473 research outputs found

    Determinants of soil organic matter chemistry in maritime temperate forest ecosystems

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    While the influence of climate, vegetation, management and abiotic site factors on total carbon budgets and turn-over is intensively assessed, the influences of these ecosystem properties on the chemical complexity of soil organic matter (SOM) remains poorly understood. This study addresses the chemical composition of NaOH-extracted SOM from maritime temperate forest sites in Flanders (Belgium) by pyrolysis-GC/MS. The studied forests were chosen based on dominant tree species (Pinus sylvestris, Fagus sylvatica, Quercus robur and Populus spp.), soil texture and soil-moisture conditions. Differences in extractable-SOM pyrolysis products were correlated to site variables including dominant tree species, management of the woody biomass, site history, soil properties, total carbon stocks and indicators for microbial activity. Despite of a typical high intercorrelation between these site variables, the influence of the dominant tree species is prominent. The extractable-SOM composition is strongly correlated to litter quality and available nutrients. In nutrient-poor forests with low litter quality, the decomposition of relatively recalcitrant compounds (i.e. short and mid-chain alkanes/alkenes and aromatic compounds) appears hampered, causing a relative accumulation of these compounds in the soil. However, if substrate quality is favorable, no accumulations of recalcitrant compounds were observed, not even under high soil-moisture conditions. Former heathland vegetation still had a profound influence on extractable-SOM chemistry of young pine forests after a minimum of 60 year

    Monitoramento da multidisciplinaridade no processo de transferência de tecnologia em uma universidade: proposta de análise de cluster

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    ABSTRACTThis paper discusses the management of the technology transfer process conducted by a Technology Transfer Office (TTO) of a federal public university. Patent co-authorship and multidisciplinarity were used as concepts to evaluate and monitor the quality of academic and practical contribution and their potential for commercial application, using descriptive statistics and cluster analysis. Considering only multidisciplinary patents, binary cluster analysis was conducted, using Jaccard similarity measurement and single linkage method to determine proximity among academic units. Apart from the analysis of the number of patents, the approach enabled discussions and questions regarding the differences between patent generation patterns, resultant from the specific organizational culture and structures. The discussions are relevant to improve the identification of opportunities in technology transfer processes by the TTO

    Inspædia: [Almost] Everything About Simplicity, Playfulness and Inspiration

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    The aim of this paper is to disclose the new research developments and the results from the systematization of experience and user interaction with the Inspædia (a new web knowledge “Agora”), to inspire a dynamic, collaborative, and interactive intelligence among the inspædiers. We will explain in detail and describe the design process and discuss the ultimate design interaction concept & development regarding (almost everything about) simplicity and playfulness of the inspædiers’ experience to transform relevant information (related > meanfull > useful) in productive knowledge (inspiration > insight > foresight) in a very easy and quick way (usability: learnability; understandability; operability; attractiveness...), with a smile in the face (satisfaction) and a wow in the mind (or in the soul).Inspædia is the natural consequence and development of the prototype resulting from the research in Design PhD thesis Innovation, design et cetera (FA/UTL, 2012). Therefore, it is being developed with the Science Without Borders Program (2013-2016) with a Special Visiting Researcher fellowship grant of CAPES (Brazil), and under the post-doctoral in Design at the Faculty of Architecture, University of Lisbon (FA/UL); CIAUD – Reseach Centre of Architecture, Urbanism and Design (FA/UL); Faculty of Sciences and Technology, Nova University of Lisbon (FCT/UNL); NOVA-LINCS (FCT/UNL) and CITAD - Research Centre for Territory, Architecture and Design (FAA/ULL). The Inspædia research project was ranked in first place in Design scientific area and obtained a post-doctoral fellowship by FCT – Foundation for Science and Technology (Portugal). The project has been internationally disseminated at international Design conferences with indexed publications. It was presented and published both at AHFE 2014 (Krakow) and AHFE 2015 (Las Vegas). It was part of the biennial Experimentadesign tangential events in 2013 (EXD'13), 2015 (EXD'15) and was presented, by invitation, at the International Congress DESIGN I-CON (2015). During the last year we prototyped and tested (usability testing) with some inspædiers different approaches to achieve users’ needs > desires > expectations) in a challenging way, in order to provide the most powerful and memorable user experience

    Protein polymer accumulation during grain development and relations to quality: Influences of cultivar and environment

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    OBJECTIVE: To assess the independent and combined impact of frailty, multi-morbidity, and activities of daily living (ADL) limitations on self-reported quality of life and healthcare costs in elderly people. DESIGN: Cross-sectional, descriptive study. METHOD: Data came from The Older Persons and Informal Caregivers Minimum DataSet (TOPICS-MDS), a pooled dataset with information from 41 projects across the Netherlands from the Dutch national care for the Elderly programme. Frailty, multi-morbidity and ADL limitations, and the interactions between these domains, were used as predictors in regression analyses with quality of life and healthcare costs as outcome measures. Analyses were stratified by living situation (independent or care home). Directionality and magnitude of associations were assessed using linear mixed models. RESULTS: A total of 11,093 elderly people were interviewed. A substantial proportion of elderly people living independently reported frailty, multi-morbidity, and/or ADL limitations (56.4%, 88.3% and 41.4%, respectively), as did elderly people living in a care home (88.7%, 89.2% and 77,3%, respectively). One-third of elderly people living at home (31.9%) reported all three conditions compared with two-thirds of elderly people living in a care home (68.3%). In the multivariable analysis, frailty had a strong impact on outcomes independently of multi-morbidity and ADL limitations. Elderly people experiencing problems across all three domains reported the poorest quality-of-life scores and the highest healthcare costs, irrespective of their living situation. CONCLUSION: Frailty, multi-morbidity and ADL limitations are complementary measurements, which together provide a more holistic understanding of health status in elderly people. A multi-dimensional approach is important in mapping the complex relationships between these measurements on the one hand and the quality of life and healthcare costs on the other

