目的：探讨保留尿道前列腺切除术常见并发症及产生原因，以提高其治疗效果。方法：对157例有症状的良性前列腺增生症(BPH)患者行保留尿道前列腺切除术。术后随访3个月～6年。结果： 术中和术后并发症有尿道损伤105例,膀胱颈损伤12例,精...目的：探讨保留尿道前列腺切除术常见并发症及产生原因，以提高其治疗效果。方法：对157例有症状的良性前列腺增生症(BPH)患者行保留尿道前列腺切除术。术后随访3个月～6年。结果： 术中和术后并发症有尿道损伤105例,膀胱颈损伤12例,精囊损伤5例,术中大量出血达500 ml 2例，腺体残留1例，膀胱肿块残留1例，轻度尿失禁5例，尿道狭窄2例。结论：术前全面检查、术中致细操作、术后控制尿路感染可减少并发症的发生。展开更多
The current study describes the molecular characterization of a clone which can restore the ability of bdh A mutant strains NGRPA2 and Rm11107 to utilize 3-hydroxybutyrate as a sole carbon source (Hbu+ ). This clone w...The current study describes the molecular characterization of a clone which can restore the ability of bdh A mutant strains NGRPA2 and Rm11107 to utilize 3-hydroxybutyrate as a sole carbon source (Hbu+ ). This clone was screened out by complementation experiment from Bradyrhizobium japonicum US-DAI 10 genomic library, and the presence of bdhA gene in the clone was verified by Bdh assay and Southern blot analysis. Furthermore, the entire sequence of bdhA. gene was sequenced and the sequence was deposited in GenBank database under the accession number AY077581. bdhA gene comprises 789 base pairs and encodes Bdh with 262 amino acid of MW 27.59 kDa. Interposon JlKm was inserted into the bdhA ORF at EcoR I site and the bdhA mutant was constructed in B .japonicum by homologous recombination. Plant assay result did not show obvious effects of mutation of bdhA gene on nodulation and nitrogen-fixation.展开更多
This paper will correct some gaps existing in the proof of a theorem written in an earlier paper by the author on the lower bounds for sums of BDH type published in 1993. Some improvements upon the previous version of...This paper will correct some gaps existing in the proof of a theorem written in an earlier paper by the author on the lower bounds for sums of BDH type published in 1993. Some improvements upon the previous version of that theorem will be obtained.展开更多
Li-Zn mixed ferrites with composition formula ZnxLi0.5-x/2Fe2.5-x/2O4 (0.2≤x≤0.8) were prepared by the usual ceramic method in 1000~1150℃. The effects of Zn substitution and sintering temperature on the formation, ...Li-Zn mixed ferrites with composition formula ZnxLi0.5-x/2Fe2.5-x/2O4 (0.2≤x≤0.8) were prepared by the usual ceramic method in 1000~1150℃. The effects of Zn substitution and sintering temperature on the formation, densification, microstructure and a.c. electrical conductivity have been studied. Under the effect of changing the firing temperature and Zn content, high sintered Li-Zn ferrite bodies are achieved. More fine structure bodies having high electrical resistance are obtained at high Zn content展开更多
文摘目的：探讨保留尿道前列腺切除术常见并发症及产生原因，以提高其治疗效果。方法：对157例有症状的良性前列腺增生症(BPH)患者行保留尿道前列腺切除术。术后随访3个月～6年。结果： 术中和术后并发症有尿道损伤105例,膀胱颈损伤12例,精囊损伤5例,术中大量出血达500 ml 2例，腺体残留1例，膀胱肿块残留1例，轻度尿失禁5例，尿道狭窄2例。结论：术前全面检查、术中致细操作、术后控制尿路感染可减少并发症的发生。
文摘The current study describes the molecular characterization of a clone which can restore the ability of bdh A mutant strains NGRPA2 and Rm11107 to utilize 3-hydroxybutyrate as a sole carbon source (Hbu+ ). This clone was screened out by complementation experiment from Bradyrhizobium japonicum US-DAI 10 genomic library, and the presence of bdhA gene in the clone was verified by Bdh assay and Southern blot analysis. Furthermore, the entire sequence of bdhA. gene was sequenced and the sequence was deposited in GenBank database under the accession number AY077581. bdhA gene comprises 789 base pairs and encodes Bdh with 262 amino acid of MW 27.59 kDa. Interposon JlKm was inserted into the bdhA ORF at EcoR I site and the bdhA mutant was constructed in B .japonicum by homologous recombination. Plant assay result did not show obvious effects of mutation of bdhA gene on nodulation and nitrogen-fixation.
文摘This paper will correct some gaps existing in the proof of a theorem written in an earlier paper by the author on the lower bounds for sums of BDH type published in 1993. Some improvements upon the previous version of that theorem will be obtained.
文摘Li-Zn mixed ferrites with composition formula ZnxLi0.5-x/2Fe2.5-x/2O4 (0.2≤x≤0.8) were prepared by the usual ceramic method in 1000~1150℃. The effects of Zn substitution and sintering temperature on the formation, densification, microstructure and a.c. electrical conductivity have been studied. Under the effect of changing the firing temperature and Zn content, high sintered Li-Zn ferrite bodies are achieved. More fine structure bodies having high electrical resistance are obtained at high Zn content
