The effects of thymosin and spleen factors extracted by the same procedure as thymosin preparation were examined on human cord blood erythroid colony growth by the methyl cellulose colony assay. We employed 0.5 U of Epo for CFU-E assay and 2 U for BFU-E. As the results, thymosin V-1 (10 pg) and spleen V-1 (10 pg) with Epo increased in a number of cord blood CFU-E by approximately 16 1 % and 142%, respectively, when compared with that of Epo alone. None of colonies were produced without Epo on this system. On the contrary, thymosin V-2 showed marked suppression upon the cord blood CFU-E with an increase in the concentration. Moreover, spleen V-2 slightly suppressed a number of cord blood CFU-E. Burst promoting activity was not seen on thymosin V-1 and spleen V-1 nor they increased in number of cord blood BFU-E with the high concentration of Epo.These results suggest that thymosin V-1 and spleen V-1 stimulate cord blood CFU-E in the presence of Epo. (Abstract of Nippon Shonikagakkai Zasshi (Acta. Paed. Jpn. Japanese ed.) 87(2) 1983) Acta Paediatr Jpn
In this article, the quantum dot intermixing (QDI) technique previously developed for 1550 nm‐band InAs/InAlGaAs QD is applied to 1200 nm‐band InAs/GaAs QD. Three methods of defect introduction for triggering the QDI are used such as inductively coupled plasma reactive ion etching (ICP‐RIE) (Ar+) and ion implantation (Ar+ and B+). As a result, about 80 nm photoluminescence (PL) peak wavelength shift is obtained for ICP‐RIE when annealing is performed at 575 °C, after etching down to 450 nm to the QD layer. On the contrary, about 110 nm PL peak wavelength shift is obtained for B+ ion implantation at an acceleration energy of 120 keV and a dose of 1.0 × 1014 cm−2 and subsequent annealing. Cross‐sectional image analyses by scanning transmission electron microscope (STEM) and energy‐dispersive X‐ray spectroscopy (EDX) clarified the modification of InAs QD structures by the QDI process.
We have established NICU (Neonatal Intensive Care Unit) in our hospital and have made efforts to improve the contents of medical treatment since 1976 in order to establish a regionalization of neonatal medical treatment.Thus are main items of the improvement:1. Completed the apparatuses and equipments needed in Intensive Care.2. Promoted the communication with regional facilities of delivery so as to enable immature or stressed mature babies to be transported to our hospital at all hours.3. Made Pediatrician attend all the deliveries with high risk factors and treat the asphyxiated newborn right after the delivery.We have recorded the results of comparison of the death rate of immature babies at different birth weight treated in our hospital, and of the perinatal mortality in our Obstetric Department in the pie-improvement period of 5 years (1971)(1972)(1973)(1974)(1975) and in the post-improvement period of 4 years (1976)(1977)(1978)(1979) respectively. The results are as follows:1. A comparison of the death rate of immature babies at different birth weight.In comparison of pre and post improvement, under 1,000 g we haven't had enough cases to compare, besides most of the babies have died. However, at the weight between 1,001-1,500 g, the
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