This article develops an understanding of the agential role of boundary objects in generating and politicizing learning in organizations, as it emerges from the entangled actions of humans and non-humans. We offer two empirical vignettes in which middle managers seek to develop more sustainable ways of working. Informed by Foucault's writing on power, our work highlights how power relations enable and foreclose the affordances, or possibilities for action, associated with boundary objects. Our data demonstrate how this impacts the learning that emerges as boundary objects are configured and unraveled over time. In so doing, we illustrate how boundary objects are not fixed entities, but are mutable, relational, and politicized in nature. Connecting boundary objects to affordances within a Foucauldian perspective on power offers a more nuanced understanding of how 'the material' plays an agential role in consolidating and disrupting understandings in the accomplishment of learning.

This theoretical paper conceptualises the role of tourism providers in facilitating creative tourism experiences by focusing on their ingenious enterprise, which we argue can help capture the tourism potential of intangible archaeological heritage. Intangible archaeological heritage can be understood as knowledge emanating from actors' own interpretation of archaeological sites that have either become physically inaccessible or been destroyed since initial exploration. Archaeological heritage is often equated with tangibility, which results in an omission of experiences that intangible archaeological heritage can offer. By proposing a rethinking of the archaeological tourism framework, we argue that the touristic value of both tangible and intangible archaeological heritage is better realised and can be further utilised to study the easily overlooked aspect of providers' ingenuity. HIGHLIGHTS  Archaeological tourism fails to capture the intangibility of archaeological heritage  Creative tourism is proposed as a more suitable framework for archaeological tourism  Co-creation between tourists and providers is central to achieving creative tourism  A proposed framework underlines providers' creativity in delivering memorable experiences

Plesiosaurians are highly derived secondarily-adapted organisms (if fishes are primarily-adapted) with a long evolutionary history, and they are closely related with basal eosauropterygians. Attempts to reconstruct soft-tissue anatomy can be complicated due to the lack of extant closely-related species, thus various lines of evidence must be considered. This study aims to reconstruct the pectoral girdle myology of eosauropterygians. Information derived from the extant phylogenetic bracket method was not sufficient to clarify muscle attachments in the pectoral girdle of plesiosaurians. To correctly infer muscle homologies, the extant phylogenetic bracket information had to be complemented with developmental and osteological information, and osteological transformations had to be traced back to Permian basal neodiapsids. The reconstructed pectoral girdle musculature presented here is, thus, significantly different from previous attempts. As in secondarily-adapted aquatic modern analogues, several muscles atrophied (e.g., pectoralis, episternocleidomastoideus) and others specialized (e.g., coracobrachialis, clavodeltoideus) in order to attain a more influential role to the stringent conditions of subaquatic locomotion. The subcoracoscapularis, scapulodeltoideus, scapulohumeralis and supracoracoideus are inferred to be glenohumeral stabilizers. The clavodeltoideus acted as the main protractor muscle and the coracobrachialis as a major retractor muscle, possibly in conjunction with the latissimus dorsi. Several heads of the triceps possibly atrophied, as in whales, serving mainly as a cubital joint stabilizer. The trapezius, serratus and levator scapulae served as pectoral girdle stabilizers.

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O X Simpósio Ibérico Sobre a Bacia Hidrográfica do Rio Minho, organizado pelo Aquamuseu do Rio Minho/Câmara Municipal de Vila Nova de Cerveira e co-organizado pelo Centro Interdisciplinar de Investigação Marinha e Ambiental – Universidade do Porto, num contexto multidisciplinar, abordou temas que abrangeram áreas desde a geoquímica de sedimentos e formas erosivas do leito rochoso do rio Minho; as mudanças climáticas numa perspetiva da futura gestão da água e nos efeitos já evidentes ao nível das comunidades biológicas; importância da gestão dos recursos da pesca no rio Mouro pela monitorização e aplicação de regras específicas de exploração; diagnóstico e medidas em curso para a conservação das populações de peixes migradores; a ameaça dos poluentes emergentes; a divulgação de novos registos de invertebrados encontrados no rio Minho (abordagem taxonómica); evidências da colaboração entre pescadores e investigadores para um melhor conhecimento social da comunidade piscatória, da sua atividade e da sua contribuição para o processo de gestão; comunicação de ciência e educação ambiental. No âmbito da mesa-redonda (workshop), em modelo aberto à comunidade, onde participaram pescadores, foram apresentados resultados de trabalhos no âmbito do Conhecimento Ecológico Local (Etnobiologia), em que os próprios tiveram a oportunidade de manifestar as suas opiniões relacionadas com a atividade da pesca. Houve ainda oportunidade de entregar os prémios referentes ao concurso de ilustração científica “Rio Minho, Biodiversidade e Artes de Pesca”, cuja exposição completa esteve patente na Bienal de Cerveira.

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