25 research outputs found

    Data literacy on the road: Setting up a large-scale data literacy initiative in the DataBuzz project

    Get PDF
    This paper presents the DataBuzz Project. DataBuzz is a high-tech, mobile educational lab, which is housed in a 13-meter electric bus. Its specific goal is to increase the data literacy of different segments of society in the Brussels region through inclusive and participatory games and workshops. In this paper, we will explore how to carry out practical data literacy initiatives geared to the general public. We discuss the different interactive workshops, which have been specifically developed for DataBuzz. We highlight the background, design choices, and execution of this large-scale data literacy initiative. We describe the factors that need to be taken into account to reach successful execution for such an ambitious project and the actions undertaken to become a long-term, sustainable solution. Throughout the article, we use the Data Literacy Competence Model as an analytical lens to analyse individual projects on data literacy and DataBuzz as an integrated project

    Equine epidermis : a source of epithelial-like stem/progenitor cells with in vitro and in vivo regenerative capacities

    Get PDF
    Besides the presence of somatic stem cells in hair follicles and dermis, the epidermis also contains a subpopulation of stem cells, reflecting its high regenerative capacity. However, only limited information concerning epidermis-derived epithelial-like stem/progenitor cells (EpSCs) is available to date. Nonetheless, this stem cell type could prove itself useful in skin reconstitution after injury. After harvesting from equine epidermis, the purified cells were characterized as EpSCs by means of positive expression for CD29, CD44, CD49f, CD90, Casein Kinase 2, p63, and Ki67, low expression for cytokeratin (CK)14 and negative expression for CD105, CK18, Wide CK, and Pan CK. Furthermore, their self-renewal capacity was assessed in adhesion as well as in suspension. Moreover, the isolated cells were differentiated toward keratinocytes and adipocytes. To assess the regenerative capacities of EpSCs, six full-thickness skin wounds were made: three were treated with EpSCs and platelet-rich-plasma (EpSC/PRP-treated), while the remaining three were administered carrier fluid alone (PRP-treated). The dermis of EpSC/PRP-treated wounds was significantly thinner and exhibited more restricted granulation tissue than did the PRP-treated wounds. The EpSC/PRP-treated wounds also exhibited increases in EpSCs, vascularization, elastin content, and follicle-like structures. In addition, combining EpSCs with a PRP treatment enhanced tissue repair after clinical application

    Equine allogeneic chondrogenic induced mesenchymal stem cells are an effective treatment for degenerative joint disease in horses

    Get PDF
    Degenerative joint disease is one of the main causes of equine early retirement from pleasure riding or a performance career. The disease is initially triggered by an abnormal loading of normal cartilage or a normal loading of abnormal cartilage. This primary insult is accompanied with joint inflammation, which leads to further progressive degeneration of the articular cartilage and changes in the surrounding tissues. Therefore, in search for an effective treatment, 75 adult horses with early signs of degenerative fetlock joint disease were enrolled in a randomized, multicenter, double-blinded, and placebo-controlled study. Fifty animals were injected intra-articularly with the investigational veterinary product (IVP) consisting of allogeneic chondrogenic induced mesenchymal stem cells (ciMSCs) with equine allogeneic plasma, and 25 horses were injected with 0.9% NaCl (saline) control product. From week 3 to 18 after treatment, lameness scores (P<0.001), flexion test responses (P<0.034), and joint effusion scores (P<0.001) were remarkably superior in IVP-treated horses. Besides nasal discharge in both treatment groups, no adverse events were observed during the entire study period. On long-term follow-up (1 year), significantly more investigational product-treated horses were working at training level or were returned to their previous level of work (P<0.001)

    Study protocol for a randomized controlled trial : prophylactic swallowing exercises in head-and-neck cancer patients treated with (chemo)radiotherapy (PRESTO trial)

    Get PDF
    Background: Dysphagia is a common and serious complication after (chemo)radiotherapy (CRT) for head-and-neck cancer (HNC) patients. Prophylactic swallowing exercises (PSE) can have a significantly positive effect on post-treatment swallowing function. However, low adherence rates are a key issue in undermining this positive effect. This current randomized trial will investigate the effect of adherence-improving measures on patients' swallowing function, adherence and quality of life (QOL). Methods: This ongoing trial will explore the difference in adherence and swallowing-related outcome variables during and after PSE in HNC patients performing the same therapy schedule, receiving different delivery methods. One hundred and fifty patients treated in various hospitals will be divided into three groups. Group 1 performs PSE at home, group 2 practices at home with continuous counseling through an app and group 3 receives face-to-face therapy by a speech and language pathologist. The exercises consist of tongue-strengthening exercises and chin-tuck against resistance with effortful swallow. The Iowa Oral Performance Instrument and the Swallowing Exercise Aid are used for practicing. Patients are evaluated before, during and after treatment by means of strength measurements, swallowing and QOL questionnaires. Discussion: Since low adherence rates undermine the positive impact of PSE on post-treatment swallowing function, there is need to develop an efficient PSE protocol maximizing adherence rates

