Filtyp
We acclimated two species of sculpin, the freshwater prickly sculpin (Cottus asper) and the closely related marine Pacific staghorn sculpin (Leptocottus armatus) to freshwater (similar to 0 g/L), brackish water (15 g/L), and seawater (30 g/L) for at least 4 wk and examined the relationships between respiration, ion regulation, gill morphology, and freshwater tolerance. The prickly sculpin successf
We compute strain distributions in core-shell nanowires of zinc blende structure. We use both continuum elasticity theory and an atomistic model, and consider both finite and infinite wires. The atomistic valence force-field (VFF) model has only few assumptions. But it is less computationally efficient than the finite-element (FE) continuum elasticity model. The generic properties of the strain di
Damping off and chronic root rot of sugar beet caused by Aphanomyces cochlioides is a major constraint in cultivation of sugar beet, with occurrence of the disease in Sweden being concentrated to specific areas. This study examined soil factors that can be used for risk assessment of Aphanomyces root rot. Soils from 134 field plots were assessed over three years for Aphanomyces root rot potential
Most bacteria with a rod-shape morphology contain an actin-like cytoskeleton consisting of MreB polymers which form helical spirals underneath the cytoplasmic membrane to direct peptidoglycan synthesis for elongation of the cell wall. In contrast MreB of Streptomyces coelicolor is not required for vegetative growth, but has a role in sporulation. Beside MreB, S. coelicolor encodes two further MreB
A study was undertaken to measure the effects of conspecific density on the growth, mortality and deformity rate of yellowtail kingfish Seriola lalandi Valenciennes during the first feeding period. Newly hatched larvae were stocked in replicate tanks at initial densities of 40, 60 and 100 ind. l(-1) until 30 d post-hatch (DPH). Live prey was administered at frequent intervals in an effort to maint
Ribonucleotide reductase (RNR) is the only source for de novo production of the four deoxyribonucleoside triphosphate (dNTP) building blocks needed for DNA synthesis and repair. It is crucial that these dNTP pools are carefully balanced, since mutation rates increase when dNTP levels are either unbalanced or elevated. RNR is the major player in this homeostasis, and with its four different substra
Aims/hypothesis Many cystic fibrosis patients are vitamin D-insufficient. Cystic fibrosis-related diabetes is a major complication of cystic fibrosis. The literature suggests that vitamin D might possess certain glucose-lowering properties. We aimed to assess the relationship between vitamin D and cystic fibrosis-related glucose intolerance. Methods We enrolled 898 cystic fibrosis patients from Sw
Objective. The volume of colonoscopies performed is increasing and differences in colonoscopy practice over time and between centres have been reported. Examination of current practice is important for benchmarking quality. The objective of this study was to examine variations in colonoscopy practice in endoscopy centres internationally. Material and methods. This observational study prospectively
Popular Abstract in Swedish Transplantation av dopaminceller från mänskliga foster kan förbättra funktionen hos patienter med Parkinsons sjukdom (Lindvall 1997, Björklund 2000a). Man har kunnat visa att transplantaten har återställt dopaminproduktionen i striatum till normala nivåer i flera fall, och till 70-80% av normalt i majoriteten av de patienter som transplanterats i Lund. Transplantaten haTransplantation of embryonic human neural tissue can restore function in patients with Parkinson’s disease, but there is a severe shortage of donor tissue which limits the applicability of the technique. Embryonic neural tissue from other species, xenogeneic tissue, would provide a readily accessible donor tissue with the potential to help patients if the immunological reactions in the host could
Popular Abstract in Swedish Att bedöma välbefinnande hos patienter med mag/tarmcancer Avhandlingen handlar om undernäring, beroende/oberoende i det dagliga livet och uppfattningar om hälsorelaterad livskvalitet hos patienter som opereras pga cancer i mag/tarmkanalen. Enligt journaldokumentation hos 45 patienter som opererades 1985-89, för cancer i bukspottkörteln, hade patienterna ett försämrat nThe aim was to study some aspects of patients´ well-being, related to nutrition, activities of daily living and health related quality of life, when undergoing major gastrointestinal cancer surgery. Chart documentations (N=45) of patients undergoing subtotal pancreatectomy were studied, and showed the patients' well-being to be affected, although it was not possible to fully evaluate the results o
