De bestuiving van aubergine door insekten

Bij een goede bestuiving door insekten (bijen en hommels) geeft een wekelijkse bestuiving met groeistoffen geen extra opbrengst in vergelijking met alleen insektenbestuiving. Dit bleek uit een onderzoek dat is uitgevoerd door het Centraal Buro voor Tuinbouwveilinge

Current understanding of the mechanisms for clearance of apoptotic cells-a fine balance

Apoptosis is an important cell death mechanism by which multicellular organisms remove unwanted cells. It culminates in a rapid, controlled removal of cell corpses by neighboring or recruited viable cells. Whilst many of the molecular mechanisms that mediate corpse clearance are components of the innate immune system, clearance of apoptotic cells is an anti-inflammatory process. Control of cell death is dependent on competing pro-apoptotic and anti-apoptotic signals. Evidence now suggests a similar balance of competing signals is central to the effective removal of cells, through so called 'eat me' and 'don't eat me' signals. Competing signals are also important for the controlled recruitment of phagocytes to sites of cell death. Consequently recruitment of phagocytes to and from sites of cell death can underlie the resolution or inappropriate propagation of cell death and inflammation. This article highlights our understanding of mechanisms mediating clearance of dying cells and discusses those mechanisms controlling phagocyte migration and how inappropriate control may promote important pathologies. © the authors, publisher and licensee libertas academica limited

Varroabestrijding met bijenbroed als mijtenval (1)

Bij deze bestrijdingsmethode worden belegde darreraten uit een moergoede veger overgehangen naar het moerloze en later broedloze hoofdvolk. Hier worden de mijten die zich op de bijen bevinden gevangen. Nadat de laatste darreraat uit een hoofdvolk is verwijderd, wordt het bijenvolk met Perizine behandel

Good care during COVID-19: a narrative approach to care home staff's experiences of the pandemic

Due to its major impact on Dutch care homes for older people, the COVID-19 pandemic has presented care staff with unprecedented challenges. Studies investigating the experiences of care staff during the COVID-19 pandemic have shown its negative impact on their wellbeing. We aimed to supplement this knowledge by taking a narrative approach. We drew upon 424 personal narratives written by care staff during their work in a Dutch care home during the COVID-19 pandemic. Firstly, our results show that care staff have a relational-moral approach to good care. Residents' wellbeing is their main focus, which they try to achieve through personal relationships within the triad of care staff-resident-significant others (SOs). Secondly, our results indicate that caregivers experience the COVID-19 mitigation measures as obstructions to relational-moral good care, as they limit residents' wellbeing, damage the triadic care staff-residents-SOs relationship and leave no room for dialogue about good care. Thirdly, the results show that care staff experiences internal conflict when enforcing the mitigation measures, as the measures contrast with their relational-moral approach to care. We conclude that decisions about mitigation measures should be the result of a dialogic process on multiple levels so that a desired balance between practical good care and relational-moral good care can be determined