bluuebunny/crossref_metadata_2025 huggingface dataset:
The Wall-Jet Region of a Turbulent Jet Impinging on Smooth and Rough Plates
Authors: Secchi Francesco , Gatti Davide , Frohnapfel Bettina
Published: November 2022

The study reports direct numerical simulations of a turbulent jet impinging onto smooth and rough surfaces at Reynolds number Re = 10,000 (based on the jet mean bulk velocity and diameter). Surface roughness is included in the simulations using an immersed boundary method. The deflection of the flow after jet impingement generates a radial wall-jet that develops parallel to the mean plate surface. The wall-jet is structured into an inner and an outer layer that, in the limit of infinite local Reynolds number, resemble a turbulent boundary layer and a free-shear flow. The investigation assesses the self-similar character of the mean radial velocity and Reynolds stresses profiles scaled by inner and outer layer units for varying size of the roughness topography. Namely the usual viscous units $$u_\tau$$

u
τ

and $$\delta _\nu$$

δ
ν

are used as inner layer scales, while the maximum radial velocity $$u_m$$

u
m

and its wall-normal location $$z_m$$

z
m

are used as outer layer scales. It is shown that the self-similarity of the mean radial velocity profiles scaled by outer layer units is marginally affected by the span of roughness topographies investigated, as outer layer velocity and length reference scales do not show a significantly modified behavior when surface roughness is considered. On the other hand, the mean radial velocity profiles scaled by inner layer units show a considerable scatter, as the roughness sub-layer determined by the considered roughness topographies extends up to the outer layer of the wall-jet. Nevertheless, the similar character of the velocity profiles appears to be conserved despite the profound impact of surface roughness.
Feasibility of volumetric expansion of molten chlorides by conventional pushrod dilatometry
Authors: Parker S. S. , Abdul-Jabbar N. M. , Jackson J. M. , Monreal M.
Published: November 2022

This study is a short communication on progress made in the adaptation of conventional push-rod dilatometry for the measurement of volumetric expansion of liquid salts up to 1300 K. A new crucible design is offered as a practical solution for measurement of liquid salts by this method. Proof-of-concept measurements of the volumetric expansion of sodium chloride (NaCl) are compared to the available data in literature. Measurement of the coefficient of thermal expansion (CTE) of solid NaCl compared favorably to the available data in literature, confirming both magnitude and trend. The average CTE of NaCl (solid) was $$\overline{\alpha }_{{{\text{NaCl}}\;{\text{Solid}}}} = 5.63 \cdot 10^{ - 5} {\raise0.7ex\hbox{$1$} \!\mathord{\left/ {\vphantom {1 K}}\right.\kern-\nulldelimiterspace} \!\lower0.7ex\hbox{$K$}}$$

α
¯

NaCl

Solid

=
5.63
·

10

-
5

1
K

. The volumetric expansion of liquid NaCl was measured as $$\beta_{{{\text{NaCl}}\;{\text{Liquid}}}} \approx 3.96 \cdot 10^{ - 5} 1/K$$

β

NaCl

Liquid

≈
3.96
·

10

-
5

1
/
K

and is essentially constant from the melt point to 1300 K. The volumetric expansion produced by this method is in reasonable agreement with the available published data and previous measurements made by the authors by neutron radiographic technique.
Tracing teachers’ perceptions of entanglement of digitally-mediated educational activities and learning environments: a practice-oriented method
Authors: Sarkio Katri , Korhonen Tiina , Hakkarainen Kai
Published: November 2022

School spaces, technologies, and educational activities shape each other reciprocally. This mixed-methods study (i) developed a methodological framework for tracing the interdependence between school spaces, digital instruments, and teachers’ practices in their use, and (ii) created practice-based knowledge about the relations of teachers’ perceptions of educational activities to school spaces in order to acknowledge architects and educational practitioners in designing learning environments that support educational renewal. We participated in the construction process of a new general upper-secondary school building in Finland, taking into consideration the school’s operating culture and teachers’ pedagogic needs (social aspects), as well as the mediation of school spaces by digitalization and national curriculum reformation (material aspects). The data were collected through a teacher survey (n = 31), teacher interviews (n = 10), and the analysis of group notes that teachers (n = 39) generated in a participatory workshop. The results revealed that teachers consider it critical in the design of new learning environments to foster a collaborative and multidisciplinary school culture that emphasizes learners’ wellbeing and inclusion, as well as utilizing readily-available digital instruments with basic-level functionality. The developed methodological framework appeared suitable for visualizing (with radar charts) the sociomaterial interdependence of school spaces, digital instruments, and teachers’ personal and collective pedagogical activities. We argue that teachers’ perceptions of school spaces, digital instruments, and pedagogic practices entanglement consolidates learning environments design from an educational point of view and should be taken into consideration when constructing new school buildings.
Hierarchical refinement in isogeometric analysis for flexible multibody impact simulations
Authors: Rückwald Tobias , Held Alexander , Seifried Robert
Published: November 2022

