Evolución en la recuperación de información: de la línea de comandos a la interfaz gráfica Web

The impact of web-based graphical user interfaces on search strategies is analysed. Several web-based GUI information providers are considered: OCLC, Dialog, STN and BookWhere. The GUIs are compared against command line interfaces. Some techniques to overcome search problems are studie

Spark solutions for discovering fuzzy association rules in Big Data

The research reported in this paper was partially supported the COPKIT project from the 8th Programme Framework (H2020) research and innovation programme (grant agreement No 786687) and from the BIGDATAMED projects with references B-TIC-145-UGR18 and P18-RT-2947.The high computational impact when mining fuzzy association rules grows significantly when managing very large data sets, triggering in many cases a memory overflow error and leading to the experiment failure without its conclusion. It is in these cases when the application of Big Data techniques can help to achieve the experiment completion. Therefore, in this paper several Spark algorithms are proposed to handle with massive fuzzy data and discover interesting association rules. For that, we based on a decomposition of interestingness measures in terms of α-cuts, and we experimentally demonstrate that it is sufficient to consider only 10equidistributed α-cuts in order to mine all significant fuzzy association rules. Additionally, all the proposals are compared and analysed in terms of efficiency and speed up, in several datasets, including a real dataset comprised of sensor measurements from an office building.COPKIT project from the 8th Programme Framework (H2020) research and innovation programme 786687BIGDATAMED projects B-TIC-145-UGR18 P18-RT-294

New Spark solutions for distributed frequent itemset and association rule mining algorithms

Funding for open access publishing: Universidad de Gran- ada/CBUA. The research reported in this paper was partially sup- ported by the BIGDATAMED project, which has received funding from the Andalusian Government (Junta de Andalucı ́a) under grant agreement No P18-RT-1765, by Grants PID2021-123960OB-I00 and Grant TED2021-129402B-C21 funded by Ministerio de Ciencia e Innovacio ́n and, by ERDF A way of making Europe and by the European Union NextGenerationEU. In addition, this work has been partially supported by the Ministry of Universities through the EU- funded Margarita Salas programme NextGenerationEU. Funding for open access charge: Universidad de Granada/CBUAThe large amount of data generated every day makes necessary the re-implementation of new methods capable of handle with massive data efficiently. This is the case of Association Rules, an unsupervised data mining tool capable of extracting information in the form of IF-THEN patterns. Although several methods have been proposed for the extraction of frequent itemsets (previous phase before mining association rules) in very large databases, the high computational cost and lack of memory remains a major problem to be solved when processing large data. Therefore, the aim of this paper is three fold: (1) to review existent algorithms for frequent itemset and association rule mining, (2)to develop new efficient frequent itemset Big Data algorithms using distributive computation, as well as a new association rule mining algorithm in Spark, and (3) to compare the proposed algorithms with the existent proposals varying the number of transactions and the number of items. To this purpose, we have used the Spark platform which has been demonstrated to outperform existing distributive algorithmic implementations.Universidad de Granada/CBUAJunta de Andalucia P18-RT-1765Ministry of Science and Innovation, Spain (MICINN) Instituto de Salud Carlos III Spanish Government PID2021-123960OB-I00, TED2021-129402B-C21ERDF A way of making EuropeEuropean Union NextGenerationEUMinistry of Universities through the E

El presente y futuro del profesional de la información como intermediario

This study discusses the reasons that make possible the desintermediation as well as the new role that should be adopted by the information professional, at the same time as to serve for reflecting and highlighting the essential role of the information professional as intermediary between databases and scientific information and end-users

Retahílas y canciones infantiles de procedencia europea en el exilio americano

Children’s memory of Spanish exile can be found in the repertoires published in America since 1939. These collections reveal various processes of re-creation that occur in the migratory flow (sometimes back and forth) of songs and retahílas, as well as in the overlap between popular poetry and author poetry.La memoria infantil del exilio español se puede encontrar en los repertorios publicados en América a partir de 1939. Estas colecciones revelan diversos procesos de re-creación que ocurren en el flujo migratorio (a veces de ida y vuelta) de canciones y retahílas, así como en las imbricaciones entre poesía popular y poesía de autor

Retahílas and children’s songs of European origin in the American exile

Children’s memory of Spanish exile can be found in the repertoires published in America since 1939. These collections reveal various processes of re-creation that occur in the migratory flow (sometimes back and forth) of songs and retahílas, as well as in the overlap between popular poetry and author poetryLa memoria infantil del exilio español se puede encontrar en los repertorios publicados en América a partir de 1939. Estas colecciones revelan diversos procesos de re-creación que ocurren en el flujo migratorio (a veces de ida y vuelta) de canciones y retahílas, así como en las imbricaciones entre poesía popular y poesía de autor

