Panoràmica

-Els “altres”, el gran repte global. Ressenya del llibre de Ryszard Kapuscinski Kapuscinski, la voz del otro: entrevista de Iñaki Gabilondo a Ryszard Kapuscinski y otros textos, a càrrec d’Eduard Sanjuán -La ciutat, el gran aparador. Ressenya de Antonio J. Baladrón Pazos; Esther Martínez Pastor; Marta Pacheco Rueda (coords.) Publicidad y ciudad: la comunicación publicitaria y lo urbano: perspectivas y aportaciones. A càrrec de Miquel Altarriba -Per un (veritable) estat plurinacional. Ressenya dels llibres de Fernando Pessoa Escrits sobre Catalunya i Ibèria i de Josep Maria Puigjaner ¿Una Cataluña sin España?: carta de un escritor catalán a sus amigos españoles. A càrrec de Neus Contreras -Mirando atentamente las noticias. Ressenya del llibre de Amparo Moreno, Florencia Rovetto i Alfonso Buitrago ¿De quién hablan las noticias? Guía para humanizar la información, a càrrec Francesc Barata -La lliure circulació del coneixement a la informàtica. Ressenya del llibre de Meritxell Roca Software libre. Empresa y administración en España y Cataluña. A càrrec d’Ester Clos -Per una memòria justa. Ressenya del llibre de Francesc-Marc Álvaro (coord.). Memòria històrica, entre la ideologia i la justícia, a càrrec de Elena Yeste -Lingüísticament interessant, periodísticament amb matisos. Ressenya del llibre de Daniel Casals Ràdio en català: contribució de Catalunya Ràdio a la creació d’un llenguatge radiofònic. A càrrec de Neus Bonet -El somni d’un espot televisiu. Ressenya del llibre de Belén López Vázquez Publicidad emocional: estrategias creativas, a càrrec de Sandra Vilajoana -El placer del viajero-cinéfilo. Ressenya del llibre de Rafael Dalmau i Albert Galera Ciudades del cine, a càrrec de Álex Lor

Dehydration of Ampelomyces quisqualis CPA-9 conidia by adding biodegradable coatings: Biocontrol activity against powdery mildew and physical characterization of the formulated product

Ampelomyces quisqualis CPA-9 was reported as a promising biocontrol fungus against powdery mildew on cucurbits, although its formulation had not been developed. The present work aimed to develop a fluidised-bed spray-dried formulation of CPA-9 that included film-forming compounds, which could improve the behaviour of the microorganism under practical conditions. Film forming compounds, efficacy, shelf life, physical stability as a function of aw, and solubility in water were determined. A film-forming formulation based on native potato starch and pregelatinised potato starch as carrier and binder was obtained, and sucrose plus skimmed milk were used as protective compounds. Dehydrated conidia maintained the efficacy of fresh cells against Podosphaera xanthii on zucchini leaves, and powdery mildew was significantly reduced compared with control treatment. Despite of results obtained for the glassy state guaranteed the stability of the powder against sticking and caking processes, the shelf life of the product was limited to 4 months of storage at 4 °C. On the other hand, the formulation was mainly dispersible, due to the high concentration of native potato starch which reduces the solubility of the product. Results obtained in this work, such as the high efficacy of the developed product, the low cost of the employed substances, the film-forming ability of the rehydrated powder, and finally the effectiveness of the dehydration process, confirmed the potential of the product. Further studies to verify the improvement of CPA-9 behaviour under practical conditions or to improve the storage conditions to enlarge the shelf life of the BCA should be done to consider the developed product as a biocontrol-based product for cucurbits against powdery mildew.info:eu-repo/semantics/acceptedVersio

Family of Multiple-Root Finding Iterative Methods Based on Weight Functions

A straightforward family of one-point multiple-root iterative methods is introduced. The family is generated using the technique of weight functions. The order of convergence of the family is determined in its convergence analysis, which shows the constraints that the weight function must satisfy to achieve order three. In this sense, a family of iterative methods can be obtained with a suitable design of the weight function. That is, an iterative algorithm that depends on one or more parameters is designed. This family of iterative methods, starting with proper initial estimations, generates a sequence of approximations to the solution of a problem. A dynamical analysis is also included in the manuscript to study the long-term behavior of the family depending on the parameter value and the initial guess considered. This analysis reveals the good properties of the family for a wide range of values of the parameter. In addition, a numerical test on academic and engineering multiple-root functions is performed

The evolution of the ventilatory ratio is a prognostic factor in mechanically ventilated COVID-19 ARDS patients

Background: Mortality due to COVID-19 is high, especially in patients requiring mechanical ventilation. The purpose of the study is to investigate associations between mortality and variables measured during the first three days of mechanical ventilation in patients with COVID-19 intubated at ICU admission. Methods: Multicenter, observational, cohort study includes consecutive patients with COVID-19 admitted to 44 Spanish ICUs between February 25 and July 31, 2020, who required intubation at ICU admission and mechanical ventilation for more than three days. We collected demographic and clinical data prior to admission; information about clinical evolution at days 1 and 3 of mechanical ventilation; and outcomes. Results: Of the 2,095 patients with COVID-19 admitted to the ICU, 1,118 (53.3%) were intubated at day 1 and remained under mechanical ventilation at day three. From days 1 to 3, PaO2/FiO2 increased from 115.6 [80.0-171.2] to 180.0 [135.4-227.9] mmHg and the ventilatory ratio from 1.73 [1.33-2.25] to 1.96 [1.61-2.40]. In-hospital mortality was 38.7%. A higher increase between ICU admission and day 3 in the ventilatory ratio (OR 1.04 [CI 1.01-1.07], p = 0.030) and creatinine levels (OR 1.05 [CI 1.01-1.09], p = 0.005) and a lower increase in platelet counts (OR 0.96 [CI 0.93-1.00], p = 0.037) were independently associated with a higher risk of death. No association between mortality and the PaO2/FiO2 variation was observed (OR 0.99 [CI 0.95 to 1.02], p = 0.47). Conclusions: Higher ventilatory ratio and its increase at day 3 is associated with mortality in patients with COVID-19 receiving mechanical ventilation at ICU admission. No association was found in the PaO2/FiO2 variation