Detailed impact simulations in flexible multibody systems can be simulated based on reduced isogeometric analysis (IGA) models. However, a precise simulation of an impact requires a high element resolution in the contact area. Usually in IGA, global refinement methods are used, which are easy to implement. However, in the literature, also the use of hierarchical local refinement is proposed. The local refinement generates fewer countable degrees of freedom compared to an equivalent global refinement. Numerous application areas can be found in the literature, such as contact simulations, where the computational effort is reduced by local refinement. In this work, we introduce the inclusion of hierarchically refined IGA models within the floating frame of reference formulation. Thereby, the hierarchically refined IGA model is reduced and applied in impact simulations. In two application examples, we simulate the impact of two- and three-dimensional spheres and compare with an analytical solution. The focus here is on the comparison of calculation times and accuracy of globally and locally refined reference models. The third application example consists of two flexible double pendulums and is devoted to systems in which the bodies undergo both arbitrary rigid body motions and small elastic deformations.
Flash evaporation of low volatility solid precursors by a scanning infrared laser
Authors: Geiss Jeremias , Schulte Jeldrik , Winterer Markus
Published: November 2022

The steady and stoichiometric delivery of metal-organic precursor mixtures is essential for the production of complex, functional nanomaterials in the gas phase. Chemical vapor synthesis (CVS) is a corresponding process which enables the production of complex oxide nanoparticles such as perovskites. While there exist a vast number of compositions that form perovskite structures, many technically relevant materials consist of transition metals and lanthanides. Their corresponding metal organic precursors often deviate significantly in their thermal behavior, resulting in a challenging delivery of precursors to the reactor. One suitable method for precursor delivery is flash evaporation by an infrared laser, where a mixture of solid precursors is instantly sublimed. Using flash evaporation, the stoichiometry of the generated vapor corresponds to the composition of precursors in the solid mixture. In this study, we present an alternative flash evaporation system based on a marking laser which rapidly scans a focused infrared beam across a precursor powder bed. By focusing the beam, higher energy densities are reached, compared to existing systems while a large area powder bed is repeatedly scanned and sublimed. Fourier-transform infrared spectroscopy (FTIR) measurements confirm the decomposition-free sublimation of precursor mixtures. Furthermore, we confirm the successful precursor delivery by the synthesis of LaFeO3 nanoparticles with an average crystallite size of 5.3 nm. The structure of the ensemble of nanoparticles is examined using X-ray diffraction (XRD) and Rietveld refinement, transmission electron microscopy (TEM), selected area diffraction (SAED), and extended X-ray absorption fine structure (EXAFS) at the Fe-K edge analyzed by reverse Monte Carlo (RMC) analysis.
Deterrence, settlement, and litigation under adversarial versus inquisitorial systems
Authors: Guerra Alice , Maraki Maria , Massenot Baptiste , Thöni Christian
Published: November 2022

In this paper, we compare deterrence, settlement, and litigation spending under adversarial and inquisitorial systems. We present a basic litigation model with three sequential stages—care, settlement, litigation—and we test the predictions on experimental data. In line with our theoretical expectations, we find that, compared with the adversarial system, the inquisitorial system is associated with lower litigation spending, lower rates of cases settled, and tends to strengthen deterrence.
Quantifying the Permeability Enhancement from Blast-Induced Microfractures in Porphyry Rocks Using a Cumulant Lattice Boltzmann Method
Authors: Mitchell T. R. , Roslin A. , Łaniewski-Wołłk Ł. , Onederra I. , Leonardi C. R.
Published: November 2022

The permeability of rocks is important in a range of geoscientific applications, including $$\hbox {CO}_{2}$$

CO
2

sequestration, geothermal energy extraction, and in situ mineral recovery. This work presents an investigation of the change in permeability in porphyry rock samples due to blast-induced fracturing. Two samples were analysed before and after exposure to stress waves induced by the detonation of an explosive charge. Micro-computed tomography was used to image the interior of the samples at a pixel resolution of $$10.3\,\mu m$$

10.3

μ
m

. The images were segmented into void, matrix, and grain to help quantify the differences in the rock samples. Following this, they were binarised as void or solid and the cumulant lattice Boltzmann method (LBM) was applied to simulate the flow of fluid through the connected void space. A correction required with the use of inlet and outlet reservoirs in computational permeability assessment was also proposed. Interrogation of the steady-state flow field allowed the pre- and post-loading permeability to be extracted. Conclusions were then drawn as to the effectiveness of blasting for enhancing fluid accessibility via the generation of microfractures in the rock matrix within the vicinity of a detonated charge. This paper makes contributions in three fundamental areas relating to the numerical assessment of permeability and the enhancement of fluid accessibility in low-porosity rocks. Firstly, a correction factor was proposed to account for the reservoirs commonly imposed on digitised rock samples when investigating sample permeability through numerical methods. Secondly, it validates the benefits of the LBM in handling complex geometries that would be intractable with conventional computational fluid dynamics methods that require body-fitted meshing. This is done with a novel implementation of the cumulant LBM in the open-source TCLB code. Finally, the improvement in fluid accessibility in low-permeability rock samples was shown through the assessment of multiple regions within two blasted samples. It was found that the blast-induced loading can generate extended microfractures that results in multiple orders of magnitude of permeability enhancement if the target rock possesses existing weaknesses and/or mineralisation.
PV-RCNN++: Point-Voxel Feature Set Abstraction With Local Vector Representation for 3D Object Detection
Authors: Shi Shaoshuai , Jiang Li , Deng Jiajun , Wang Zhe , Guo Chaoxu , Shi Jianping , Wang Xiaogang , Li Hongsheng
Published: November 2022

