UNASSIGNED: Next-generation sequencing technology can now be used to sequence historical specimens from natural history collections, an approach referred to as museomics. The museomics allows obtaining molecular data from old museum-preserved specimens, a resource of biomolecules largely underexploited despite the fact that these specimens are often unique samples of nomenclatural types that can be crucial for resolving scientific questions. Despite recent technical progress, cricket mitogenomes are still scarce in the databases, with only a handful of new ones generated each year from freshly collected material.
UNASSIGNED: In this study, we used the genome skimming method to sequence and assemble three new complete mitogenomes representing two tribes of the cricket subfamily Eneopterinae: two were obtained from old, historical type material of Xenogryllus lamottei (68 years old) and X. maniema (80 years old), the third one from a freshly collected specimen of Nisitrus vittatus. We compared their genome organization and base composition, and reconstructed the molecular phylogeny of the family Gryllidae.
UNASSIGNED: Our study not only confirmed that the genome skimming method used by next generation sequencing allows us to efficiently obtain the whole mitogenome from dry-pinned historical specimens, but we also confirmed how promising it is for large-scale comparative studies of mitogenomes using resources from natural history collections. Used in a phylogenetic context the new mitogenomes attest that the mitogenomic data contain valuable information and also strongly support phylogenetic relationships at multiple time scales.

Museums increasingly rely on cutting-edge digital technologies to attract visitors. Understanding the intricate factors influencing user acceptance of these technologies is, however, crucial for their effective use. This study therefore proposes a model, grounded in the technology acceptance model, to investigate user acceptance of online virtual reality (VR) museum exhibitions. Leveraging the online VR exhibition at Liangzhu Museum as a case study, data were collected from 313 participants and analyzed using partial least squares structural equation modeling (PLS-SEM) with Smart PLS. Semi-structured interviews with 15 individuals were conducted to complement the quantitative findings. The results reveal that factors such as interactivity, immersion, and presence positively influenced users\' intrinsic technological beliefs (perceived ease of use, perceived enjoyment, and perceived usefulness), ultimately affecting their willingness to use and intention to visit on-site. Notably, immersion had a direct positive effect on perceived usefulness. There is a pressing need to leverage digital and web technologies to cater to the increasingly complex and diverse needs of online visitors, and emphasizing navigational performance in online VR exhibitions is also paramount for enhancing the overall user experience.

Gene expression is regulated by changes in chromatin architecture intrinsic to cellular differentiation and as an active response to environmental stimuli. Chromatin dynamics are a major driver of phenotypic diversity, regulation of development, and manifestation of disease. Remarkably, we know little about the evolutionary dynamics of chromatin reorganisation through time, data essential to characterise the impact of environmental stress during the ongoing biodiversity extinction crisis (20th-21st century). Linking the disparate fields of chromatin biology and museum science through their common use of the preservative formaldehyde (a constituent of formalin), we have generated historical chromatin profiles in museum specimens up to 117 years old. Historical chromatin profiles are reproducible, tissue-specific, sex-specific, and environmental condition-dependent in vertebrate specimens. Additionally, we show that over-fixation modulates differential chromatin accessibility to enable semi-quantitative estimates of relative gene expression in vertebrates and a yeast model. Our approach transforms formalin-fixed biological collections into an accurate, comprehensive, and global record of environmental impact on gene expression and phenotype.

Our objective is to scaffold the natural behaviors that support scientific thinking and STEM learning in children through museum exhibit design and development. Here, we describe a collaborative research-to-practice initiative called \"Designing Museum Exhibits to Support the Development Scientific Thinking in Informal Learning Environments: A University-Museum-Community Partnership,\" in which we document natural behavior in the context of children\'s informal learning environments and detail our plans to translate our findings into exhibit development. This initiative is part of a long-standing university (UT Austin, Center for Applied Cognitive Science), museum (Thinkery-Austin Children\'s Museum), and community (Austin\'s Early Learner Community) partnership called Thinkery Connect. Our first aim here is to review best practices in STEM exhibit design that fosters scientific thinking. We will then describe the design of a study on exhibit signage to promote scientific thinking development. We will also discuss our plans to develop and evaluate exhibit signage in context. Our long-term objective is to deepen engagement in activities that build scientific thinking for visitors at children\'s museums like Thinkery, at home, and in the community.