A perpetual series of terror attacks have caused the European Union to shake in its foundations. In the face of the escalating transnational threat of terrorism, decision-makers, under severe public pressure, have repeatedly called for deeper international intelligence cooperation. A bold idea currently being debated is the establishment of a new European Intelligence Unit (EIU) in the field of co
Transistors are used in all digital devices today. The demand of faster and smaller devices such as mobile telephones and computers constantly drives the develop- ment of smaller transistor technologies. Transistors can also be used in analog applications. Today there are commercial chips with both radio and digital sys- tems in the same package. Cellular Internet of Things (IoT) is expected to ma
In enology, "Brett" character refers to the wine spoilage caused by the yeast Dekkera/Brettanomyces bruxellensis and its production of volatile phenolic off-flavours. However, the spoilage potential of this yeast is strain-dependent. Therefore, a rapid and reliable recognition at the strain level is a key point to avoid serious economic losses. The present work provides an operative tool to assess
Currently available research suggests that negative pressure wound therapy (NPWT) creates a moist wound healing environment, drains exudate, reduces tissue edema, contracts the wound edges, mechanically stimulates the wound bed, and influences blood perfusion at the wound edge, which may lead to angiogenesis and the formation of granulation tissue. Although no clear evidence is available that NPWT
Long-term phenology monitoring has documented numerous examples of changing flowering dates during the last century. A pivotal question is whether these phenological responses are adaptive or not under directionally changing climatic conditions. We use a classic dynamic growth model for annual plants, based on optimal control theory, to find the fitness-maximizing flowering time, defined as the sw
The present study aimed to investigate how the impact of several factors linked to geography would shape life-history traits in a gregarious species, using the pine processionary moth (PPM) Thaumetopoea pityocampa as a model system. PPM has a wide geographical distribution over the Mediterranean Basin, and it is a strictly gregarious species throughout larval development, where the total reproduct
Ökande skador på skogen har observerats i stora delar av Europa sedan mitten av 1970-talet. Samma indikationer på skador sågs ganska snart även i Sverige. Skadorna observerades först på barrträdsbestånd, men under 1980-talet observerades även skador på lövträd, framförallt hos bok och ek. Skogsstyrelsen lät till följd av detta genomföra skogsskadeinventeringar 1988, 1993 och 1999 av bok (Fagus sylSince the middle of the 1970´s damage to forest have been observed in large areas of central Europe. The same indications on forest damage were soon found in Sweden as well. Forest damage was first observed in coniferous forest stands, but during the 1980´s damage indication were also observed on deciduous forest stand, particularly on beech and oak. To investigate this further the National Board
Nowadays, multiple antennas are becoming widely used in small mobile terminals as they can significantly improve wireless communication performance in terms of link reliability and spectral efficiency. Also, pattern reconfiguration is another new trend for antenna design as it enables the antennas to adapt to different propagation and user scenarios. However, due to the limited space in the termin
Since the demands for energy efficient buildings becomes higher and higher it is interesting to look at how we use our energy inside the buildings. Approximately 87% of all energy used inside a house is used for heat, a good way to lower our energy use would therefore be to lower the amount of energy needed for heat. Today there are several different types of heating systems, some regarded more en
The baobab is among the commonly consumed wild fruits found in the semi-arid regions of sub-Saharan Africa. It has a wide application in food systems and folk medicine and has an advantage of surviving even in harsh environmental conditions. While the fruit pulp is packed with a lot of essential nutrients and has gained much interest in recent past on the international market as a healthy ‘superfo