3D object detection is receiving increasing attention from both industry and academia thanks to its wide applications in various fields. In this paper, we propose Point-Voxel Region-based Convolution Neural Networks (PV-RCNNs) for 3D object detection on point clouds. First, we propose a novel 3D detector, PV-RCNN, which boosts the 3D detection performance by deeply integrating the feature learning of both point-based set abstraction and voxel-based sparse convolution through two novel steps,i.e., the voxel-to-keypoint scene encoding and the keypoint-to-grid RoI feature abstraction. Second, we propose an advanced framework, PV-RCNN++, for more efficient and accurate 3D object detection. It consists of two major improvements: sectorized proposal-centric sampling for efficiently producing more representative keypoints, and VectorPool aggregation for better aggregating local point features with much less resource consumption. With these two strategies, our PV-RCNN++ is about$$3\times $$3×faster than PV-RCNN, while also achieving better performance. The experiments demonstrate that our proposed PV-RCNN++ framework achieves state-of-the-art 3D detection performance on the large-scale and highly-competitive Waymo Open Dataset with 10 FPS inference speed on the detection range of$$150m \times 150m$$150m×150m.
Teaching in a natural history museum: what can we learn from Estonian elementary school teachers?
Authors: Uppin Helene , Timoštšuk Inge
Published: November 2022

Natural history museums are great places for learning new concepts and enhancing social skills and motivation. However, it is often difficult for teachers to make full use of the museum as a learning environment. Some teachers seem to be more successful than others in crossing the boundaries—they enjoy and value field trips and advocate for them in the teaching community. Such teachers are a valuable source of information on how to overcome factors that hinder field trips and support meaning-making in the museum. This study explored the practices of eight Estonian elementary school teachers who create, conduct, and analyse learning activities at a natural history museum without the direct help of museum educators. All participants frequently and willingly teach across different learning environments. A qualitative multiple case study strategy was used. The teachers were interviewed and learning activities were observed. Field notes, interview transcripts, lesson plans, and thick descriptions of observations were analysed. The participating teachers valued learning across different learning environments and were skilful in overcoming most problems connected to field trips. Teachers demonstrated supportive relationships with their students, which seemed pivotal in facilitating engagement. Estonian elementary teachers seem to have more autonomy in their teaching practices compared with their colleagues from other countries. However, participants struggled to use hands-on and interactive exhibits. This study highlighted the need for more collaboration between museum educators and Estonian elementary school teachers, especially in order to create more individualized and problem-solving oriented learning tasks.
Aid and institutions: Local effects of World Bank aid on perceived institutional quality in Africa
Authors: Isaksson Ann-Sofie , Durevall Dick
Published: November 2022

Motivated by the lack of sub-national empirical evidence on the relationship between aid and institutional development, this study explores the local effects of World Bank aid on perceived institutional quality in African aid receiving countries. We combine geo-referenced data on the subnational allocation of World Bank aid projects to Africa over the 1995–2014 period with geo-coded survey data for 73,640 respondents across 12 Sub-Saharan African countries. The empirical results, which are robust across a wide range of specifications as well as to using alternative identification strategies, suggest a positive impact of World Bank aid on citizens’ expressed willingness to abide by key formal institutions. This applies for overall World Bank aid, but as may be expected, the estimated effects are more pronounced when restricting our attention to projects focusing on institution building. Notably, the observed effects concern finalized projects, not projects still under implementation, highlighting that institutional change is a slow process.
Planar-Biaxial Thermo-mechanical Fatigue Behavior of Nickel-Base Superalloy Inconel 718 Under Proportional Loading
Authors: Böcker Marco , Babu Harish Ramesh , Henkel Sebastian , Raddatz Mario , Gampe Uwe , Biermann Horst
Published: November 2022

The planar-biaxial thermo-mechanical fatigue behavior of nickel-base superalloy Inconel 718 was studied for selected proportional loading conditions, in particular biaxial strain ratios of 1.0, 0.6, and − 1.0. The cyclic temperature loading with minimum and maximum temperatures of 400 °C and 630 °C and a duration of 250 seconds was either In-Phase or Out-of-Phase to the mechanical axes. Besides the multiaxial tests, uniaxial thermo-mechanical fatigue tests were conducted In-Phase and Out-of-Phase with the same temperature cycle and cycle duration. The performed thermo-mechanical fatigue tests were analyzed regarding the deformation and lifetime behavior and compared with high-temperature isothermal low-cycle fatigue tests from a previous work of the authors. On the side of the lifetime description, a strain- and a stress-based approach were presented. For the planar-biaxial tests, the crack initiation mechanism and crack paths were shown.
Teacher support and learning engagement of EFL learners: The mediating role of self-efficacy and achievement goal orientation
Authors: Liu Qiong , Du Xiujun , Lu Haoyu
Published: November 2022

