University of Almería

The purpose of this article is to present a systematic review of the extensive research that has been conducted on the conceptualization of perceived value. The major conclusions of the present study are: (i) that both uni-dimensional and multi-dimensional models of value have their roles to play in providing simplified (uni-dimensional) and complex (multi-dimensional) understandings of the concept; (ii) that the nature of perceived value is complex and multi-dimensional; (iii) that the concept of perceived value implies an interaction between a consumer and a product; (iv) that value is relative by virtue of its comparative, personal, and situational nature; and (v) that value is preferential, perceptual, and cognitive-affective in nature. By organizing and synthesizing the major research streams and the individual studies within them, the present study thus provides a comprehensive framework for future studies of the dimensionality of perceived value.

This paper shows that organizations in market settings face complex institutional contexts to which they respond in different though patterned ways. We show how both regional state logics and family logics impact on organizational responses to an overarching market logic. Regional logics are particularly potent when the activities of firms, especially of large firms, are concentrated in regions whose governments champion regional distinctiveness and where the regional activities of the firm are significant. Family logics affect the decision to downsize, especially in smaller firms. This paper advances institutional theory by showing the influences of nonmarket institutions on market behavior, contributes to the growing recognition of community influences, and highlights the importance of historical context.

Ecosystem service assessments have increasingly been used to support environmental management policies, mainly based on biophysical and economic indicators. However, few studies have coped with the social-cultural dimension of ecosystem services, despite being considered a research priority. We examined how ecosystem service bundles and trade-offs emerge from diverging social preferences toward ecosystem services delivered by various types of ecosystems in Spain. We conducted 3,379 direct face-to-face questionnaires in eight different case study sites from 2007 to 2011. Overall, 90.5% of the sampled population recognized the ecosystem's capacity to deliver services. Formal studies, environmental behavior, and gender variables influenced the probability of people recognizing the ecosystem's capacity to provide services. The ecosystem services most frequently perceived by people were regulating services; of those, air purification held the greatest importance. However, statistical analysis showed that socio-cultural factors and the conservation management strategy of ecosystems (i.e., National Park, Natural Park, or a non-protected area) have an effect on social preferences toward ecosystem services. Ecosystem service trade-offs and bundles were identified by analyzing social preferences through multivariate analysis (redundancy analysis and hierarchical cluster analysis). We found a clear trade-off among provisioning services (and recreational hunting) versus regulating services and almost all cultural services. We identified three ecosystem service bundles associated with the conservation management strategy and the rural-urban gradient. We conclude that socio-cultural preferences toward ecosystem services can serve as a tool to identify relevant services for people, the factors underlying these social preferences, and emerging ecosystem service bundles and trade-offs.

Urban wastewater treatment plants (WWTPs) are among the main anthropogenic sources for the release of contaminants of emerging concern (CECs) into the environment, which can result in toxic and adverse effects on aquatic organisms and consequently on humans. Unfortunately, WWTPs are not designed to remove CECs and secondary (e.g., conventional activated sludge process, CAS) and tertiary (such as filtration and disinfection) treatments are not effective in the removal of most CECs entering WWTP. Accordingly, several advanced treatment methods have been investigated for the removal of CECs from wastewater, including consolidated (namely, activated carbon (AC) adsorption, ozonation and membranes) and new (such as advanced oxidation processes (AOPs)) processes/technologies. This review paper gathers the efforts of a group of international experts, members of the NEREUS COST Action ES1403 who for three years have been constructively discussing the state of the art and the best available technologies for the advanced treatment of urban wastewater. In particular, this work critically reviews the papers available in scientific literature on consolidated (ozonation, AC and membranes) and new advanced treatment methods (mainly AOPs) to analyse: (i) their efficiency in the removal of CECs from wastewater, (ii) advantages and drawbacks, (iii) possible obstacles to the application of AOPs, (iv) technological limitations and mid to long-term perspectives for the application of heterogeneous processes, and (v) a technical and economic comparison among the different processes/technologies.

Drought stress, which causes a decline in quality and quantity of crop yields, has become more accentuated these days due to climatic change. Serious measures need to be taken to increase the tolerance of crop plants to acute drought conditions likely to occur due to global warming. Drought stress causes many physiological and biochemical changes in plants, rendering the maintenance of osmotic adjustment highly crucial. The degree of plant resistance to drought varies with plant species and cultivars, phenological stages of the plant, and the duration of plant exposure to the stress. Osmoregulation in plants under low water potential relies on synthesis and accumulation of osmoprotectants or osmolytes such as soluble proteins, sugars, and sugar alcohols, quaternary ammonium compounds, and amino acids, like proline. This review highlights the role of osmolytes in water-stressed plants and of enzymes entailed in their metabolism. It will be useful, especially for researchers working on the development of drought-resistant crops by using the metabolic-engineering techniques.

