The platform for open and practice-oriented research

Products 10.000

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Structural localisation of catalytic H2O2 oxidation sites in starch

The catalytic oxidation of potato starch by [MnIV2 (μ-O)3(tmtacn)2][H2O](CH3COO)2 (Mncat, with tmtacn =1,4,7-trimethyl-1,4,7-triazacyclononane) with H2O2, was recently introduced as a promising alternative to ubiquitous sodium hypochlorite (NaOCl). Here, we report an in-depth investigation into interactions of the catalyst with the starch granule. Pitted starches obtained by pre-treatment with high-frequency ultrasound (HFUS) were shown to result in a uniquely homogeneous oxidation. To study this further, fractionation of oxidised potato starch was done which showed a preference for the oxidation of smaller granules with a higher relative surface area. This result was corroborated by chemical surface gelatinisation of fractionated granules. These studies showed that the inside of the granules was oxidised, but that Mncat had a moderate preference for oxidation of the periphery. Together, these results allow for a better understanding of oxidation of starch by Mncat and how it differs from NaOCl oxidation making further optimisation of the process possible.

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Structural localisation of catalytic H2O2 oxidation sites in starch

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In Situ Assessment of Uplink Duty Cycles for 4G and 5G Wireless Communications

In this presented study, we measured in situ the uplink duty cycles of a smartphone for 5G NR and 4G LTE for a total of six use cases covering voice, video, and data applications. The duty cycles were assessed at ten positions near a 4G and 5G base-station site in Belgium. For Twitch, VoLTE, and WhatsApp, the duty cycles ranged between 4% and 22% in time, both for 4G and 5G. For 5G NR, these duty cycles resulted in a higher UL-allotted time due to time division duplexing at the 3.7 GHz frequency band. Ping showed median duty cycles of 2% for 5G NR and 50% for 4G LTE. FTP upload and iPerf resulted in duty cycles close to 100%.

MULTIFILE

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PLG's Basisvaardigheden Quadraam

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Oral health care in older people in long-term care facilities: An updated systematic review and meta-analyses of implementation strategies

Introduction: Oral health care of older people in long-term care facilities is insufficient, stressing the need for clear evidence-based implementation strategies to improve oral care. In 2013, a systematic review was performed and new evidence was published. This study aimed to gain insights into implementation strategies used to promote or improve oral health care for older people in long-term care facilities, explore their effectiveness and uncover strategy content in behavioral change techniques, and report the differences between the current results and those of the 2013 study. Methods: A systematic review of the literature according to PRISMA guidelines and meta-analyses of implementation strategies were performed. Cochrane Library, PubMed, and CINAHL databases were searched for papers published between 2011 and 2023. Strategies were identified using the Coding Manual for Behavioral Change Techniques. Meta-analyses of oral health outcomes (“plaque” and “denture plaque”) were performed with random-effects models using R language for statistical computing. Results: 16 studies were included in the current results; 20 studies were included in the 2013 findings. More high-quality studies (67 %) were included in this review than in 2013 (47 %). Dental care professionals were involved in 14 of the 16 studies. Fourteen of the 16 studies used and/ or combined five or more different implementation strategies: knowledge, intention, awareness, self-efficacy, attitude, and facilitation of behavior. Implementation positively affected the knowledge and attitudes of the nursing staff; however, the oral health of older people did not necessarily improve. In the 2013 review, more studies indicated combined oral health measurements were effective (71 %) than in the current review (20 %–33 %). Meta-analysis of four studies on dental plaque (0—3 scale) showed a significant, statistically small mean difference of -.21 (CI -.36; -.07, Cohen's d -.29) between the control and treatment group. Meta-analysis of three studies on denture plaque (0—4 scale), showed a significant, statistically large mean difference of -.76 (CI -1.48; -.05, Cohen's d -.88). Conclusions: In this review, more implementation strategies and combinations were used to implement oral care in long-term care. Implementation strategies positively affected the knowledge and attitudes of nursing staff; however, the oral health of older people did not necessarily improve. Meta-analyses on plaque showed that oral care implementations are effective; for denture plaque, the effect size was large and thus may have more clinical value than for dental plaque.

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Disentangling regional policy paradigms

Regional development has often been described in economic terms, using economic indicators such as growth in GDP or demographic indicators such as net migration or employment. Some researchers argued that regional development should be understood broader, by including for example social indicators and living environment indicators . Recently, researchers have shown that policies directed towards regional development have broadened as well , but are also still evaluated within specific narratives or frameworks that often constitute the goals of the policy, for example the Keynesian framework favours increasing demand and favours the evaluation of policies aimed at exactly this. This self-constituting practice of an amalgam of related policies has also been referred to by Hall as a policy paradigm. Because policies are often evaluated within these policy paradigms it becomes difficult to decontextualise them, disentangle them and compare policies with each other.In this paper we propose to use a different, more quantitative and comparative method. By applying the above mentioned work from Andy Pike on numerous data sources from EUROSTAT and OECD, researchers from the PREMIUM_EU project developed a new framework that is measuring Regional Development (dubbed “R”) using economic, social and living environment indicators.MethodBy regarding this “R” (and individual indicators) as an outcome of public policies on the local, regional, national and international level and by analysing regional development policies on different levels from 2010 and onwards we believe it is possible to understand the impact of these policies in a more evidenced based sense, regardless of the above mentioned different types of narratives or frameworks.We started our research with an analysis from the OECD on the different types of regional development policies and the relations between different levels of government within countries. Based on this and literature research, we developed a framework with relevant topics for regional development policies and different levels of government.Based on the work of Moritz Schütz presented during the ERSA 2024 conference, we developed and employed a webcrawler to automatically download and summarise policies from municipalities, regional and national authorities and analyse the results of this exercise.Findings/resultsThe webcrawling and -mining exercise in combination with the new set of indicators will offer a much broader and more comprehensive view of the use and necessity of regional development policies. The findings will be discussed in dedicated policy labs with policymakers and researchers from the respective regions.Discussion/conclusionsBoth the new set of indicators and the analysis of the policies are not only innovative, but will also be viewed as speculative. Although we believe that a direct causal relationship between policies and the regional development will be hard to uncover, we do believe that this research will move the field of policy analysis forward, because it is more focused on evidence-based indicators and is based on larger sets of policies.

