bluuebunny/crossref_metadata_2025_split huggingface dataset:
For unto every one that hath shall be given: teachers’ competence profiles regarding the promotion of self-regulated learning moderate the effectiveness of short-term teacher training
Authors: Dignath Charlotte 
Published: September 2021

AbstractTeachers play a major role in the effectiveness of student learning. Teacher’s competence contributes to their classroom practice. We applied a generic model of teacher competence to the specific context of teachers’ promotion of self-regulated learning (SRL) in the classroom, and investigated teachers’ competence profiles regarding SRL (study 1) and how teachers’ competence can moderate the effectiveness of teacher training (study 2). In the first step, in study 1 191 teachers were assessed according to different characteristics that have been found to be important aspects of teacher competence (knowledge, beliefs, and self-efficacy). To investigate how these characteristics co-occur in teachers we determined latent profiles of teacher competence regarding SRL. To this end, and the data were subjected to a latent profile analysis that yielded two levels of competence profile: low and high competence to promote SRL. These competence profiles were positively associated with teachers’ self-reported SRL practice in the classroom. Next, to test whether these competence profiles affect teachers’ competence development, we conducted a training study. In this study 2, we examined the effects of an 8-h long teacher training about SRL on the development of teachers’ competence (knowledge, beliefs, self-efficacy) and on their SRL practice in the classroom with a repeated measures control group design. Forty-five teachers participated in the training, and these teachers and their 543 students evaluated the effectiveness of the training. Training effects were found on the teacher level, but not on the student level. Teachers who participated in the training outperformed the control teachers in their development of self-efficacy to foster SRL, and their perceived SRL practice. Moreover, teachers’ competence profiles moderated the training effect, showing that teachers with an initially high competence benefitted more from the training. Applying a generic model of teacher competence to the context of promoting SRL seems beneficial to inspire future research on indicators of teachers’ SRL practice.
Bayesian MEG time courses with fMRI priors
Authors: Wang Yingying , Holland Scott K. 
Published: September 2021

AbstractMagnetoencephalography (MEG) records brain activity with excellent temporal and good spatial resolution, while functional magnetic resonance imaging (fMRI) offers good temporal and excellent spatial resolution. The aim of this study is to implement a Bayesian framework to use fMRI data as spatial priors for MEG inverse solutions. We used simulated MEG data with both evoked and induced activity and experimental MEG data from sixteen participants to examine the effectiveness of using fMRI spatial priors in MEG source reconstruction. For simulated MEG data, incorporating the prior information from fMRI increased the spatial resolution of MEG source reconstruction by 3 mm on average. For experimental MEG data, fMRI spatial information reduced the spurious clusters for evoked activity and showed more left-lateralized activation pattern for induced activity. The use of fMRI spatial priors greatly reduced location error for induced source in MEG data. Our results provide empirical evidence that the use of fMRI spatial priors improves the accuracy of MEG source reconstruction. The combined MEG and fMRI approach can provide neuroimaging data with better spatial and temporal resolutions to add another perspective to our understanding of the neurobiology of language. The potential clinical applications include pre-surgical evaluation of language function for epilepsy patients and evaluation of language network for children with language disorders.
Evaluation and optimisation of a slurry-based layer casting process in additive manufacturing using multiphase simulations and spatial reconstruction
Authors: Erhard P. , Seidel A. , Vogt J. , Volk W. , Günther D. 
Published: September 2021

