Discussion (and/or other closing) (DC) sections of research articles in English-medium journals are difficult to write, especially when English is not a first language. This intercultural rhetoric ...research explores whether greater effort is made to promote research in English than in Spanish. I drew ten pairs of comparable DC sections from the EXEMPRAES (exemplary empirical research articles in English and Spanish) Corpus. I systematically annotated these sections for their communicative functions, and, for the first time, my annotations were validated by the article authors, themselves. Additionally, I used an online survey to understand the authors' promotional behaviour. This innovative mixed methodology confirmed that the social scientists in the study were more promotional in English than in Spanish. Authors in English highlighted more positive aspects of their studies and applications of their results. In contrast, Spanish authors were more neutral, focussing largely on statements of contribution and relevance to the zeitgeist. Revealing how different levels of culture (unstated communication principles, knowledge areas, socialisation processes and research assessment policies) affect the inclusion of specific communicative functions demonstrates how social scientists’ promotional approaches in DC sections are complex and merit further attention. Implications for the teaching of academic writing in English are drawn.
Social scientists were more promotional in English than in Spanish. Display omitted
•A mixed-methods study of research promotion in RA DC sections in English and Spanish.•Innovatively, most of the authors themselves validated text annotations and coding.•Overall, English DC sections are more promotional than comparable Spanish texts.•Authors in English highlight more positive aspects and applications of their research.•Differences are explained by complex interactions at a variety of levels of culture.
By analyzing internationalization as a dynamic process, we attempt to explain the speed of international operations in terms of learning acquired in the course of past international activities. We ...consider that the speed of the internationalization process depends on the type of experiential learning that results from decisions implicit in the internationalization process: choice of location and modes of operation. Firms develop two types of learning activities with respect to the selection of foreign markets and modes of operation: diversity and depth of accumulated international activities. We propose that depth of international activities has an inverted U-shaped impact on the speed of the internationalization process, while diversity of international activities has a U-shaped influence on the speed of internationalization process. The results of our longitudinal study of 889 firms over 23 years (1986-2008) suggest that diversity of international activities promotes long-term learning by exposing the firm to richer experiences, although such learning only takes place over time. Depth of international activities may accelerate the internationalization process in the short term, but it eventually restrains its potential for development in the long term. Our research highlights the short-term vs long-term consequences of different types of decisions related to the internationalization process.
The pathological importance of mixed viral infections in plants might be underestimated except for a few well-characterized synergistic combinations in certain crops. Considering that the host ranges ...of many viruses often overlap and that most plant species can be infected by several unrelated viruses, it is not surprising to find more than one virus simultaneously in the same plant. Furthermore, dispersal of the majority of plant viruses relies on efficient transmission mechanisms mediated by vector organisms, mainly but not exclusively insects, which can contribute to the occurrence of multiple infections in the same plant. Recent work using different experimental approaches has shown that mixed viral infections can be remarkably frequent, up to the point that they could be considered the rule more than the exception. The purpose of this review is to describe the impact of multiple infections not only on the participating viruses themselves but also on their vectors and on the common host. From this standpoint, mixed infections arise as complex events that involve several cross-interacting players, and they consequently require a more general perspective than the analysis of single-virus/single-host approaches for a full understanding of their relevance.
This paper presents a novel method to delineate metropolitan areas – or functional urban areas (FUAs) – in the entire world and assesses their population trends. According to the definition developed ...by the OECD and the European Union, FUAs are composed of high-density urban centres with at least 50 thousand people plus their surrounding commuting zones. The latter represent the urban centres’ areas of influence in terms of labour market flows. The proposed method combines a functional and a morphological approach to overcome the dependency on travel-to-work data to define commuting zones and allow a global delineation. It relies on a probabilistic approach and the use of population and travel impedance gridded data across the globe. Results show that around 3.9 billion people, making up 53% of the world population, live in 8,790 FUAs, out of which 17% live in their commuting zones. Between 2000 and 2015, population growth was higher in larger FUAs, highlighting a general trend toward higher concentration of the metropolitan population. Commuting zones grew faster than urban centres, though with heterogeneous patterns across world regions, income levels and metropolitan size.
Hydroxycinnamic acids present in plant cuticles, the interphase and the main protective barrier between the plant and the environment, exhibit singular photochemical properties that could allow them ...to act as a UV shield. Here, we employ transient absorption spectroscopy on isolated cuticles and leaf epidermises to study in situ the photodynamics of these molecules in the excited state. Based on quantum chemical calculations on p-coumaric acid, the main phenolic acid present in the cuticle, we propose a model in which cuticle phenolics display a photoprotective mechanism based in an ultrafast and non-radiative excited state deactivation combined with fluorescence emission. As such, the cuticle can be regarded as the first and foremost protective barrier against UV radiation. This photostable and photodynamic mechanism seems to be universal in land plants giving a special role and function to the presence of different aromatic domains in plant cuticles and epidermises.
The cuticle is a protective extracellular matrix that covers the above-ground epidermis of land plants. Here, we studied the cuticle of tomato (Solanum lycopersicum L.) fruits in situ using confocal ...Raman microscopy. Microsections from cuticles isolated at different developmental stages were scanned to visualize cuticle components with a spatial resolution of 342 nm by univariate and multivariate data analysis. Three main components, cutin, polysaccharides, and aromatics, were identified, with the latter exhibiting the strongest Raman scattering intensity. Phenolic acids and flavonoids were differentiated within the cuticle, and three schematic cuticle models were identified during development. Phenolic acids were found across the entire cuticle at the earliest stage of development, i.e. during the formation of the procuticle layer. Based on a mixture analysis with reference component spectra, the phenolic acids were identified as mainly esterified p-coumaric acid together with free p-hydroxybenzoic acid. During the cell expansion period of growth, phenolic acids accumulated in an outermost layer of the cuticle and in the middle region of the pegs. In these stages of development, cellulose and pectin were detected next to the inner cuticle region, close to the epidermal cell where flavonoid impregnation started during ripening. In the first ripening stage, chalconaringenin was observed, while methoxylated chalcones were chosen by the algorithm to fit the mature cuticle spectra. The colocation of carbohydrates, esterified p-coumaric acid, and methoxylated chalconaringenin suggests that the latter two link polysaccharide and cutin domains. Elucidating the different distribution of aromatics within the cuticle, suggests important functions: (1) overall impregnation conferring mechanical and thermal functions (2) the outermost phenolic acid layer displaying UV-B protection of the plant tissue.
Human microbiota seems to play a key role in endocrine and reproductive systems. Fortunately, microbiota reproductive dysbiosis start to be treated by probiotics using typical species from genus
. ...This work presents the compiled and analysed results from the most up-to-date information from clinical trials regarding microbiota, fertility, probiotics and oral route administration, reviewing open access scientific documents. These studies analyse the clinical impact of probiotics administered on several endocrine disorders' manifestations in women: mastitis; vaginal dysbiosis; pregnancy complication disorders; and polycystic ovary syndrome. In all cases, the clinical modulation achieved by probiotics was evaluated positively through the improvement of specific disease outcomes with the exception of the pregnancy disorders studies, where the sample sizes results were statistically insufficient. High amounts of studies were discarded because no data were provided on specific probiotic strains, doses, impact on the individual autochthon microbiota, or data regarding specific hormonal values modifications and endocrine regulation effects. However, most of the selected studies with probiotics contained no protocolised administration. Therefore, we consider that intervention studies with probiotics might allocate the focus, not only in obtaining a final outcome, but in how to personalise the administration according to the disorder to be palliated.
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