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Journal articles on the topic 'Keystone actors'

Author: Grafiati
Published: 30 June 2021
Last updated: 29 July 2025

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1

Österblom, Henrik, Jean-Baptiste Jouffray, Carl Folke, et al. "Transnational Corporations as ‘Keystone Actors’ in Marine Ecosystems." PLOS ONE 10, no. 5 (2015): e0127533. http://dx.doi.org/10.1371/journal.pone.0127533.

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2

Robertson, Jeandri. "Competition in Knowledge Ecosystems: A Theory Elaboration Approach Using a Case Study." Sustainability 12, no. 18 (2020): 7372. http://dx.doi.org/10.3390/su12187372.

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This paper explores how competition works in knowledge ecosystems, using a theory elaboration approach. With little research conducted in this area to date, three strategic streams of thought—resource-advantage theory, dynamic capabilities framework, and adaptive marketing capabilities perspective—are compared as a departing point and a frame of reference regarding the dynamics of competition. The streams of strategic thought all converge around the notion that organizations must constantly renew themselves to adapt and align to a fast-changing marketplace. The characteristics of knowledge eco
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Waller, Lisa, and Kerry McCallum. "Keystone media: The Australian and Indigenous affairs." Media International Australia 161, no. 1 (2016): 109–19. http://dx.doi.org/10.1177/1329878x16670816.

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This article conceptualises The Australian as the nation’s ‘keystone media’ on Indigenous affairs. Nielsen’s term ‘keystone media’ captures the critical importance of particular news outlets that play what he terms an outsize role in defining the state and structure of wider media and political environments. The article analyses the factors at play in The Australian’s sponsorship of a particular political agenda for this complex field of social policy. The argument is illustrated through an examination of Indigenous health coverage from 1988 to 2008, textual analysis of 137 columns written by
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Radigales, Jaume. "El naixement de la màscara chapliniana." Tripodos, no. 37 (June 4, 2025): 151–65. https://doi.org/10.51698/tripodos.2015.37.151-165.

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El 1914, la productora cinematográfica Keystone va exhibir als cinemes dels Estats Units les primeres pel·lícules protagonitzades (i poc després dirigides) per Charles Chaplin, que treballa en diverses pel·lícules slapstick sota la mirada de directors com Mack Sennett i actors i actrius com Ford Sterling, Mack Swain o Mabel Normand, entre d’altres. Els genuïns artífexs de la comèdia muda van ser els primers testimonis de l’evolució de Chaplin com a arquetipus, heretat de les màscares de la Commedia dell’Arte. A més, l’actor britànic començava a través de les seves primeres aparicions en pantal
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Cârstea, Andreea. "Fighting “The Ghosts of the Past”. Communism and Lustration as Key Topics of the First Romanian Electoral Debate (May 17, 1990) – A Review of Context and Discourse –." History of Communism in Europe 10 (2019): 91–118. http://dx.doi.org/10.5840/hce2019105.

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The general perception regarding the political discourse produced in Romania after 1989 is that the actors (politicians, media, and the public) prioritized a number of themes, which, in spite of their circumstantial dimensions, tended to become strongly established topics. From this perspective, transitional politics became a discursive locus for a number of issues, the actors repeatedly returning to the same ‘well‑worn roads’. Using as corpus samples of discourse from the first electoral campaign post‑1989, the study analyses if and how the controversial theme of the recent historical legacie
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Salento, Angelo. "Finanza, finanziarizzazione, neoliberismo." Quaderni di Sociologia 94 - LXVIII (2024): 43–63. https://doi.org/10.4000/135oj.

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This article discusses the relationship between neoliberalism and financialization. It is widely recognized that financial accumulation plays a central role in the neoliberal era, both because neoliberalism is fundamentally supported by financial actors and because its epistemology has operated as a lever for the expansion of financial transactions and the power of financial actors. However, the boundary between the two constructs remains uncertain, also because the expansion of financial accumulation is not exclusive to the neoliberal era. Therefore, in this contribution, after identifying th
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Hileman, Jacob, Ivan Kallstenius, Tiina Häyhä, Celinda Palm, and Sarah Cornell. "Keystone actors do not act alone: A business ecosystem perspective on sustainability in the global clothing industry." PLOS ONE 15, no. 10 (2020): e0241453. http://dx.doi.org/10.1371/journal.pone.0241453.