    Computed tomographic myelography for assessment of the cervical spinal cord in ataxic warmblood horses : 26 cases (2015-2017)

    No full text
    OBJECTIVE : To quantify the degree of dural compression and assess the association between site and direction of compression and articular process (AP) size and degree of dural compression with CT myelography. ANIMALS : 26 client-oriented horses with ataxia. PROCEDURES : Spinal cord-to-dura and AP-to-cross-sectional area of the C6 body ratios (APBRs) were calculated for each noncompressive site and site that had > 50% compression of the subarachnoid space. Site of maximum compression had the largest spinal cord-to-dura ratio. Fisher exact test and linear regression analyses were used to assess the association between site and direction of compression and mean or maximum APBR and spinal cord-to-dura ratio, respectively. RESULTS : Mean +/- SD spinal cord-to-dura ratio was 0.31 +/- 0.044 (range, 0.20 to 0.41) for noncompressive sites and 0.44 +/- 0.078 (0.29 to 0.60) for sites of maximum compression. Sites of maximum compression were intervertebral and extra-dural, most frequently at C6 through 7 (n = 10), followed by C3 through 4 (6). Thirteen horses had dorsolateral and lateral compression at the AP joints, secondary to AP (n = 7) or soft tissue proliferation (6). Site significantly affected direction of compression, and directions of compression from occiput through C4 were primarily ventral and lateral, whereas from C6 through T1 were primarily dorsal and dorsolateral. No linear relationship was identified between mean or maximum APBR and spinal cord-to-dura ratio. CONCLUSIONS AND CLINICAL RELEVANCE : CT myelography may be useful for examination of horses with suspected cervical compressive myelopathy. Degree of compression can be assessed quantitatively, and site of compression significantly affected direction of compression

    Intravenous application of allogenic peripheral blood-derived mesenchymal stem cells : a safety assessment in 291 equine recipients

    No full text
    It has been reported that mesenchymal stem cells (MSCs) have homing capacities and immunomodulating effects after an intravenous injection. However, transplanting MSCs in murine tail veins can result in pulmonary reactions and even death of the animals. Unfortunately, only a few intravenous MSC transplantations have been reported in large animal species and these were performed in a limited number of individuals. To assess the safety of MSC transplantations, a large study on 291 recipient horses is reported here. MSCs were isolated from the peripheral blood (PB) of a 4-year-old and 6-year-old donor horse after having tested their PB for a wide range of transmittable diseases. The MSC samples from both donor horses were characterized and resuspended in 1ml of Dulbecco's Modified Eagle Medium (DMEM) supplemented with 10% Dimethyl Sulfoxide (DMSO). After hand-thawing in the field, 291 horses with ages ranging from 3-months to 33-years were directly injected into their jugular vein. 281 horses (97%) received a single injection of a physiological dose of 0.2 x 10(6) MSCs, 5 horses (1.7%) were re-injected after approximately 6 weeks (using the same dose and donor cells) and a single superphysiological dose of 10(6) MSCs was administered to 5 horses as well. In total, 176 recipients were injected with MSCs from the 4-year-old donor and 115 recipients received MSCs from the 6-year-old donor. From all the injected horses (n=291) no acute clinical adverse effects were noticed. Apart from one horse that died of colic 7 months after the treatment, no deaths were registered and all the horses were monitored for 1 year after the injection. In conclusion, no adverse effects were noticed in 291 recipients after an intravenous injection of allogenic PB-derived MSCs. Nevertheless, further research is warranted in order to verify the immunogenic properties of these cells after allogenic transplantation into various (patho)physiological sites

    fMRI Evidence for the Involvement of the Procedural Memory System in Morphological Processing of a Second Language