Given the extremely preeminent role of students’ learning engagement (LE) in their academic success, investigating the predictors of LE for EFL learners seems critical. Prior research has demonstrated that the external environmental factors (e.g., teacher support) and the internal motivational factors (e.g., self-efficacy, achievement goal orientation) were related to LE, yet the internal mechanism is still under-explored. Therefore, this study attempted to explore the associations between teacher support and LE and the possible underlying mechanism through which teacher support influences LE with individual motivational variables of self-efficacy and achievement goal orientation the mediators for EFL learners in China. A sample of 466 Chinese college EFL learners participated in the study. Results indicated that (1) both academic support and emotional support significantly predicted LE; (2) academic support predicted LE through the separate mediation of self-efficacy, mastery goals and performance-approach goals; whereas emotional support only predicted LE through mastery goals; (3) academic support, but not emotional support, predicted LE through the chain mediation of self-efficacy and mastery goals, self-efficacy and performance-approach goals. These results elucidated the mechanism of different teacher support on LE and provided some implications for promoting EFL learners’ engagement.
A new method of evaluating well-controlled reserves of tight gas sandstone reservoirs
Authors: Guo Xiangdong , Lv Min , Cui Hongjun , Lei Kaiyu , Lei Yanyun , Zhu Yushuang
Published: November 2022

Based on static geology and dynamic production of typical wells in Yan'an gas field, a convenient method of the wells controlled reserves was established combining with material balance method (MB). The method was applied to 88 wells in Yan'an tight gas field. The results show that: ①Controlled by pore structure, wells are divided into three types based on the morphology of the capillary pressure curve and the analysis of the parameter characteristics, and their productivity is evaluated, respectively. ②The flow material balance method (FMB) ignores the change of natural gas compressibility, viscosity and Z in the calculation. After the theoretical calculation of 30 gas samples, the slope of the curve of the relationship between bottom hole pressure and cumulative production and the slope of the curve of the relationship between average formation pressure and cumulative production are not equal. ③Compared with the results of the MB, the result of the FMB is smaller, and the maximum error is 34.66%. The consequence of the modified FMB is more accurate, and the average error is 2.45%, which has good applicability. The established method is simple, only requiring production data with high precision, providing a new method to evaluate well-controlled reserves of tight gas sandstone. This method with significant application value can also offer reference values for other evaluating methods of well-controlled reserves.
An explanatory approach to modeling the fleet assignment in the global air transportation system
Authors: Kühlen Markus , Lütjens Klaus , Linke Florian , Gollnick Volker
Published: November 2022

Airlines’ fleet assignment heavily affects the economic and ecological performance of the global air transportation system (ATS). Consequently, it is inevitable to include potential changes of the fleet assignment when modeling and assessing future global ATS scenarios. Therefore, this article presents a novel explanatory approach to modeling the fleet assignment in the global ATS. The presented approach is based on formulating and solving an optimization problem, which describes the fleet assignment in the ATS through a suitable combination of objective function and constraints. While the objective function combines both the airline and the passenger perspective on the fleet assignment, the constraints include additional operational and technological aspects. In comparison to the available global fleet assignment models in the literature, which rely on statistical approaches, the advantages of the presented approach via an optimization problem lie in the overall scenario capability and the consideration of explicit aircraft types instead of simplifying seat categories. To calibrate and validate our model, we use 10 years of historic flight schedule data. The results underline the strengths and weaknesses of the presented approach and indicate potential for future improvement.
Modelling mortality: A bayesian factor-augmented var (favar) approach
Authors: Lu Yang , Zhu Dan
Published: November 2022

Longevity risk is putting more and more financial pressure on governments and pension plans worldwide due to pensioners’ increasing trend of life expectancy and the growing numbers of people reaching retirement age. Lee and Carter (1992,Journal of the American Statistical Association,87(419), 659–671.) applied a one-factor dynamic factor model to forecast the trend of mortality improvement, and the model has since become the field’s workhorse. It is, however, well known that their model is subject to the limitation of overlooking cross-dependence between different age groups. We introduce Factor-Augmented Vector Autoregressive (FAVAR) models to the mortality modelling literature. The model, obtained by adding an unobserved factor process to a Vector Autoregressive (VAR) process, nests VAR and Lee–Carter models as special cases and inherits both frameworks’ advantages. A Bayesian estimation approach, adapted from the Minnesota prior, is proposed. The empirical application to the US and French mortality data demonstrates our proposed method’s efficacy in both in-sample and out-of-sample performance.
Empirical stability boundary for hierarchical triples
Authors: Tory Max , Grishin Evgeni , Mandel Ilya
Published: November 2022

The three-body problem is famously chaotic, with no closed-form analytical solutions. However, hierarchical systems of three or more bodies can be stable over indefinite timescales. A system is considered hierarchical if the bodies can be divided into separate two-body orbits with distinct time and length scales, such that one orbit is only mildly affected by the gravitation of the other bodies. Previous work has mapped the stability of such systems at varying resolutions over a limited range of parameters, and attempts have been made to derive analytic and semi-analytic stability boundary fits to explain the observed phenomena. Certain regimes are understood relatively well. However, there are large regions of the parameter space which remain unmapped, and for which the stability boundary is poorly understood. We present a comprehensive numerical study of the stability boundary of hierarchical triples over a range of initial parameters. Specifically, we consider the mass ratio of the inner binary to the outer third body (

