Mindfully Organizing Collective Teacher Efficacy: A Case Study Of Efficacious Educator Teams

Collective teacher efficacy (CTE) has well documented positive effects on student outcomes (Goddard et al., 2017), teacher job satisfaction (Buonomo et al., 2020), and educator persistence (Guidetti et al., 2018) in the face of challenging tasks. Characterized by the collective belief in the group’s capability to successfully accomplish tasks associated with their professional practice (Donohoo, 2018), what influences group efficacy belief formation remains an underdeveloped area of academic and practical understanding (Tschannen-Moran et al., 2014). To better understand the influences that shape CTE beliefs, and how those influences contribute to the known sources of CTE, a multiple–case study design was used to conduct focus group interviews with four collectively efficacious elementary school-based educator teams. Affirmed within the findings of this study, an a priori conceptual link between the enabling conditions of CTE (EC-CTE) (Donohoo et al., 2020) and the five mindful organizing behaviors (Weick & Sutcliffe, 2015) was developed. Additionally, heedful interrelating (Weick & Roberts, 1993) was found to have a potential mediating role between the EC-CTE and mindful organizing behaviors, while psychological safety (Edmondson, 1999) was found to have a potential moderating role among all the conditions. Given the findings of four dynamic and interacting conditions that influence CTE beliefs, a complex system of CTE conditions is conceptualized, explained, and situated within the relevant literature

q-Newton binomial: from Euler to Gauss

A counter-intuitive result of Gauss (formulae (1.6), (1.7) below) is made less mysterious by virtue of being generalized through the introduction of an additional parameter

Blind source separation for clutter and noise suppression in ultrasound imaging:review for different applications

Blind source separation (BSS) refers to a number of signal processing techniques that decompose a signal into several 'source' signals. In recent years, BSS is increasingly employed for the suppression of clutter and noise in ultrasonic imaging. In particular, its ability to separate sources based on measures of independence rather than their temporal or spatial frequency content makes BSS a powerful filtering tool for data in which the desired and undesired signals overlap in the spectral domain. The purpose of this work was to review the existing BSS methods and their potential in ultrasound imaging. Furthermore, we tested and compared the effectiveness of these techniques in the field of contrast-ultrasound super-resolution, contrast quantification, and speckle tracking. For all applications, this was done in silico, in vitro, and in vivo. We found that the critical step in BSS filtering is the identification of components containing the desired signal and highlighted the value of a priori domain knowledge to define effective criteria for signal component selection

The Recursive Record Semantics of Objects Revisited

In a call-by-value language, representing objects as recursive records requires using an unsafe fixpoint. We design, for a core language including extensible records, a type system which rules out unsafe recursion and still supports the reconstruction of a principal type. We illustrate the expressive power of this language with respect to object-oriented programming by introducing a sub-language for «mixin-based» programming

Pharmacogenomic associations of adverse drug reactions in asthma: systematic review and research prioritisation

A systematic review of pharmacogenomic studies capturing adverse drug reactions (ADRs) related to asthma medications was undertaken, and a survey of Pharmacogenomics in Childhood Asthma (PiCA) consortia members was conducted. Studies were eligible if genetic polymorphisms were compared with suspected ADR(s) in a patient with asthma, as either a primary or secondary outcome. Five studies met the inclusion criteria. The ADRs and polymorphisms identified were change in lung function tests (rs1042713), adrenal suppression (rs591118), and decreased bone mineral density (rs6461639) and accretion (rs9896933, rs2074439). Two of these polymorphisms were replicated within the paper, but none had external replication. Priorities from PiCA consortia members (representing 15 institution in eight countries) for future studies were tachycardia (SABA/LABA), adrenal suppression/crisis and growth suppression (corticosteroids), sleep/behaviour disturbances (leukotriene receptor antagonists), and nausea and vomiting (theophylline). Future pharmacogenomic studies in asthma should collect relevant ADR data as well as markers of efficacy