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Parallel hardware has become readily available to the computational chemistry research community. This perspective will review the current state of parallel computational chemistry software utilizing high-performance parallel computing platforms. Hardware and software trends and their effect on quantum chemistry methodologies, algorithms, and software development will also be discussed.
Objective. Large-bore catheters for temporary haemodialysis are often placed via the internal jugular or femoral vein, guided by external landmarks or ultrasound techniques. Inadvertent femoral artery catheterization may occur during attempted placement of the dialysis catheter in the femoral vein. Material and methods. This investigation was carried out in Skane University Hospital, Malmo, Sweden
An introduction into the area of inverse problems for the Schrodinger operators on metric graphs is given. The case of metric finite trees is treated in detail with the focus on matching conditions. For graphs with loops we show that for almost all matching conditions the potential on the loop is not determined uniquely by the Titchmarsh-Weyl function. The class of all admissible potentials is cha
Bio-energy production from lignocelluloses biomass has gained a lot of interest in recent years. Miscanthus sp. are high lignocelluloses biomass yielding with relatively high carbohydrate content cultivable on different soils and under climatic conditions. However, the lignocellulosic nature means that cellulose and hemicellulose are cover by lignin network that might limit hydrolysis. In this stu
The Gaussian linear wave model, which has been successfully used in ocean engineering for more than half a century, is well understood, and there exist both exact theory and efficient numerical algorithms for calculation of the statistical distribution of wave characteristics. It is well suited for moderate seastates and deep water conditions. One drawback, however, is its lack of realism under ex
Popular Abstract in Swedish Dagens samhälle är allt mer beroende av elektroniska hjälpmedel så som smarta telefoner, läsplattor, datorer osv. Prestandakraven ökar i en allt högre takt och därför måste även den bakomliggande teknologin följa samma trend. De flesta av oss vill att den nya mobiltelefonen ska ha så hög kameraupplösning som möjligt men få av oss tänker på att detta medför en större mäFast and reliable data transmission together with high bandwidth efficiency are important design aspects in a modern digital communication system. Many different approaches exist but in this thesis bandwidth efficiency is obtained by increasing the data transmission rate with the faster-than-Nyquist (FTN) framework while keeping a fixed power spectral density (PSD). In FTN consecutive information
Screening mammography plays a key role in the early detection of breast cancer, however, estimates of sensitivities (48-88%) and specificities (82-98%) suggest that the diagnostic accuracy can be improved (1, 2, 3). Breast tomosynthesis (BT) is a 3D technique that is expected to improve breast cancer detection compared to screen-film and digital mammography DM). This work presents two clinical obs
This work investigates the imaging performance, in terms of contrast and resolution, of two different time-gated ballistic imaging setups commonly used in spray research. It is shown that the two setups generate similar spatial resolution in the presence of scattering media. The simpler (2f) setup, however, is less sensitive to component misalignments and time-gate induced aberrations than the com
A common problem across scientific fields and industries is data storage. This thesis presents an open-source lossy data compression tool with its foundation in Machine Learning - Baler. Baler has been used to compress High Energy Physics (HEP) data, and initial compression tests on Computational Fluid Dynamics (CFD) toy data have been performed. For HEP, a compression ratio of R = 1.6 has generat
Bakgrund: Ventilator associerad pneumoni (VAP) är ett medicinskt tillstånd som innebär allvarliga konsekvenser för den drabbade intensivvårdspatienten, i form av hotad livskvalité och överhängande risk för morbiditet och mortalitet. Direkta konsekvenser såsom till exempel förlängd vårdtid innebär större kostnader för sjukvården och samhället därav är det av vikt att implementera effektiva interven
The demand for kidney transplantation is growing while the number of donors continues to be insufficient, prolonging the process. Today’s method has a short time frame for carrying out the transplant, where the kidney must be taken out within 30-60 minutes after death. Due to lack of time and logistics, this often creates a major problem and inhibits transplantation. UGLK Science has developed a s
Bakgrund: Övergången från barn till vuxen är en kritisk period i livet där många förändringar sker under kort tid, vilket kan resultera i en förändrad aktivitetsbalans och aktivitetsmönster då unga vuxnas vanor, roller och rutiner förändras. Komplexiteten i transitionen kan leda till psykiska besvär eller psykiatriska tillstånd. Behovet är därför stort av att erbjuda unga vuxna med nämnda problema
Prostate cancer was in 2012 the second most common type of cancer for males globally. To be able to treat prostate cancer in the most effective way it is important to know how aggressive the cancer is. This aggressiveness is graded using the Gleason score. The diagnosis is done by pathologists inspecting prostate biopsies, but the advancement of pattern recognition using Convolutional Neural Netwo
Bakgrund: Personer med diagnosen ADHD beskriver ofta flera aktivitetsproblem kopplade till arbete. Exempel på detta kan vara att de har svårt att strukturera upp arbetet, prioritera arbetsuppgifter och koncentrera sig. Detta bidrar till svårigheter i att behålla arbetet. Studier har visat att det finns en stor kunskapslucka kring vilka interventioner som erbjuds personer med ADHD som är i arbetsfö
This research puts together two massive areas: voluntary certification programmes, specifically Type I ecolabelling (ISO 14024), aimed to incentivise and assist in providing customers with sustainable in all meanings products; and rechargeable batteries – inalienable element of portable electronic products. Moreover, the importance of batteries lifts up to an absolutely new level – with a rapid de