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Beirão, Gabriela, Lia Patrício, and Raymond P. Fisk. "Value cocreation in service ecosystems." Journal of Service Management 28, no. 2 (2017): 227–49. http://dx.doi.org/10.1108/josm-11-2015-0357.

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Purpose The purpose of this paper is to understand value cocreation in service ecosystems from a multilevel perspective, uncovering value cocreation factors and outcomes at the micro, meso, and macro levels. Design/methodology/approach A Grounded Theory approach based on semi-structured interviews is adopted. The sample design was defined to enable the ecosystem analysis at its different levels. At the macro level was the Portuguese Health Information ecosystem. Embedded meso level units of analysis comprised eight health care organizations. A total of 48 interviews with citizens and health ca
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Müller, Oliver. "Making Landscapes of (Be)Longing. Territorialization in the Context of the Eu Development Program Leader in North Rhine-Westphalia." European Countryside 13, no. 1 (2021): 1–21. http://dx.doi.org/10.2478/euco-2021-0001.

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Abstract The participation of residents in development processes is a keystone in current rural governance arrangements. The European Union’s rural development program LEADER is an example of this, as it requests local residents to take action in the development process. Similarly, participatory forms of natural and cultural heritage preservation have increased significantly with the aim of revitalizing the socioecological fabric of territories. Following the Anthropology of Policy, the study employs an ethnographic approach to analyze the effects of bio-cultural heritage preservation strategi
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Guo, Jie, and Harry Bouwman. "An ecosystem view on third party mobile payment providers: a case study of Alipay wallet." info 18, no. 5 (2016): 56–78. http://dx.doi.org/10.1108/info-01-2016-0003.

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Purpose To understand why the penetration of handset-based mobile payment in most countries is still low has been an important research topic for the last 15 years, and it has been analyzed from different perspectives. However, the analysis of a single aspect cannot provide a sophisticated answer to the complicated underlying question. The purpose of this paper is to understand how a relatively successful m-payment ecosystem is created and sustained through the coopetition of various actors. Design/methodology/approach To that end, the authors analyze the case of Alipay wallet, the m-payment s
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ELEVELD, EMILE, and BARTJAN PENNINK. "CHINESE INFLUENCES IN SIERRA LEONE: ALARMING OR INSPIRING?" Journal of Developmental Entrepreneurship 26, no. 01 (2021): 2150001. http://dx.doi.org/10.1142/s1084946721500011.

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The evolution of China’s international investment surge has been analyzed critically over the years, but we still know relatively little about its effect on developing countries. In turn, sub-Saharan African countries have a longstanding history of foreign influences that have had a deeply rooted effect on their people’s sentiment. This research continues to fill the gap regarding how Chinese investment decisions and the underlying intentions are perceived at the local level in Western Africa. For this research, the focus lies on entrepreneurs from Sierra Leone, given the country’s unique econ
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C., Mbira, and William H. A. "Searching for Ways of Settling Land Conflicts by Peaceful Means in Cameroon: A Critical Analysis of the Peacemaking Role of the ‘Land Consultative Board’." African Journal of Law, Political Research and Administration 7, no. 1 (2024): 117–34. http://dx.doi.org/10.52589/ajlpra-awglkl4j.

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The regulation of Land tenure systems is one of the main sources of conflicts in Africa and one of the continent’s most difficult realities to pin down. In its 1974 land reform, the Cameroonian legislature sought to strike a balance between traditional norms and modern instruments, between administrative, judicial and customary authorities, in order to establish an inclusive, democratic and peaceful system of land tenure. The establishment of the Land Consultative Board as the regulatory instrument the state planned to use in land matters was projected as the answer to this quest. While the or
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Paul-Gilloteaux, Perrine, Sébastien Tosi, Jean-Karim Hériché, et al. "Bioimage analysis workflows: community resources to navigate through a complex ecosystem." F1000Research 10 (April 26, 2021): 320. http://dx.doi.org/10.12688/f1000research.52569.1.

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Workflows are the keystone of bioimage analysis, and the NEUBIAS (Network of European BioImage AnalystS) community is trying to gather the actors of this field and organize the information around them. One of its most recent outputs is the opening of the F1000Research NEUBIAS gateway, whose main objective is to offer a channel of publication for bioimage analysis workflows and associated resources. In this paper we want to express some personal opinions and recommendations related to finding, handling and developing bioimage analysis workflows. The emergence of "big data” in bioimaging and res
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Hynds, Paul, Shane Regan, Luisa Andrade, et al. "Muddy Waters: Refining the Way Forward for the “Sustainability Science” of Socio-Hydrogeology." Water 10, no. 9 (2018): 1111. http://dx.doi.org/10.3390/w10091111.