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Veerkracht, verbeelding en vernieuwing: patronen van innovatie in 33 innovatielabs-projecten

Wat kunnen we doen om de culturele en creatieve sector op langere termijnwendbaarder en weerbaarder te maken? Makers, culturele instellingen enandere creatieve partijen gingen met die vraag aan de slag binnen het pro-gramma Innovatielabs. Tijdens twee edities onderzochten zij hoe innovatie-projecten een verschil kunnen maken bij actuele én toekomstige opgavenin de sector. Van een fundamentele heroverweging van de eigen rol in hetculturele landschap tot de ontwikkeling van innovatieve, sectoroverstijgendesamenwerkingsplatforms. Er is nagedacht hoe instellingen publieksdata kunnendelen om hun doelgroepen beter te bereiken, hoe technologie kan wordeningezet om andere, nieuwe doelgroepen te bereiken en hoe samengewerktkan worden met niet-menselijke actoren voor een duurzamere toekomst.Het zijn natuurlijk mooie uitkomsten, maar met de afzonderlijke resultaten vandeze projecten alleen komen we er niet. Willen we de sector echt beter uit-rusten voor de toekomst, dan moeten we ook aandacht besteden aan deborging en inbedding van de opgedane kennis en ervaringen, op zo’n manierdat anderen erop kunnen voortbouwen. Met dat doel voor ogen, hebbenwe onderzoekers van verschillende kennisinstellingen gevraagd om de 33Innovatielabs-projecten te volgen. Aan de hand van thema’s brachten zijdwarsverbanden tussen de doelen en de gehanteerde methoden van dezeinitiatieven in kaart. Het onderzoek, dat is gefinancierd door Regieorgaan SIA,bleek op zichzelf ook een experiment en leertraject. Want hoe organiseerje kennisontwikkeling en -uitwisseling door en tussen al deze verschillendebetrokkenen en hoe zorg je ervoor dat de belangrijkste opbrengsten sector-breed kunnen worden gedeeld?In dit onderzoeksrapport delen de onderzoekers hun bevindingen. Hierinis niet alleen aandacht voor de resultaten, maar vooral ook voor de inno-vatieprocessen die tot deze resultaten hebben geleid. Daarmee biedt hetrapport inzichten en handvatten om op voort te bouwen. Want als we iets vanInnovatielabs hebben geleerd, dan is het wel dat we alleen door gezamenlijkekennisontwikkeling en -uitwisseling de uitdagingen die voor ons liggen hethoofd kunnen bieden. Dit rapport markeert dan ook niet alleen het einde van Innovatielabs, maar ook een nieuw begin.

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Veerkracht, verbeelding en vernieuwing: patronen van innovatie in 33 innovatielabs-projecten

People 5

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Daan Ornée

Docent-onderzoeker

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Sába Schramkó

Education Research Officer

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Erik Knol

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Sam Aerts

Associate lector

Projects 2

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Bamboo Europe

Van rietjes tot ondergoed, van tuinmeubelen tot tandenborstels, we zien het in steeds meer producten terug: bamboe. Het is een veelbelovende grondstof, kan veel CO2 opnemen en groeit snel. Veel bamboe wordt echter nog steeds geïmporteerd uit Azië. Maar daar lijkt nu, met de eerste grootschalige Europese bamboeplantages, een eind aan te komen. De nieuwe bamboe uit Europa heeft alleen een andere samenstelling dan de Aziatische variant, wat betekent dat er nog veel onduidelijk is. Is het mogelijk om de gehele waardeketen – van grondstof via verwerking, halffabricaat en ontwerp naar meubel – duurzaam vorm te geven en transparant te houden? Het ArtEZ lectoraat Tactical Design onderzoekt de mogelijkheden van in Europa geproduceerde bamboe – van zaadje tot tuinmeubel.Het lectoraat Tactical Design werkt in het kader van Bamboo Europe samen met BambooLogic, Wageningen University & Research, Nederlands Openluchtmuseum, Studio Joris Laarman, Studio Hanna Kooistra, Studio Joris de Groot, Studio met met en Beckeringh Design Amsterdam. Het project wordt gefinancierd door NWO/Regieorgaan SIA RAAK-mkb.Meer informatieMeer weten over Bamboo Europe, of zou je graag in contact komen met één van de betrokken onderzoekers? Neem dan contact op met Roos Wijnants (communicatiespecialist onderzoek) via r.wijnants@artez.nl.

Other

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Duurzame bestrijding van de varroamijt in de Nederlandse bijenhouderij.

https://www.sia-projecten.nl/project/duurzame-bestrijding-van-de-varroamijt-in-de-nederlandse-bijenhouderij

Other

Parties 2

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Aeres Hogeschool

University of Applied Sciences

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Hanze

University of Applied Sciences

Editorials 4

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Dit maakt winnaars tot winnaars, volgens de jury van de RAAK-awards

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Een koraalrijke toekomst dankzij de zee-egel Diadema antillarum

editorial

Van plantenwortel naar biobased verpakkingskleurstof

Products 10.000

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Structural localisation of catalytic H2O2 oxidation sites in starch

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