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This thesis covers the development of a silicon neural interface, with focus on silicon sieve electrode fabrication, design, nerve regeneration, signal recording and biocompatibility. A study of how the via hole size and transparency of the perforated sieve membrane influences the nerve regeneration is presented together with a study on soft tissue responses to planar and porous silicon. A method
Popular Abstract in Swedish Syftet med avhandlingsarbetet har varit att ge ökad kunskap om (1) psykosocial ohälsa i befolkningen, (2) prevalens och orsaker till psykosocial ohälsa bland patienter i primärvården, och (3) bland långtidssjukskrivna. Datainsamlingen inkluderar resultatet av en befolkningsenkät riktad till ett slumpmässigt urval av 13 000 personer (20-84 år), ett frågeformulär till samThe aim of the thesis is to contribute to knowledge of (1) psychosocial illness in the population, (2) the prevalence and nature of psychosocial illness encountered in primary health care, and (3) encountered among persons with long-term illness. The data collected include the results of a questionnaire given to a population-based sample of 13 000 persons (20-84 years), a questionnaire given to ge
Popular Abstract in English Modern society is still largely based on fossil resources. However, there are growing concerns about the security and cost of these resources, as well as climate change resulting from the combustion of fossil fuels. Biofuels represent renewable fuels with the potential to mitigate the adverse effects of fossil fuels, providing a more sustainable alternative. The transpBioethanol from sugarcane is a sustainable alternative to fossil fuels, and the increasing demand for fuel ethanol has prompted studies on the use of the lignocellulosic residues of sugarcane, namely bagasse and leaves, as new feedstock. This thesis describes various process designs and the economic feasibility of producing second generation (2G) ethanol from bagasse and leaves via the enzymatic r
Contemporary advancements in miniaturization of analytical systems have advantageously fostered development, automation, and hyphenation of a variety of sample preparation techniques. Among several downscaled extraction designs, porous synthetic polymeric membranes (such as flat sheet (FS) or hollow fiber (HF)) have been utilized for membrane-based extraction, separating two aqueous phases (as in
Alliances are volatile key components of many corporations' competitive strategies. They offer fast and flexible means of achieving market access, scale economies, and competence development. However, strategic alliances can encounter difficulties that often lead to disappointing performance. The authors suggest that the way partners manage the collective learning process plays a central role in t
Combustion of fuel in diesel engines emits substances harmful to the environment such as soot. These emissions can be reduced by either in-cylinder treatments or after-treatments. One of the common in-cylinder treatments is multiple-injection, which divides a single fuel injection to multiple smaller injections. There are many open questions on the physical processes of the ignition, combustion an
PURPOSE: To report the lifetime risk of visual impairment resulting from glaucoma in patients originally followed up in a 10-year prospective randomized study initiated in 1981 to assess patients with elevated intraocular pressure (IOP).DESIGN: Retrospective patient chart review.PARTICIPANTS: Data on deceased patients who initially were followed up prospectively in the randomized controlled study
BACKGROUND: Prospective and detailed investigations of smoking and prostate cancer (PCa) risk and death are lacking.OBJECTIVE: To investigate prediagnosis smoking habit (status, intensity, duration, and cessation) as a risk factor, on its own and combined with body mass index (BMI), for PCa incidence and death.DESIGN, SETTING, AND PARTICIPANTS: We included 351448 men with smoking information from
This doctoral dissertation presents the development and digital hardware realization of cardiac event detectors. Implantable medical appliances, as the cardiac pacemaker, have progressed from a life sustaining device to a device that considerably improves life quality for all ages. The number of electronic devices and household appliances in everyday live has an ongoing exponential growth. The
The widespread decline of insect pollinators poses a conservation concern and threatens both the pollination of wild plants and crops. Primary drivers of pollinator decline are habitat loss, degradation and fragmentation, which to a large extent result from agricultural intensification. Numerous tools have been developed to aid decision-making relating to insect pollinators and pollination in agri
As the proverbial noose tightens around humanity’s resource spending, research is focused on utilizing materials to their fullest potential. Nanotechnology is the ultimate way to economize by splitting objects into smaller parts and dispersing the material properties over greater surface to volume ratios. Emerging quantum effects at the nanoscale present unique tweaking opportunities in applicatio
BACKGROUND: Tuberculosis remains a leading infectious cause of death in resource-limited settings. Effective treatment is the cornerstone of tuberculosis control, reducing mortality, recurrence and transmission. Supporting treatment adherence through facility-based observations of medication taking can be costly to providers and patients. Digital adherence technologies (DATs) may facilitate treatm
The overall aim of this thesis is to examine how walking as a transport mode is constructed in the planning realm, affected by the built environment and perceived by the individual. This aim is related to the following research questions: (1) How are pedestrians and walking understood, constructed and perceived in the planning context? (2) How does individual traits and the built environment affec
High-order harmonic generation (HHG) is a highly nonlinear optical process in which extreme ultraviolet (XUV) radiation is generated due to the interaction of an intense laser field with atoms. This process enables the production of high harmonics, which would not be achieved with standard nonlinear media. The utilization of two-color laser fields (formed by combining a fundamental field with one
The background for this thesis is that access to sustainable electricity is part of the United Nations’ Sustainable Development Goals for 2030. In Sub- Saharan Africa, approximately 570 million people lacked access to electricity in 2022. To expand access in rural areas, solar home systems and other off-grid solar products offer affordable and accessible solutions. However, as these systems reach
Efforts to reduce energy consumption in buildings have increased with the pending impact of climate change. Heat losses through airing behaviours remain a largely unknown factor due to the variety of reasons for opening a window, making generalization difficult. Currently, an estimation of 4 kWh/m2 heated area for airing heat loss is assumed in Sweden. Additionally, the resulting airflow from open
Lund University WINGS network at Lund University, Sweden WINGS, Lund University Lund University • Was started in 2003 by female PhD students at the Department of Geology at Lund University Women IN Geological Sciences • Grass roots movement • Expanded during 2007 • All departments of the Faculty of Science • Obtained annual
https://www.wings.lu.se/sites/www.wings.lu.se/files/stepup2014_johanna.pdf - 2026-06-12
För att utöka biogasproduktionen i Västra Götalandsregionen (VGR) kan restströmmar från jordbrukssektorn fungera som en storskalig leverantör av biomassa. Produktionen av biogas minskar beroendet av fossila bränslen och rötresten som bildas kan också återföras till jordbrukssektorn, vilket skapar ett slutet kretslopp. I detta examensarbete granskades utökningen genom en kartläggning av biogasproduTo expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. The expansion was assessed in this thesis by the investigation of
Artificial intelligence (AI) and machine learning (ML) are rapidly permeating nearly every aspect of modern life, frompersonal devices and autonomous systems to industrial automation and environmental monitoring. The growing demandfor intelligence at the network edge is reshaping how computing hardware is conceived and built. Edge AI platforms areexpected to deliver high throughput within tight en