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The trouble with groundwater is that despite its critical importance to global water supplies, it frequently attracts insufficient management attention relative to more visible surface water sources, irrespective of regional climate, socioeconomic profile, and regulatory environment. To this end, the recently defined sub-discipline of “socio-hydrogeology”, an extension of socio-hydrology, seeks to translate and exchange knowledge with and between non-expert end-users, in addition to involving non-expert opinion and experience in hydrogeological investigations, thus emphasising a “bottom-up” me
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15

Ficetola, Gentile Francesco, Alessia Guerrieri, Isabel Cantera, and Aurelie Bonin. "In silico assessment of 18S rDNA metabarcoding markers for the characterization of nematode communities." PLOS ONE 19, no. 4 (2024): e0298905. http://dx.doi.org/10.1371/journal.pone.0298905.

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Nematodes are keystone actors of soil, freshwater and marine ecosystems, but the complexity of morphological identification has limited broad-scale monitoring of nematode biodiversity. DNA metabarcoding is increasingly used to assess nematode diversity but requires universal primers with high taxonomic coverage and high taxonomic resolution. Several primers have been proposed for the metabarcoding of nematode diversity, many of which target the 18S rRNA gene. In silico analyses have a great potential to assess key parameters of primers, including taxonomic coverage, resolution and specificity.
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Nocco, Sara. "Cooperation and adaptation to climate change: the case of sea turtles from a transcale perspective." Central European Journal of Geography and Sustainable Development 7, no. 1 (2025): 82–93. https://doi.org/10.51865/cejgsd.2025.7.1.5.

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The rate of biodiversity loss (terrestrial and marine) is among the nine critical environmental thresholds associated with subsystems or biophysical systems of the planet, beyond which the Earth system would undergo unsustainable, abrupt and irreversible environmental changes. This factor is profoundly influenced by climate change and anthropic practices, elements that are leading to the reduction and fragmentation of habitats and the development of a series of important physiological repercussions within the species most affected by these phenomena. Among these, the so-called keystone species
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Nocco, Sara. "Cooperation and adaptation to climate change: the case of sea turtles from a transcale perspective." Central European Journal of Geography and Sustainable Development 7, no. 1 (2025): 103–14. https://doi.org/10.51865/cejgsd.2025.7.1.6.

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The rate of biodiversity loss (terrestrial and marine) is among the nine critical environmental thresholds associated with subsystems or biophysical systems of the planet, beyond which the Earth system would undergo unsustainable, abrupt and irreversible environmental changes. This factor is profoundly influenced by climate change and anthropic practices, elements that are leading to the reduction and fragmentation of habitats and the development of a series of important physiological repercussions within the species most affected by these phenomena. Among these, the so-called keystone species
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18

Hrnčiar, Michal. "Keystones of Irregular Warfare." International conference KNOWLEDGE-BASED ORGANIZATION 23, no. 1 (2017): 150–54. http://dx.doi.org/10.1515/kbo-2017-0023.

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Abstract The current security environment is evolving towards a global complexity of unpredictable events. The risk of state and non-state actors attempting to achieve their goals through destabilization exists. In the operating environment, this implies a blurring of the boundaries between state and nonstate actors (such as insurgents, terrorists and criminals) and NATO may confront an adversary who uses traditional (conventional), irregular warfare or both (hybrid warfare). The aim of the article is to find, analyze and describe the key elements that fundamentally different irregular of trad
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Poblete, León, Anna Kadefors, Kamilla Kohn Rådberg, and Pernilla Gluch. "Temporality, temporariness and keystone actor capabilities in innovation ecosystems." Industrial Marketing Management 102 (April 2022): 301–10. http://dx.doi.org/10.1016/j.indmarman.2022.01.012.

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20

Karlinsky, April, and Nicola J. Hodges. "Evaluating the Effectiveness of Peer-Scheduled Practice on Motor Learning." Journal of Motor Learning and Development 2, no. 4 (2014): 63–68. http://dx.doi.org/10.1123/jmld.2014-0036.