Basic helix-loop-helix proteins (bHLHs) are found throughout the three eukaryotic kingdoms and constitute one of the largest families of transcription factors. A growing number of bHLH proteins have been functionally characterized in plants. However, some of these have not been previously classified. We present here an updated and comprehensive classification of the bHLHs encoded by the whole sequenced genomes of Arabidopsis (Arabidopsis thaliana), Populus trichocarpa, Oryza sativa, Physcomitrella patens, and five algae species. We define a plant bHLH consensus motif, which allowed the identification of novel highly diverged atypical bHLHs. Using yeast two-hybrid assays, we confirm that (1) a highly diverged bHLH has retained protein interaction activity and (2) the two most conserved positions in the consensus play an essential role in dimerization. Phylogenetic analysis permitted classification of the 638 bHLH genes identified into 32 subfamilies. Evolutionary and functional relationships within subfamilies are supported by intron patterns, predicted DNA-binding motifs, and the architecture of conserved protein motifs. Our analyses reveal the origin and evolutionary diversification of plant bHLHs through differential expansions, domain shuffling, and extensive sequence divergence. At the functional level, this would translate into different subfamilies evolving specific DNA-binding and protein interaction activities as well as differential transcriptional regulatory roles. Our results suggest a role for bHLH proteins in generating plant phenotypic diversity and provide a solid framework for further investigations into the role carried out in the transcriptional regulation of key growth and developmental processes.

This second volume deals with the relative homological algebra of complexes of modules and their applications. It is a concrete and easy introduction to the kind of homological algebra which has been developed in the last 50 years. The book serves as a bridge between the traditional texts on homological algebra and more advanced topics such as triangulated and derived categories or model category structures. It addresses to readers who have had a course in classical homological algebra, as well as to researchers.

Abstract Twenty-five years since foundational publications on valuing ecosystem services for human well-being 1,2 , addressing the global biodiversity crisis 3 still implies confronting barriers to incorporating nature’s diverse values into decision-making. These barriers include powerful interests supported by current norms and legal rules such as property rights, which determine whose values and which values of nature are acted on. A better understanding of how and why nature is (under)valued is more urgent than ever 4 . Notwithstanding agreements to incorporate nature’s values into actions, including the Kunming-Montreal Global Biodiversity Framework (GBF) 5 and the UN Sustainable Development Goals 6 , predominant environmental and development policies still prioritize a subset of values, particularly those linked to markets, and ignore other ways people relate to and benefit from nature 7 . Arguably, a ‘values crisis’ underpins the intertwined crises of biodiversity loss and climate change 8 , pandemic emergence 9 and socio-environmental injustices 10 . On the basis of more than 50,000 scientific publications, policy documents and Indigenous and local knowledge sources, the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) assessed knowledge on nature’s diverse values and valuation methods to gain insights into their role in policymaking and fuller integration into decisions 7,11 . Applying this evidence, combinations of values-centred approaches are proposed to improve valuation and address barriers to uptake, ultimately leveraging transformative changes towards more just (that is, fair treatment of people and nature, including inter- and intragenerational equity) and sustainable futures.

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSilver-Mediated Synthesis of HeterocyclesMíriam Álvarez-Corral, Manuel Muñoz-Dorado, and Ignacio Rodríguez-García*View Author Information Dpt. Química Orgánica, Universidad de Almería, 04120 Almería, Spain* To whom correspondence should be addressed. E-mail: [email protected]. Phone: +34 950 015610. Fax: +34 950 015481.Cite this: Chem. Rev. 2008, 108, 8, 3174–3198Publication Date (Web):July 17, 2008Publication History Received14 December 2007Published online17 July 2008Published inissue 1 August 2008https://pubs.acs.org/doi/10.1021/cr078361lhttps://doi.org/10.1021/cr078361lreview-articleACS PublicationsCopyright © 2008 American Chemical SocietyRequest reuse permissionsArticle Views9377Altmetric-Citations539LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Addition reactions,Cyclization,Hydrocarbons,Organic compounds,Silver Get e-Alerts

We assembled genome-wide data from 271 ancient Iberians, of whom 176 are from the largely unsampled period after 2000 BCE, thereby providing a high-resolution time transect of the Iberian Peninsula. We document high genetic substructure between northwestern and southeastern hunter-gatherers before the spread of farming. We reveal sporadic contacts between Iberia and North Africa by ~2500 BCE and, by ~2000 BCE, the replacement of 40% of Iberia's ancestry and nearly 100% of its Y-chromosomes by people with Steppe ancestry. We show that, in the Iron Age, Steppe ancestry had spread not only into Indo-European-speaking regions but also into non-Indo-European-speaking ones, and we reveal that present-day Basques are best described as a typical Iron Age population without the admixture events that later affected the rest of Iberia. Additionally, we document how, beginning at least in the Roman period, the ancestry of the peninsula was transformed by gene flow from North Africa and the eastern Mediterranean.

