Presentation at ISSA Conference 2016 (International Sport Sociology Association): "Based on predominantly qualitative research, socio-critical sports sociologists from various (western) countries have in the past argued convincingly that heteronormativity and homophobia form early influences in organised competitive sport. In contrast, recent research indicates that homophobia is decreasing even in traditional male team sports such as football, and that acceptance of homosexuality is growing. However, research into the acceptance of homosexuality in the Netherlands shows that male teenagers who participate in sports are less tolerant than older participants. In this presentation, the main question treated is how young male participants in team sports experience forms of homonegativity and heteronormativity. To answer the research question, ethnographic research was conducted among young male participants in team sports. The results of this study shows that team sports in which young males and young adults take part can no longer be characterised as absolutely homophobic. At the same time, the findings show that homosexuality in these teams is still hardly a natural given, and that the acceptance is often fragile and conditional. Although the dominant forms of interaction may not be explicitly homonegative (any longer), they are still often hetero- and gender-normative."
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Objectives: The strategy for dynamic postural stability might be different for male and female players. Additionally, dynamic and challenging tasks are recommended to measure differences in postural stability between injured and non-injured players. Therefore, the dynamic stability index (DSI) was developed which measures the ability of a player to maintain static balance after a dynamic task. The first aim of this study was to evaluate DSI differences between males and females for different jump directions. The second aim was to examine both preseason DSI differences between players with and without a history of ankle sprain, and between players with and without an ankle sprain during the subsequent season.Design: Prospective cohort design. Setting: Laboratory. Participants: 47 male (22.9 ± 3.9 y, 193.5 ± 7.9 cm, 87.1 ± 10.6) and 19 female (21.5 ± 2.9 y, 175.9 ± 7.3 cm, 69.0 ± 11.7 kg) sub-elite and elite basketball, volleyball and korfball players. Main outcome measures: Ankle sprain history was collected using a general injury history questionnaire. DSI on a single-leg hop-stabilization task measured preseason were calculated by using force plates and a Matlab program. Ankle sprains were reported during subsequent season. Results: Male players demonstrated larger DSI than female players on forward medial/lateral stability index (MLSI) (0.037± 0.007 vs 0.029 ± 0.005) and vertical stability index (VSI) (0.369 ± 0.056 vs 0.319 ± 0.034) (p < 0.001), diagonal VSI (0.363 ± 0.046 vs 0.311 ± 0.033) (p < 0.001), and lateral anterior/posterior stability index (APSI) (0.062 ± 0.015 vs 0.047 ± 0.011) and VSI (0.350 ± 0.054 vs 0.294 ± 0.037) (p < 0.001). Forward (0.384 ± 0.055 vs 0.335 ± 0.033), diagonal (0.379 ± 0.046 vs 0.328 ± 0.032) and lateral (0.368 ± 0.053 vs 0.313 ± 0.035) dynamic postural stability indices (DPSI) were larger for males (p < 0.001). No significant differences were found between players with and without a previous ankle sprain nor between players with and without an ankle sprain during subsequent season.
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PurposeThe paradigm “think entrepreneur–think male” continues to prevail in entrepreneurship education (EE). Aiming to explore how EE educators and EE students engage with this paradigm, this paper examines how students’ beliefs about entrepreneurship are shaped within the classroom.Design/methodology/approachThis study is based on a single case comprising 32 interviews with EE students and educators from a variety of higher education institutions in the Netherlands. Observations were conducted in a learning environment where undergraduate students from a range of EE minors (general, social and tech entrepreneurship) collaborated on projects under the guidance of entrepreneurship educators.FindingsOur findings reveal that gendered constructs are deeply embedded in EE, shaping perceptions of entrepreneurship. However, these constructs are changing and challenging the “think entrepreneur–think male”.Originality/valueThis study contributes to gender and entrepreneurship literature by challenging the existence of the prevailing paradigm “think entrepreneur–think male” in EE. We emphasise the importance of acknowledging individual entrepreneurial motivations while recognising gendered constructs in entrepreneurial support and resource access.