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Giving learners a choice over how to schedule practice benefits motor learning. Here we studied peer scheduling to determine whether this benefit is related to the adaptive nature of practice or decisions about how to switch between skills. Forty-eight participants were paired and assigned to self- or peer-scheduled groups. Within each pair, one person (Actor) physically practiced 3 keystroke sequences, each with different timing goals. Self-scheduled Actors chose the sequence before each practice trial while their Partner watched. Peer-scheduled Actors had their practice directed by their Par
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21

Kasper, Julie. "A New Column Focusing on Teachers as a Keystone Actor in the Education Ecosystem." Childhood Education 100, no. 5 (2024): 36–39. http://dx.doi.org/10.1080/00094056.2024.2390796.

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22

Batabyal, Amitrajeet A. "Human actions, the survival of keystone species, and the resilience of ecological–economic systems." Resources Policy 28, no. 3-4 (2002): 153–57. http://dx.doi.org/10.1016/j.resourpol.2003.08.001.

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23

López-Rodríguez, María D., Sonia Chamizo, Yolanda Cantón, and Emilio Rodriguez-Caballero. "Identifying social–ecological gaps to promote biocrust conservation actions." Web Ecology 20, no. 2 (2020): 117–32. http://dx.doi.org/10.5194/we-20-117-2020.

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Abstract. Globally, most bare-looking areas in dryland regions are covered by biocrusts which play a crucial role in modifying several soil surface properties and driving key ecosystem processes. These keystone communities face important threats (e.g. climate change) that place their conservation at risk and in turn the sustainability of the ecosystems they inhabit. Therefore, there is an urgent need to develop ecosystem management strategies to ensure their protection. However, to provide a solid path towards biocrust conservation, the understanding by stakeholders and governance structures o
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Coenen, Jannie, Rob van der Heijden, and Allard C. R. van Riel. "Making a Transition toward more Mature Closed-Loop Supply Chain Management under Deep Uncertainty and Dynamic Complexity: A Methodology." Sustainability 11, no. 8 (2019): 2318. http://dx.doi.org/10.3390/su11082318.

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This article develops a methodology to empirically study and cope with deep uncertainty and dynamic complexity when the actors in a traditional supply chain make a transition toward more mature closed-loop supply chain (CLSC) management. The methodology addressed calls for innovative research and decision-making approaches in this field. Mature, in this context, refers to moving operationally and mentally away from a stochastic, one-dimensional and static approach to CLSC management, towards an exploratory, multi-dimensional and dynamic approach. To empirically study and cope with deep uncerta
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Rodríguez Alonso, Mariángeles. "Del intérprete como soporte de la palabra enunciada al cuerpo-signo del nuevo actor." Tropelías: Revista de Teoría de la Literatura y Literatura Comparada, no. 25 (November 17, 2015): 283. http://dx.doi.org/10.26754/ojs_tropelias/tropelias.2016251191.

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El presente artículo analiza los cambios que se producen en el discurso sobre la figura del actor en el periodo que va desde la promulgación de la ley de prensa en 1966 hasta 1982, fecha que marca la consolidación del proyecto democrático. Señalamos así, en primer lugar, las corrientes interpretativas exógenas cuya influencia deviene esencial en el giro que se imprime a la concepción de la interpretación en este tiempo de cambio. El análisis de los lugares comunes hacia los que converge el nuevo discurso sobre el actor revelará el paso de la condición del actor como mero instrumento de la comu
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Modena, Claudio, Francesca Da Porto, Casarin Filippo, Marco Munari, and Elena Simonato. "Cultural Heritage Buildings and the Abruzzo Earthquake: Performance and Post-Earthquake Actions." Advanced Materials Research 133-134 (October 2010): 3–17. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.3.

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The architectural heritage was seriously hit by the earthquake that occurred on April 6th 2009 in the Abruzzo region, especially considering the effects on a city with the size and with historical and strategic importance as a capital of a region, L’Aquila. The activities to protect that heritage have been centralized in the structure “Protection of Cultural Heritage” at Di.Coma.C. (Command and Control Quarter), managed by the Civil Protection Department. This allowed the cooperation among different involved subjects (Ministry of Cultural Heritage officers, experts on structural engineering fr
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Scaltritti, Michele, F. Xavier Alario, and Marieke Longcamp. "The Scope of Planning Serial Actions during Typing." Journal of Cognitive Neuroscience 30, no. 11 (2018): 1620–29. http://dx.doi.org/10.1162/jocn_a_01305.

