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A key limitation of current hearing devices is the lack of user feedback to determine what speech content is actually being registered by the brain. To provide an objective measure of this cognitive processing for future brain-steered hearing devices, this study develops a brain-to-language model capable of decoding semantic-like information directly from non-invasive electroencephalography (EEG)
NYTT FRÅN LUNDS UNIVERSITET Mejlutskick på svenska och engelska som vänder sig till fakultetskommunikatörer vid Lunds universitet för vidarespridning i fakultets- och institutionskanaler – Nr 36 v 46 - 2020. UNIVERSITETSGEMENSAMT Hållbarhetsplan antagen En ny hållbarhetsplan har nu (12 november) antagits av universitetsledningen. Med denna vill man öka ambitionsnivån och utveckla hållbarhetsarbete
https://www.cec.lu.se/sites/cec.lu.se/files/2020-11/LU-gemensamt%20Mejlutskick%20Nr%2036-2020-v46.pdf - 2026-07-09
Animals use vision over a wide range of light intensities, from dim starlight to bright sunshine. For animals active in very dim light the visual system is challenged by several sources of visual noise. Adaptations in the eyes, as well as in the neural circuitry, have evolved to suppress the noise and enhance the visual signal, thereby improving vision in dim light. Among neural adaptations, spati
This thesis aims to examine the development of health trends in Sweden, since it is argued that they will prevail and even become more extreme in the near future. Supermarkets will have to understand the impact of those health trends on consumer behaviour and therefore are required to comprehend the sociological, cultural and psychological factors behind these. It is proclaimed that the current he
Three different classification solutions for distinguishing events from non-events in surveillance audio are described and evaluated. The three compared methods are energy functions, Gaussian mixture modelling algorithms (GMM) and existing voice activity detectors (VAD). Recorded test signals with corresponding manually labelled ground truth files are used to determine the accuracies of the method
Kvarts är ett av de vanligaste mineralen i jordskorpan, både i sediment och i bergarter. Halten kvarts i sediment är intressant vid bedömning av bl.a. mognadsgraden. Ett sediments mognadsgrad kan användas vid tolkning av dess historia, vilket är till nytta vid t.ex. rekonstruktion av paleomiljöer. Geologiska institutionen vid Lunds universitet, har efterfrågat metoder för bedömning av kvartshaltenQuartz is one of the most common minerals on Earth and is found in both lose sediment, sedimentary rock and bedrock. The maturity grade of sediments can be determined by the amount of quartz it contains. This is used when interpreting the sediments’ geological history and reconstructing paleoenvironments. The purpose of this thesis is to analyze and develop methods for determining the quartz conte
In this master's thesis the ability to estimate the respiratory frequency from heart rate variability measurement is analyzed. The goal was to implement a solution that is easily transferable to real time. Starting from the initial processing of data, continuing with two different spectrogram implementations, a single spectrogram and a multitaper spectrogram, combined with three different meth
Considered the number one city for students in Sweden, Lund offers an exciting campus environment with a vibrant student life, an international atmosphere and memorable student traditions. A unique and vibrant student lifeThe main Lund University campus is set in the charming cobble-stoned city of Lund, which dates back to 990. Today, students make up almost half of the population in the city.Ask
https://www.lunduniversity.lu.se/student-life/lund-student-city - 2026-07-07
Bcl-6 i T celler – ökar men initierar ej uttryck av CXCR5 En av de viktigaste funktionerna av kroppens immunförsvar är dess förmåga att producera antikroppar som skyddar mot infektioner. När immunförsvaret utsätts för en ny bakterie eller ett nytt virus kommer B celler att producera stora mängder antikroppar för att förhindra en storskalig infektion. Dessa antikroppar är dock inte särskilt effekAbstract: T follicular helper (Tfh) cells are a subset of CD4 T cells specialized to help B cells during the germinal center reaction. By expressing high levels of the chemokine receptor CXCR5, Tfh cells home into the B cell follicle where they provide B cells with cytokines IL-4 and IL-21 as well as receptor-ligands interactions essential for B cell differentiation into mature antibody secreting
