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Double Star Program (DSP) aims to investigate the trigger mechanism and physical models of geomagnetic storms and substorms. The DSP involves two satellites: the equatorial satellite of DSP (TC-1 in China) and the polar satellite of DSP (TC-2 in China). On board the two satellites of TC-1 and TC-2, there are four kinds of particle instruments developed by(More)
  • C Y Li, T Wu, +6 authors L E Mo
  • 1997
AIM To compare the total coumarins from dried fruits of Cnidium monnieri (TCCM) and nilestriol (Nil) against osteoporosis. METHODS SD rats (40, female, 3-month-old) were randomly divided into basal control, age control, ovariectomized (Ova), Ova + TCCM 67 mg.kg-1, Ova + TCCM 200 mg.kg-1, 6 times a week, and Ova + Nil 1 mg.kg-1, i.g. once a week. After 12(More)
RAPD analysis was performed by applying a set of 24 arbitrary primers to all the allopolyploids and their diploid progenitors in Aegilops L. The analysis based on 313 RAPD fragments revealed that the allopolyploids carrying D genome grouped with Ae. squarrosa (DD) in one cluster. The allopolyploids carrying U genome grouped with Ae. umbellulata (UU) in(More)
Proto-oncogene ras is an important gene for suppress the animal cells apoptosis. To analyze the presence of homologous sequences of ras in maize and rice, Southern blot hybridization was performed and positive signals was detected in these two species' genomes. The physical location of the ras homologous sequences was also carried out in maize chromosome by(More)
The study aimed to explore the effect of Saikosaponin-d (SSd) and its underlying mechanism on cell growth inhibition as well as induction of apoptosis and cell cycle arrest in renal cell carcinoma (RCC). MTT assay and colony formation assay were employed in this study, with the results indicating that RCC cells proliferation was inhibited by SSd at(More)
This paper describes the DNA damage by hydrogen peroxide in HL-60 cells and the detection of 8-hydroxyguanine produced. The number of cells was at least about 2 x 10(7)/sample. Treatment of HL-60 cells with 0.4 mmol/L hydrogen peroxide for 24 h would result in DNA damage. The DNA samples were isolated, then qualitatively and quantitatively analyzed before(More)
OBJECTIVE To evaluate the incidence, bacterial spectrum and predictive risk factors for stent associated respiratory tract infection (SARTI). METHODS A prospective nested case-control study was conducted to evaluate the incidence of SARTI and the predictive risk factors for SARTI. Respiratory symptoms, sputum bacterial culture, electronic bronchoscopy(More)
BACKGROUND AND OBJECTIVES The head and neck region is the second most frequent anatomical site of extranodal lymphomas. These tumours affect many individuals worldwide, justifying epidemiological studies in different countries. This study evaluated the characteristics, treatments and prognostic factors for non-Hodgkin's lymphoma of the head and neck in(More)
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