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Human activities consisting of multiple component actions require the generation of ordered sequences. This study investigated the scope of response planning in highly serial task, typing, by means of ERPs indexing motor response preparation. Specifically, we compared motor-related ERPs yielded by words typed using a single hand against words that had all keystrokes typed with a single hand, except for a deviant one, typed with the opposite hand. The deviant keystroke occurred either early in the typed sequence, corresponding to the second or third letters, or late, corresponding to the penult
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Martínez-Borda, Rut, Laura Méndez, and Pilar Lacasa. "Internet and Digital Devices in Childhood: Analysis of Twitter Conversations." Forum for Linguistic Studies 6, no. 5 (2024): 833–48. http://dx.doi.org/10.30564/fls.v6i5.6640.

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This study aims to analyze human-media interaction, focusing on Twitter users' perceptions and imaginaries of children's use of the Internet and digital devices. The concepts of media panic, mediation, and mediatization are the theoretical keystones supporting the discussion. Exploring users' reactions and representations reveals that mobile communication and social networks are crucial to understanding broader cultural and social transformations. The evolving landscape of the Internet reveals its diverse applications and implications, shaping collective imaginaries and influencing personal an
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Rolán, Katia, Iván Sánchez-Borges, Boris Kogan, et al. "The embodied typist: Bimanual actions are modulated by words’ implied motility and number of evoked limbs." PLOS ONE 18, no. 8 (2023): e0289926. http://dx.doi.org/10.1371/journal.pone.0289926.

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The planning and execution of manual actions can be influenced by concomitant processing of manual action verbs. However, this phenomenon manifests in varied ways throughout the literature, ranging from facilitation to interference effects. Suggestively, stimuli across studies vary randomly in two potentially relevant variables: verb motility and effector quantity (i.e., the amount of movement and the number of hands implied by the word, respectively). Here we examine the role of these factors during keyboard typing, a strategic bimanual task validated in previous works. Forty-one participants
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Inoue, Yuki. "Winner-Takes-All or Co-Evolution among Platform Ecosystems: A Look at the Competitive and Symbiotic Actions of Complementors." Sustainability 11, no. 3 (2019): 726. http://dx.doi.org/10.3390/su11030726.

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Technological platforms such as hardware or systems form platform ecosystems, which are communities orchestrated by platform providers, outside complementors such as software providers, and consumers. Previous studies have suggested that a winner-takes-all situation among platform ecosystems could be induced by interactions between complementors and consumers. However, our observation of the Japanese video game market over the last 30 years indicated that complementors (i.e., software providers) usually seek to avoid winner-takes-all situations and, instead, promote symbiotic situations. Using
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Hunt, Edmund R., Brian Mi, Camila Fernandez, Brandyn M. Wong, Jonathan N. Pruitt, and Noa Pinter-Wollman. "Social interactions shape individual and collective personality in social spiders." Proceedings of the Royal Society B: Biological Sciences 285, no. 1886 (2018): 20181366. http://dx.doi.org/10.1098/rspb.2018.1366.

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The behavioural composition of a group and the dynamics of social interactions can both influence how social animals work collectively. For example, individuals exhibiting certain behavioural tendencies may have a disproportionately large impact on the group, and so are referred to as keystone individuals, while interactions between individuals can facilitate information transmission about resources. Despite the potential impact of both behavioural composition and interactions on collective behaviour, the relationship between consistent behaviours (also known as personalities) and social inter
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Ayemele, Aurele Gnetegha, Mekonnen Tilahun, Sun Lingling, et al. "Oxidative Stress in Dairy Cows: Insights into the Mechanistic Mode of Actions and Mitigating Strategies." Antioxidants 10, no. 12 (2021): 1918. http://dx.doi.org/10.3390/antiox10121918.

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This review examines several molecular mechanisms underpinning oxidative stress in ruminants and their effects on blood and milk oxidative traits. We also investigate strategies to alleviate or repair oxidative damages by improving animal immune functions using novel feed additives. Microbial pathogenic cells, feeding management, and body condition score were some of the studied factors, inducing oxidative stress in ruminants. The predominance of Streptococcus spp. (24.22%), Acinetobacter spp. (21.37%), Romboutsia spp. (4.99%), Turicibacter spp., (2.64%), Stenotrophomonas spp. (2.33%), and Ent
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Flores, P., R. Izquierdo, E. Leahy, C. Masferrer, and P. Ryan. "Promoting mental health minimising mental illness and integrating through education (PROMISE)." European Psychiatry 26, S2 (2011): 533. http://dx.doi.org/10.1016/s0924-9338(11)72240-4.