$q_\mathrm{out}$

), mutual inclination (i), initial mean anomaly and eccentricity of both the inner and outer binaries (

$e_\mathrm{in}$

and

$e_\mathrm{out}$

respectively). We fit the dependence of the stability boundary on

$q_\mathrm{ out}$

as a threshold on the ratio of the inner binary’s semi-major axis to the outer binary’s pericentre separation

$a_\mathrm{in}/R_\mathrm{p, out} \leq 10^{-0.6 + 0.04q_\mathrm{out}}q_\mathrm{out}^{0.32+0.1q_\mathrm{out}}$

for coplanar prograde systems. We develop an additional factor to account for mutual inclination. The resulting fit predicts the stability of

$10^4$

orbits randomly initialised close to the stability boundary with

$87.7\%$

accuracy.
The effect of vitamin D supplementation on pain: an analysis of data from the D-Health randomised controlled trial
Authors: Rahman Aninda , Waterhouse Mary , Baxter Catherine , Romero Briony Duarte , McLeod Donald S. A. , Armstrong Bruce K. , Ebeling Peter R. , English Dallas R. , Hartel Gunter , Kimlin Michael G. , O’Connell Rachel , van der Pols Jolieke C. , Venn Alison J. , Webb Penelope M. , Whiteman David C. , Neale Rachel E.
Published: November 2022

Observational studies suggest that 25-hydroxy vitamin D (25(OH)D) concentration is inversely associated with pain. However, findings from intervention trials are inconsistent. We assessed the effect of vitamin D supplementation on pain using data from a large, double-blind, population-based, placebo-controlled trial (the D-Health Trial). 21 315 participants (aged 60–84 years) were randomly assigned to a monthly dose of 60 000 IU vitamin D3 or matching placebo. Pain was measured using the six-item Pain Impact Questionnaire (PIQ-6), administered 1, 2 and 5 years after enrolment. We used regression models (linear for continuous PIQ-6 score and log-binomial for binary categorisations of the score, namely ‘some or more pain impact’ and ‘presence of any bodily pain’) to estimate the effect of vitamin D on pain. We included 20 423 participants who completed ≥1 PIQ-6. In blood samples collected from 3943 randomly selected participants (∼800 per year), the mean (sd) 25(OH)D concentrations were 77 (sd 25) and 115 (sd 30) nmol/l in the placebo and vitamin D groups, respectively. Most (76 %) participants were predicted to have 25(OH)D concentration >50 nmol/l at baseline. The mean PIQ-6 was similar in all surveys (∼50·4). The adjusted mean difference in PIQ-6 score (vitamin D cf placebo) was 0·02 (95 % CI (−0·20, 0·25)). The proportion of participants with some or more pain impact and with the presence of bodily pain was also similar between groups (both prevalence ratios 1·01, 95 % CI (0·99, 1·03)). In conclusion, supplementation with 60 000 IU of vitamin D3/month had negligible effect on bodily pain.
Diet quality indices and their associations with all-cause mortality, CVD and type 2 diabetes mellitus: an umbrella review
Authors: Brlek Aljaž , Gregorič Matej
Published: November 2022

Numerous observational studies have investigated associations between diet indices and health outcomes. Our aim was to systematically synthesise data that was previously summarised separately for each diet index in one umbrella review of all diet indices with sufficient evidence gained in systematic reviews and to assess the quality and strength of evidence for selected health outcomes. The MEDLINE, EMBASE and Scopus databases were systematically searched following the PRISMA guidelines through October 2021 for systematic reviews of observational studies investigating associations between adherence to diet indices and selected health outcomes (all-cause mortality, CVD incidence or mortality, type 2 diabetes mellitus incidence or mortality). Methodological quality and quality of evidence were assessed using the AMSTAR 2 and NutriGrade tools. The inclusion criteria were met by seven systematic reviews, entirely based on prospective cohort studies and reviewing five different diet indices – alternate healthy eating index (AHEI), dietary approaches to stop hypertension (DASH), dietary inflammatory index (DII), healthy eating index (HEI) and Mediterranean diet (MedDiet). All seven included systematic reviews showed that greater adherence to these diet indices reduces the risks of all-cause mortality, CVD incidence and mortality and type 2 diabetes mellitus incidence. Moderate meta-evidence was presented for AHEI and DASH for all outcomes, also for DII for all-cause mortality, CVD mortality and incidence, MedDiet for all-cause mortality and for HEI for CVD incidence and mortality. Our umbrella review provides further evidence for AHEI, DASH, DII and HEI diet indices to be used as predictors of selected health outcomes.
The Economic Crisis of the 1690s in England
Authors: Waddell Brodie
Published: November 2022