This research provides an analysis of existing scientific production on agricultural waste
\nfrom 1931 to 2018. The database was obtained from Scopus and includes a total of 3148
\narticles, which were analysed using the bibliometric method. This method focuses on the
\nidentification, evolution, approaches and trends referred to in the use and transformation
\nof agricultural waste. The results of the analysis of the most specific variables, some of
\nwhich are represented graphically through clusters in networking maps using VOSviewer
\nsoftware, establishes that agricultural waste has been studied worldwide for more than 60
\nyears and that research on this issue has become more relevant from 1998. However, it has
\nbeen in the last 13 years that more than 60% of the scientific production on this field of
\nstudy has been generated. The United States, India and China are the countries with the
\ngreatest number of studies, whose central axis has been the use and exploitation of
\nagricultural residues, derived from cereal crops, mainly wheat and corn, as they are the
\nmain producers of this type of crops. Many authors, mainly from government and academic institutions, have contributed considerably to this research topic. The evolution of
\ntheir studies evidences a change in the original approach, due to the influence of the new
\nglobal energy and environmental policies developed during the last decade. Undoubtedly,
\nthe international regulatory framework on sustainable development has been transforming the role of agriculture and especially the policies and strategies on the circular
\neconomy and bioeconomy. New and better techniques for the recovery of agricultural
\nwaste have been developed, based on industrial innovation and high technology, which
\nhas contributed to guaranteeing resource efficiency, sustainable production and consumption and the reduction of negative environmental impact.
\n© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC
\nBY license (http://creativecommons.org/licenses/by/4.0/).

"This article analyzes the general empirical evidence concerning Acceptance and Commitment Therapy (ACT). In the first place, a brief description of the ACT philosophical and theoretical roots is presented. Subsequently, the most fundamental characteristics of the ACT model for psychological intervention are described. Then, a review of the correlational, experimental psychopathology and component, and outcome studies that are relevant for the ACT model empirical status is exposed. In general, the evidence regarding all these types of studies is very coherent and supports the ACT model. Specifically, experiential avoidance is found to be related with a wide range of psychological disorders and mediates the relation between different type of symptoms and psychological constructs; component studies are showing that acceptance-based protocols are usually more efficacious than other control-based protocols; outcome studies show the efficacy of ACT in a wide range of psychological problems and suggest that it is working through its hypothesized processes of change. However, the limitations of the actual empirical status of ACT are recognized and further research is emphasized."

L.). It is cultivated for fresh fruit and processed products. Tomatoes contain many health-promoting compounds including vitamins, carotenoids, and phenolic compounds. In addition to its economic and nutritional importance, tomatoes have become the model for the study of fleshy fruit development. Tomato is a climacteric fruit and dramatic metabolic changes occur during its fruit development. In this review, we provide an overview of our current understanding of tomato fruit metabolism. We begin by detailing the genetic and hormonal control of fruit development and ripening, after which we document the primary metabolism of tomato fruits, with a special focus on sugar, organic acid, and amino acid metabolism. Links between primary and secondary metabolic pathways are further highlighted by the importance of pigments, flavonoids, and volatiles for tomato fruit quality. Finally, as tomato plants are sensitive to several abiotic stresses, we briefly summarize the effects of adverse environmental conditions on tomato fruit metabolism and quality.

The use of medicinal plants has been done since ancient times and may even be considered the origin of modern medicine. Compounds of plant origin have been and still are an important source of compounds for drugs. In this study a bibliometric study of all the works indexed in the Scopus database until 2019 has been carried out, analyzing more than 100,000 publications. On the one hand, the main countries, institutions and authors researching this topic have been identified, as well as their evolution over time. On the other hand, the links between the authors, the countries and the topics under research have been analyzed through the detection of communities. The last two periods, from 2009 to 2014 and from 2015 to 2019, have been examined in terms of research topics. It has been observed that the areas of study or clusters have been reduced, those of the last period being those engaged in unclassified drug, traditional medicine, cancer, in vivo study-antidiabetic activity, and animals-anti-inflammatory activity. In summary, it has been observed that the trend in global research is focused more on the search for new medicines or active compounds rather than on the cultivation or domestication of plant species with this demonstrated potential.

Digital transformation in the education sector has implied the involvement of sustainable management, in order to adapt to the changes imposed by new technologies. Trends in global research on this topic have been analyzed and studied, during the 1986–2019 period. To achieve this purpose, a bibliometric study of 1590 articles from the Scopus database has been applied. The results provided data on the scientific productivity of authors, journals, institutions, and countries that contribute to the development of this research area. The evidence reveals an exponential trend, with special interest in the last five years. The main categories are Social Sciences and Environmental Science. The most productive journal is Sustainability. The author with more articles is Mulder, from The Hague University of Applied Sciences. The most productive institution is Delft University of Technology. The USA is the country with the most academic publications and international collaborations in its studies. The main keywords used in the articles are “sustainability”, “sustainable development”, “higher education”, “innovation”, “technology”, “environmental technology”, “technological development”, and “environmental management”. Global research has followed a growing trend, with optimal publication levels in recent years.