AbstractSlurry-based 3D printing allows ceramic green bodies to be fabricated at high packing densities. In contrast to powder-based binder jetting, full densification of printed parts can be achieved in a subsequent sintering step as fine particles dispersed in a suspension are cast and compacted. Slurry-based 3D printing is thus expected to overcome the application limits of the powder-based alternative in metal casting in terms of unfavorable properties like high surface roughness, low density and low mechanical strength. To ensure stress-free drying and therefore high qualities of the compounds made in layers, it is crucial to fabricate single layers with a high level of homogeneity. This paper presents a CFD model based on the open-source simulation environment OpenFOAM to predict the resulting homogeneity of a cast slurry layer with defined parameter sets or coater geometries using the Volume-Of-Fluid method. Moreover, a novel method of spatial reconstruction is proposed to evaluate the surface quality of layers on a minimised computional demand. By comparing the results of the simulation with the real macroscopic behaviour determined in experiments, the approach is found to be a useful tool for suggesting suitable parameters and coater geometries for processing slurries. A precise reconstruction of the outline of the coating area with different process parameters and an approximate prediction of the effect on surface roughness was achieved.
Aortic valve replacement in a patient with self-reported systemic multiple metal allergy
Authors: Nagura Saori , Sakai Mari , Obi Hayato , Fukahara Kazuaki 
Published: September 2021

AbstractWe report our experience with aortic valve replacement in a patient with severe aortic stenosis who had self-reported allergies to multiple metals. The patient was a 74-year-old man. He developed palmoplantar pustulosis after using a dental prosthesis, and a patch test revealed reactions to several metals; therefore, he was diagnosed with systemic metal allergy. His condition progressed to severe aortic stenosis, and bioprosthetic aortic valve replacement was planned. The Avalus valve (Medtronic, Minneapolis, MN, USA) was selected for aortic valve replacement, since the patient reported having allergies to several metals. While most devices used in cardiac surgery contain some amount of metal, the Avalus bioprosthetic valve does not contain metal in the stent and has been extremely useful for aortic valve replacement in patients with suspected metal allergies.
Self-focused attention related to social anxiety during free speaking tasks activates the right frontopolar area
Authors: Tomita Nozomi , Kumano Hiroaki 
Published: September 2021

AbstractSelf-focused attention (SFA) and other-focused attention (OFA) are central maintenance factors of social anxiety. Tomita et al., Cognitive Therapy and Research 44:511–525, 2020 investigated brain activities when manipulating SFA and OFA during speech tasks, after controlling for social anxiety, using near-infrared spectroscopy (NIRS) and eye-tracking. Compared with the control condition, the SFA condition demonstrated greater activity in the right frontopolar area (rFPA) and right dorsolateral prefrontal cortex. In the OFA condition, relative to controls, activity was greater in the left superior temporal gyrus. We investigated whether the activity in these brain areas increased in healthy individuals in proportion to their social anxiety tendency without manipulating SFA and OFA. Thirty-nine participants performed speech tasks under a no attentional manipulation (no-instruction) condition and a control (looking at various places) condition. Brain activity was measured using NIRS (oxy-Hb responses), and eye movements were tracked. We found that higher social anxiety was associated with higher rFPA activity in the no-instruction condition compared to the control condition and that higher subjective SFA during the no-instruction condition with higher social anxiety was associated with increased rFPA between the no-instruction and control conditions. These results suggest that greater activity in the rFPA is a useful objective measure of SFA related to social anxiety during speech tasks.
Genome-wide identification and expression analysis of the 2OG-Fe(II) oxygenase gene family in upland cotton (Gossypium hirsutum L.)
Authors: Sun Fenglei , Chen Quanjia , Chen Qin , Jiang Menghui , Zeng Qingtao , Qu Yanying 
Published: September 2021

