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We make Deterministic Lateral Displacement (DLD) flexible by combining it with AC electrokinetics.

We have fabricated a silicon-glass two-phase droplet-based microfluidic system and implemented two-dimensional acoustic focusing prior to droplet generation as well as continuously throughout the whole system to increase particle detectability. Using acoustic focusing we have effectively minimized sedimentation of the encapsulated particles and thereby increased particle detectability by as much a

Direct and precise manipulation of sub-micron particles such as bacteria, platelets, organelles, microvesicles, exosomes or virus particles is challenging. We describe for the first time how acoustic streaming in the bulk can be efficiently reduced by introducing a density or compressibility gradient and that this enables focusing of 500-nm-diameter particles in a standard acoustophoresis channel.

The highly malignant brain tumor, glioblastoma multiforme, is difficult to totally resect without aid due to its infiltrative way of growing and its morphological similarities to surrounding functioning brain under direct vision in the operating field. The need for an inexpensive and robust real-time visualizing system for resection guiding in neurosurgery has been formulated by research groups al

AbstractThe overall aim of this thesis was threefold; first, to explore resources associated with work-life balance (WLB), with a focus on the work and private lives of human service employees. Second, to develop a workplace health promotion (WHP) intervention with a WLB focus. Third, to explore the participants’ experiences of the developed WHP intervention done in the workplace. A mixed method a

Nanowires and nanotubes are very promising tools for biological applications. Their small dimensions, which are on the same length scale as many cell components, make them an ideal tool to probe and stimulate cells with minimal perturbation. Here, we present a review of our work towards using nanowires and nanotubes for biomedical applications, such as neural implant, mechanosensing, and cell tran

Background: In Sweden, societal support for older people is the responsibility of the municipalities. However, due to Sweden’s current aging-in-place policy for older people, there is a need to assess how the use of such services varies based on sociodemographic factors. The aim of this study was to describe the use of different forms of social services and institutional long-term care (ILTC) in a

Over the past few decades, digital technologies for health care have been introduced to improve effectiveness, reduce costs, and enhance access [1]. The case for digital health care increased dramatically during the COVID-19 pandemic [2,3]. However, less is known about some of the broader conditions under which these technologies would be able to contribute to improving health care [4]. To inform

Denna uppsats tar sin utgångspunkt i säkerhetsrådets paralys till följd av vetorätten i relation till Rysslands invasion av Ukraina 2022. På flera håll i den internationella debatten hörs kritiska röster angående säkerhetsrådets, och därmed i praktiken hela FN:s, passivitet till följd av säkerhetsrådet oförmåga att agera i enlighet med sin befogenhet enligt framför allt FN-stadgans kapitel sju. The background and the main question of this essay derives from the paraly-sis of the Security Council as a result of the use of the veto in relation to the Russian invasion of Ukraine in 2022. In the international discussion, critical voices have been raised against the Security Council's and thus the entire UN's inefficacy following the Security Council’s inability to act in accordance w

This thesis aimed to determine if Euroscepticism is demonstrated to shift in the EU’s external border regions after sudden border insecurities, compared to other types of regions. This field was explored due to previous researchers claiming that the EU’s border regions are particularly susceptible to changes in Euroscepticism due to sudden border insecurity. The case of Russia’s invasion of Ukrain

Handelsresandeproblemet (the Traveling Salesman Problem, TSP) är ett välkänt optimeringsproblem som kan vara utmanade att lösa även för dagens mest kraftfulla datorer. Problemet är enkelt att formulera: en handelsresande ska hitta den kortaste vägen för att besöka N städer och sedan återvända till staden hen startade i. Svårigheten härstammar från att när antalet städer ökar i problemet, ökar ocksThe traveling salesman problem (TSP) is a well-known computationally hard problem often used to benchmark new optimization algorithms. With recent advances in the field of quantum computing, quantum optimization algorithms are emerging as promising new ways to potentially solve such problems that remain difficult for classical computers. However, most modern quantum processing units (QPUs) still l

Högre verkningsgrader, stabilitet och minskad toxicitet; så skall framtidens solceller nå verkligheten. Många hoppas att solenergi ska ta över våra energibehov och varje dag närmar vi oss en grönare utvinning av elektricitet. Kommer våra bilar och byggnader täckas av solceller i framtiden? Inte helt omöjligt, om vi kan bemästra det fascinerande materialet perovskit. På EPFL, Ecóle Polytechnique FPerovskite research has quickly gone from non-existent to one of the biggest reseach areas in Photo- voltaics. There are still many questions to be solved regarding the stability, environmental impact, reproducible large area devices, efficiency and module fabrication cost of Perovskite Solar Cells, PSCs, before commercial up-scaling. Scientists all over the world are working towards solutions and

The polar ice cap in the Arctic is receding, which has led to an increase in activity in the region. As the Arctic is becoming more accessible, economic opportunities are opening, making territorial claims in the region increasingly interesting to the Arctic Coastal States. This thesis focuses on the legal regime governing a future division of the Arctic Ocean. Given certain provisions are met, th

Humlor är ett välkänt och omtyckt inslag i den svenska naturen. Globalt utgör de en viktig resurs som pollinatörer inom jordbruket. De senaste åren har forskare försökt kvantifiera deras och andra pollinatörers betydelse för jordbruket. Den generella kunskapen om humlor, deras mångfald, utbredning och beteende, har också ökat. Humlor är taxonomisk sett bin och 41 arter har hittills hittats i Sveri

Finding the way back to childhood is a dissertation, written to clarify whether or not there exist any rehabilitation plan for the child soldiers being released in southern Sudan. Children are today, worldwide being released and let back into their communities, after years of abuse and violations against their rights. According to The Convention on the Rights of the Child, a child is protected fro

Titel: ” Jag märker att människor som kanske inte skulle ha pratat med mig annars gör det nu.” En kvalitativ undersökning om bloggars betydelse för individen efter dess ankomst i människors vardag Institution: Enheten för medie- och kommunikationsvetenskap, Lunds universitet Kurs: MKVA21:4, B-uppsats Författare: Marie-Louise Nilsson och Sandra Nilsson. Handledare: Veselinka Möllerström Problemomr

Sammanfattning Politik och media är beroende av varandra och vi finner det därför intressant att studera hur internet och sociala medier spelar en allt större roll i den politiska kommunikationen. Vi har valt att närmare granska hur de svenska riksdagspartiernas politiker handskas med dessa nya kommunikationskanaler, något som är särskilt intressant med tanke på att det är valår. Vår ansats är kva

Information and communication technologies have acquired contemporary prominence and are being introduced as new and technologically innovative devices for rapid African development, becoming key cornerstones of the development assistance interventions of the European Union and the G8. But the Dot Force Initiative of the G8 and the various ICT for development programmes of the EU display a moderni

The age-specific incidence of traumatic brain injury in older adults is rising in high-income countries, mainly due to an increase in the incidence of falls. The severity of traumatic brain injury in older adults can be underestimated because of a delay in the development of mass effect and symptoms of intracranial haemorrhage. Management and rehabilitation in older adults must consider comorbidit