Beginning in 1689, England was struck by not one but three economic shocks. First, the war against France – Europe's greatest military power – attracted swarms of hostile warships and privateers that heavily damaged English maritime trade, while military expenses also led to a doubling of the tax burden. Second, wartime conditions and government mismanagement sparked a currency crisis in 1695–7 that halted much domestic commerce and caused a run on the recently founded Bank of England. Third, William III's reign brought rapid inflation in the cost of the necessities of life, especially food and fuel, which resulted in prolonged widespread hunger from 1693 onwards. Yet, these hardships have rarely received more than a passing mention in political histories of the Glorious Revolution and do not fit easily into the narratives of economic expansion in the later Stuart period. Close analysis of these ‘hard times’ demonstrates the limits of histories that emphasize long-term developments over short-term crises. Using evidence from a wide range of local and national archives, this article shows the impact of these shocks on the lives of ordinary people.
Does the time of microencapsulated sodium butyrate supplementation have any effect on the growth performance and health of Holstein dairy calves?
Authors: Eskandary M. M. , Hossein Yazdi M. , Mahjoubi E. , Kazemi-Bonchenari M.
Published: November 2022

The optimal feeding time of microencapsulated sodium butyrate (SB) in whole milk (WM) and starter feed on growth performance and health in dairy calves was evaluated. Forty-eight newborn Holstein calves (body weight (BW) = 39.45 ± 2.48 kg) were randomly assigned to one of the four treatment groups (12 calves per treatment; seven females and five males) in a complete randomized block design and fed (1) WM without microencapsulated SB (CON) supplementation; (2) 4 g/day SB added to WM since days 4–32 (SB-4-32); (3) 4 g/day SB added to WM since days 61–74 and an equal amount was added to starter since days 75–88 (SB-61-88) and (4) 4 g/day SB added to WM since days 4–74 and an equal amount was added to starter since days 75–88 (SB-4-88). Total dry matter intake, starter intake, BW, average daily gain and gain-to-feed were similar between treatments. Calves fed SB-4-32, and SB-4-88 had lower faecal score during pre-weaning, and overall. In addition, calves in SB-4-32 and SB-4-88 groups had fewer numbers of days with scours during the pre-weaning period, and throughout the study. Calves fed SB-61-88 had greater serum total protein during post-weaning. Post-weaning and overall albumin concentrations were greater in SB-4-32 and SB-4-88 calves and tended to be greater in the pre-weaning period compared to control calves. In general, the time of SB addition had no remarkable effect on performance but better faecal score within the pre- and post-weaning periods.
Fatty acid composition in common deep-water shrimps of the Arabian Sea and its importance to human nutrition
Authors: Chakraborty Kajal , Krishnan Soumya , Chakraborty Rekha Devi
Published: November 2022

Deep-water shrimps are recognized as non-conventional culinary delicacies owing to the presence of high-quality polyunsaturated fatty acids, even though they remain one of the predominantly unexplored marine fishery resources. In this study, variation of fatty acid profiles of Aristeus alcocki, Solenocera choprai, Heterocarpus chani and Plesionika quasigrandis, caught along the south-west coast of India (Arabian Sea) during the months spanning from September 2018–April 2019, were compared. Among the deep-water shrimps studied, A. alcocki contained a greater amount of n-3 fatty acids, such as docosahexaenoic and eicosapentaenoic acid along with optimal n-3/n-6 polyunsaturated fatty acid ratios beneficial for human nutrition (up to 8 during the winter months) when compared with other shrimps. In general, fatty acid concentrations exhibited variations, particularly with regard to polyunsaturated fatty acids, such as eicosapentaenoic acid and docosahexaenoic acid. These n-3 fatty acids were predominant during December–February of the studied year, but concentrations were noticeably lower during March and April. Females had considerably higher (P < 0.05) C20–22n-3 fatty acid concentrations along with nutritionally balanced polyunsaturated/saturated fatty acid ratio than males. Results of the two-way multivariate analysis of variance (MANOVA) revealed statistically significant differences in the fatty acid profiles between the species and months. The interaction effects of months with species were also highly significant (Wilk's lambda = 0.000001; F = 187.7, P < 0.0001). Lesser atherogenicity (<3) and thrombogenicity (<0.5) indices coupled with considerably greater n-3/n-6 fatty acid ratios recognized these deep-water species as a possible source of highly nutritional human food.
Disentangling vertebrate spatio-temporal responses to anthropogenic disturbances: evidence from a protected area in central Myanmar
Authors: Thu Aye Myat , Thang Tluang Hmung , Campos-Arceiz Ahimsa , Quan Rui-Chang
Published: November 2022

Urbanization of natural landscapes and increasing human populations have brought people and our companion animals into closer contact with wildlife, even within protected areas. To provide guidance for human–wildlife coexistence, it is therefore critical to understand the effects of anthropogenic disturbances and how well native wildlife species survive in human-dominated landscapes. We investigated the spatio-temporal responses of 10 vertebrate taxa, with an emphasis on the Endangered Eld's deer Rucervus eldii thamin, to anthropogenic disturbances in Shwesettaw Wildlife Sanctuary, Myanmar. We quantified anthropogenic disturbances as distance from human settlements, distance from a highway, and the presence of people and free-ranging dogs Canis familiaris. Anthropogenic disturbances had stronger negative impacts on the detection of native wildlife species than on occupancy. Eld's deer avoided areas close to human settlements and showed low diel activity overlap with both people and dogs, although we found a positive association with human presence at the camera-trap sites. Five species exhibited lower diel activity overlap with people in the rainy season when human activity is the highest in our study area. All studied wildlife species shifted to nocturnal activity or did not show any clear activity pattern during the cool-dry season when the presence of dogs increased. The ecological and conservation impacts of dogs are underestimated in South-east Asia, particularly in Myanmar, and this case study highlights the impacts of dogs on the temporal use of habitat by wildlife and the need for better practices in the management of dogs within protected areas.
Babysong revisited: communication with babies through song
Authors: Young Vanessa , Goouch Kathleen , Powell Sacha
Published: November 2022

