28 research outputs found

    Guidelines for the use of flow cytometry and cell sorting in immunological studies (third edition)

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    The third edition of Flow Cytometry Guidelines provides the key aspects to consider when performing flow cytometry experiments and includes comprehensive sections describing phenotypes and functional assays of all major human and murine immune cell subsets. Notably, the Guidelines contain helpful tables highlighting phenotypes and key differences between human and murine cells. Another useful feature of this edition is the flow cytometry analysis of clinical samples with examples of flow cytometry applications in the context of autoimmune diseases, cancers as well as acute and chronic infectious diseases. Furthermore, there are sections detailing tips, tricks and pitfalls to avoid. All sections are written and peer‐reviewed by leading flow cytometry experts and immunologists, making this edition an essential and state‐of‐the‐art handbook for basic and clinical researchers.DFG, 389687267, Kompartimentalisierung, Aufrechterhaltung und Reaktivierung humaner GedĂ€chtnis-T-Lymphozyten aus Knochenmark und peripherem BlutDFG, 80750187, SFB 841: LeberentzĂŒndungen: Infektion, Immunregulation und KonsequenzenEC/H2020/800924/EU/International Cancer Research Fellowships - 2/iCARE-2DFG, 252623821, Die Rolle von follikulĂ€ren T-Helferzellen in T-Helferzell-Differenzierung, Funktion und PlastizitĂ€tDFG, 390873048, EXC 2151: ImmunoSensation2 - the immune sensory syste

    Innovation as a vehicle for improving socially vulnerable groups' access to basic provisions : a research note on the development of a questionnaire module

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    Reducing inequality and social exclusion is a challenging task that will require a joint effort by all societal stakeholders, including not-for-profit and for-profit organizations. In order to develop and evaluate policy actions in this area, monitoring the contribution of these for-profit and not-for-profit organizations to a more inclusive society becomes crucial. This research note describes the development, cognitive pretesting, and large-scale empirical testing of a module that can be included in (inter)national innovation surveys. The module measures whether not-for-profits' and for-profits' innovation activities improve vulnerable groups' access to basic provisions. It also provides insights in the main drivers for improving beneficiaries' access to basic provisions through innovation and in the types and numbers of beneficiaries reached. The module was tested in the context of the Community Innovation Survey in Flanders, Belgium

    O&O Activiteiten van de Vlaamse bedrijven

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    no isbnedition: 2015status: publishe

    Seabirds supply nitrogen to reefbuilding corals on remote Pacific islets

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    International audienceSeabirds concentrate nutrients from large marine areas on their nesting islands playing an important ecological role in nutrient transfer between marine and terrestrial ecosystems. Here we investigate the role of guano on corals reefs across scales by analyzing the stable nitrogen isotopic (ÎŽ15N) values of the scleractinian coral Pocillopora damicornis on fringing reefs around two Pacific remote islets with large seabird colonies. Marine stations closest to the seabird colonies had higher nitrate + nitrite concentrations compared to more distant stations. Coral and zooxanthellae ÎŽ15N values were also higher at these sites, suggesting that guano-derived nitrogen is assimilated into corals and contributes to their nitrogen requirements. The spatial extent of guano influence was however restricted to a local scale. Our results demonstrate that seabird-derived nutrients not only spread across the terrestrial ecosystem, but also affect components of the adjacent marine ecosystem. Further studies are now needed to assess if this nutrient input has a positive or negative effect for corals. Such studies on remote islets also open fresh perspectives to understand how nutrients affect coral reefs isolated from other anthropogenic stressors

    Vlaams Indicatorenboek 2019

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    Het Vlaams Indicatorenboek 2019 is een uitgave van het Expertisecentrum O&O Monitoring van de Vlaamse Gemeenschap in opdracht van de Vlaamse minister van Werk, Economie, Innovatie, en Sport en van de Vlaamse minister van Onderwijsstatus: publishe

