Sapientia
Repositório Científico da UAlg
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The reference genome for the northeastern Pacific bull kelp, Nereocystis luetkeana
Publication . Alves-Lima, Cicero; Montecinos, Gabriel; Escalona, Merly; Calhoun, Sara; Marimuthu, Mohan; Nguyen, Oanh; Beraut, Eric; Lipzen, Anna; Grigoriev, Igor V; Raimondi, Peter; Nuzhdin, Sergey; Alberto, Filipe
Bull kelp, Nereocystis luetkeana, is a northeastern Pacific kelp with broad distribution from Alaska to central California. Its population declines have caused severe concerns in northern California, the Salish Sea in Washington, and recently in some populations in Oregon. Despite bull kelp's accumulated ecological and physiological studies, an assembled and annotated genomic reference was still unavailable. Here, we report the complete and annotated genome of Nereocystis luetkeana, produced by the California Conservation Genomics Project (CCGP), which aims to reveal genomic diversity patterns across California by sequencing the complete genomes of approximately 150 carefully selected species. The genome was assembled into 1,562 scaffolds with 449.82 Mb, 80x of coverage and 22,952 gene models. BUSCO assembly showed a completeness score of 72% for the stramenopiles gene set. The mitochondria and chloroplast genome sequences have 37 Mb and 131 Mb, respectively. The orthology analysis between 10 Phaeophycean genomes showed 1,065 expanded and 286 unique orthogroups for this species. Pairwise comparisons showed 542 orthogroups present only in N. luetkeana and M. pyrifera, another large-body kelp. The enrichment analysis of these orthogroups showed important functions related to central metabolism and signaling due to ATPases enrichment in these two species. This genome assembly will provide an essential resource for the ecology, evolution, conservation, and breeding of bull kelp.
Linguistic loops and geometric invariants as a way to pre-verbal thought?
Publication . Corradetti, Daniele; Alessio Marrani
We introduce the concepts of linguistic transformation, linguistic loop and semantic deficit. By exploiting Lie group theoretical and geometric techniques, we define invariants that capture the structural properties of a whole linguistic loop. This result paves the way to a totally new line of research, employing tools from Lie theory and higher-dimensional geometry within language studies. But, even more intriguingly, our study hints to a mathematical characterization of the meta-linguistic or pre-verbal thought, namely of those cognitive structures that precede the language.
Smart innovation strategy and innovation performance: an empirical application on the Portuguese small and medium‐sized firms
Publication . Cesário, Marisa; Fernandes, Silvia C. Pinto de Brito
Smart Innovation is often considered as the capability of firms to create new opportunities through a dynamic relationship with the main actors in their setting, fostering
higher innovation performances and sustainable competitive advantage. However, innovation indicators of Portugal in Europe show that Portuguese firms miss an open innovation
strategy to cope quick and easily with complex new challenges. Relying on the results from the Community Innovation Survey (CIS 2014) this paper focuses on the analysis of the relationship between a smart‐open innovation approach and firms’ innovation performance in the sample. Furthermore, and using the LINEAR (automatic linear modelling) procedure in SPSS 24.0, statistically significant relationships are established between proxies for smart‐open innovation and a score for innovation performance.
The findings provide relevant conclusions about how Portuguese firms should explore their networking strategies, both in terms of scale (or smart ‐ local/geographically)
and scope (or open ‐ a variety of agents) in order to match their innovation to market, toward a continuous business value.
Factors influencing the choice of the Algarve region as a tourist destination: does season matter?
Publication . Barreira, Ana Paula; Cesário, Marisa
The dissimilar ways in which tourists assess the attributes of a tourism destination in different seasons is an issue scarcely addressed in the literature. Here, we show that the characteristics of a tourism destination (the Algarve region, Portugal) are rated differently in peak (summer) and off‐peak (autumn/winter) seasons. Nationality is decisive in explaining the different assessments between seasons of the factors that group subsets of 17 attributes of the tourism destination. In general, the factors that are rated higher by domestic tourists during the summer are the same as those that are rated higher by foreign tourists in the autumn/winter.
Modern innovation challenges to firms and cities: the case of Portugal
Publication . Fernandes, Silvia C. Pinto de Brito; Cesário, Marisa; Castela, Guilherme
Modern competition is tough due to emergent information systems and technologies. Managers must cope with these challenges continuously to keep their businesses sustainable. An important step is to employ strategies based on open innovation. This work analyses where Portugal stands in terms of innovation in general, propensity for open innovation and innovation sustainability. An HJ-Biplot methodology was applied to a valid sample from CIS 2012 (Community Innovation Survey). It suggests that Portuguese firms must cut back on activities that are not leading to the outcomes needed. Also, with the right partners they can have more ideas executed and diffused.