Filtyp
The problem of reconstructing a spatial sound field from microphone signals and a coarse, partial, and/or uncertain point cloud representation of the boundaries of the room is considered. This problem has downstream applications within sound field control for which precise reconstruction is essential. Typical for these applications is that only microphone measurements are considered, resulting in
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are becoming an increasingly global concern. PFASs are highly fluorinated organic chemicals that represent a serious risk for environmental and human health. Due to their toxicological impact, PFASs are now included in several emission regulations. Even if the global level of PFASs use is decreasing much of present concentrations in the environ
PFAAs emission to the environment represents a potential risk to human health. Although, long-term global scale fate and transport models have been used to investigate potential trends in environmental levels, temporal trends and transports mechanisms of PFAAs are not fully understood. Due to high solubility in water, the behaviour of PFAAs in soil is important for environmental fate estimation an
The influence of three organic compounds and bakers' dry yeast on growth of external mycelium and phosphorus uptake of the arbuscular mycorrhizal fungus Glomus intraradices Schenck and Smith (BEG 87) was examined. Two experiments were carried out in compartmentalized growth systems with root-free sand or soil compartments. The sand and soil in the root-free compartments were left untreated or unif
Soil microbes drive ecosystem function and play a critical role in how ecosystems respond to global change. Research surrounding soil microbial communities has rapidly increased in recent decades, and substantial data relating to phospholipid fatty acids (PLFAs) and potential enzyme activity have been collected and analysed. However, studies have mostly been restricted to local and regional scales
Studies in temperate systems provide evidence that the abundance of arbuscular mycorrhizal fungal (AMF) depends on soil nutrient availability, which is mainly explained in the context of resource stoichiometry and differential plant biomass allocation. We applied this concept to an understudied ecosystem - tropical montane forest - analyzing root and AMF abundance along an elevational gradient wit
Deforestation and the use of fire to clear land have drastic effects on ecosystem functioning and compromise essential ecosystem services, especially in low-income tropical countries such as Madagascar. We evaluated the effects of local slash-and-burn practices on soil nutrients and arbuscular mycorrhizal (AM) fungi abundance in a southwestern Madagascar forest. Nine sampling plot pairs were estab
Objective: Enhancing the reliability of myoelectric controllers that decode motor intent is a pressing challenge in the field of bionic prosthetics. State-of-the-art research has mostly focused on Supervised Learning (SL) techniques to tackle this problem. However, obtaining high-quality labeled data that accurately represents muscle activity during daily usage remains difficult. We investigate th
This paper presents a decentralized strategy for a team of N robotic manipulators cooperatively grasping and manipulating an object. A two-step strategy has been designed. In the first step, each robot runs N − 1 consensus-based estimators to estimates the wrenches applied to the object by its teammates even when direct all-to-all communication is unavailable. In the second step, each manipulator
This paper addresses the time-optimal path-tracking problem for redundant manipulators. By integrating path-velocity control into existing task-space robot controllers, the task-space motion can be dynamically scaled to satisfy the torque constraint under both kinematic and dynamic uncertainties. Numerical simulations and experiments demonstrate that trajectory feasibility and path-tracking accura
BACKGROUND: Children, adolescents, and young adults with cancer (referred to as CAYAs) are at risk of long-term health complications, with cardiovascular disease (CVD) being a major concern. In addition, sociodemographic characteristics and traditional cardiovascular risk factors may also contribute to disparities in outcomes compared with those of the general population. The aim of this study was
Denna avhandling undersöker oberoende kulturproduktion som idé(al) och fenomen, särskilt den centrala roll som samarbeten och ömsesidiga beroenden har för oberoende kulturaktörer. Samtida oberoende kulturproduktion både tillåter och kräver organisering i ett spänningsfält av olika förväntningar och begränsade rumsliga, finansiella och mänskliga resurser. I en tid av allt starkare politisk motvind,This thesis engages with the phenomenon of independent cultural production, which empirically shows itself as an idea(l) of self-determined cultural production and collaboration made possible through numerous different relationships. Independence, as a relational concept, achieved through in(ter)dependencies is what this thesis sets out to explore. Definitions of independence in cultural productio
At the fifth session of the United Nations (UN) Environment Assembly in March 2022, UN member states were mandated to negotiate an international, legally binding instrument on plastic pollution. This article assesses pre-session submissions from the second and third negotiation rounds to identify proposed measures and priorities for the treaty. The analysis, employing systematic qualitative conten
Phosphorus deficiency exacerbates the challenges of phytoremediation in mining areas, particularly for herbaceous species. Although Melilotus officinalis L. Pall. (Melilotus) serves as a pioneer species in mine reclamation, its response mechanisms to phosphorus deficiency stress (PDS)—particularly regarding root exudates composition, plant growth, soil properties, and key microbial functional grou
The temporality of global value chains is an important area of concern for economic geographers. This paper argues for the analytical value of closely examining the category of ‘turnover time’ as articulated in Marx’s work and subsequent historical-geographical materialism. We argue that turnover times of capitals in competition – hence struggles over time – can be conceptualised as a driving forc
Universities, operating at the intersection of state, market, and civil society, are increasingly called upon to address urgent global challenges, such as climate change, inequalities, and social injustice. This has given rise to hybrid roles for scholars, ranging from public intellectuals to policy advisers and academic entrepreneurs. Among these roles, scholar-activism stands out by explicitly a
Thirty years on, gender mainstreaming is still a dominant strategy for working with gender equality, even though its effectiveness is debated. This is also the case in Sweden. This study focuses on how organisations in public administration, particularly municipalities and regions, are introduced to and approach gender mainstreaming. It aims to contribute with in-depth knowledge of how organisatioThirty years on, gender mainstreaming is still a dominant strategy for working with gender equality, even though its effectiveness is debated. This is also the case in Sweden. This study focuses on how organizations in public administration, particularly municipalities and regions, are introduced to and approach gender mainstreaming. It aims to contribute with in-depth knowledge of how organizatio
Om stormfloder i Vadehavet.
