Ornsköldsvik Hospital

Developing effective fractionation methods remains challenging in biorefining. γ-Valerolactone (GVL) is a promising green solvent, yet its application in softwood biorefineries is still underexplored. In this study, GVL pretreatment for softwood biorefining was assessed at laboratory and pilot scales. The effects of temperature (170–210 °C), time (20–60 min), and GVL-to-water ratios (20:80 – 80:20 %) on the biorefining of spruce sawdust were initially investigated through lab-scale experiments using a 1-L reactor. A GVL/water solution at a 40:60 ratio, assisted by 0.4 g of sulfuric acid per 100 g of biomass, enabled the solubilization of up to 81.4 % of lignin and nearly the entire hemicellulosic fraction, while effectively preserving cellulose, which was subsequently saccharified with over 90 % conversion. Lignin was regenerated from the liquors and characterized using pyrolysis-gas chromatography/mass spectrometry, high-performance size-exclusion chromatography, Fourier-transform infrared spectroscopy, and 1 H- 13 C heteronuclear single-quantum coherence nuclear magnetic resonance spectroscopy. The biorefinery concept was successfully scaled up and validated at pilot scale in a 50-L reactor, where enzymatic saccharification of the resulting cellulosic pulp produced hydrolysates that, upon fermentation, yielded 231.4 g of ethanol per kilogram of pulp. Lignin regenerated from the pilot-scale pretreatment liquors (118.9 g per kilogram of raw sawdust) and the lignin-rich saccharification residue (182.7 g/kg) were subjected to hydrothermal liquefaction, and the resulting biocrudes were characterized to assess their potential for biofuel formulation. The study showed the suitability of GVL for spruce biorefining to achieve high recovery of digestible cellulose, lignin and hemicelluloses fractions, that are subsequently valuable for chemicals and fuels production. • γ-Valerolactone (GVL) enabled efficient organosolv pretreatment of spruce sawdust. • High solubilization of lignin and hemicelluloses were achieved. • Enzymatic saccharification of pulps achieved conversions above 90 % at lab scale. • The biorefinery concept was scaled up and validated in a 50-L pilot reactor. • Lignin streams from pilot tests were converted to biocrudes via HTL.

To illuminate nurses' experiences of communicating with families in home health care. A qualitative inductive approach. An increasing number of ageing and sick people are being granted home health care. Nurses' duties involve caring for both patients and their families, which includes the important task of meeting and talking with them. Fourteen registered nurses working in home health care in Sweden participated in individual narrative semistructured interviews. The interviews were analysed with content analysis. To make sure all components of the study were clear, the Standards for Reporting Qualitative Research checklist was used as a guide. Communication with families was viewed as a crucial action for building rapport to facilitate the involvement and support of families in difficult situations. The nurses highlighted the struggles they sometimes faced in communication when they found it difficult to reach the family. When the communication was supportive for the family, the nurses felt that they were empowering the family members to empower themselves. This study highlights the vital role of communication in home health care nursing. Effective communication fosters trust and enables nurses to meet family needs. Effective communication between nurses and families in home health care is crucial from a health care perspective. Building reciprocal relationships fosters trust, enabling nurses to efficiently identify and address family needs and enhancing the quality of care. No patient or public contribution.

Validation of biobanks and large cancer cohorts is essential in ensuring high-quality research results. We examined the coverage, generalisability and validity of the lymphoma collection of the Uppsala-Umeå Comprehensive Cancer Consortium (U-CAN) biobank in Sweden, one of the largest cancer biobanks in Europe. Up until 2022, 889 lymphoma patients in U-CAN Uppsala had available samples, and 329 in U-CAN Umeå. Patients diagnosed in the U-CAN Uppsala area 2011-2021 (n = 843) were linked to the nationwide Swedish Lymphoma Register, and a subset diagnosed before 2019 (n = 727) to population-based registers. The coverage was 39% of all lymphoma patients between 2011 and 2019 diagnosed in the U-CAN Uppsala area, with a pandemic decline to 10% during 2020-2021. The patients included had superior overall survival (hazard ratio = 0.70 [95% confidence interval, CI: 0.60-0.82]) than all lymphoma patients in Sweden. They had better performance status, were younger (odds ratio [OR] = 0.21 [95% CI: 0.13-0.34]) and had less comorbidities (OR = 0.66 [95% CI: 0.56-0.78]). However, cause-specific survival and stage distribution were similar. The questionnaire data captured less comorbidities compared to the national registers. Evaluations of biobanks are important, as even population-based biobanks such as U-CAN select younger patients with higher socioeconomical status and better performance status. However, the similar cause-specific survival as in the registries suggests U-CANs usefulness for prognostic biomarker studies.

