Hematopoiesis is a lifelong, dynamic process, originating from a low number of hematopoietic stem cells (HSCs) residing in the adult bone marrow with the ability to self-renew and generate all blood lineages throughout life. Recent findings have demonstrated that the Homeobox (Hox) transcription factors are important regulators of both normal and malignant hematopoiesis, controlling proliferation,

A tegumental sensory organ is described in Derocheilocaris typica. It consists of sensory cells, the somata of which are situated in the rim of the central nervous system. They give rise to long dendrites, each of which transforms to one cilium. Three cilia surface in small pegs on the body. In the labrum there are seven peg sensilla with five and three with two cilia each that emerge in small por

Rapid anthropogenic climate change is already affecting species distributions and ecosystem functioning worldwide. We applied niche-based models to analyse the impact of climate change on tree species and functional diversity in Europe. Present-day climate was used to predict the distributions of 122 tree species from different functional types (FT). We then explored projections of future distribu

Circulating levels of insulin-like growth factor-I (IGF-I) and insulin-like growth factor-binding protein 3 (IGFBP-3) vary considerably between normal individuals. Recent epidemiological studies have provided evidence that these levels are predictive of risk of several common cancers. To evaluate possible sources of variation of the levels of circulating IGF-I and IGFBP-3 in females, we studied sp

Flow cytometric assessments of DNA ploidy status and the S-phase fraction (SPF) have been shown to yield prognostic information in breast cancer. The aim of the present investigation was to elucidate the reproducibility of results with regard to tumor DNA heterogeneity, and to ascertain whether the prognostic value of DNA measurements might be enhanced by analyzing two pieces of a tumor instead of

We have investigated the Au-catalyzed GaAs B whisker growth under low-pressure metal-organic vapour phase epitaxy conditions. By varying the growth temperature we found a maximum in the whisker growth rate at about 450-475degreesC. With increasing temperature the growth rate decreases due to competing growth at the (111) substrate surface and at the {I 101 whisker side facets, which leads to sign

A report on the long-term follow up of the first cooperative Scandinavian Sarcoma Group study in Ewing's sarcoma of bone is presented. Fifty-two previously untreated patients entered the study between 1984 and 1990. Half of the tumors were located in the extremities and one quarter in the pelvis. The combined modality treatment consisted of 5 cycles of chemotherapy--including vincristine, methotre

We have in an earlier paper, [1], presented a generalization, the Linked Dipole Chain Model LDC, of the model developed by Ciafaloni-Catani-Fiorani-Marchesini, [2], to decribe the structure functions and the states in Deep Inelastic Scattering events. In this paper we would like to present an investigation of a set of general features of the LDC Model, viz the behaviour of the structure functions

Popular Abstract in Swedish De perifera nervstammarna i extremiteterna förmedlar signaler, dels till muskler, dels från känselkroppar som är belägna i bl a huden. Nervstammarna kan av olika orsaker utsättas för skador orsakade av vassa eller skärande föremål eller av olika typer av slitvåld. Nervskador ger ett mycket stort handikapp för den enskilde patienten som förlorar muskelfunktion och känselNerve injuries have a profound impact on individuals, suffering for the patients and induce cost for society. When dealing with severe nerve injuries that create a gap between nerve segments or when the injury is at the brachial plexus level, the clinical alternatives are limited. The brachial plexus model and its branches in the forelimb was evaluated as an experimental model for studies of nerve

D. Briihl and A. W. Inhoff (1995) found that exterior letter pairs showed no privileged status in reading when letter pairs were presented as parafoveal primes. However, T. R. Jordan, S. M. Thomas, G. R. Patching, and K. C. Scott-Brown (2003) used a paradigm that (a) allowed letter pairs to exert influence at any point in the reading process, (b) overcame problems with the stimulus manipulations u

Alteration of the transforming growth factor beta (TGFB) signalling pathway is important in pancreatic carcinogenesis, as shown by the frequent inactivation of the downstream target SMAD4. We recently analysed a series of pancreatic carcinoma cell lines with respect to alterations of five SMAD genes involved in TGFB signalling, and showed that SMAD4 was structurally rearranged in 42% of these. Thi

Wei G, Bergquist A, Broome U, Lindgren S, Wallerstedt S, Almer S, Sangfelt P, Danielsson A, Sandber-Gertzen H, Loof L, Prytz H, Bjomsson E (Sahlgrenska University Hospital, Gothenburg; Karolinska University Hospital, Huddinge, Stockholm; University Hospital MAS, Malmo; University Hospital, Linkoping; University Hospital, Uppsala; University Hospital, Umea; University Hospital, Orebro; Central Hosp

Several studies have tried to link southern oscillation index (Sol) and observed precipitation in Korea and Japan. However, so far no clear relationship between the Sol and the precipitation in the area has been found. In the present study, categorized Sol are used to reveal quantitative and statistically significant influence on monthly precipitation at Busan in Korea and at Fukuoka in Japan. Mon

Arbuscular mycorrhizal (AM) development in different soil types, and the influence of AM fungal hyphae on their original soil were investigated. Plantago lanceolata, which can grow in soils of a very wide pH range, was grown in two closely related limestone soils and an acid soil from rock habitats. Plants were colonised by the indigenous AM fungal community. The use of compartmented systems allow