonally recurring phytoplankton bloom affects aerosol properties. These experiments include the second Western Atlantic Climate Study and four North Atlantic Aerosols and Marine Ecosystem Study cruises. Measurements of unheated and heated number size distributions, cloud condensation nucleus (CCN) concentrations, and aerosol composition were used to identify primary and secondary aerosol components that could be related to the state of the bloom. Only periods of clean marine air, as defined by radon, particle number concentrations, aerosol light absorption coefficient, and back trajectories, were included in the analysis. Nonvolatile material was found to be prevalent in the Aitken mode size range after heating to 230°, likely due to downward mixing from the free troposphere. CCN concentrations at 0.1% supersaturation were best correlated (r2 = 0.73) with accumulation mode nss SO4=. Sea spray aerosol was only correlated with CCN during November when bloom accumulation had not yet occurred and dimethylsulfide concentrations were at a minimum. The fraction of CCN attributable to sea spray aerosol was less than 20% during March, May/June, and September, indicating the limited contribution of sea spray aerosol to the CCN population of the western North Atlantic atmosphere. The strongest link between the plankton bloom and aerosol and cloud properties appears to be due to biogenic non‐sea salt SO4=.
Maternal serum levels of perfluoroalkyl substances in early pregnancy and offspring birth weight
Authors: Wikström Sverre , Lin Ping-I , Lindh Christian H. , Shu Huan , Bornehag Carl-Gustaf 
Published: December 2019

Abstract
Background
Perfluoroalkyl substances (PFASs) are widespread, bioaccumulating, and persistent and show placental transfer. Emerging research indicates associations between prenatal exposure and low birth weight. The aim of this study was to assess the associations between first trimester exposure to PFASs and birth weight (BW) in the Swedish Environmental, Longitudinal, Mother and child, Asthma and allergy (SELMA) study and examine whether associations differ between girls and boys.

Methods
Eight PFASs were analyzed in maternal serum (median: 10 weeks of pregnancy). Associations between prenatal PFAS exposure and birth outcomes with BW, BW for gestational age, and birth small for gestational age (SGA) were assessed in 1533 infants, adjusted for potential confounders and stratified by sex.

Results
Increased maternal perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), and perfluoroundecanoic acid (PFUnDA) were associated with lower BW, lower BW for gestational age, and SGA birth. Associations were significant only in girls, where prenatal exposure in the upper quartile was associated with a 93–142-g lower BW when compared with that of the lowest quartile exposure. The associations were not mediated by effects on gestational age.

Conclusions
We found associations between prenatal exposure for five different PFASs and birth weight, with more pronounced associations in girls than in boys.