Informal educational opportunities such as visits to museums, aquariums, and zoos support children\'s semantic knowledge gain. Most research focuses on outcomes of direct learning, such as factual recall. The extent to which children engage in productive memory processes such as inferential reasoning and self-derivation through memory integration is not yet well understood. We assessed 8- to 9-year-old children\'s performance on tests of direct (e.g., fact recall) and productive (e.g., inference, integration) learning from virtual museum exhibits. We also examined the influence of children\'s involvement on learning outcomes, through measuring within-exhibit dyadic conversation and post-exhibit reflection. Children performed successfully on all three tests of learning; fact recall was the most accessible and self-derivation was the least. Both within and post-exhibit involvement predicted overall learning outcomes; within-exhibit conversational phrases predicted self-derivation performance in particular. The current work provides novel insights into mechanisms that support children\'s informal learning.

In this paper, we reflect on \'new commons\' theory and elaborate on the ontology of memory institutions with the aim to develop a comprehensive conceptual framework for \'commons-oriented\' GLAMs (Galleries, Libraries, Archives and Museums). In doing so, we propose an alternative for governing and managing cultural heritage against a backdrop of limited public funding and pressures for developing memory institutions into more inclusive, participatory and \'entrepreneurial\' organisations. Our theoretical analysis is grounded in the review of the extant literature, including both the \'Ostromian\' and \'Autonomist\' schools of thought, drawing particularly on the new commons (urban, digital, cultural/heritage commons) to inform our framework. The conceptual schema we present here is adapted to fit with the idiosyncrasies of the sector, describing the functioning of commoning practices in GLAMs. Such a framework is critical for navigating future research and devising workable solutions to address current challenges for memory institutions in Europe.
Over the last decades, GLAMs (Galleries, Libraries, Archives and Museums) have faced several challenges, including the limitation of public funding due to the global economic crisis of 2008, the need to keep up with digitalization trends in order to make collections accessible to larger audiences, the implications of the COVID-19 pandemic which impacted income sources such as visitor revenues, licensing, donations, endowments and sponsorships. All these challenges require GLAMs to be proactive in adopting innovative strategies, collaborating with other institutions, leveraging partnerships, and seeking sustainable funding models to address their unique and evolving needs. In this paper, we explore the potentiality of GLAMs to operate as commons, towards ensuring their vibrancy, sustainability and resilience, while meeting broader societal needs. The commons constitute a mode of resource management (in our case cultural ones) through which a specific community (instead of a state body or actors of the market) is responsible for the exploitation and managmenet (or, in several cases also the production) of a resource under inclusive and democratic principles. In this way, the commons constitute of i) a (set of) commons pool resource(s), including a diverse range of material and intangible resources, ii) a group/ community that appropriate, use, manage and take care of the resources, iii) a governance/ management framework established through mixes of official and informal sets of rules, decision-making processes, governance arrangements.

Museum genomics provide an opportunity to investigate population demographics of extinct species, especially valuable when research prior to extinction was minimal. The Bachman\'s warbler (Vermivora bachmanii) is hypothesized to have gone extinct due to loss of its specialized habitat. However, little is known about other potential contributing factors such as natural rarity or changes to connectivity following habitat fragmentation. We examined mitochondrial DNA (mtDNA) and genome-wide SNPs using specimens collected from breeding and migration sites across the range of the Bachman\'s warbler. We found no signals of strong population structuring across the breeding range of Bachman\'s warblers in both mtDNA and genome-wide SNPs. Thus, long-term population isolation did not appear to be a significant contributor to the extinction of the Bachman\'s warbler. Instead, our findings support the theory that Bachman\'s warblers underwent a rapid decline likely driven by habitat destruction, which may have been exacerbated by the natural rarity, habitat specificity and low genetic diversity of the species.

Interview with Christine Strullu-Derrien, who studies the origin and early evolution of microorganisms, as well as their interactions with plants, at the Natural History Museum in London and the National Museum of Natural History in Paris.

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The key building blocks for life on Mars could be preserved within potentially habitable paleo-depositional settings with their detection possible by utilizing mid-infrared spectroscopy; however, a definite identification and confirmation of organic or even biological origin will require the samples to be returned to Earth. In the present study, Fourier-transform infrared (FTIR) spectroscopic techniques were used to characterize both mineralogical and organic materials within Mars dust simulant JSC Mars-1 and ancient Antarctic cyanobacterial microbial mats from 1901 to 1904 Discovery Expedition. When FTIR spectroscopy is applied to cyanobacterial microbial mat communities, the resulting spectra will reflect the average biochemical composition of the mats rather than taxa-specific spectral patterns of the individual organisms and can thus be considered as a total chemical analysis of the mat colony. This study also highlights the potential difficulties in the detection of these communities on Mars and which spectral biosignatures will be most detectable within geological substrates. Through the creation and analysis of a suite of dried microbial mat material and Martian dust simulant mixtures, the spectral signatures and wavenumber positions of CHx aliphatic hydrocarbons and the C-O and O-H bands of polysaccharides remained detectable and may be detectable within sample mixtures obtained through Mars Sample Return activities.