AbstractThe 2OG-Fe(II) oxygenase (RF) family of enzyme proteins can affect bulliform cells and cause leaf curling. However, there are few studies related to this family in cotton, and there has been no systematic analysis of RF genes. Here, we determined 25 RF genes in the complete genome sequence of upland cotton (Gossypium hirsutum L.) and 11 RF genes in the complete genome sequence of Arabidopsis thaliana. Cotton RF proteins can be divided into three categories. Whole genome/fragment and scattered replication events played an important role in the expansion of the RF gene family. qRT-PCR analysis results showed that RF genes respond to drought stress Pairwise comparison results showed that the expression of RF genes in Shi yuan 321 was higher than that in Kui 85–174. Overall, genome-wide identification approach was used to further analyze the related functions of the RF gene family, which may include the response to drought stress, in cotton.
Application of the research electronic data capture (REDCap) system in a low- and middle income country– experiences, lessons, and challenges
Authors: Odukoya O. , Nenrot D. , Adelabu H. , Katam N. , Christian E. , Holl J. , Okonkwo A. , Kocherginsky M. , Kim K.-Y. , Akanmu S. , Abdulkareem F. B. , Anorlu R. , Musa J. , Lesi O. , Hawkins C. , Okeke O. , Adeyemo W. L. , Sagay S. , Murphy R. , Hou L. , Ogunsola F. T. , Wehbe F. H. 
Published: September 2021

AbstractThe challenges of reliably collecting, storing, organizing, and analyzing research data are critical in low- and middle-income countries (LMICs), particularly in Sub-Saharan Africa where several healthcare and biomedical research organizations have limited data infrastructure. The Research Electronic Data Capture (REDCap) System has been widely used by many institutions and hospitals in the USA for data collection, entry, and management and could help solve this problem. This study reports on the experiences, challenges, and lessons learned from establishing and applying REDCap for a large US-Nigeria research partnership that includes two sites in Nigeria, (the College of Medicine of the University of Lagos (CMUL) and Jos University Teaching Hospital (JUTH)) and Northwestern University (NU) in Chicago, Illinois in the United States. The largest challenges to this implementation were significant technical obstacles: the lack of REDCap-trained personnel, transient electrical power supply, and slow/ intermittent internet connectivity. However, asynchronous communication and on-site hands-on collaboration between the Nigerian sites and NU led to the successful installation and configuration of REDCap to meet the needs of the Nigerian sites. An example of one lesson learned is the use of Virtual Private Network (VPN) as a solution to poor internet connectivity at one of the sites, and its adoption is underway at the other. Virtual Private Servers (VPS) or shared online hosting were also evaluated and offer alternative solutions. Installing and using REDCap in LMIC institutions for research data management is feasible; however, planning for trained personnel and addressing electrical and internet infrastructural requirements are essential to optimize its use. Building this fundamental research capacity within LMICs across Africa could substantially enhance the potential for more cross-institutional and cross-country collaboration in future research endeavors.
Introspection and Belief: Failures of Introspective Belief Formation
Authors: Caporuscio Chiara 
Published: September 2021

AbstractIntrospection has traditionally been defined as a privileged way of obtaining beliefs about one’s occurrent mental states, and the idea that it is psychologically and epistemically different from non-introspective belief formation processes has been widely defended. At the same time, philosophers and cognitive scientists alike have pointed out the unreliability of introspective reports in consciousness research. In this paper, I will argue that this dissonance in the literature can be explained by differentiating between infallible and informative introspective beliefs. I will argue that the latter are formed similarly to beliefs about the external world, and are therefore susceptible to similar success and failure conditions. Understanding introspection as belief-like will help to locate possible sources of error in regular as well as in pathological cases, carrying relevant implications for the relationship between experience, belief, and delusion.
Evaluation of hybrid solvents featuring choline chloride-based deep eutectic solvents and ethanol as extractants for the liquid–liquid extraction of benzene from n-hexane: towards a green and sustainable paradigm
Authors: Usman Mohammed Awwalu , Fagoroye Olumide Kayode , Ajayi Toluwalase Olufunmilayo 
Published: September 2021