    Get PDF
    Behavioural evidence suggests that English regular past tense forms are automatically decomposed into their stem and affix (played = play+ed) based on an implicit linguistic rule, which does not apply to the idiosyncratically formed irregular forms (kept). Additionally, regular, but not irregular inflections, are thought to be processed through the procedural memory system (left inferior frontal gyrus, basal ganglia, cerebellum). It has been suggested that this distinction does not to apply to second language (L2) learners of English; however, this has not been tested at the brain level. This fMRI study used a masked-priming task with regular and irregular prime-target pairs (played-play/kept-keep) to investigate morphological processing in native and highly proficient late L2 English speakers. No between-groups differences were revealed. Compared to irregular pairs, regular pairs activated the pars opercularis, bilateral caudate nucleus and the right cerebellum, which are part of the procedural memory network and have been connected with the processing of morphologically complex forms. Our study is the first to provide evidence for native-like involvement of the procedural memory system in processing of regular past tense by late L2 learners of Englis

    Regenerative therapies for equine degenerative joint disease: a preliminary study

    Get PDF
    Degenerative joint disease (DJD) is a major cause of reduced athletic function and retirement in equine performers. For this reason, regenerative therapies for DJD have gained increasing interest. Platelet-rich plasma (PRP) and mesenchymal stem cells (MSCs) were isolated from a 6-year-old donor horse. MSCs were either used in their native state or after chondrogenic induction. In an initial study, 20 horses with naturally occurring DJD in the fetlock joint were divided in 4 groups and injected with the following: 1) PRP; 2) MSCs; 3) MSCs and PRP; or 4) chondrogenic induced MSCs and PRP. The horses were then evaluated by means of a clinical scoring system after 6 weeks (T1), 12 weeks (T2), 6 months (T3) and 12 months (T4) post injection. In a second study, 30 horses with the same medical background were randomly assigned to one of the two combination therapies and evaluated at T1. The protein expression profile of native MSCs was found to be negative for major histocompatibility (MHC) II and p63, low in MHC I and positive for Ki67, collagen type II (Col II) and Vimentin. Chondrogenic induction resulted in increased mRNA expression of aggrecan, Col II and cartilage oligomeric matrix protein (COMP) as well as in increased protein expression of p63 and glycosaminoglycan, but in decreased protein expression of Ki67. The combined use of PRP and MSCs significantly improved the functionality and sustainability of damaged joints from 6 weeks until 12 months after treatment, compared to PRP treatment alone. The highest short-term clinical evolution scores were obtained with chondrogenic induced MSCs and PRP. This study reports successful in vitro chondrogenic induction of equine MSCs. In vivo application of (induced) MSCs together with PRP in horses suffering from DJD in the fetlock joint resulted in a significant clinical improvement until 12 months after treatment

    Screening van het beleidsinstrumentarium inzake cultuureducatie binnen de beleidsvelden Cultuur en Jeugd

    No full text
    In het kader van de conceptnota 'Groeien in cultuur' werd in het najaar van 2012 een gelijknamige commissie van experten belast met een tweeledige opdracht. Met het oog op de optimalisering van het beleidsinstrumentarium m.b.t. cultuureducatie binnen de beleidsvelden cultuur en jeugd, kregen zij de vraag: - de verschillende bestaande beleidsinstrumenten (naast sectorale en transversale decreten ook andere regelgeving en concrete beleidsmaatregelen) te screenen, en de huidige beoordelings- en evaluatiecriteria op vlak van cultuureducatie te vergelijken; - concrete voorstellen voor een coherent en geïntegreerd kwaliteitskader rond cultuureducatie te formuleren. De bevindingen van de commissie kunnen aanleiding geven tot eventuele aanpassingen aan de regelgeving of andere beleidsaanpassingen – al dan niet ad hoc gebruik makend van geplande herzieningen – om de normen (b.v. in de beoordelingscriteria) over cultuureducatie sterker op elkaar af te stemmen. Maar in eerste instantie werd vooral gemikt op concrete suggesties voor een optimalere praktijkondersteuning en dossierbehandeling binnen de bestaande decretale kaders. Het kwaliteitskader moet toelaten om de gezamenlijke beleidsvisie vanuit cultuur, jeugd en onderwijs concreter vorm te geven, alsook om de rol van verschillende (sub)sectoren met betrekking tot cultuureducatie te expliciteren. Het streven naar een evenwichtig/dekkend veld naar discipline, leeftijd en grootte van de organisatie en aansluitend bij de noden van het onderwijs ligt in het verlengde daarvan.nrpages: 38status: publishe
    corecore