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The separation of multiple transmit waveforms with time and frequency synchronization constitutes a considerable challenge for multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) systems. It is well-known that aliased signal returns may be separable by digital beamforming (DBF) on receive in elevation. However, the current orthogonal-waveform beamforming schemes significantly incr
Background: Chronic obstructive pulmonary disease (COPD) is a severe condition affecting millions worldwide, leading to numerous annual deaths. The absence of significant symptoms in its early stages promotes high underdiagnosis rates for the affected people. Besides pulmonary function failure, another harmful problem of COPD is the systemic effects, e.g., heart failure or voice distortion. Howeve
The ultimate dream of unification models consists in combining both gauge and Yukawa couplings into one unified coupling. This is achieved by using a supersymmetric exceptional E6 gauge symmetry together with asymptotic unification in compact five-dimensional space-time. The ultraviolet fixed point requires exactly three fermion generations: one in the bulk, and the two light ones localised on the
The cellular polyamines spermine, spermidine, and their metabolic precursor putrescine, have long been associated with cell-growth, tumor-related gene regulations, and Alzheimer's disease. Here, we show by in vitro spectroscopy and AFM imaging, that these molecules promote aggregation of amyloid-beta (Aβ) peptides into fibrils and modulate the aggregation pathways. NMR measurements showed that the
A method, system and apparatus are disclosed. A network node in communication with a wireless device in a first cell is provided. The network node is configured to receive, from the wireless device, a measurement report associated with the first cell. The network node is further configured to estimate at least one radio resource management, RRM, metric for the first cell and at least one second ce
A method, system and apparatus are disclosed. At least one embodiment includes a wireless device, WD, configured to communicate with a network node, the WD is configured to, and/or includes a radio interface and/or processing circuitry configured to receive a radio resource management, RRM, report configuration. The wireless device is further configured to estimate at least one RRM metric for each
Road traffic accidents cause nearly 1.3 million deaths and around 50 million injuries each year globally. Most organisations generate travel and transport, and influence thereby traffic safety. In Sweden, 47 percent of fatal accidents in road traffic are work-related, and 36 percent are linked to a procured transport service. Effective approaches to managing traffic safety in organisations have no
One of the most challenging aspects of stem cell research is the reliance on retrospective assays for ascribing function. This is especially problematic for hematopoietic stem cell (HSC) research in which the current functional assay that formally establishes its HSC identity involves long-term serial transplantation assays that necessitate the destruction of the initial cell state many months bef
We investigate the link between the internal microstructure of poly(N-isopropylacrylamide)-poly(ethylene glycol) methyl ether methacrylate (PNIPAM-PEGMA) microgels, their bulk moduli and the rheological response and structural arrangement in dense suspensions. The low degree of crosslinking combined with the increased hydrophilicity induced by the presence of PEGMA results in a diffuse, star-like
Time delay estimation or Time-Difference-Of-Arrival estimates is a critical component for multiple localization applications such as multilateration, direction of arrival, and self-calibration. The task is to estimate the time difference between a signal arriving at two different sensors. For the audio sensor modality, most current systems are based on classical methods such as the Generalized Cro
A modern vehicle typically has up to ten different heat exchangers, ensuring prolonged technology life, improved performance, and passenger comfort. Heat exchangers for automotive applications are made of multilayer-clad brazed aluminium. They are mature products, having been used in passenger and commercial internal combustion engine vehicles for decades, and their use will continue in electrifie
This work investigates the interaction between cultural norms and neighborhood characteristics, in the context of the gender gap in math. Using high-quality Swedish administrative data, I estimate the effect of mothers’ country-of-origin gender norms on the gender gap in math among second-generation immigrant siblings and exploit a refugee placement policy to obtain random variation in regional ch
This paper introduces a novel method for solving the single-source localization problem, specifically addressing the case of trilateration. We formulate the problem as a weighted least-squares problem in the squared distances and demonstrate how suitable weights are chosen to accommodate different noise distributions. By transforming this formulation into an eigenvalue problem, we leverage existin
In his contribution to the infuential “Architecture and the Computer”conference in 1964, Christopher Alexander summarised the reorganisation of intellectual labour that, beginning in the 19th century,became fnally concretised in the technologies of the computer. Inhis opinion, computers should be regarded as nothing else than hugearmies of clerks, stupid and without initiative, but able to follow
Socio-economic inequalities are remarkable in contemporary developed countries and continue to grow. The sources of these phenomena are not understood, and there is no agreement as to when in an individual’s life they originate, from early childhood to adulthood. The literature showing that health in infancy may be an important factor in later-life health and income trajectories is expanding, but
In this paper, we have investigated, by means of quantitative and statistical methods, stability and change in cultural vocabulary of Indo-European in Europe, with a focus on agriculture. For this purpose we have created a culture vocabulary list with lexical head words, organized into subcategories based on their role and function in a cultural system, the purpose of which is to give a representa
The Mesozoic biotas of Scandinavia have been studied for nearly two centuries. However, the last 15 years have witnessed an explosive advance in research, most notably on the richly fossiliferous Triassic (Olenekian-Carnian) and Jurassic (Tithonian) Lagerstätten of the Norwegian Arctic Svalbard archipelago, Late Cretaceous (Campanian) Kristianstad Basin and Vomb Trough of Skåne in southern Sweden,
