Recent decades have seen a major rise in demand for daycare services for children aged 0 to 3 years, and this has increased research interest in the child-professional caregiver relationship at daycare centers: How does the relationship between children and their new caregivers develop over time? How long does it take for children to settle in at daycare? What variables can influence the settling-in process? These questions are all of the utmost salience and bear crucial implications for children, parents, and daycare practitioners. In this study, we set out to explore the relationship between infants and their new caregivers over the first two months in daycare, using the Professional Caregiver Attachment Diary. The study involved seven Italian daycare centres and 55 professional caregivers, who observed 148 children (M=17.8 months). The children's attachment behaviors were assessed at three time-points: when the children started attending daycare (T1), one month later (T2), and two months later (T3). We found that positive attachment behaviors (Secure and Non-Distressed) increased over time, whereas insecure behaviors (Avoidant and Resistant) decreased. Most of the change took place during the first month. Furthermore, children who had attended more daycare more regularly (with fewer days of absence) displayed fewer avoidant behaviors and a more rapid decrease in resistant behaviors than did children who were absent more frequently. The findings suggest that the PCAD may be usefully deployed to observe and analyze children while they are settling into a new daycare setting, especially in relation to their exploratory behaviors.
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http://dx.doi.org/10.1016/j.infbeh.2023.101919 | DOI Listing |
Math Biosci
December 2024
School of Mathematics and Statistics, University of Melbourne, Melbourne, Australia. Electronic address:
A model using the rigid body multi-cellular framework (RBMCF) is implemented to investigate the mechanisms of buckling of an epithelial monolayer. Specifically, the deformation of a monolayer of epithelial cells which are attached to a basement membrane and the surrounding stromal tissue. The epithelial monolayer , supporting basement membrane and stromal tissue are modelled using two separate vertex dynamics models (one for the epithelial monolayer layer and one for the basement membrane and stromal tissue combined) and interactions between the two are considered using the RBMCF to ensure biologically realistic interactions.
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November 2024
Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, E18016 Granada, Spain.
Cornea tissue engineering is strictly dependent on the development of biomaterials that fulfill the strict biocompatibility, biomechanical, and optical requirements of this organ. In this work, we generated novel biomaterials from the squid gladius (SG), and their application in cornea tissue engineering was evaluated. Results revealed that the native SG (N-SG) was biocompatible in laboratory animals, although a local inflammatory reaction was driven by the material.
View Article and Find Full Text PDFBiomimetics (Basel)
December 2024
Lab of Locomotion Bioinspiration and Intelligent Robots, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
In recent years, bioinspired insect flight has become a prominent research area, with a particular focus on beetle-inspired aerial vehicles. Studying the unique flight mechanisms and structural characteristics of beetles has significant implications for the optimization of biomimetic flying devices. Among beetles, (rhinoceros beetle) exhibits a distinct wing deployment-flight-retraction sequence, whereby the interaction between the hindwings and protective elytra contributes to lift generation and maintenance.
View Article and Find Full Text PDFBiomimetics (Basel)
December 2024
College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
High-voltage overhead power lines serve as the carrier of power transmission and are crucial to the stable operation of the power system. Therefore, it is particularly important to detect and remove foreign objects attached to transmission lines, as soon as possible. In this context, the widespread promotion and application of smart robots in the power industry can help address the increasingly complex challenges faced by the industry and ensure the efficient, economical, and safe operation of the power grid system.
View Article and Find Full Text PDFTrauma Violence Abuse
December 2024
This systematic review synthesized evidence from parental child maltreatment (CM) interventions by reviewing intervention evaluation studies on potentially effective intervention components and delivery techniques as well as identifying differences in the presence of these components based on maltreatment type. Quantitative intervention evaluations with an explicit parental CM outcome published in a peer-reviewed journal were considered for inclusion. This resulted in 60 final studies for the systematic review.
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