    OF-Pelvis classification of osteoporotic sacral and pelvic ring fractures

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    Objectives Osteoporotic fractures of the pelvis (OFP) are an increasing issue in orthopedics. Current classification systems (CS) are mostly CT-based and complex and offer only moderate to substantial inter-rater reliability (interRR) and intra-rater reliability (intraRR). MRI is thus gaining importance as a complement. This study aimed to develop a simple and reliable CT- and MRI-based CS for OFP. Methods A structured iterative procedure was conducted to reach a consensus among German-speaking spinal and pelvic trauma experts over 5 years. As a result, the proposed OF-Pelvis CS was developed. To assess its reliability, 28 experienced trauma and orthopedic surgeons categorized 25 anonymized cases using X-ray, CT, and MRI scans twice via online surveys. A period of 4 weeks separated the completion of the first from the second survey, and the cases were presented in an altered order. While 13 of the raters were also involved in developing the CS (developing raters (DR)), 15 user raters (UR) were not deeply involved in the development process. To assess the interRR of the OF-Pelvis categories, Fleiss' kappa (kappa(F)) was calculated for each survey. The intraRR for both surveys was calculated for each rater using Kendall's tau (tau(K)). The presence of a modifier was calculated with kappa(F) for interRR and Cohen's kappa (kappa(C)) for intraRR. Results The OF-Pelvis consists of five subgroups and three modifiers. Instability increases from subgroups 1 (OF1) to 5 (OF5) and by a given modifier. The three modifiers can be assigned alone or in combination. In both surveys, the interRR for subgroups was substantial: kappa(F) = 0.764 (Survey 1) and kappa(F) = 0.790 (Survey 2). The interRR of the DR and UR was nearly on par (kappa(F) Survey 1/Survey 2: DR 0.776/0.813; UR 0.748/0.766). The agreement for each of the five subgroups was also strong (kappa(F) min.-max. Survey 1/Survey 2: 0.708-0.827/0.747-0.852). The existence of at least one modifier was rated with substantial agreement (kappa(F) Survey 1/Survey 2: 0.646/0.629). The intraRR for subgroups showed almost perfect agreement (tau(K) = 0.894, DR: tau(K) = 0.901, UR: tau(K) = 0.889). The modifier had an intraRR of kappa(C) = 0.684 (DR: kappa(C) = 0.723, UR: kappa(C) = 0.651), which is also considered substantial. Conclusion The OF-Pelvis is a reliable tool to categorize OFP with substantial interRR and almost perfect intraRR. The similar reliabilities between experienced DRs and URs demonstrate that the training status of the user is not important. However, it may be a reliable basis for an indication of the treatment score

    Traumatic brain injury : integrated approaches to improve prevention, clinical care, and research

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    Rahul Raj on työryhmÀn InTBIR Participants Investigators jÀsen.Peer reviewe

    Heart rate dynamics after combined strength and endurance training in middle-aged women: Heterogeneity of responses.

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    The loss of complexity in physiological systems may be a dynamical biomarker of aging and disease. In this study the effects of combined strength and endurance training compared with those of endurance training or strength training alone on heart rate (HR) complexity and traditional HR variability indices were examined in middle-aged women. 90 previously untrained female volunteers between the age of 40 and 65 years completed a 21 week progressive training period of either strength training, endurance training or their combination, or served as controls. Continuous HR time series were obtained during supine rest and submaximal steady state exercise. The complexity of HR dynamics was assessed using multiscale entropy analysis. In addition, standard time and frequency domain measures were also computed. Endurance training led to increases in HR complexity and selected time and frequency domain measures of HR variability (P<0.01) when measured during exercise. Combined strength and endurance training or strength training alone did not produce significant changes in HR dynamics. Inter-subject heterogeneity of responses was particularly noticeable in the combined training group. At supine rest, no training-induced changes in HR parameters were observed in any of the groups. The present findings emphasize the potential utility of endurance training in increasing the complex variability of HR in middle-aged women. Further studies are needed to explore the combined endurance and strength training adaptations and possible gender and age related factors, as well as other mechanisms, that may mediate the effects of different training regimens on HR dynamics.peerReviewe
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