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Nitrogenase is the only enzyme that can convert N2 into NH3. The reaction requires the addition of eight electrons and protons to the enzyme and the mechanism is normally described by nine states, E0–E8, differing in the number of added electrons. Experimentally, it is known that three or four electrons need to be added before the enzyme can bind N2. We have used combined quantum mechanical and mo
Wild waterfowl are important reservoir hosts for influenza A virus (IAV) and a potential source of spillover infections in other hosts, including poultry and swine. The emergence of highly pathogenic avian influenza (HPAI) viruses, such as H5N1 and H5N8, and subsequent spread along migratory flyways prompted the initiation of several programs in Europe, North America, and Africa to monitor circula
Background: To determine the feasibility and efficacy of a retinal telephotocoagulation treatment plan for diabetic macular edema. Methods: Prospective, interventional cohort study at two clinical sites. Sixteen eyes of ten subjects with diabetic macular edema underwent navigated focal laser photocoagulation using a novel teleretinal treatment plan. Clinic 1 (King Khaled Eye Specialist Hospital, R
Objective: To identify reliable predictors of outcome in comatose patients after cardiac arrest using a single routine EEG and standardized interpretation according to the terminology proposed by the American Clinical Neurophysiology Society. Methods: In this cohort study, 4 EEG specialists, blinded to outcome, evaluated prospectively recorded EEGs in the Target Temperature Management trial (TTM t
In the present study, one type of uniformly nanostructured surface (NPDS) was modified by electrophoretic deposition. Two kinds of micro/nanostructured surfaces (FLS1 and FLS2) were fabricated on copper surfaces by femtosecond laser processing. The micro/nanostructured surfaces were further modified by electrophoretic deposition. Afterwards, composite micro/nanostructured surfaces (CS1 and CS2) we
Vector navigation, i.e., maintaining a constant heading for a given amount of time, is hypothesized to provide a viable basis for the navigational feats of a number of long-distance animal migrants. Since animals following this strategy are subject to drift by wind or by ocean current, performing long migrations relying on vector navigation is particularly challenging. We tested whether vector nav
Timing of return to the breeding area presumably optimizes breeding output in migrants. How timing affects the other components of fitness — survival, has been comparatively little studied. Returning too early in spring is expected to be associated with high mortality in insectivorous migrants when weather conditions are still unsuitable. Yet, males in particular arrive early to get access to the
Membrane-bound water channels known as aquaporins (AQPs) facilitate water transport across biological membranes along osmotic gradients. Since all living cells depend on their ability to maintain water homeostasis, this must be tightly regulated. In eukaryotes, this is achieved by gating, which involves a conformational change of the protein, thereby physically blocking water transport, or by traf
Resolving the spatial and temporal dynamics of gross primary productivity (GPP) of terrestrial ecosystems across different scales remains a challenge. Remote sensing is regarded as the solution to upscale point observations conducted at the ecosystem level, using the eddy covariance (EC) technique, to the landscape and global levels. In addition to traditional vegetation indices, the photochemical
A method for simultaneous extraction and quantification Of four non-steroidal anti-inflammatory drugs (NSAIDs) based on continuous flow hollow fiber liquid-phase microextraction (CFHF-LPME) was developed. The effect of sample flow rate, acceptor flow rate, type of acceptor flow (continuous, semi-continuous or forward-backward), type of supported liquid membrane and sample volume was studied. The e
The construction sector has been criticised in recent years for being inefficient. The critique involved describes finished buildings as having flaws and there being a lack of interest within the construction sector in assembling knowledge and sharing experience. The construction industry has started working with questions of how efficiency can be increased by reducing the errors made. Knowledge
The digital platform Airbnb has gained popularity in a number of countries particu- larly in the Maltese islands. Striking a balance in setting a price that is competitive and also renders a good profit can be a challenge. In this thesis a model is de- veloped to predict the price of a listing in the Maltese islands for September 2022 through a machine learning approach whereby five types of model
Samarbete mellan forskning och sjukvård gynnar hudcancerpatienter – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Samarbete mellan forskning och sjukvård gynnar hudcancerpatienter 2015-05-18 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit.
https://www.vetenskaphalsa.se/samarbete-mellan-forskning-och-sjukvard-gynnar-hudcancerpatienter/ - 2026-06-18
Lagen hinner inte alltid med – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Lagen hinner inte alltid med 2021-11-05 iStock/HYWARDS Precis som annan teknologi måste AI följa de lagar och riktlinjer som finns. Men vad händer när en teknologisk utveckling skapar situation
https://www.vetenskaphalsa.se/lagen-hinner-inte-alltid-med/ - 2026-06-18
Samband mellan mycket hög PFAS-exponering och astma hos barn – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Samband mellan mycket hög PFAS-exponering och astma hos barn 2026-04-22 Forskare vid Lunds universitet har undersökt samband mellan exponering för PFAS och utvec
https://www.vetenskaphalsa.se/samband-mellan-mycket-hog-pfas-exponering-och-astma-hos-barn/ - 2026-06-18
Vill driva barnonkologin framåt – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Vill driva barnonkologin framåt 2020-02-17 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit. Utanför de olika intagningsrummen på barnonkologen avdelning 64, hä
https://www.vetenskaphalsa.se/vill-driva-barnonkologin-framat/ - 2026-06-19
Systemisk skleros – en knepig sjukdom – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Systemisk skleros – en knepig sjukdom 2011-11-01 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit. Systemisk skleros är svårast av de reumatiska sjukdomar
https://www.vetenskaphalsa.se/systemisk-skleros-%E2%80%93-en-knepig-sjukdom/ - 2026-06-19
The Knut and Alice Wallenberg Foundation supports long-term, free basic research beneficial to Sweden, mainly in medicine, technology, and the natural sciences. This is achieved through long-term grants to excellent researchers and to projects. The foundation also initiates grants to strategic projects and scholarship programs. WCMMThe Wallenberg Centers for Molecular Medicine represents an initia
https://www.wcmm.lu.se/wallenberg-center-molecular-medicine-lund/joint-nation-effort - 2026-06-19
På biologifaktasidorna förekommer bilder från följande upphovspersoner. Ett stort tack till dem.Encyclopedia of LifeJ.C. SchouNobu TamuraAlex DunkelArthur ChapmanZbyszek BoratynskiDick CulbertTassilo RauMalcolm StoreN. SlothJennifer A. ClackDavid BlankMalcolm StoreyCarlos Henrique Luz Nunes de AlmeidaJerzy StrzeleckiGerald och Buff CorsiThe Darwin Initiative Centre for Bat ResearchA. NeumannLaia L
https://www.biologi.lu.se/bilder-och-videoer-pa-webbplatsen - 2026-06-19
As soon as you start planning your event, you must decide on the participation fee and how you will receive payments. Here you can read about the VAT rules and the various possible payment methods. VAT on participation feesAlready at the application stage you must indicate what the participation fee is, including VAT. This will depend on whether the conference is held on site in Sweden or digitall