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With the implementation of the European Green Paper on Mental Health, and the development of the Mental Health Pact, the strategic importance of Mental Health promotion and illness reduction as keystones of a European mental health policy and practice has never been greater.The PROMISE project is a EU project and is financed by the European Commission, Directorate General for Health and Consumers, DG Sanco. It aims to develop and disseminate guidelines for generic training and education with respect to Mental Health Promotion and Illness Reduction. The best practice guidelines will specificall
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Nambiar, Bejoy, James Shaw, Dougal S. Hargreaves, et al. "AbstractsUnderstanding the impact of a QI intervention on newborn mortality in 3 central districts in Malawi: a post-hoc theory-based evaluationAdvancing Implementation Science for Quality and Safety in Primary Health Care: The Integrated Care for Older Adults with Complex Health Needs Study (iCOACH)." BMJ Quality & Safety 26, no. 5 (2017): 430–32. http://dx.doi.org/10.1136/bmjqs-2017-006696.

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IntroductionA recent WHO multi-country study on maternal and newborn health concluded that there was no evidence of an association between high coverage with essential interventions and reduced mortality in health care facilities, or improvement in other outcomes.1 According to Horton the missing ingredient in this relation is quality of care.2 Quality improvement in healthcare has adopted techniques mainly from industries such as manufacturing and has been used widely in Europe and US. However, evidence of success of these techniques in healthcare is not very conclusive, especially in low and
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Aguado, Juan Miguel, and Andreu Castellet. "Innovar cuando todo cambia. El valor disruptivo de la tecnología móvil en la industria de la información." Sur le journalisme, About journalism, Sobre jornalismo 3, no. 2 (2014): 26–39. http://dx.doi.org/10.25200/slj.v3.n2.2014.181.

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 El contexto de la movilidad ha constituido desde sus mismos orígenes un claro objeto de interés de la actividad informativa. La consolidación del fenómeno smartphone y de la difusión de las tabletas suponen no sólo la generalización de nuevos modos de acceso a la información, sino la puerta de entrada para nuevos actores y nuevas redes de valor en el mercado de la información. En este texto proponemos un recorrido por los principales aspectos en que el ecosistema del contenido móvil opera como factor de disrupción de las industrias informativas. Desde esta perspectiva,
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Österblom, Henrik, Carl Folke, Juan Rocha, et al. "Scientific mobilization of keystone actors for biosphere stewardship." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-07023-8.

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AbstractThe biosphere crisis requires changes to existing business practices. We ask how corporations can become sustainability leaders, when constrained by multiple barriers to collaboration for biosphere stewardship. We describe how scientists motivated, inspired and engaged with ten of the world’s largest seafood companies, in a collaborative process aimed to enable science-based and systemic transformations (2015–2021). CEOs faced multiple industry crises in 2015 that incentivized novel approaches. New scientific insights, an invitation to collaborate, and a bold vision of transformative c
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De Petrillo, Elena, Marta Tuninetti, Luca Ridolfi, and Francesco Laio. "International corporations trading Brazilian soy are keystone actors for water stewardship." Communications Earth & Environment 4, no. 1 (2023). http://dx.doi.org/10.1038/s43247-023-00742-4.

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AbstractTransnational corporations play a major, but poorly constrained, role in reallocating global water resources. Here, we couple high-resolution, company-specific trade data with hydrological and crop models to estimate the virtual water trade of the top 9 transnational corporations that trade Brazilian soy. We identify 4429 virtual water flows connecting 1620 Brazilian municipalities with the top-10 soy importing countries and find that the total virtual water flow increased from 43 billion m3 to 100 billion m3 between 2004 and 2018. We find that the largest soy traders displace on avera
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Djoudi, Houria, Bruno Locatelli, Catherine Pehou, et al. "Trees as brokers in social networks: Cascades of rights and benefits from a Cultural Keystone Species." Ambio, June 23, 2022. http://dx.doi.org/10.1007/s13280-022-01733-z.