AIMS AND OBJECTIVES: To evaluate compassion fatigue (CF), burnout (BO), compassion satisfaction (CS) and perceived stress in healthcare professionals during the coronavirus disease 2019 (COVID-19) health crisis in Spain. BACKGROUND: Spain has been one of the countries hardest hit by the health crisis caused by the COVID-19 pandemic. Healthcare professionals have had to deal with traumatic and complex situations in the work context. In these particularly stressful situations, many professionals may develop CF or BO, which puts them at risk for mental health problems. DESIGN: Cross-sectional online survey. METHODS: A total of 506 healthcare professionals (physicians and nurses) who were working in healthcare centres during the COVID-19 pandemic participated. CF, CS and BO were assessed with the Professional Quality of Life Questionnaire, and perceived stress was measured with the Perceived Stress Scale-14. Socio-demographic and occupational variables were also analysed. Data were collected during the period of the highest incidence of cases and highest mortality rates due to COVID-19 in Spain. This article adheres to the STROBE guidelines for the reporting of observational studies. RESULTS: Physicians had higher CF and BO scores, while nurses had higher CS scores. Perceived stress scores were similar in both occupations. Professionals working in specific COVID-19 units and in emergency departments had higher CF and BO scores, while levels of CS and perceived stress were similar regardless of the workplace. RELEVANCE TO CLINICAL PRACTICE: Despite the health crisis situation and its implications for healthcare professionals, the levels of CF and BO have remained moderate/high. However, CS seems to be increasing, especially among nurses, possibly due to their motivation to relieve suffering and due to their perceived social recognition. It is necessary to implement interventions that help improve CS and prevent BO and CF among professionals in the long term.

Grain cereals such as wheat, barley, rice, and maize are the nutritional basis of humans and animals worldwide. Thus, these crop plants are essential in terms of global food security. We conducted a bibliometric assessment of scientific documents and patents related to wheat and barley through the Scopus database. The number of documents published per year, their affiliation and corresponding scientific areas, the publishing journals, document types and languages were metricized. The main keywords included in research publications concerning these crops were also analysed globally and clustered in thematic groups. In the case of keywords related to agronomy or genetics and molecular biology, we considered documents dated up to 1999, and from 2000 to 2018, separately. Comparison of the results obtained for wheat and barley revealed some remarkable different trends, for which the underlying reasons are further discussed.

Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary health. Despite global efforts to mitigate legacy pollutants, the continuous introduction of new substances remains a major threat to both people and the planet. In response, global initiatives are focusing on risk assessment and regulation of emerging contaminants, as demonstrated by the ongoing efforts to establish the UN's Intergovernmental Science-Policy Panel on Chemicals, Waste, and Pollution Prevention. This review identifies the sources and impacts of emerging contaminants on planetary health, emphasizing the importance of adopting a One Health approach. Strategies for monitoring and addressing these pollutants are discussed, underscoring the need for robust and socially equitable environmental policies at both regional and international levels. Urgent actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

Educational gamification consists of the use of game elements and game design techniques in the educational context. The objective of this study is to examine the existing evidence on the impact of educational gamification on student motivation and academic performance in the last five years in order to analyze its distribution over time, educational level, variables, and most used game elements, and know the advantages of its implementation in the classroom. For this, a systematic review is proposed through the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) methodology in three multidisciplinary databases, through an exhaustive search with inclusion and exclusion criteria on quantitative experimental studies that explore gamification in educational centers, which provide information about the most current lines of research. Fourteen studies were included in this review. These used experimental or quasi-experimental designs. Most of them report gamification as a valid learning strategy. The results support the conclusion that educational gamification has a potential impact on the academic performance, commitment, and motivation of students. Therefore, this study implies the need to expand research on the needs and challenges of students when learning with gamified techniques.

A set of vertices S resolves a graph G if every vertex is uniquely determined by its vector of distances to the vertices in S. The metric dimension of G is the minimum cardinality of a resolving set of G. This paper studies the metric dimension of cartesian products $G\,\square\,H$. We prove that the metric dimension of $G\,\square\,G$ is tied in a strong sense to the minimum order of a so‐called doubly resolving set in G. Using bounds on the order of doubly resolving sets, we establish bounds on $G\,\square\,H$ for many examples of G and H. One of our main results is a family of graphs G with bounded metric dimension for which the metric dimension of $G\,\square\,G$ is unbounded.