ABSTRACT Lithium extraction from natural resources is an accelerating field of research owing to its growing demand in the medical, nuclear, battery, and air conditioning industries. Lithium compounds are used in various industries, including ceramics, glass, lubricant gases, rocket propellant, and aluminum production. The extraction of lithium from seawater via adsorption using AlCl3.6 H2O as an adsorbent is investigated in this study. The effect of process parameters such as pH, temperature, contact time, the molar ratio ([Al3+]/[Li+]), and stirring rate on process efficiency is investigated and optimized. The response surface methodology (RSM) is used to investigate the effects of operating parameters and choose the optimal configuration. A standard synthetic solution containing 50 ppm lithium is prepared and experimented with facilitating comprehension of the procedure. The adsorption efficiency of a synthetic solution is 88% at optimized values, while that of seawater is 78.5%. Seawater has a lower efficiency because it contains ions such as Mg2+, Ca2+, K+, and Na+ that compete for active points/sites during adsorption with lithium ions (Li+).

Huge amounts of noxious chemicals from coal and petrochemical refineries and pharmaceutical industries are released into water bodies. These chemicals are highly toxic and cause adverse effects on both aquatic and terrestrial life. The removal of hazardous contaminants from industrial effluents is expensive and environmentally driven. The majority of the technologies applied nowadays for the removal of phenols and other contaminants are based on physio-chemical processes such as solvent extraction, chemical precipitation, and adsorption. The removal efficiency of toxic chemicals, especially phenols, is low with these technologies when the concentrations are very low. Furthermore, the major drawbacks of these technologies are the high operation costs and inadequate selectivity. To overcome these limitations, researchers are applying biological and membrane technologies together, which are gaining more attention because of their ease of use, high selectivity, and effectiveness. In the present review, the microbial degradation of phenolics in combination with intensified membrane bioreactors (MBRs) has been discussed. Important factors, including the origin and mode of phenols' biodegradation as well as the characteristics of the membrane bioreactors for the optimal removal of phenolic contaminants from industrial effluents are considered. The modifications of MBRs for the removal of phenols from various wastewater sources have also been addressed in this review article. The economic analysis on the cost and benefits of MBR technology compared with conventional wastewater treatments is discussed extensively.

Photovoice is a participatory action research method that aims to include the voices of groups by enabling people to record and reflect on their knowledge of issues they consider important. Drawing from critical pedagogy, feminist theory, and community-based approaches to document research, photovoice involves participants as collaborators by using photographs that participants take themselves. Engaging the participants in conversations regarding their photographs facilitates agency in the research process and provides valuable insights into the views, experiences, and knowledge of participants. Originating in the public sector as a method for assessing health needs, the use of photovoice has since gained popularity as a tool for examining perceptions regarding changes in the social and natural environment, and for exploring human-environment interactions. This paper reviews the use of photovoice as a research method to engage indigenous youth in the small island community of Rarotonga, Cook Islands for the exploration of ecological and social wellbeing during disaster times. Amidst the global disruption ensued by the COVID-19 pandemic, indigenous youth participants explored the responses and adaptations of their community to changes in the social and ecological environment of their island home. Given the associated lockdown measures and travel restrictions, photovoice interviews were conducted via Zoom, an online videoconferencing platform. By integrating the photovoice method with advanced online communication systems, the research team based in Auckland, New Zealand was able to collect data remotely while facilitating meaningful engagement with indigenous youth participants across geographic and cultural borders. The use of online photovoice via Zoom was shown to be an empowering and inclusive method for the engagement of indigenous youth and the promotion of collaborative, cross-cultural research partnerships for the exploration of social and ecological wellbeing during a global disruption.