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AbstractIndigenous trees play key roles in West African landscapes, such as the néré tree (Parkia biglobosa (Jacq.) R.Br. ex G.Don). We applied social–ecological network analysis to understand the social–ecological interactions around néré. We documented the benefits néré provides and the multiple social interactions it creates amongst a large range of actors. The flows of rights over the trees and benefits from them formed two hierarchical networks, or cascades, with different actors at the top. The two forms of power revealed by the two cascades of rights and benefits suggest possible powers
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Pomegbe, Wisdom Wise Kwabla, Courage Simon Kofi Dogbe, and Prasad Siba Borah. "Pharmaceutical business ecosystem governance and new product development success." International Journal of Productivity and Performance Management, February 21, 2022. http://dx.doi.org/10.1108/ijppm-04-2021-0241.

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PurposeThis current study seeks to examine the effect of pharmaceutical business ecosystem (BE) governance mechanisms on new product development and to ascertain how crucial firm coordination will be in these relationships.Design/methodology/approachAnalysis was based on 173 firms (institutions) selected from pharmaceutical BE. Various validity and reliability checks were conducted before the presentation of the actual analysis, which was conducted using structural equation modeling in Amos (v.23).FindingsFindings showed that both relational and contractual governance mechanisms had direct pos
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40

Gauthier, Vincent, Maria Kyriazi, Meriam Nefla, et al. "Fibroblast heterogeneity: Keystone of tissue homeostasis and pathology in inflammation and ageing." Frontiers in Immunology 14 (February 28, 2023). http://dx.doi.org/10.3389/fimmu.2023.1137659.

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Fibroblasts, derived from the embryonic mesenchyme, are a diverse array of cells with roles in development, homeostasis, repair, and disease across tissues. In doing so, fibroblasts maintain micro-environmental homeostasis and create tissue niches by producing a complex extracellular matrix (ECM) including various structural proteins. Although long considered phenotypically homogenous and functionally identical, the emergence of novel technologies such as single cell transcriptomics has allowed the identification of different phenotypic and cellular states to be attributed to fibroblasts, high
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41

Carrión, Elena. "Policy and Accounting Implications for Ocean Sustainability: Exploring the Ocean 100 Keystone Actors." Social and Environmental Accountability Journal, August 26, 2022, 1–2. http://dx.doi.org/10.1080/0969160x.2022.2115633.

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42

Yongyoon, Suh, Kim Chulhyun, and Kim Moon-soo. "Exploring Structure of Mobile Ecosystem: Inter-Industry Network Analysis Approach." April 25, 2013. https://doi.org/10.5281/zenodo.1077060.

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As increasing importance of symbiosis and cooperation among mobile communication industries, the mobile ecosystem has been especially highlighted in academia and practice. The structure of mobile ecosystem is quite complex and the ecological role of actors is important to understand that structure. In this respect, this study aims to explore structure of mobile ecosystem in the case of Korea using inter-industry network analysis. Then, the ecological roles in mobile ecosystem are identified using centrality measures as a result of network analysis: degree of centrality, closeness, and betweenn
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43

Altiparmak, Suleyman Orhun. "Explaining Contentious Energy Policy." World Review of Political Economy 13, no. 1 (2022). http://dx.doi.org/10.13169/worlrevipoliecon.13.1.0118.

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The Keystone XL (KXL) pipeline is one of the most polarised examples of contemporary American energy politics. The pipeline policy process has not been stable, so it should be analysed over time via a holistic, historical view of interacting dimensions. Robert Cox’s theoretical notions of the “materials–ideas–institutions” balance are drawn upon to understand how actors’ motivations behind policy development were re-shaped through temporal processes over nearly two decades. A critical feature identified is how such interacting dimensions became significant according to specific US presidential
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Lee, Sangwook Scott, Zhimeng Xu, Yingdong Li, Xiaodong Zhang, Jinping Cheng, and Hongbin Liu. "Unraveling Community Potential Interactions by Environmental DNA in the Hong Kong Coastal Waters." Environmental DNA 6, no. 6 (2024). http://dx.doi.org/10.1002/edn3.70034.

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ABSTRACTTraditional approaches for studying potential interactions in marine ecosystems often struggle to fully capture all taxa in a community, especially rare species. This issue is particularly challenging in coastal waters with high biodiversity and spatiotemporal dynamics. In this study, we employed environmental DNA (eDNA) metabarcoding, utilizing multiple marker genes, to comprehensively investigate interspecific interactions across various domains in the subtropical coastal waters of Hong Kong. The southern and eastern regions of Hong Kong waters exhibit distinct environmental seasonal
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45

Elf, Patrick, Robyn Owen, Fergus Lyon, and Haroldo da Gama Torres. "Developing sustainable entrepreneurial finance ecosystems in an emerging market context: the role of keystone actors in managing competing institutional logics." Venture Capital, April 24, 2025, 1–26. https://doi.org/10.1080/13691066.2025.2496192.

