Τετάρτη 11 Μαΐου 2022

The role of the classroom learning environment in students’ mathematics anxiety: A scoping review

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Abstract

Background

Math anxiety is a common experience that interferes with learning and achievement in mathematics. Considering that mathematics learning mostly takes place within the classroom, it is critical to examine how math anxiety develops in this context.

Aims

The purpose of the current scoping review was to identify classroom-learning environment factors associated with math anxiety in elementary and high school students.

Sample(s)

Out of an initial sample of 3011 studies, 28 were eligible for inclusion.

Methods

Data on author(s), publication year, and study location; sample demographics; classroom variables; intervention details (if applicable); measures; and key results were extracted from articles.

Results

Numerous protective and vulnerability factors were identified.

Conclusions

Directions for future research and methodological implications were explored.

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Derivation of hormone-responsive human endometrial organoids and stromal cells from cryopreserved biopsies

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Publication date: Available online 11 May 2022

Source: Experimental Cell Research

Author(s): Heidar Heidari-Khoei, Fereshteh Esfandiari, Ashraf Moini, Simin Yari, Maryam Saber, Marefat Ghaffari Novin, Abbas Piryaei, Hossein Baharvand

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VITOM-3D assisted paramedian forehead flap for nasal reconstruction

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Publication date: Available online 10 May 2022

Source: American Journal of Otolaryngology

Author(s): Andrea Achena, Angelo Placentino, Niccolò Mevio, Francesco Pilolli, Luca Roncoroni, Marco Borin, Gabriella Mantini, Giorgio Luigi Ormellese, Alberto Giulio Dragonetti

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Correction to: Severe Dysbiosis and Specific Haemophilus and Neisseria Signatures as Hallmarks of the Oropharyngeal Microbiome in Critically Ill Coronavirus Disease 2019 (COVID-19) Patients

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Several errors appeared in supplementary data for the corrected proof publication of this article (de Castilhos J, Zamir E, Hippchen T, et al. Severe Dysbiosis and Specific Haemophilus and Neisseria Signatures as Hallmarks of the Oropharyngeal Microbiome in Critically Ill Coronavirus Disease 2019 [COVID-19] Patients. Clin Infect Dis; https://doi.org/10.1093/cid/ciab902).
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Antibody response of heterologous vs homologous mRNA vaccine boosters against the SARS-CoV-2 Omicron variant: interim results from the PRIBIVAC study, A Randomized Clinical Trial

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Abstract
Background
Waning antibody levels post-vaccination and the emergence of variants of concern (VOCs) capable of evading protective immunity has raised the need for booster vaccinations. However, which combination of COVID-19 vaccines offers the strongest immune response against Omicron variant is unknown.
Methods
This randomized, subject-blinded, controlled trial assessed the reactogenicity and immunogenicity of different COVID-19 vaccine booster combinations. 100 BNT162b2-vaccinated individuals were enrolled and randomized 1: 1 to either homologous (BNT162b2 + BNT162b2 + BNT162b2; 'BBB') or heterologous mRNA booster vaccine (BNT162b2 + BNT162b2 + mRNA-1273; 'BBM'). Primary endpoint was the level of neutralizing antibodies against SARS-CoV-2 wild-type and VOCs at Day 28.
Results
51 participants were allocated to BBB and 49 to BBM; 50 and 48 respectively were analyzed for safety and immunogenicity outcomes. At Day 28 post-boost, mean SARS-CoV-2 spike antibody titers were lower with BBB (22,382  IU/mL 95% CI, 18,210 to 27,517) vs BBM (29,751  IU/mL 95% CI, 25,281 to 35,011, p = 0.034) as was the median level of neutralizing antibodies: BBB 99.0% (IQR 97.9 to 99.3%) vs BBM 99.3% (IQR 98.8 to 99.5%, p = 0.021). On sub-group analysis, significant differences in mean spike antibody titer and live Omicron neutralization titer was only observed in older adults. Median surrogate neutralizing antibody level against all VOCs was also significantly higher with BBM in older adults, and against Omicron was BBB 72.8% (IQR 54.0 to 84.7%) vs BBM 84.3% (IQR 78.1 to 88.7%, p = 0.0073). Both vaccines were well tolerated.
Conclusions
Heterologous mRNA-1273 booster vaccination induced a stronger neutralizing response against the Omicron variant in older individuals compared with homologous BNT123b2.
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Possible mechanisms and biomarkers of resistance to vismodegib in SHH medulloblastoma

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National Council for Scientific and Technological Development10.13039/501100003593305647/2019-9201001/2014-4Children's Cancer InstituteWilliam Donald Nash Brain Tumour Research FellowshipBrain Tumour Foundation of Canada10.13039/501100000238Swifty Foundation10.13039/100017296North West Cancer Research10.13039/501100000357
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Analysis of fractured dental implant body from five different implant systems: a long-term retrospective study

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The aim of this study was to perform an analysis of the incidence of implant body fracture and to identify possible risk factors. A long-term follow-up retrospective evaluation of 3477 patients who received 8588 implants from five implant systems was performed. Overall, 2810 patients who received 7502 implants, with an average follow-up of 6.9 years, were included in the analysis. The overall body fracture rate was 0.49% (37/7502), among which 32.4% (12/37) were implants with a reduced diameter. (Source: International Journal of Oral and Maxillofacial Surgery)
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