The Babysong Project arose out of the Baby Room Project and its aims included supporting baby room practitioners to develop ‘communicative musicality’ (Malloch & Trevarthen 2009), extending research knowledge about baby room practices and helping practitioners to explore opportunities to question and adapt their own ways of working with babies in their care. Six years on, we reflect on the project and consider the significance and sustainability of what might have been achieved. We also probe whether there are further areas for development. We conclude that while there were many positive outcomes, we recognise the challenges of sustaining and nurturing the confidence of practitioners and the desirability of addressing the organisational aspects of the initiative to promote the embedding of practice. There is a real necessity for such projects, often involving radical challenges to previously held attitudes and practices, to be funded over longer periods of time. We also acknowledge the rich, untapped potential of using song to connect with families and carers.
Psychometric properties of the Persian version of the food choice questionnaire and food choice motives among the study population
Authors: Jalali-Farahani Sara , Amiri Parisa
Published: November 2022

Objective:

This study aimed to evaluate the psychometric properties of the Persian version of the food choice questionnaire (FCQ) and determine food choice motives among different study subgroups.

Design:

This cross-sectional study was conducted using self-administered questionnaires, including socio-demographic information and body weight and height data. In addition, study samples were asked to complete the Persian version of the FCQ.

Setting:

Educational and medical centres under the coverage of the Shahid Beheshti University of Medical Sciences in Tehran.

Participants:

Study samples were 871 adults (60·5 % female) selected using a convenience sampling method.

Results:

Mean ± sd age and BMI were 33·4 ± 10·7 years and 24·3 ± 5·2 kg/m2, respectively. More than one-third of the study samples were overweight/obese (35·8 %). A nine-structure model including thirty-two items of the original FCQ showed acceptable fit indices as follows: χ2/df = 3·39, goodness-of-fit index = 0·905, incremental fit index = 0·92, comparative fit index = 0·92, root mean square error of approximation (90 % CI) = 0·052 (0·049, 0·055). Regarding food choice motives, the three most important motives for food choice ranked by study samples were sensory appeal, natural content and health, respectively. Study samples ranked ethical concern as the least important food choice motive.

Conclusion:

These findings support the reliability and validity of the Iranian version of the FCQ. Additionally, results indicate the most important motives for food choice across various socio-demographic and weight status groups which can provide beneficial information for marketing practices in Iran and promote the food choices of Iranians.
Improved Provenance Constraints for Nanaimo Group Sediments, British Columbia, Canada, Through Zircon LA‐ICP‐MS Depth‐Profiling
Authors: Boivin Marie‐Pier , Matthews William , Coutts Daniel , Hubbard Stephen
Published: November 2022

Detrital zircon from Late Cretaceous rocks of the Insular Superterrane have become an important constraint on Cordilleran paleogeography. These interpretations are largely based on the occurrence of a unique detrital zircon facies characterized by a broad Paleoproterozoic (mode 1.70 Ga) and narrow Mesoproterozoic mode (1.38 Ga) in Cordilleran sedimentary rocks. However, uncertainty about the provenance of this facies and the broad geographic distribution of rocks in which it is found limits its usefulness in constraining paleogeography. Detrital rims found on Mesozoic, Proterozoic, and Archean‐aged zircon cores from the Late Cretaceous Nanaimo Group of Western British Columbia, Canada provide constraints into its provenance. Depth‐profiling of a large population of grains (N = 16; n = 3,000), combined with observations regarding zircon external morphology, internal growth textures, U/Th ratios, and U concentrations, indicate high‐grade metamorphism occurred in the sediment source area between 99 Ma and 72 Ma. Rapid cooling of the metamorphic source area at rates of 35 to over 100°C/m.y. between 84 and 63 Ma was required to supply these metamorphic zircon to the basin. The geological history of the sediment source region defined by the rim populations (age of metamorphism and exhumation rate) is inconsistent with previously proposed sediment source areas for the Nanaimo Group in southern (Mojave region) or northern Laurentia (Lehmi Subbasin). We hypothesize that the sediment source area was the adjacent Coast Mountains Batholith and a metasedimentary rock, similar to the Pelona‐Orocopia‐Rand‐type schists, that was exhumed during the Late Cretaceous.
Earth's Earliest Phaneritic Ultramafic Rocks: Mantle Slices or Crustal Cumulates?
Authors: Zuo Jiawei , Webb A. Alexander G. , Chin Emily J. , Ackerman Lukáš , Harvey Jason , Haproff Peter J. , Müller Thomas , Wang Qin , Hickman Arthur H. , Sorger Dominik , Ramírez‐Salazar Anthony
Published: November 2022

