Learn More
Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. Theory and climate modelling suggest that the sensitivity of Earth's climate to changes in radiative 15 forcing could(More)
We have isolated and characterized two human middle repetitive alphoid DNA fragments, L1.26 and L1.84, which localize to two different sets of chromosomes. In situ hybridization revealed both repeats to have major and minor binding sites on the pericentric regions of several chromosomes. Probe L1.26 maps predominantly to chromosomes 13 and 21. Probe L1.84(More)
By use of a rapid technique, initial rates of D-glucose transport were obtained during the lifespan in vitro of a commercially available strain of human embryo lung fibroblasts (Flow 2000). The apparent Km of the D-glucose carrier did not change during senescence in vitro: x = 1.8 mM (range 1.3-2.3) in phase II, x = 1.8 mM (range 1.5-2.2) in phase III.(More)
Ferrokinetic perturbations in peripheral blood of mice treated with 90Sr-90Y were demonstrated previously. This paper deals with the effects of 90Sr-90Y treatment (2.5, 5, and 10 microCi/mouse), on the haemopoietic stem cell compartment and on the immune-status. The frequency and kinetics of haemopoietic stem cells in femoral marrow (determined as colony(More)
Modulation of radiosensitivity by components of the extracellular matrix (ECM) and cytoskeletal elements has not been adequately studied. Although differences in the radiosensitivities of cells grown as monolayers, as spheroids, or grown in vitro in animal models are known, explanations have in the past neglected possible influences by the ECM and(More)
The childhood leukemia cluster in the proximity of the German nuclear establishments of Geesthacht is unique in its spatial and temporal concentration. After a steep increase in cases in 1990, the cluster continues to show a significant increase up to the present. Early investigations of blood samples from a casual sample of local residents showed an(More)
Absolute integrated band intensities of acetone (CH3)2CO in the region of 830-3200 cm(-1) have been measured near the temperatures of 233, 260 and 293 K. The spectra were recorded with a Fourier transform infrared (FTIR) spectrometer. The investigated region encompasses a total of 15 fundamental bands. At 293 K, for example, the band intensities range from(More)
Absolute band intensities of acetone ((CH3)2CO) in the nu19/nu23 and nu7 band systems near 530 and 777 cm(-1), respectively, were measured at temperatures of 232, 262 and 295 K, using a Fourier transform infrared (FTIR) spectrometer. No evident temperature dependence for the band intensities was observed. The dipole moments and the fundamental band(More)
The uptake of 14C-labeled D-glucose into the cellular space of human diploid fibroblasts (Flow 2000)--grown to confluency and detached with trypsin-EDTA--was studied using silicone-oil-layerfiltering centrifugation. This method is rapid enough to enable the determination of initial transport rates, which are not complicated by subsequent metabolism of the(More)