Clustering COVID-19 ARDS patients through the first days of ICU admission. An analysis of the CIBERESUCICOVID Cohort

Background Acute respiratory distress syndrome (ARDS) can be classified into sub-phenotypes according to different inflammatory/clinical status. Prognostic enrichment was achieved by grouping patients into hypoinflammatory or hyperinflammatory sub-phenotypes, even though the time of analysis may change the classification according to treatment response or disease evolution. We aimed to evaluate when patients can be clustered in more than 1 group, and how they may change the clustering of patients using data of baseline or day 3, and the prognosis of patients according to their evolution by changing or not the cluster.Methods Multicenter, observational prospective, and retrospective study of patients admitted due to ARDS related to COVID-19 infection in Spain. Patients were grouped according to a clustering mixed-type data algorithm (k-prototypes) using continuous and categorical readily available variables at baseline and day 3.Results Of 6205 patients, 3743 (60%) were included in the study. According to silhouette analysis, patients were grouped in two clusters. At baseline, 1402 (37%) patients were included in cluster 1 and 2341(63%) in cluster 2. On day 3, 1557(42%) patients were included in cluster 1 and 2086 (57%) in cluster 2. The patients included in cluster 2 were older and more frequently hypertensive and had a higher prevalence of shock, organ dysfunction, inflammatory biomarkers, and worst respiratory indexes at both time points. The 90-day mortality was higher in cluster 2 at both clustering processes (43.8% [n = 1025] versus 27.3% [n = 383] at baseline, and 49% [n = 1023] versus 20.6% [n = 321] on day 3). Four hundred and fifty-eight (33%) patients clustered in the first group were clustered in the second group on day 3. In contrast, 638 (27%) patients clustered in the second group were clustered in the first group on day 3.Conclusions During the first days, patients can be clustered into two groups and the process of clustering patients may change as they continue to evolve. This means that despite a vast majority of patients remaining in the same cluster, a minority reaching 33% of patients analyzed may be re-categorized into different clusters based on their progress. Such changes can significantly impact their prognosis

Dehydration of Ampelomyces quisqualis CPA-9 conidia by adding biodegradable coatings: Biocontrol activity against powdery mildew and physical characterization of the formulated product

[EN] Ampelomyces quisqualis CPA-9 was reported as a promising biocontrol fungus against powdery mildew on cucurbits, although its formulation had not been developed. The present work aimed to develop a fluidised-bed spray-dried formulation of CPA-9 that included film-forming compounds, which could improve the behaviour of the microorganism under practical conditions. Film forming compounds, efficacy, shelf life, physical stability as a function of aw, and solubility in water were determined. A film-forming formulation based on native potato starch and pregelatinised potato starch as carrier and binder was obtained, and sucrose plus skimmed milk were used as protective compounds. Dehydrated conidia maintained the efficacy of fresh cells against Podosphaera xanthii on zucchini leaves, and powdery mildew was significantly reduced compared with control treatment. Despite of results obtained for the glassy state guaranteed the stability of the powder against sticking and caking processes, the shelf life of the product was limited to 4 months of storage at 4 degrees C. On the other hand, the formulation was mainly dispersible, due to the high concentration of native potato starch which reduces the solubility of the product. Results obtained in this work, such as the high efficacy of the developed product, the low cost of the employed substances, the film-forming ability of the rehydrated powder, and finally the effectiveness of the dehydration process, confirmed the potential of the product. Further studies to verify the improvement of CPA-9 behaviour under practical conditions or to improve the storage conditions to enlarge the shelf life of the BCA should be done to consider the developed product as a biocontrol-based product for cucurbits against powdery mildew.This research was supported by the INIA (Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria) and FEDER (Fondo Europeo de Desarrollo Regional) through national project RTA201200067C0201. The research was also supported by INIA and FSE (Fondo Social Europeo) for the PhD grant awarded to A. Carbo. The authors are also grateful to the CERCA Programme/Generalitat de Catalunya and the technical support provided by Cristina Solsona, Celia Sanchez and Andrea Berge.Carbó, A.; Torres, R.; Usall, J.; Marin, A.; Contreras Monzón, CI.; Chiralt Boix, MA.; Teixidó, N. (2021). Dehydration of Ampelomyces quisqualis CPA-9 conidia by adding biodegradable coatings: Biocontrol activity against powdery mildew and physical characterization of the formulated product. Biological Control. 161:1-8. https://doi.org/10.1016/j.biocontrol.2021.104701S1816

Levantamiento arquitectónico y estudio de lesiones de la plaza comercial Soledad, centro histórico de la Ciudad de México

Outgoin