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We analysed the role of the prechordal plate in forebrain development of chick embryos in vivo. After transplantation to uncommitted ectoderm a prechordal plate induces an ectopic, dorsoventrally patterned, forebrain-like vesicle. Grafting laterally under the anterior neural plate causes ventralization of the lateral side of the forebrain, as indicated by a second expression domain of the homeobox

Using harmonic maps we provide an approach towards obtaining explicit solutions to the incompressible two-dimensional Euler equations. More precisely, the problem of finding all solutions which in Lagrangian variables (describing the particle paths of the flow) present a labelling by harmonic functions is reduced to solving an explicit nonlinear differential system in C-n with n = 3 or n = 4. Whil

Background: A study was carried out to explore the survival of xenogeneic full-thickness retinal transplants in the subretinal space of hosts without immunosuppression. Methods: Nine adult rabbits received a complete immature rat neuroretina in the subretinal space. No immunosuppression was given, and the animals were followed up for 15 or 34 days. The eyes were then examined histologically with h

To investigate whether preoperative retinal function measured by full-field ERG and multifocal ERG is correlated to postoperative visual acuity after macular hole surgery.

We construct three-dimensional families of small-amplitude gravity-driven rotational steady water waves of finite depth. The solutions contain counter-currents and multiple crests in each minimal period. Each such wave is, generically, a combination of three different Fourier modes, giving rise to a rich and complex variety of wave patterns. The bifurcation argument is based on a blow-up technique

Mat som kontaminerats av radionuklider genom till exempel radioaktivt nedfall kan ge höga stråldoser till kroppen. Nuklider med långa halveringstider kan ackumuleras i kroppen och ge en hög tidsintegrerad absorberad dos. Personer med kronisk njursvikt kan erhålla höga stråldoser efter intag av radionuklider eftersom många radionuklider utsöndras via njurarna. I den här undersökningen har vi studerHigh internal radiation doses can result from food, contaminated by radionuclides from for example nuclear fallout. Nuclides with long half-lifes can accumulate in the body and give a high time-integrated absorbed dose. Persons with end-stage renal disease can receive high absorbed doses after intake of radionuclides, since many radionuclides are mainly excreted by the kidneys. In this study the d

Populärvetenskaplig sammanfattning: Röjningsrösen kan härstamma från bronsålder och ända in i modern tid. De är svåra att datera då det inte finns några karaktäristika för ett röse som skapats under en viss tidsepok. Röjningsröseområden är likväl en stor källa till kunskap om hur jorden brukats under förhistorisk och historisk tid. Med hjälp av paleoekologi kan den förhistoriska miljön studeras. PIn the village Berg, Gällared’s parish, Halland, there is an area with 60 to 75 hectares of abandoned arable fields is present. Within Berg, Yttra Berg’s nature reserve is situated, where 9 hectares of the abandoned arable fields has been recorded, consisting of clearance cairns, terraces and stone walls. Close to the recorded abandoned arable fields a smaller bog, Sänkemosse, is situated. Nearby

​This book challenges the prevailing notion of stability, cohesiveness, and uniformity within Christian communities, inviting readers to view contestation and disagreement as integral to theological reflection and church identity. While the volume focuses predominantly on the Roman Catholic Church as a case study, various chapters broaden the exploration across other Christian and non-Christian tr

Denna uppsats behandlar några frågeställningar i samband med bristtäckningsansvar. Bestämmelserna om bristtäckningsansvar reviderades i samband med införandet av den nya aktiebolagslagen som trädde ikraft 1 januari 2006. Tre särskilda ansvarssituationer varpå en utomstående kan åläggas bristtäckningsansvar vid en olovlig värdeöverföring kommer främst att belysas. Dessa är medverkansansvar för ”ann