Mario Schmidt
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Comparing expert assessments of research quality between the Global North and East Africa Open
This study investigates how expert assessments of the quality of behavioural science research vary across geographic and epistemic contexts. Using a form of structured peer review called the IDEA protocol, we use data from the repliCATS pr…
Comparing expert assessments of research quality between the Global North and East Africa Open
This study investigates how expert assessments of the quality of behavioral science research vary across geographic and epistemic contexts. Using a form of structured peer review called the IDEA protocol, we use data from the repliCATS pro…
A comprehensive quantitative study of organic contaminants in marine plastics Open
Marine plastics act as carriers for a wide range of chemical contaminants, many of which pose serious environmental and health risks. This study investigated organic contaminants such as benzotriazole UV stabilizers (BUVs), phthalates, pol…
Intertemporal Allocation of Recycling for Long-Lived Materials from Energy Infrastructure Open
Energy conversion and infrastructure facilities consist of large amounts of metal and have lifetimes of several decades. When recycling metals, the methods of allocation play a decisive role in evaluating how primary and secondary material…
Investigating Alternative Solvents Regarding Extractability of Lipophilic Food Ingredients in Spinach-Tomato Powder and Algae Materials Open
Extraction of natural products such as carotenoids, vitamin E and chlorophylls is still accompanied with certain challenges. Limitations exist in widespread availability of sophisticated techniques (e.g. supercritical fluid), which are oft…
Gold from copper mining as a case study for allocation in life cycle assessment Open
Allocation in multi-output life cycle assessment (LCA) systems has been extensively discussed in literature. Common approaches to address allocation include system subdivision or expansion, physical cause-and-effect relationships, and dist…
Integration of Recent Prospective LCA Developments into Dynamic LCA of Circular Economy Strategies for Wind Turbines Open
This study builds a bridge between the advancements from prospective life cycle assessments (pLCAs) and dynamic life cycle assessments (dLCAs) to improve the evaluation of circular economy (CE) strategies for long-lived products such as en…
Citizen ethnography: co-producing evidence for development Open
Global development research is changing. Alongside calls for better evidence about what is effective (Forscher & Schmidt, 2024), different stakeholders – from funders and research organizations to participants and beneficiaries – increasin…
Can high-quality polymers be recovered from marine plastics using solvent-based recycling processes – and thus decontaminate plastic waste? Open
Recycling marine (ocean and beach) plastics is essential for reducing pollution, conserving resources, and lessening the environmental impacts of plastic production and waste. Traditional recycling methods, however, struggle with the mixed…
Climate Change vs. Circular Economy: Challenges of the Most Common Route for Recycling Gold from WEEE Open
Gold production poses significant environmental challenges, including resource depletion, CO2 emissions, and toxic chemical usage. Similarly, improper WEEE management harms the environment. However, WEEE contains valuable metals such as go…
Carbon Footprint of Additively Manufactured Precious Metals Products Open
Traditionally, precious metals are processed by either lost-wax casting or the casting of semi-finished products followed by cold or hot working, machining, and surface finishing. Long process chains usually conclude in a high material inp…
Tax Awareness and Fiscal Workarounds in Contemporary Kenya: Reactions Towards New Taxation Laws, and the Need to Renew the Social Contract Open
This working paper highlights the awareness and perception of taxes among ordinary Kenyans, with a particular focus on how they situate taxes in their wider universe of obligatory payments. The paper first describes how Kenyans understand …
A better how: notes on developmental meta-research Open
The past decade has raised concerns about how research is conducted, evaluated, and disseminated. Fuelled by the replication crisis in psychology and allied disciplines, these concerns have spawned a movement that unites scholars from acro…
Cultivating Resilience: Promoting Investment in Alternative Agricultural Products for Enhanced Food Security in Kenya Open
This position paper explores the importance of promoting investment in alternative agricultural products in Kenya to enhance food security and foster a resilient food system. The paper analyzes the current state of maize production and con…
4. Investing in Male Sociality and Wasteful Masculinity Open
Re: Pap onge kun (Dholuo, 'No hard feelings on the playing field').In the aforementioned, pap means an open field for celebrations and fun-making such as dancing, feasting, wrestling […] with the expected results being joy and laughter suc…
Migrants and Masculinity in High-Rise Nairobi Open
This series is open to submissions that examine urban growth and its delivery and impact on existing and new populations in relation to the key issues of the moment, such as climate control, sustainability and migration.Showcasing cutting-…
Migrants and Masculinity in High-Rise Nairobi Open
Examines how young male migrants in urban Nairobi navigate the tension between expectations of success and repetitive failure. Pipeline is a low-income, high-rise-tenement settlement in Nairobi's marginalized East and one of sub-Saharan Af…
Migrants and Masculinity in High-Rise Nairobi Open
Pipeline is a low-income, high-rise-tenement settlement in Nairobi's marginalized East and one of sub-Saharan Africa's most densely populated estates. An aspirational place where fleeting forms of capitalist consumption reassure migrants o…
View article: Mercury and CO2 emissions from artisanal gold mining in Brazilian Amazon rainforest
Mercury and CO2 emissions from artisanal gold mining in Brazilian Amazon rainforest Open
The Tapajós River basin in Brazil is one of the world’s regions most affected by artisanal gold mining (ASGM), which is responsible for the release of mercury and high energy consumption. Mercury, mixed with gold-containing materials and t…
Insights on mercury and energy consumption from in-situ measurements of artisanal gold mining in Brazilian Amazon rainforest Open
The Tapajós River basin in Brazil is one of the worlds most affected regions by artisanal gold mining (ASGM). Its environmental problems include the release of mercury, deforestation and energy consumption. However, measures to recover mer…
Life cycle impact on climate change caused by metal production from deep sea manganese nodules versus land-based deposits Open
At the "UN Climate Change Conference" (COP27), France called for a ban on deep sea mining. The topic has gained momentum over the last years as some businesspeople and politicians are promoting the mining of manganese nodules as a less CO2…