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Alla nyheter – Sida 9 – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök ”Jag kämpar med livet varje dag” 2025-05-21 Ett fästingbett ledde till att den före detta sportdykaren Johan Jönsson inte ens kunde ta sig upp ur sitt eget badkar. Efter år av kamp med följderna av tb

https://www.vetenskaphalsa.se/alla-nyheter/page/9/ - 2026-07-10

In this paper we develop a number of generic techniques and algorithms in spectral analysis of large linear approximations for use in cryptanalysis. We apply the developed tools for cryptanalysis of ZUC-256 and give a distinguishing attack with complexity around 2236 . Although the attack is only 220 times faster than exhaustive key search, the result indicates that ZUC-256 does not provide a sour

A novel method using the cloud to implement a variable horizon model predictive controller is presented. In case of sudden long delays and downtime, a graceful degradation is used. Robust, best effort strategies allow industrial grade use of the powerful, efficient, and quickly improving cloud ecosystems. The variable horizon strategy finds use in, for example, non-linear control problems, and the

Populärvetenskaplig sammanfattning: Av jordens yta är ca 30 % täckt av skog och mer än 80 % av allt kol inbundet ovan mark återfinns i skogens växtlighet. Skogen är kopplad till atmosfären genomflöden av bland annat energi, vatten och koldioxid. Hur skogen brukas kan därför påverka klimatförändringen. När skog avverkas tas det mesta av det inbundna kolet ovan mark bort. Kvar är resterna från avverForests have a large role in the global carbon cycle. Forest management could play a crucial role in mitigating climate change. With a growing demand for renewable energy the forest could contribute. Stumps are one of the potential energy sources from the forest. In this study a pine dominated clear-cut area was surveyed in regard of stump biomass, carbon fluxes and carbon (C) and nitrogen (N) sto

Multi and many core platforms are increasingly employed today to cope with the demands of modern multimedia, networking and other similar streaming applications. Selecting the best architecture for a set of such applications is complex, and without coding for each specific system, the choice is made based on designer experience. In this paper we use CAL, a dataflow language for specifying streamin

It is likely that the increased popularity of wireless local area networks (WLANs) together with the continuous technological advances in wireless communication, also increase the interest for ad hoc networks. An ad hoc network is a wireless, autonomous, infrastructure-less network composed of stations that communicate with each other directly in a peer-to-peer fashion. When discussing mobile ad h

In this paper, we first present a survey of existing color buffer compression algorithms. After that, we introduce a new scheme based on an exactly reversible color transform, simple prediction, and Golomb-Rice encoding. In addition to this, we introduce an error control mechanism, which can be used for approximate (lossy) color buffer compression. In this way, the introduced error is kept under s

Classifying images of HEp-2 cells from indirect immunofluorescence has important clinical applications. We have developed an automatic method based on random forests that classifies an HEp-2 cell image into one of six classes. The method is applied to the data set of the ICPR 2012 contest. The previously obtained best accuracy is 79.3% for this data set, whereas we obtain an accuracy of 97.4%. The

In experimental design and 3D reconstruction it is desirable to minimize the number of observations required to reach a prescribed estimation accuracy. Many approaches in the literature attempt to find the next best view from which to measure, and iterate this procedure. This paper discusses a continuous optimization method for finding a whole set of future imaging locations which minimize the rec

Internationella forskareNär en institution planerar att ta emot en gästforskare dyker många frågor upp. Var ska gästen bo? Vad gäller agående visum? Skolor för barn, språkträning och anställningsfrågor är andra exempel. Nedan hittar du användbara tips och checklistor som underlättar för både institutionen och personen ifråga.Att tänka på, information på engelska, registrera och försäkra gäster:Int

https://www.intramed.lu.se/undervisa-och-handleda/internationella-mojligheter/ta-emot-forskare-larare-doktorander-och-studenter - 2026-07-09

I Sverige spelar förhandlingar mellan arbetsgivare och fackliga organisationer en avgörande roll för löner och andra anställningsvillkor. Anders Kjellberg visar i sitt kapitel att den svenska arbetsmarknadsmodellen kännetecknas av partsreglering (kollektivavtal) snarare än statsreglering (lagstiftning). Trepartsöverenskommelser förekommer också. Huvudavtalet 2022 mellan arbetsmarknadens parter ing

Introduction: Successful aging is a multidimensional construct covering behavioral, social, and psychological domains of well-being. We aimed to identify well-being profiles and their association with mobility-limitation free survival. Methods: A total of 1488 healthy individuals aged 60+ from the Swedish National study on Aging and Care in Kungsholmen (SNAC-K) were followed-up for 15 years. Mobil

The use of fetal bovine serum hinders obtaining reproducible experimental results and should also be removed in hormone and growth factor studies. In particular hormones found in FBS act globally on cancer cell physiology and influence transcriptome and metabolome. The aim of our study was to develop a renal carcinoma serum free culture model optimized for (embryonal) renal cells in order to selec

Popular Abstract in Swedish Kroppens fettceller innehåller en energidepå i form av s.k. triglycerider, en glycerolmolekyl med tre påkopplade fettsyror, som kan användas vid behov (fasta, arbete och dylikt). För att kroppens andra celler ska kunna använda fettdepåerna som energikälla, måste fettsyrorna frikopplas från glycerolmolekylen och skickas ut ur fettcellerna till blodet. Fettsyrorna transpoThe primary role of hormone-sensitive lipase (HSL), an 84 kDa enzyme of 768 amino acids (in the rat protein), is to hydrolyse stored triacylglycerols in adipocytes of white adipose tissue. Catecholamines and insulin regulate lipolysis through cellular signalling. A major target of this regulation is HSL, activated through phosphorylation by cAMP-dependent protein kinase (cAMP-PK). Insulin activate

Popular Abstract in Swedish Två av de viktigaste polyaminerna påträffades redan i slutet av 1600-talet, som kristaller i tjursperma och har därför fått namnen spermin och spermidin. Dessa aminer bildas från en annan substans, putrescin, som först isolerades från ruttnande kött. Namnet putrescin kommer från engelskans putrefaction, som betyder förruttnelse. Polyaminer, som kemiskt sett är positivt The polyamines putrescine, spermidine and spermine are essential for cell growth and differentiation. The biosynthesis of polyamines are tightly regulated by feedback mechanisms involving two enzymes, namely ornithine decarboxylase (ODC) and S-adenosylmethionine decarboxylase (AdoMetDC). This thesis deals with the mechanisms behind the polyamine-mediated feedback control of these enzymes. The poly

The LUSEM Communications Office, with tools such as guidelines and templates, aims to communicate and assist in communicating the LUSEM brand in a clear and coherent way. Efficient communication is a common concern; we all want to reach out in an effective way. The Communications Office can support you in your everyday communication. In collaboration with you, we create relevant content on the web

https://www.lusem.lu.se/internal/workplace/support-and-resources/communication-templates-and-tools - 2026-07-09