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De vraag: ‘Zal kunstmatige intelligentie (AI) mijn werk vervangen?’ is steeds vaker te horen, specifiek ook onder artsen in ziekenhuizen. AI wordt tegenwoordig ingezet voor allerlei doeleinden in de zorg, variërend van diagnoses stellen tot opereren. De belofte is dat AI de zorg efficiënter en nauwkeuriger maakt, maar er heerst ook onzekerheid onder artsen over de impact op hun werk. Om de vaak gestelde vraag te kunnen beantwoorden of en hoe AI het werk van de arts vervangt, is inzicht nodig in wat dat werk precies inhoudt. Daarvoor introduceren we het woord ‘vakmanschap’. Vakmanschap staat voor bekwaamheid in een vak. We onderzoeken hoe AI het vakmanschap van de arts beïnvloedt en houden rekening met diverse medische specialismen en typen AI. Vervolgens maken we de vertaalslag naar hoe impact van AI op vakmanschap mee te nemen in een verantwoord ontwerp- en implementatieproces van AI. Ons consortium vertegenwoordigt de stem van de arts in ziekenhuizen, het perspectief rondom ‘vakmanschap’ en een veranderende arbeidsmarkt, het perspectief van de AI-ontwikkelaar, de methodische kennis rondom de KEM Ethiek & Verantwoordelijkheid en het mensgericht ontwerpen perspectief. Uiteindelijk beogen we zorg duurzaam te kunnen verlenen met een optimale interactie tussen arts en AI.
Nederland is een belangrijke speler op de wereldwijde rozenmarkt. In 2023 exporteerde het land rozen ter waarde van 939 miljoen dollar, waarmee het de grootste exporteur ter wereld was ( (OECtoday, 2024). Rozenkwekers worden geconfronteerd met aanzienlijke uitdagingen, waaronder de verwoestende impact van ziekten zoals valse meeldauw, die zich onder gunstige omstandigheden snel kunnen verspreiden en ernstige oogstverliezen veroorzaken. Valse meeldauw vormt een ernstige bedreiging voor rozen, aangezien vooral buitenteelt onderhevig is aan weersinvloeden zoals hoge luchtvochtigheid, temperatuurschommelingen en regenval, die de verspreiding van de schimmel aanzienlijk bevorderen. De infectie leidt tot bladverlies, groeivertraging en een significante verslechtering van de bloemkwaliteit, wat resulteert in aanzienlijke economische schade voor telers. Dit project richt zich op de ontwikkeling van een geavanceerd AI-gebaseerd beeldherkenningssysteem dat specifiek is ontworpen voor het vroegtijdig detecteren van valse meeldauw (Peronospora sparsa) op rozen in de buitenteelt. Traditioneel worden chemische fungiciden ingezet, maar deze aanpak is zowel milieubelastend als inefficiënt op de lange termijn, mede door de ontwikkeling van resistentie bij de schimmel. Ons project beoogt daarom een duurzame, niet-chemische oplossing door middel van gerichte ultraviolet-bestraling (UV-C). De reeds ontwikkelde robot Alpha Ceres, die autonoom door rozenvelden navigeert met behulp van Real-Time-Kinematic (RTK) GPS, zal in de toekomst als draagplatform dienen voor deze technologie. In de eerste fase ligt de focus op de ontwikkeling van een robuust AI-algoritme voor herkenning van geïnfecteerde bladeren en het bepalen van hun positie. Daarnaar volgt het nauwkeurig bepalen van optimale UV-C-instellingen en laboratoriumtesten met geïnfecteerde planten. Er zal een proof-of-concept worden gerealiseerd met een opstelling bestaande uit een lopende band, camera’s en een actuator die de lamp naar de plant toe beweegt, welke beschikbaar is bij het GreenTechLab. Dit vormt de basis voor de overstap naar Alpha Ceres.
Micro and macro algae are a rich source of lipids, proteins and carbohydrates, but also of secondary metabolites like phytosterols. Phytosterols have important health effects such as prevention of cardiovascular diseases. Global phytosterol market size was estimated at USD 709.7 million in 2019 and is expected to grow with a CAGR of 8.7% until 2027. Growing adoption of healthy lifestyle has bolstered demand for nutraceutical products. This is expected to be a major factor driving demand for phytosterols. Residues from algae are found in algae farming and processing, are found as beachings and are pruning residues from underwater Giant Kelp forests. Large amounts of brown seaweed beaches in the province of Zeeland and are discarded as waste. Pruning residues from Giant Kelp Forests harvests for the Namibian coast provide large amounts of biomass. ALGOL project considers all these biomass residues as raw material for added value creation. The ALGOL feasibility project will develop and evaluate green technologies for phytosterol extraction from algae biomass in a biocascading approach. Fucosterol is chosen because of its high added value, whereas lipids, protein and carbohydrates are lower in value and will hence be evaluated in follow-up projects. ALGOL will develop subcritical water, supercritical CO2 with modifiers and ethanol extraction technologies and compare these with conventional petroleum-based extractions and asses its technical, economic and environmental feasibility. Prototype nutraceutical/cosmeceutical products will be developed to demonstrate possible applications with fucosterol. A network of Dutch and African partners will supply micro and macro algae biomass, evaluate developed technologies and will prototype products with it, which are relevant to their own business interests. ALGOL project will create added value by taking a biocascading approach where first high-interest components are processed into high added value products as nutraceutical or cosmeceutical.
Lectoraat, onderdeel van NHL Stenden Hogeschool