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46

Schifani, Enrico, Daniele Giannetti, Cristina Castracani, Fiorenza A. Spotti, Alessandra Mori, and Donato A. Grasso. "Fight and rescue or give up and flee? Behavioural responses of different ant species tending the mutualist walnut aphid Panaphid juglandis to native and exotic lady beetles." Bulletin of Entomological Research, October 19, 2023, 1–6. http://dx.doi.org/10.1017/s0007485323000500.

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Abstract Mutualism between ants and honeydew-producing hemipterans is a highly successful evolutionary innovation that attains the status of ecological keystone across many terrestrial ecosystems, involving a multitude of actors through direct or cascading effects. In these relationships, ants often protect their hemipteran partners against their arthropod natural enemies, sometimes interfering with the biological control of pest species. However, the dynamics of these interactions are highly variable based on the specific identity of all the actors involved, and baseline data remain scarce. W
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Ates, Aylin. "Impeding factors for the generation of collaborative innovation performance in ecosystem-based manufacturing." International Journal of Productivity and Performance Management, March 22, 2022. http://dx.doi.org/10.1108/ijppm-08-2021-0489.

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PurposeAlthough there is a growing body of literature on the benefits of innovation ecosystem participation for keystone/focal firms, there are limited studies on what motivates or impedes other actors’ participation (i.e. suppliers and complementors) in collaborative innovation. Hence, this study aims to address the root causes of collaborative innovation failure and develop a better understanding of the hindering factors for the generation of collaborative innovation performance in ecosystem-based manufacturing.Design/methodology/approachThis study adopted a qualitative research study with 4
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Reyserhove, Lien, Koenraad Muylaert, Isabel Vanoverberghe, and Ellen Decaestecker. "Synergistic effects of dual parasitism in Daphnia magna under nutrient limitation." Belgian Journal of Zoology 147, no. 1 (2017). http://dx.doi.org/10.26496/bjz.2017.5.

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Human-induced increases in the bioavailability of carbon (C), nitrogen (N) and phosphorus (P) have the potential to alter the context for host-parasite dynamics in aquatic ecosystems. Given that both eutrophication and infectious diseases are becoming more prominent, it is essential to disentangle the factors that determine virulence expression in keystone grazers. Here, we focus on the impact of nutrient limitation in single versus dual parasite exposure in the water flea Daphnia magna (Crustacea, Branchiopoda). For this, we fed specimens of D. magna with algae differing in C:N:P ratios and e
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Kudra, Anna, Damian Muszyński, Bartosz Kamil Sobocki, et al. "Insights into oral microbiome and colorectal cancer – on the way of searching new perspectives." Frontiers in Cellular and Infection Microbiology 13 (April 12, 2023). http://dx.doi.org/10.3389/fcimb.2023.1159822.

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Microbiome is a keystone polymicrobial community that coexist with human body in a beneficial relationship. These microorganisms enable the human body to maintain homeostasis and take part in mechanisms of defense against infection and in the absorption of nutrients. Even though microbiome is involved in physiologic processes that are beneficial to host health, it may also cause serious detrimental issues. Additionally, it has been proven that bacteria can migrate to other human body compartments and colonize them even although significant structural differences with the area of origin exist.
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Collineau, Lucie, Léo Rousset, Mélanie Colomb-Cotinat, Marion Bordier, and Clémence Bourely. "Moving towards One Health surveillance of antibiotic resistance in France: a semi-quantitative evaluation of the level of collaboration within the national surveillance system." JAC-Antimicrobial Resistance 6, no. 1 (2023). http://dx.doi.org/10.1093/jacamr/dlae008.

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Abstract Objectives Collaboration between surveillance programmes is the keystone of One Health surveillance and international organizations call for integrated surveillance systems to manage antibiotic resistance (ABR). In France, the ABR surveillance system covers human, animal, food and the environment sectors, but appears to be fragmented, questioning its level of integration. This study aimed to evaluate collaboration within this system and to formulate recommendations towards more integration. Methods ECoSur, a semi-quantitative tool, was used to evaluate collaboration between surveillan
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