Vacuum-assisted block freeze concentration studies in cheese whey and its potential in lactose recovery

Block freeze concentration (BFC) is considered an emerging technology which allows the acquiring of high quality organoleptic products, due to the low temperatures employed. In this study we have outlined how the vacuum-assisted BFC of whey was investigated. The effects of vacuum time, vacuum pressure, and the initial solids concentration in whey were studied. The results obtained show that the three variables significantly affect each of the following parameters analysed: solute yield (Y) and concentration index (CI). The best Y results were obtained at a pressure of 10 kPa, 7.5°Bx, and 60 min. For CI parameter, the highest values were given at 10 kPa, 7.5°Bx, and 20 min, respectively. In a second phase, by applying the conditions that provide higher solute yield to three different types of dairy whey, Y values of 70% or higher are reached in a single step, while that the CI of lactose are higher than those of soluble solids. Therefore, it is possible to recover, in a single step, at least 70% of the lactose contained in the initial whey samples. This suggests that vacuum-assisted BFC technology may be an interesting alternative for the recovery of lactose contained in whey.This research received no external funding. The APC was financed by AGRUPS-2022 at Universitat Politècnica de Catalunya (UPC) and SGR-Cat 2021 of Departament de Recerca i Univer- sitats (Generalitat de Catalunya)Objectius de Desenvolupament Sostenible::12 - Producció i Consum ResponsablesPostprint (published version

Correlation between plateletworks® and pfa-100® for measuring platelet function before urgent surgery in patients with chronic antiplatelet therapy

Altres ajuts: Fondo Europeo de Desarrollo Regional (FEDER); Biometa: Tecnologías y Sistemas SAL.Hemostasis is crucial for reducing bleeding during surgical procedures. The points-of-care based on the platelet function test could be useful to minimize the complications related to chronic antiplatelet therapy during surgery. The present study is aimed at comparing two point-of-care platelet function devices-Platelet Function Analyzer PFA-100® (Siemens Canada, Mississauga, ON, Canada) and Plateletworks® (Helena Laboratories, Beaumont, TX, USA). Our objective is to evaluate if they provide comparable and useful information to manage anti-aggregate patients before surgery. We included patients with a femoral fracture receiving chronic antiplatelet therapy and a median age of 89 years (range from 70 to 98). A platelet function evaluation was performed on all patients before surgery using both devices-Plateletworks® and PFA-100®. The correlation between Plateletworks® and PFA-100® was performed using Cohen's Kappa coefficient. Twenty consecutive patients par-ticipated in the trial; 16 patients were under treatment with 75 mg/day of clopidogrel, three with >300 mg/day of acetylsalicylic acid (ASA), and only one was in treatment with both antiplatelet agents. Cohen's Kappa coefficient was 0.327 comparing PFA-100®-ADP (adenosine diphosphate) and Plateletworks® and, 0.200 comparing PFA-100®-EPI (epinephrine) and Plateletworks®. In conclusion, we found a weak concordance comparing PFA-100® and Plateletworks®. This could partially be due to the advanced age of the included patients. However, given the limited sample size, more studies are necessary to confirm these results

Online and open resources about the MuPAI collection (Pedagogical Museum of Children's Art)

En este proyecto se pretendía generar recursos partiendo de la colección del MuPAI que permitieran a quienes estén interesados en la expresión artística infantil, conocerla mejor y poder utilizarla como herramienta docente. Para ello se estudiaron tanto las necesidades de los y las docentes en formación como de los niños y niñas a las que van a impartir clase en un futuro, para poder aportar herramientas y conocimientos que potencien el desarrollo y la importancia de este tipo de expresión en la infancia. El proyecto se materializa con la edición de 4 recursos didácticos, uno sobre dibujo infantil (pendiente de publicación) y 3 sobre objetivos de la Agenda 2030 (Consumo y producción responsable y Acción por el clima; Salud y bienestar; e Igualdad de género), disponibles en E-prints Complutense.This project intended to generate resources based on the MuPAI collection that would allow those who are interested in children's artistic expression to get to know it better and be able to use it as a teaching tool. For this, both the needs of the teachers in training and of the boys and girls to whom they are going to teach in the future were studied, in order to provide tools and knowledge that enhance the development and importance of this type of expression in the childhood. The project materializes with the edition of 4 didactic resources, one on children's drawings (pending publication) and 3 on the objectives of the 2030 Agenda (Responsible consumption and production and Climate action; Health and well-being; and Gender equality), available in E-prints Complutense.Depto. de Escultura y Formación ArtísticaFac. de Bellas ArtesFALSEsubmitte

Use of failure-to-rescue after emergency surgery as a dynamic indicator of hospital resilience during the COVID-19 pandemic. A multicenter retrospective propensity score-matched cohort study

10.1016/j.ijsu.2022.106890INTERNATIONAL JOURNAL OF SURGERY106complete