AbstractDeep eutectic solvents (DESs) have high viscosities, but known to be mitigated by addition of suitable co-solvent. The effect of such co-solvent on the extraction efficiency of the hybrid solvent is hardly known. This study examined the effect of ethanol on three choline chloride-based DESs (glyceline, reline, and ethaline) by mixing each in turn with ethanol in various volume proportions. The hybrid solvents were evaluated for the extraction of benzene from n-hexane. Pseudo-ternary liquid–liquid equilibrium data were obtained using the refractive index method at 303 K and 1 atm for the systems, n-hexane (1) + benzene (2) + hybrid solvent (glyceline/ethanol, ethaline/ethanol, reline/ethanol) (3), and used to evaluate distribution coefficient (D) and selectivity (S). Furthermore, the physicochemical properties of the hybrid solvents were also determined. The results indicate increase in selectivity with increasing ethanol addition up to 50% and decrease with further addition. All hybrid solvents with 50% ethanol outperform sulfolane and are suitable replacement for same as green and sustainable extractant for aromatics from aliphatics. The glyceline + 50% ethanol emerged the overall best with 49.73% elevation in selectivity and 41.15% reduction in viscosity relative to the neat glyceline. The finding of this study is expected to fillip the drive for paradigm shift in petrochemical industries.
Optimization of tensile strength of PLA/clay/rice husk composites using Box-Behnken design
Authors: Yiga Vianney Andrew , Lubwama Michael , Pagel Sinja , Olupot Peter Wilberforce , Benz Johannes , Bonten Christian 
Published: September 2021

AbstractIt is extremely important to save costs and time while enhancing accuracy in experimentation. However, no study has utilized response surface methodology (RSM) to obtain the effects of independent parameters on properties of PLA/clay/rice husk composites. This study focused on optimization of tensile strength of fiber-reinforced polylactic acid (PLA) composites. RSM using Box-Behnken design (BBD) was used to determine optimum blending parameters of the developed composites. Fiber-reinforced PLA composites were prepared using compression molding. Rice husk fiber and clay filler were used to enhance tensile properties of PLA. Five factors, namely, clay filler loading (1 − 5 wt.%), rice husk fiber loading (10 − 30 wt.%), alkali concentration (0 − 4 wt.%), rice husk variety (K85, K98), and alkali type (NaOH, Mg(OH)2) were varied with 68 individual experiments. Tensile tests were carried out according to ASTM D638 standards. ANOVA results revealed that the quadratic models best fit the tensile strength response, with filler loading and fiber loading factors as the most significant model terms. Interaction effects were more predominant than linear and quadratic effects. The developed models used to determine maximum tensile strengths of PLA/clay/rice husk composites were in close agreement with experimental findings (R2 values of 0.9635, 0.9624, 0.9789, and 0.9731 for NaOH-modified K85 rice husks, Mg(OH)2-modified K85 rice husks, NaOH-modified K98 rice husks, and Mg(OH)2-modified K98 rice husks respectively). Individual optimal conditions were used to predict maximum tensile strengths in each set of developed composites. The predicted tensile strengths were 32.09 MPa, 33.69 MPa, 32.47 MPa, and 32.75 MPa for PLA/clay composites loaded with NaOH-modified K85 rice husks, Mg(OH)2-modified K85 rice husks, NaOH-modified K98 rice husks, and Mg(OH)2-modified K98 rice husks, respectively, which were very close to the obtained experimental values of 31.73 MPa, 33.06 MPa, 32.02 MPa, and 31.86 MPa respectively.
Being Evangelical is Complicated: How Students’ Identities and Experiences Moderate Their Perceptions of Campus Climate
Authors: Riggers-Piehl Tiffani , Dahl Laura S. , Staples B. Ashley , Selznick Benjamin S. , Mayhew Matthew J. , Rockenbach Alyssa N. 
Published: September 2021