When plate tectonics initiated remains uncertain, partly because many signals interpreted as diagnostic of plate tectonics can be alternatively explained via hot stagnant‐lid tectonics. One such signal involves the petrogenesis of early Archean phaneritic ultramafic rocks. In the Eoarchean Isua supracrustal belt (Greenland), some phaneritic ultramafic rocks have been dominantly interpreted as subduction‐related, tectonically‐exhumed mantle slices or cumulates. Here, we compared Eoarchean phaneritic ultramafic rocks from the Isua supracrustal belt with mantle peridotites, cumulates, and phaneritic ultramafic samples from the Paleoarchean East Pilbara Terrane (Australia), which is widely interpreted to have formed in non‐plate tectonic settings. Our findings show that Pilbara samples have cumulate and polygonal textures, melt‐enriched trace element patterns, relative enrichment of Os, Ir, and Ru versus Pt and Pd, and chromite‐spinel with variable TiO2 and Mg#, and relatively consistent Cr#. Both, new and existing data show that cumulates and mantle rocks potentially have similar whole‐rock geochemical characteristics, deformation fabrics, and alteration features. Geochemical modeling results indicate that Isua and Pilbara ultramafic rocks have interacted with low‐Pt and Pd melts generated by sequestration of Pd and Pt into sulphide and/or alloy during magmatism. Such melts cannot have interacted with a mantle wedge. Correspondingly, geochemical compositions and rock textures suggest that Isua and Pilbara ultramafic rocks are not tectonically‐exhumed mantle peridotites, but are cumulates that experienced metasomatism by fluids and co‐genetic melts. Because such rocks could have formed in either plate or non‐plate tectonic settings, they cannot be used to differentiate early Earth tectonic settings.
Ecological Calendars of the Pamir Mountains: Illustrating the Importance of Context‐Specificity for Food Security
Authors: Ullmann A. L. , Haag I. , Bulbulshoev U.
Published: November 2022

Communities in the Pamir Mountains of Central Asia are among the most vulnerable to climate change due to their geographic location and subsistence‐based livelihoods. Historically, ecological calendars supported their agropastoral lifestyles which provided anticipatory capacity to seasonal changes. Due to decades of Soviet colonization and socioecological transformations, knowledge of these ecological calendars fell into disuse. In 2016, Savnob and Roshorv, two villages in the Bartang Valley of Tajikistan, began the revitalization of these calendars using a participatory action research process through knowledge co‐generation. We undertook a comparative analysis to investigate the importance of context‐specificity to ensure food security and reduce their vulnerability to climate change. A preliminary analysis of the temperature regime and local language terms, relating to the positioning and quality of land, framed our methods‐of‐analysis. We compared the villagers' ecological calendars by focusing on indicator species, potentially threatening weather events, land‐use, livelihood activities, and the role of the vernal equinox. Despite their close geographic proximity, context‐specificity determined by distinct microecologies influences the timing and practice of these communities' livelihood activities. These villages have different dependencies on biotic and abiotic events, crops, and land‐use; all of which affect food security and survival. These differences contributed to mutual support between the two villages, increased the availability of food, and thereby, lowered their vulnerability to climate change. As Savnob's and Roshorv's ecological calendars are updated with changing climate, they can once again enhance their anticipatory capacity while reducing their vulnerability.
Modeling Solar Eclipses at Extreme Ultra Violet Wavelengths and the Effects of Nonuniform Eclipse Shadow on the Ionosphere‐Thermosphere System
Authors: Mrak Sebastijan , Zhu Qingyu , Deng Yue , Dammasch Ingolf E. , Dominique Marie , Hairston Marc R. , Nishimura Yukitoshi , Semeter Joshua
Published: November 2022

The impacts of solar eclipses on the ionosphere‐thermosphere system particularly the composition, density, and transport are studied using numerical simulation and subsequent model‐data comparison. We introduce a newly developed model of a solar eclipse mask (shadow) at extreme ultraviolet (EUV) wavelengths—PyEclipse—that computes the corresponding shadowing as a function of space, time, and wavelength of the input solar image. The current model includes interfaces for Solar Dynamics Observatory and Geostationary Operational Environmental Satellites EUV telescopes providing solar images at nine different wavelengths. We show the significance of the EUV eclipse shadow spatial variability and that it varies significantly with wavelength owing to the highly variable solar coronal emissions. We demonstrate geometrical differences between the EUV eclipse shadow compared to a geometrically symmetric simplification revealing changes in occultation vary ±20%. The EUV eclipse mask is validated with in situ solar flux measurements by the PRoject for Onboard Autonomy 2/Large Yield Radiometer instrument suite showing the model captures the morphology and amplitudes of transient variability while the modeled gradients are slower. The effects of spatially EUV eclipse masks are investigated with Global Ionosphere Thermosphere Model for the 21 August 2017 eclipse. The results reveal that the modeled EUV eclipse mask, in comparison with the geometrically symmetric approximation, causes changes in the Total Electron Content in order of ±20%, 5%–20% in F‐region plasma drift, and 20%–30% in F‐region neutral winds.