This article examines how Native Nations and institutions have been affected by a new directive in the revised NAGPRA regulations, the duty of care provision (43 CFR 10.1(d)), with a focus on the care of Indigenous Ancestral remains and cultural items. The Native Nation’s perspective is provided by the Osage Nation and the Eastern Band of Cherokee Indians. The South Carolina Institute of Archaeology and Anthropology; the University of Tennessee, Knoxville; the Illinois State Museum; and Indiana University share their viewpoints as institutions that house Indigenous Ancestral remains, cultural items, and archaeological collections and describe the initial impacts of the revised legislation on their programs. There are several key takeaways of its initial effects, including (1) an increased burden to Native Nations, given the substantial uptick in requests for consultation linked to new requirements for consent and the revised definitions of cultural items and research (although the end result of more consultations leading to repatriations is desired), (2) a disconnect between Native Nations and institutions regarding cultural item identification, (3) a strengthening of existing NAGPRA-related institutional policies and procedures, and (4) an emphasis on the importance of consultation between institutions and Native Nations to facilitate repatriation.

The drivers of the unsustainable consumption of animal products have been researched, but, to date, no studies have specifically examined the interplay between perceptions of biodiversity loss consequences, beliefs in its existence and significance and the consumption of animal skin and fur products. We explore how people’s perceived consequences of biodiversity loss are associated with their consumption preferences and behaviours related to animal fur/skin products in varying scenarios of biodiversity loss beliefs. Applying Bayesian mindsponge framework analytics to a dataset of 535 Vietnamese urban residents (with 85.05% holding an undergraduate or higher degree), we found that, for people viewing biodiversity loss as real and significant, perceived consequences of biodiversity loss were negatively associated with the preference for animal skin/fur products. Conversely, when they viewed biodiversity loss as unreal or real but insignificant, the association was the reverse. Regarding the ownership of skin/fur products, among those who considered biodiversity loss insignificant, perceived consequences of biodiversity loss were correlated with owning more such products. However, for individuals who saw biodiversity loss as a major issue or denied its existence, ownership remained unaffected by perceptions of its consequences. These findings underscore the need for interdisciplinary research in sociocultural and environmental psychology to improve our understanding of the human–nature relationship and inform evidence-based policies integrating science and humanistic values.

Understanding how bubbles on a substrate respond to ultrasound is crucial for applications from industrial cleaning to biomedical treatments. Under ultrasonic excitation, bubbles can undergo shape deformations due to Faraday instability, periodically producing high-speed jets that may cause damage. While recent studies have begun to elucidate this behaviour for free bubbles, the dynamics of wall-attached bubbles is still largely unexplored. In particular, the selection and evolution of non-spherical modes in these bounded systems have not previously been resolved in three dimensions, and the resulting jetting dynamics has yet to be compared with that observed in free bubbles. In this study, we investigate individual micrometric air bubbles in contact with a rigid substrate and subjected to ultrasound. We introduce a novel dual-view imaging technique that combines top-view bright-field microscopy with side-view phase-contrast X-ray imaging, enabling visualisation of bubble shape evolution from two orthogonal perspectives. This set-up reveals the progression of bubble shape through four distinct dynamic regimes: purely spherical oscillations, onset of harmonic axisymmetric meniscus waves, emergence of half-harmonic axisymmetric Faraday waves and the superposition of half-harmonic sectoral Faraday waves. This stepwise evolution contrasts with the behaviour of free bubbles, which exhibit their ultimate Faraday wave pattern immediately upon instability onset. For the substrate chosen, the resulting shape-mode spectrum appears to be degenerate and exhibits a continuous range of shape mode degrees, in line with our theoretical predictions derived from kinematic arguments. While free bubbles also display a degenerate spectrum, their shape mode degrees remain discrete, constrained by the bubble spherical periodicity. Experimentally measured ultrasound pressure thresholds for the onset of Faraday instability agree well with classical interface stability theory, modified to incorporate the effects of a rigid boundary. Complementary three-dimensional boundary element simulations of bubble shape evolution align closely with experimental observations, validating this method’s predictive capability. Finally, we determine the acceleration threshold at which shape mode lobes initiate cyclic jetting. Unlike free bubbles, jetting in wall-attached bubbles consistently emerges from the side not restricted by the substrate.

Some of the most accessible sources for African maps are the new atlases which have been published since World War II. If we interpret the term “atlas” loosely so as to include any assemblage of maps which can be placed on a book shelf, the range of subject materials covered is surprisingly large -- from agriculture to zoogeography. But despite the wealth of data which is presented in convenient map form, it is difficult to obtain information about atlases and their contents. The purpose of this article is to provide a guide to the kinds of information which is available, and a list of atlases and other publications with African maps which have appeared since 1945.

The analysis is based mainly upon atlases examined at the Map Division in the Library of Congress, at the American Geographical Society in New York, and at the University of California, Los Angeles. A few additional atlases were obtained through inter-library loan. Mrs. Clara Egli LeGear, of the Map Division, Library of Congress, provided especially helpful bibliographic aid at the early stages of the survey. This article is a part of a research project supported by the African Studies Center at U. C. L. A. More extension listings of African maps and atlases are in preparation; the authors would therefore welcome comments upon errors or omissions which may be noted in the article.