ICT and inclusive education: attitudes of the teachers in secondary education

The inclusion and the Information and Communication Technologies (ICT) configure a field of great scientific interest in the current society. In this context, the attitudes of the teachers towards the ICT play an important role. The present article gathers the results of a study whose purpose was to determine how a teacher will use and integrate the ‘Information and Communication Technologies’ (ICT) in inclusive classrooms. This will also identify the factors that promote good educational practices supported by ICT. Towards this we prepared a case study of multiple cases. The questionnaire and group discussion are the techniques that are used for collecting required information. To validate the questionnaire, it was used the expert judgment method selected by the “Coefficient expert Competence” procedure or also named “K coefficient”. The Reliability was established by Cronbach’s Alfa method with a value of 0.87. The result shows that teachers in general have a positive attitude towards ICT, especially the male teachers with greater possibilities of interaction with ICT. This will also promote inclusive and cultures policies between networks of schools and it is presented as an important factor in developing good educational practice with the support of IC

Bacteriophages as an Up-and-Coming Alternative to the Use of Sulfur Dioxide in Winemaking

Certain acetic and lactic acid bacteria are major causes of quality defects in musts and wines, giving rise to defects such as a "vinegary," "sharp, like nail polish-remover" taste or preventing alcoholic and/or malolactic fermentation. Sulfur dioxide is the major tool currently used in the control of these bacteria in wine. The aim of this work was to isolate bacteriophages from musts and wine of different grape varieties that were able to eliminate lactic and acetic acid bacteria spoilages at the laboratory scale. Musts obtained from grape-berries of Vitis vinifera cv. Chardonnay and Moscatel and a red wine made with V. vinifera cv. Tintilla de Rota were used to isolate bacteriophages. Bacteriophages were obtained from each of the musts and the wine and belonged to the order Caudovirals and the family Tectivirals. They were isolated by classical virology methods and identified by electron microscopy. The host bacteria used in the study were lactic acid bacteria of the species Lactobacillus hilgardii, Lactobacillus plantarum, and Oenococcus oeni and the acetic bacteria Acetobacter aceti. A comparative study was performed by adding phage titrations and SO2 to musts and wines, which had been previously inoculated with bacteria, to study the effectiveness of bacteriophages against bacteria. The comparative study showed that some bacteriophages were as effective as sulfur dioxide at low concentration

Culturable Yeasts as Biofertilizers and Biopesticides for a Sustainable Agriculture: A Comprehensive Review

The extensive use of synthetic fertilizers and pesticides has negative consequences in terms of soil microbial biodiversity and environmental contamination. Faced with this growing concern, a proposed alternative agricultural method is the use of microorganisms as biofertilizers. Many works have been focused on bacteria, but the limited literature on yeasts and their potential ability to safely promote plant growth is gaining particular attention in recent years. Thus, the objective of this review is to highlight the application of yeasts as biological agents in different sectors of sustainable agricultural practices through direct or indirect mechanisms of action. Direct mechanisms include the ability of yeasts to provide soluble nutrients to plants, produce organic acids and phytohormones (indole-3-acetic acid). Indirect mechanisms involve the ability for yeasts to act as biocontrol agents through their high antifungal activity and lower insecticidal and herbicidal activity, and as soil bioremediating agents. They also act as protective agents against extreme environmental factors by activating defense mechanisms. It is evident that all the aspects that yeasts offer could be useful in the creation of quality biofertilizers and biopesticides. Hence, extensive research on yeasts could be promising and potentially provide an environmentally friendly solution to the increased crop production that will be required with a growing populatio

The Impact of a Preterm Baby Arrival in a Family: A Descriptive Cross-Sectional Pilot Study

Background: The rate of premature births is increasing every day, with an estimated 15 million premature babies born worldwide each year. When a child is born prematurely, he or she is transferred to a Neonatal Intensive Care Unit (NICU), requiring special care on an ongoing basis. The admission of the newborn to these units can negatively affect the family routine as it generates changes and requires adaptation to new roles. Objectives: The objective of the present study was to understand the effect of the arrival of a premature baby on the family, based on the parents' perception. Methods: A cross-sectional descriptive observational study conducted by means of a self-administered online ad-hoc questionnaire which collected information related to the situation of the relatives of premature infants in the region of Extremadura (Spain). The questionnaire consisted of a total of 35 questions, divided into three sections: 'family environment', 'stay in hospital' and 'return home'. Results: Among the 53 responses obtained from fathers and mothers, 44 were from mothers. 53.6% of the respondents felt a delay in the acquisition of their parental role and 86.8% were afraid for their baby. During hospital stay, most of the parents had to modify their routines (94.3%), 69.8% suffered from sleep disturbances, 84.9% changed their eating habits and 88.5% referred to loss of time for themselves. Once at home, the time it took to recover their family normality ranged from 4 to 11 months, while 84.9% of respondents neglected their personal appearance and more than half had to give up or reduce their working hours. Conclusion: The arrival of a premature baby has a strong impact on the parents' family environment, altering their daily routines and occupations both in hospital and at home. If preterm care programmes take into account these possible occupational imbalances, it will not only meet the needs of the parents but also provide family-centred care