    Quantitative comparison of the neutralizing capacity, immunogenicity and cross-reactivity of anti-TNF-alpha biologicals and an Infliximab-biosimilar

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    Introduction TNF-alpha-neutralizing antibodies, such as infliximab (IFX) and adalimumab (ADA), are effective in the treatment of inflammatory bowel diseases (IBD), but they are expensive and become ineffective when patients develop anti-IFX or anti-ADA antibodies (ATI and ATA, respectively). Second-generation anti-TNF-alpha antibodies, such as Golimumab, Etanercept, Certolizumab-pegol and IFX biosimilars, may solve these issues. Aim To determine the neutralizing capacity of first- and second generation anti-TNF-alpha antibodies and to determine whether ATI show cross-reactivity with the IFX biosimilar CT-P13 (Inflectra). Methods TNF-alpha neutralization was measured using a quantitative TNF-alpha sensor assay consisting of HeLa 8D8 cells that express the Green Fluorescence Protein (GFP) under control of a NF kappa B response element. All available anti-TNF-alpha drugs and the IFX biosimilar CT-P13 (Inflectra) were tested for their TNF-alpha-neutralizing capacity. In addition, patient sera with ATI were tested for their potential to block the activity of IFX, IFX (F)ab(2)-fragment, biosimilar CT-P13 (Inflectra) and ADA. Results TNF-alpha strongly induced GFP expression in Hela 8D8 cells. Higher concentrations of firstgeneration anti-TNF-alpha drugs were required to neutralize TNF-alpha compared to the secondgeneration anti-TNF-alpha drugs. Serum of IBD patients with proven ATI blocked TNF-alpha-neutralizing properties of IFX biosimilar CT-P13 (Inflectra), whereas such sera did not block the effect of ADA. Conclusion The second-generation anti-TNF-alpha drugs show increased TNF-alpha-neutralizing potential compared to first-generation variants. ATI show cross-reactivity toward IFX biosimilar CT-P13 (Inflectra), consequently patients with ATI are unlikely to benefit from treatment with this IFX biosimilar

    Comprehensive geriatric assessment, multifactorial interventions and nurse-led care coordination to prevent functional decline in community-dwelling older persons: protocol of a cluster randomized trial

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    <p>Abstract</p> <p>Background</p> <p>Functional decline in community-dwelling older persons is associated with the loss of independence, the need for hospital and nursing-home care and premature death. The effectiveness of multifactorial interventions in preventing functional decline remains controversial. The aim of this study is to investigate whether functional decline in community-dwelling older persons can be delayed or prevented by a comprehensive geriatric assessment, multifactorial interventions and nurse-led care coordination.</p> <p>Methods/Design</p> <p>In a cluster randomized controlled trial, with the general practice as the unit of randomization, 1281 participants from 25 general practices will be enrolled in each condition to compare the intervention with usual care. The intervention will focus on older persons who are at increased risk for functional decline, identified by an Identification of Seniors at Risk Primary Care (ISAR-PC) score (≥ 2). These older persons will receive a comprehensive geriatric assessment, an individually tailored care and treatment plan, consisting of multifactorial, evidence-based interventions and subsequent nurse-led care coordination. The control group will receive 'care as usual' by the general practitioner (GP). The main outcome after 12 months is the level of physical functioning on the modified Katz-15 index score. The secondary outcomes are health-related quality of life, psychological and social functioning, healthcare utilization and institutionalization. Furthermore, a process evaluation and cost-effectiveness analysis will be performed.</p> <p>Discussion</p> <p>This study will provide new knowledge regarding the effectiveness and feasibility of a comprehensive geriatric assessment, multifactorial interventions and nurse-led elderly care in general practice.</p> <p>Trial registration</p> <p><a href="http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=2653">NTR2653</a></p> <p>Grant</p> <p>Unrestricted grant 'The Netherlands Organisation for Health Research and development' no 313020201</p

    Emergency department management of older people living with frailty: a guide for emergency practitioners

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    Emergency Departments (EDs) are increasingly seeing more seriously unwell older people living with frailty. In the context of limited resources and increasing demand it's the ED practitioner's challenge to unpick this constellation of physical, psychological, functional and social issues. To properly assess older people living with frailty at the ED it is crucial to use an holistic approach. This consists of triage with algorithms sensitive to the higher risk of older people living with frailty, a frailty assessment, and an assessment with the help of the principles of Comprehensive Geriatric Assessment. Multi-disciplinary care, a tailor-made treatment plan, based on what the person values most, will help the ED practitioner to deliver appropriate and valuable care during the ED stay, but also in transition from hospital to home.Public Health and primary careGeriatrics in primary car
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