e-Babylab: An open-source browser-based tool for unmoderated online developmental studies.

The COVID-19 pandemic massively changed the context and feasibility of developmental research. This new reality, as well as considerations about sample diversity and naturalistic settings for developmental research, highlights the need for solutions for online studies. In this article, we present e-Babylab, an open-source browser-based tool for unmoderated online studies targeted for young children and babies.

Lithium Vacancy-Tuned [CuO ] Sites for Selective CO Electroreduction to C Products.

Electrochemical CO reduction to valuable multi-carbon (C ) products is attractive but with poor selectivity and activity due to the low-efficient CC coupling. Herein, a lithium vacancy-tuned Li CuO with square-planar [CuO ] layers is developed via an electrochemical delithiation strategy. Density functional theory calculations reveal that the lithium vacancies (V ) lead to a shorter distance between adjacent [CuO ] layers and reduce the coordination number of Li around each Cu, featuring with a lower energy barrier for COCO coupling than pristine Li CuO without V .

Tablet assessment of word comprehension reveals coarse word representations in 18-⁠20-month-old toddlers.

The present study explores the viability of using tablets in assessing early word comprehension by means of a two-alternative forced-choice task. Forty-nine 18-20-month-old Norwegian toddlers performed a touch-based word recognition task, in which they were prompted to identify the labeled target out of two displayed items on a touchscreen tablet. In each trial, the distractor item was either semantically related (e.

Word learning from a tablet app: Toddlers perform better in a passive context.

In recent years, the popularity of tablets has skyrocketed and there has been an explosive growth in apps designed for children. Howhever, many of these apps are released without tests for their effectiveness. This is worrying given that the factors influencing children's learning from touchscreen devices need to be examined in detail.

A Bayesian-Inspired Item Response Theory-Based Framework to Produce Very Short Versions of MacArthur-Bates Communicative Development Inventories.

Purpose This study introduces a framework to produce very short versions of the MacArthur-Bates Communicative Development Inventories (CDIs) by combining the Bayesian-inspired approach introduced by Mayor and Mani (2019) with an item response theory-based computerized adaptive testing that adapts to the ability of each child, in line with Makransky et al. (2016). Method We evaluated the performance of our approach-dynamically selecting maximally informative words from the CDI and combining parental response with prior vocabulary data-by conducting real-data simulations using four CDI versions having varying sample sizes on Wordbank-the online repository of digitalized CDIs: American English (a very large data set), Danish (a large data set), Beijing Mandarin (a medium-sized data set), and Italian (a small data set).

n-Alkanethiols Directly Grown on a Bare Si(111) Surface: From Disordered to Ordered Transition.

We observed the growth phase transition of n-alkanethiols (AT), CH(CH)SH, n = 4-16, directly implanted on a bare Si(111) surface, forming an AT monolayer. These monolayers were characterized with static water-contact angle, high-resolution X-ray photoelectron spectroscopy, near-edge X-ray fine-structure spectroscopy, and grazing-angle reflection absorption Fourier-transform infrared spectroscopy. The integrated spectral results indicated that the implanted n-AT molecules formed a self-oriented and densely packed monolayer through formation of an S-Si bond.

Preparation and characterization of an ordered 1-dodecanethiol monolayer on bare Si(111) surface.

We have grown 1-dodecandthiol (DDT) monolayer on a bare Si(111) surface through ultraviolet-assisted photochemical reaction. The resulting monolayer was investigated by means of water contact angle measurement, synchrotron radiation-based high-resolution X-ray photoelectron spectroscopy, and polarization-dependent near-edge X-ray absorption fine structure spectroscopy. These combined probes for characterization reveal a hydrophobic ambient surface; the DDT was directly attached to Si through a Si-S bond, and the molecules formed an ordered monolayer with an average tilt angle of 57° of the alkyl chains relative to the substrate surface.

Personal protective equipment in health care: can online infection control courses transfer knowledge and improve proper selection and use?

We used observational evaluation to assess the ability of an online learning course to effectively transfer knowledge on personal protective equipment (PPE) selection and removal. During orientations for new hospital staff, 117 participants applied either airborne, droplet, or contact precautions in mock scenarios. Postcourse, all 3 scenarios demonstrated improvement in PPE sequence scores (P = .

Glucose-6-phosphate dehydrogenase deficiency enhances enterovirus 71 infection.

Variations in the cellular microenvironment affect the host's susceptibility to pathogens. Using glucose-6-phosphate dehydrogenase (G6PD)-deficient fibroblasts as a model, this study demonstrated that the cellular redox status affects infectivity as well as the outcome of enterovirus 71 (EV71) infection. Compared with their normal counterparts, G6PD-deficient cells supported EV71 replication more efficiently and showed greater cytopathic effect and loss of viability.

E-learning of infection control: it's contagious.

This article outlines the steps taken to deliver standardized infection control and occupational health training to all healthcare workers across a Canadian health authority, using an online module developed by a multidisciplinary team. The course had to meet a diverse variety of learner needs, be relevant to day-to-day practice, be accessible, as well as fulfill healthcare guidelines for both infection control and occupational health. The course was designed to be interactive and uses a wide variety of techniques to engage the learner such as video clips describing use of personal protective equipment, and drop-and-drag technology.

The development of pyruvate carboxylase in rat liver mitochondria.

Enzymatic and immunologic methods were used in the studies of the development of mitochondrial pyruvate carboxylase (PC) in the perinatal rat liver. Rabbit antibodies to purified rat liver mitochondrial PC and to rat liver mitochondria were made. The monospecific activity of the anti-PC serum was demonstrated.