Background Evangelical Christian college students navigate campus buoyed by Christian privilege but may encounter silencing or othering tied to their religious beliefs, a feeling of incompatibility with their campus climate, and conflations of their religious and political beliefs that are inaccurate and discouraging. Unsupportive campus climates can discourage evangelical students from having productive exchanges across difference and deepening their own worldview commitments, which is concerning due to their general lack of interfaith participation that challenges stereotypes and unnuanced assumptions. Purpose This study explores how evangelical Christians perceive their campus climates and whether those perceptions are different based on other social identity intersections with gender, race, sexuality, and political affiliation. In addition to individual characteristics, how the campus environment and various curricular and co-curricular experiences moderate evangelical students’ perceptions of the worldview climate is examined. Methods A sample of 1235 evangelical college students was examined via means, standard deviations, and ranges for six campus climate measures, one-way ANOVAs to examine whether those measures differed by different identity dimensions, and then multilevel modeling to better understand the role of campus experiences in evangelicals’ perceptions of their campus climate. Results Evangelical students’ campus climate perceptions were generally positive; more provocative encounters were reported by women than men and evangelical Asian students indicated more divisiveness, more insensitivity, and less space for support than their peers. Political affiliation also revealed several significant differences in perceived campus climate. Interfaith engagement through pre-college activities, formal and informal activities, and friendships were connected to perceptions of campus climate, with those reporting more engagement being more likely to have productive encounters across difference and to report insensitivity or divisiveness. Religious affiliation was the most significant institutional characteristic. Conclusions and Implications This study illuminates how collegiate experiences and campus environments exacerbate or attenuate evangelical Christian students’ perceptions of the campus climate, and the results indicate that effective teaching practices where true interfaith experiences happen and that create inclusive space for evangelical students in the classroom are key to fostering development, especially in light of the social status ambiguity evangelical college students may be experiencing during their college years.
Evaluation and characterisation of metal sorption and retention by drinking water treatment residuals (WTRs) for environmental remediation
Authors: Arab K. A. H. , Thompson D. F. , Oliver I. W. 
Published: September 2021

AbstractDrinking water treatment residuals (WTRs) are wastes generated when water is clarified using aluminium or iron salts. They are increasingly being considered as a resource with potential reuse value, particularly in relation to soil or water remediation. Adsorption–desorption capacity of Al-based (Al-WTR) and Fe-based (Fe-WTR) materials was investigated here for Pb and Zn, both separately and in combination, as a preliminary trial to assess their utility for immobilising contaminant metals in environmental settings. Maximum adsorption observed at the highest test solution concentrations imposed (400 mg/L) was similar for each WTR type and each metal; Al-WTRs sorbed Zn at 3579 mg/kg and Pb at 4025 mg/kg, while Fe-WTRs sorbed Zn and Pb at 3579 mg/kg and 3980 mg/kg, respectively. Equilibrium adsorption data were tested against Langmuir, Freundlich, and Temkin isotherm models, which indicated a substantial reserve capacity for further Pb sorption and that multiple sorption mechanisms were involved. Subsequent desorption tests with 0.001 M CaCl2 solution indicated that > 89.76% of sorbed metal remained sorbed. When in solution together, both metals were strongly sorbed by WTRs, but a slight preference for Pb was observed. The results indicate that WTRs would be very effective immobilising agents if placed in contaminated soil or if used to treat contaminated waters.
On the Maurer-Cartan simplicial set of a complete curved $$A_\infty $$-algebra
Authors: de Kleijn Niek , Wierstra Felix 
Published: September 2021

AbstractIn this paper, we develop the$$A_\infty $$A∞-analog of the Maurer-Cartan simplicial set associated to an$$L_\infty $$L∞-algebra and show how we can use this to study the deformation theory of$$\infty $$∞-morphisms of algebras over non-symmetric operads. More precisely, we first recall and prove some of the main properties of$$A_\infty $$A∞-algebras like the Maurer-Cartan equation and twist. One of our main innovations here is the emphasis on the importance of the shuffle product. Then, we define a functor from the category of complete (curved)$$A_\infty $$A∞-algebras to simplicial sets, which sends a complete curved$$A_\infty $$A∞-algebra to the associated simplicial set of Maurer-Cartan elements. This functor has the property that it gives a Kan complex. In all of this, we do not require any assumptions on the field we are working over. We also show that this functor can be used to study deformation problems over a field of characteristic greater than or equal to 0. As a specific example of such a deformation problem, we study the deformation theory of$$\infty $$∞-morphisms of algebras over non-symmetric operads.