Social Enterprises face a significant challenge in improving their competitiveness without sacrificing their social objectives. Using an action research approach, we examine how the lean management tool 5S can be modified to fit the characteristics of the vulnerable workers involved in their operational processes. While 5S is typically applied to achieve efficiency, we find that the most important benefits of implementation for social enterprises are improvements in self-efficacy, ownership, and responsibility of the vulnerable workers. Other benefits were increased reliance on visual cues and reduced search time. Implementation of 5S highlighted the negative impact of circularity practices on operational efficiency.
Background: The diagnosis of sarcopenia is essential for early treatment of sarcopenia in older adults, for which assessment of appendicular lean mass (ALM) is needed. Multi-frequency bio-electrical impedance analysis (MF-BIA) may be a valid assessment tool to assess ALM in older adults, but the evidences are limited. Therefore, we validated the BIA to diagnose low ALM in older adults.Methods: ALM was assessed by a standing-posture 8 electrode MF-BIA (Tanita MC-780) in 202 community-dwelling older adults (age ≥ 55 years), and compared with dual-energy X-ray absorptiometry (DXA) (Hologic Inc., Marlborough, MA, United States; DXA). The validity for assessing the absolute values of ALM was evaluated by: (1) bias (mean difference), (2) percentage of accurate predictions (within 5% of DXA values), (3) the mean absolute error (MAE), and (4) limits of agreement (Bland-Altman analysis). The lowest quintile of ALM by DXA was used as proxy for low ALM (< 22.8 kg for men, < 16.1 kg for women). Sensitivity and specificity of diagnosing low ALM by BIA were assessed.Results: The mean age of the subjects was 72.1 ± 6.4 years, with a BMI of 25.4 ± 3.6 kg/m2, and 71% were women. BIA slightly underestimated ALM compared to DXA with a mean bias of -0.6 ± 1.2 kg. The percentage of accurate predictions was 54% with a MAE of 1.1 kg, and limits of agreement were -3.0 to + 1.8 kg. The sensitivity for ALM was 80%, indicating that 80% of subjects who were diagnosed as low ALM according to DXA were also diagnosed low ALM by BIA. The specificity was 90%, indicating that 90% of subjects who were diagnosed as normal ALM by DXA were also diagnosed as normal ALM by the BIA.Conclusion: This comparison showed a poor validity of MF-BIA to assess the absolute values of ALM, but a reasonable sensitivity and specificity to recognize the community-dwelling older adults with the lowest muscle mass.
Het doel van het project is om inzicht te krijgen in praktische en commerciële haalbaarheid rondom de Aquabooster van het bedrijf Wabbi dat eigendom is van studentondernemer Faik Durmus. Het onderzoek waaruit de Aquabooster is ontstaan is gedaan door studenten van de opleiding Biologie en Medisch Laboratoriumonderzoek aan de Saxion Hogeschool. Daarmee borduurt dit project voort op praktijkgericht onderzoek vanuit een kennisinstelling. De Aquabooster is het enige product van het bedrijf Wabbi. De Aquabooster reinigt herbruikbare flessen (zoals de Dopper®) van consumenten met als doel de levensduur te verlengen en de afvalberg te verlagen. Hiermee hoopt Wabbi bij te dragen aan SDG12: ‘Responsible consumption and production’. De belangrijkste projectactiviteiten om het doel te realiseren omvatten: a. Het bouwen van meerdere prototypes; b. Validatie van de prototypes in relevante fieldlabs teneinde feedback uit de markt te krijgen; c. Onderzoek naar Intellectueel Eigendom; d. Schrijven van een businessplan. Deze activiteiten moeten er toe leiden dat er een beeld ontstaat over de potentie van Wabbi met haar Aquabooster. Het project duurt 9 maanden en het budget bedraagt conform begroting €40.000. De projectpartners zijn: Wabbi, Het Saxion Centrum voor Ondernemerschap (penvoerder), de lectoraten Mechatronica en Industrial Design en een partner ten aanzien van het onderzoek naar Intellectueel Eigendom (wordt nog gezocht). Aanvullend worden studenten ingezet om feedback uit de markt te krijgen en deelsystemen te ontwikkelen.
Social enterprises (SEs) can play an important role in addressing societal problems. SEs are businesses whose primary objective is to generate social impact (e.g. well-being, social wealth and cohesion, and ecology) through a market-based model. SEs achieve this through a hybrid business model, trading-off financial and social value creation objectives. SEs typically face higher costs, for example because of ethical sourcing principles and/or production processes centering around the needs of workers who are vulnerable or hard-to-employ. This results in SEs’ struggling to scale-up due to their relatively costly operating model. Traditional management techniques are not always appropriate, as they do not take into account the tensions between financial and social value creation objectives of SEs. Our project examines how continuous improvement, and in particular the philosophy and tools of Lean can be harnessed to improve SEs competitiveness. Lean organizations share many values with SEs, such as respect for people, suggesting a good fit between the values and principles of Lean and those of SEs. The consortium for this project is a cooperation between the research groups Improving Business and New Marketing of the Center of Expertise Well-Being Economy and New Entrepreneurship and the minor Continuous Improvement of AVANS Hogeschool, and the SME companies Elliz in Company and Ons Label. The project consists of two phases, an exploratory phase during which the question “in what ways can the philosophy and tools of Lean be used by Social Enterprises?” will be addressed. Interviews and focus groups will be conducted with multiple SEs (not only partners). Participant observation will be conducted by the students of the minor Continuous Improvement at the partner SEs. During the second phase, the implementation of the identified principles and tools will be operationalized through a roadmap. Action research will be conducted in cooperation with the partner SEs.
Surface Active Agents, or surfactants, are chemicals which provide a surface (interface) activity when dispersed in liquids. They have different purposes, can be used as herbicides, anti-foaming agents, adhesives, cleaning agents and softeners. For cleaning purposes, their function is to alter (decrease) liquid surface tension. In this function they are ubiquitous in both industrial processes (cleaning of production equipment, storage vats, packaging lines, and cooking units either during the manufacturing process) and domestic applications. ProtoNeat proposes an alternative way to decrease water surface tension without adding chemicals (surfactants). This can be done by charging the water (producing protonically charged water) [2], i.e. positive and negative Bjerrum-defect like charges [3, 4]. This phenomenon was experimentally observed by Fuchs et al [5] in anolyte and catholyte when doing high voltage electrolysis of highly pure water during the so-called ‘floating water bridge’ experiment. The work done by the authors, when working with this “bridge”, showed that, in case of positive excess charge, the hydronium ions migrate to the surface [8] thereby significantly lowering the surface tension [9,10]. However, for how long this effect can be maintained and how effective it is to produce such water is still unknown. ProtoNeat wants to tackle these two questions and investigate whether a continuous production of protonically charged water as an environmentally friendly and sustainable cleaning agent is possible.
