This study examined the development of an understanding of authenticity among 112 children (preschoolers, kindergarten, 1(st)-graders, and 4(th)-graders) and 119 college students. Participants were presented with pairs of photographs depicting authentic and non-authentic objects and asked to pick which one belongs in a museum and which one they would want to have. Results suggest that both children and adults recognize the special nature of authentic objects by reporting that they belong in a museum. However, this belief broadens with age, at first just for famous associations (preschool), then also for original creations (kindergarten), and finally for personal associations as well (4(th) grade). At all ages, an object's authentic nature is distinct from its desirability. Thus, from an early age, children appear to understand that the historical path of an authentic object affects its nature. This work demonstrates the importance of non-obvious properties in children's concepts. For preschool as well as older children, history (a non-visible property) adds meaning beyond the material or functional worth of an object.
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http://dx.doi.org/10.1016/j.cogdev.2009.06.003 | DOI Listing |
Fungal Biol
February 2025
School of Agricultural and Biological Engineering, Longdong University, Qingyang, 745000, China; Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration, Longdong University, Qingyang, 745000, China.
The root of Angelica sinensis (Oliv.) Diels (Ang) is a bulk Chinese herbal medicine, and the microecological regulation is a sustainable means to enhance its quality. In this study, Angs at five bases (LZ, XZ, QS, PM, MZC) in Minxian County, Gansu Province were taken as the research objects.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, China.
Anticounterfeiting technologies meet challenges in the Internet of Things era due to the rapidly growing volume of objects, their frequent connection with humans, and the accelerated advance of counterfeiting/cracking techniques. Here, we, inspired by biological fingerprints, present a simple anticounterfeiting system based on perovskite quantum dot (PQD) fingerprint physical unclonable function (FPUF) by cooperatively utilizing the spontaneous-phase separation of polymers and selective in situ synthesis PQDs as an entropy source. The FPUFs offer red, green, and blue full-color fingerprint identifiers and random three-dimensional (3D) morphology, which extends binary to multivalued encoding by tuning the perovskite and polymer components, enabling a high encoding capacity (about 10, far surpassing that of biometric fingerprints).
View Article and Find Full Text PDFSci Rep
January 2025
Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
Alzheimer's disease (AD) poses a global health challenge, demanding innovative approaches for effective treatments. Clerodendrum infortunatum Linn. (Lamiaceae) is a shrub traditionally used as a medicinal plant to treat inflammation, skin diseases, and bronchitis.
View Article and Find Full Text PDFTalanta
January 2025
Instituto de Historia (IH-CCHS), CSIC, C/ Albasanz 26-28, 28037, Madrid, Spain. Electronic address:
Analysis of glass-based artworks is important for authentication purposes. In recent years, there have been rapid advancements and improvements in the characterization of glass objects using different analytical approaches. The present study presents an interdisciplinary and multi-analytical authentication approach that provides useful tools and markers to unmask possible imitations, counterfeiting, and forgeries in Cultural Heritage glass beads by comparing the composition of historical and modern glass beads.
View Article and Find Full Text PDFJ Phys Chem Lett
January 2025
Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, China.
The rise of big data and the internet of things has driven the demand for multimodal sensing and high-efficiency low-latency processing. Inspired by the human sensory system, we present a multifunctional optoelectronic-memristor-based reservoir computing (OM-RC) system by utilizing a CuSCN/PbS quantum dots (QDs) heterojunction. The OM-RC system exhibits volatile and nonlinear responses to electrical signals and wide-spectrum optical stimuli covering ultraviolet, visible, and near-infrared (NIR) regions, enabling multitask processing of dynamic signals.
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