Influencia de los ladrillos hidro cerámicos en una vivienda bioclimática para la ciudad de Iquitos, 2022

Actualmente las construcciones consumen aproximadamente un 60% de materia extraída de la tierra, es por ello, que se tiene la necesidad de buscar nuevos materiales en la construcción, que más allá de sus características portantes y de acondicionamiento puedan ser compatibles con el ambiente y la atmósfera. Sin embargo, la ciudad de Iquitos presenta una problemática respecto a la confortabilidad térmica en las residencias, puesto que, los materiales utilizados en las edificaciones carecen de aislamiento térmico para soportar las elevadas temperaturas del clima de la metrópoli, por ello, se propone como objetivo general determinar la influencia de los ladrillos hidro cerámicos en una vivienda bioclimática para la ciudad de Iquitos – 2022. Referente a la metodología el tipo de investigación fue básica cuantitativa y de diseño no experimental, la muestra se conformó por 100 individuos, de tal manera que se aplicó como técnica de estudio a la encuesta, también se elaboró una ficha técnica y entrevistas a profesionales calificados, los mismos que han sido validados por juicio de expertos. Seguidamente se aplicaron los instrumentos para la recolección de datos y fueron procesados, analizados e interpretados. Por último, se llegó a concluir que los ladrillos hidro cerámicos influyen positivamente en las viviendas de la ciudad de Iquitos

Impact of opioid-free analgesia on pain severity and patient satisfaction after discharge from surgery: multispecialty, prospective cohort study in 25 countries

Background: Balancing opioid stewardship and the need for adequate analgesia following discharge after surgery is challenging. This study aimed to compare the outcomes for patients discharged with opioid versus opioid-free analgesia after common surgical procedures.Methods: This international, multicentre, prospective cohort study collected data from patients undergoing common acute and elective general surgical, urological, gynaecological, and orthopaedic procedures. The primary outcomes were patient-reported time in severe pain measured on a numerical analogue scale from 0 to 100% and patient-reported satisfaction with pain relief during the first week following discharge. Data were collected by in-hospital chart review and patient telephone interview 1 week after discharge.Results: The study recruited 4273 patients from 144 centres in 25 countries; 1311 patients (30.7%) were prescribed opioid analgesia at discharge. Patients reported being in severe pain for 10 (i.q.r. 1-30)% of the first week after discharge and rated satisfaction with analgesia as 90 (i.q.r. 80-100) of 100. After adjustment for confounders, opioid analgesia on discharge was independently associated with increased pain severity (risk ratio 1.52, 95% c.i. 1.31 to 1.76; P < 0.001) and re-presentation to healthcare providers owing to side-effects of medication (OR 2.38, 95% c.i. 1.36 to 4.17; P = 0.004), but not with satisfaction with analgesia (beta coefficient 0.92, 95% c.i. -1.52 to 3.36; P = 0.468) compared with opioid-free analgesia. Although opioid prescribing varied greatly between high-income and low- and middle-income countries, patient-reported outcomes did not.Conclusion: Opioid analgesia prescription on surgical discharge is associated with a higher risk of re-presentation owing to side-effects of medication and increased patient-reported pain, but not with changes in patient-reported satisfaction. Opioid-free discharge analgesia should be adopted routinely

Water-Facilitated Electrodeposition of Neodymium in a Phosphonium-Based Ionic Liquid

Rare-earth metals are considered critical metals due to their extensive use in energy-related applications such as wind turbines and nickel–metal hybrid batteries found in hybrid electrical vehicles. A key drawback of the current processing methods includes the generation of large amounts of toxic and radioactive waste. Thus the efficient recovery of these valuable metals as well as cleaner processing methods are becoming increasingly important. Here we report on a clean electrochemical route for neodymium (Nd) recovery from [P6,6,6,14][TFSI], trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)amide which is amplified three times by the presence of water, as evidenced by the cathodic current density and thicker deposits. The role of Nd salt concentrations and water content as an additive in the electrochemistry of Nd3+ in [P6,6,6,14][TFSI] has been studied. The presence of metallic neodymium in the deposits has been confirmed by X-ray photoelectron spectroscopy.ELKARTEK 2016, KK-2016/00095, LISO

Energy transfer between Eu3+ and Nd3+ in near-infrared emitting β-triketonate coordination polymers

© The Royal Society of Chemistry. Isomorphous ß-triketonate-based lanthanoid polymers containing tris(4-methylbenzoyl)methanide (mtbm) and Rb+ with formula {[Ln(Rb)(mtbm)4]2}n (Ln = Eu3+ and Nd3+) have been synthesised and structurally characterised. The photophysical properties for the Nd3+ complex presented relatively long lifetimes and high quantum yields in comparison with analogous ß-diketonate complexes. Mixed lanthanoid complexes were also formed and their luminescence properties studied, with effective sensitisation of the 4F3/2 of Nd3+via the 5D0 of Eu3+, which is to the best of our knowledge the first example of Eu3+ to Nd3+ sensitisation in a structurally defined coordination complex or polymer