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A practical optical link system was prepared with a transmitter (Tx) and receiver (Rx) for reducing EMI (electromagnetic interference). The optical TRx module consisted of a metal optical bench, a module printed circuit board (PCB), a driver/receiver IC, a VCSEL/PD array, and an optical link block composed of plastic optical fiber (POF). For the optical interconnection between the light-sources an
We have estimated the activation energy for hydrogen abstraction by compound I in cytochrome P450 for a diverse set of 24 small organic substrates using state-of-the-art density functional theory (B3LYP). We then show that these results can be reproduced by computationally less demanding methods, for example, by using small organic mimics of compound I with both B3LYP and the semiempirical AM1 met
In order to maximize protein identification by peptide mass fingerprinting noise peaks must be removed from spectra and recalibration is often required. The preprocessing of the spectra before database searching is essential but is time-consuming. Nevertheless, the optimal database search parameters often vary over a batch of samples. For high-throughput protein identification, these factors shoul
About one in ten persons is born with, or develops, a physical, sensory or mental impairment. When this stops a person from participating in normal life, it becomes a handicap. The aim of this Building Issue is to help create physical environments, particularly in public buildings, that support people with physical and sensory impairments, so that they do not become handicapped. This report identi
Over the last decades, dramatic improvements in combinatorialoptimisation algorithms have significantly impacted artificialintelligence, operations research, and other areas. These advances,however, are achieved through highly sophisticated algorithms that aredifficult to verify and prone to implementation errors that can causeincorrect results. A promising approach to detect wrong results is tous
The objective of this thesis is to investigate the synthesis of well-defined polymer nanohybrid materials bearing desirable functionality via surface-initiated atom transfer radical polymerization (SI-ATRP) for potential bioapplications.SI-ATRP is an excellent controlled radical polymerization (CRP) method for the synthesis of polymer nanohybrid by growing polymer brushes (chains) from an interfac
To develop effective therapeutic strategies for protein misfolding diseases, a promising route is to identify compounds that inhibit the formation of protein oligomers. To achieve this goal, we report a structure.activity relationship (SAR) approach based on chemical kinetics to estimate quantitatively how small molecules modify the reactive flux toward oligomers. We use this estimate to derive ch
The T matrix for scattering of waves by a circular disk is derived. Both the scalar (Dirichlet and Neumann boundary conditions) and the vector (perfectly conducting disk) cases are considered and the use of alternative choices for surface field functions is discussed in detail, and it is found that either type of the surface field representation is equally good for the disk case. Analytic expressi
Hudbit för hudbit närmare Alzheimers gåta – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Hudbit för hudbit närmare Alzheimers gåta 2015-03-16 ⚠️ Den här artikeln är mer än 5 år gammal. Nya forskningsrön kan ha tillkommit. På bilden ovan ses hudvävnad som lagts i odling
https://www.vetenskaphalsa.se/bit-for-bit-narmare-alzheimers-gata/ - 2026-07-21
Greenhouse cultivation has been expanding rapidly in recent years, yet little knowledge exists on its global extent and expansion. Using commercial and freely available satellite data combined with artificial intelligence techniques, we present a global assessment of greenhouse cultivation coverage and map 1.3 million hectares of greenhouse infrastructures in 2019, a much larger extent than previo
Background: Immigrant women in Sweden face unique challenges in accessing sexual and reproductivehealth and rights (SRHR ) services, particularly in contraceptive counselling. Despite a well-establishedsystem led by midwives, barriers related to cultural sensitivity, health literacy, and the healthcaresystem's adaptability to diverse needs persist. Understanding immigrant women's perspectives on S
Saccharomyces cerevisiae ferments hexoses in lignocellulosic hydrolysates under anaerobic conditions with high rates and ethanol yields. However, S. cerevisiae is naturally unable to utilize the pentose fraction of the hydrolysates. Xylose is the most abundant pentose sugar, and although recombinant S. cerevisiae strains capable of ethanolic xylose fermentation have been obtained through metabolic
Efficient design of urban drainage systems is based on statistical analysis of past rainfall events at fine time scales. However, fine time scale rainfall data are usually lacking in many parts of the world. A possible way forward is to develop methods to derive fine time scale rain intensities from daily observations. This paper applied cascade-based disaggregation modeling for generation of fine
Homogenates of human blood platelets, but not of red blood cells, have been found to stimulate lipoprotein lipase activity only when assayed against an emulsified triglyceride substrate sonicated for a short period of time. The degree of stimulation was inversely related to the time of sonication of the substrate. Using chylomicrons as substrate no stimulation of lipoprotein lipase activity by pla
Through the Swedish employment act (Lag 1982:80 om Anställningsskydd) employers have the possibility to sign a probationary employment with the employee. The atypical contracts are constructed according to the preparatory work to give the employee enough time to prove his or hers skill and also for the employer to determine if the employee is suitable for the establishment. The probationary employGenom lagen om anställningsskydd (LAS 1982:80) har arbetsgivaren i Sverige möjligheten att sluta avtal om provanställning. Provanställningen är en säregen anställningsform som enligt förarbetena har som syfte att ge arbetstagaren tid att visa sin arbetsförmåga för arbetsgivaren för att den senare skall kunna avgöra vid anställningens utgång ifall arbetstagaren är lämplig för jobbet. Provanställnin