This study explores methods for mitigating procyclicality due to calculations of minimum capital requirements to cover credit risk. The basis for calculations are provided by the Basel Committee in the Basel accords and the main concern is that they could strengthen the amplitude of economic cycle fluctuations. Our study constructs a portfolio that aims to replicate the Swedish market for corporat
The 17 UN Sustainable Development Goals (SDGs) provide a framework for “peace and prosperity for people and the planet, now and into the future” (UN, 2015). Fast-moving societal questions as the ones related to the SDGs are often addressed from within traditional disciplinary research paradigms, which might not be best equipped for tackling the emerging challenges. At Lund University, an interdisc
Phosphorus magnetic resonance spectroscopy (31P NMR) is a non-invasive technique for determining concentrations of intracellular metabolites linked to energy metabolism of human tissues. Inorganic phosphate (Pi) and adenosine triphosphate (ATP) are found in most tis-sues, while tissue specific metabolites such as creatine phosphate (PCr) and metabolites linked to lipid metabolism can be observed i
Background MRI at low field strength has re-emerged as a hot research topic in the last few years largely due to advantages including: reduced costs, lower power and infrastructure requirements, and potential for making the scanner portable. Our group in Lund is part of a multi-national research consortium called UNITY (Ultra-low field NeuroImaging in The Young), financed by the Bill and Melinda G
https://www.msf.lu.se/research/mr-physics-group/research-environments/low-field-mri - 2026-07-07
In this study, I investigate the impact of Non Formal Education (NFE) programs on working children’s lives in Bangladesh considering the principle of the “best interests of the child” and assuming the importance of “educational opportunities” in challenging child labour and allowing children to make informed rational choices. Since the principle of the “best interests of the child”, as defined by
This paper investigates the accuracy of three different methods that are used to perform a relative valuation. I also study the valuation accuracy of the three most widely used multiples used within these methods, the enterprise value to EBITDA (EV/EBITDA), the forward-looking price per share to earnings per share (P/EPS1), and the price-book (P/B). In addition, the difference between industries r
In this rapid era of technology, speed of communication has become an important factor. To overcome this challenge, 5G/NR technology is being explored. One of the ways of doing this is by using the so called millimeter wave spectrum. In order to make usage of the mmWave spectrum, due to the high path loss it introduces, the beamforming technique is adopted. Beamforming is a method used in high fre
Eye tracking studies suggest that refixations-fixations to locations previously visited-serve to recover information lost or missed during earlier exploration of a visual scene. These studies have largely ignored the role of precursor fixations-previous fixations on locations the eyes return to later. We consider the possibility that preparations to return later are already made during precursor f
This thesis develops a general formalism for continuous feedback control in quantum systems. The main result is a quantum Fokker-Planck master equation describing the joint dynamics of a quantum system and a detector with finite bandwidth. For a fast detector, this equation can be reduced to a Markovian master equation for the system dynamics. In particular, the formalism is amenable to analyticalThis thesis devolops a general formalism for continuous feedback control in quantum systems. The main result is a quantum Fokker-Planck master equation describing the joint dynamics of a quantum system and a detector with finite bandwidth. For a fast detector, this equation can be reduced to a Markovian master equation for the system dynamics. In particular, the formalism is amenable to analytical
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https://www.qps.education.lu.se/instruktioner-till-dig-som-ar-frageskrivare - 2026-07-07
Previous studies have shown that measurements of beluga whale (Delphinapterus leucas) and bottlenose dolphin (Tur-siops truncatus) echolocation signals at off-axis angles may be well modeled using a Gaussian bell function or a chirped Gaussian function as envelope. In this paper, we apply a novel technique, the matched window reassignment, for investigation of a range of models of dolphin echoloca
