The effects of feed strength, hydraulic residence time (HRT), and operational temperatures on soluble microbial product (SMP) production were investigated, to gain insights into the production mechanism. A carrier...The effects of feed strength, hydraulic residence time (HRT), and operational temperatures on soluble microbial product (SMP) production were investigated, to gain insights into the production mechanism. A carrier anaerobic baffled reactor (CABR) treating dilute wastewater was operated under a wide range of operational conditions, namely, feed strengths of 300-600 mg/L, HRTs of 9- 18 h, and temperatures of 10-28℃. Generally, SMP production increased with increasing feed strength and decreasing temperature. At high temperature (28℃), SMP production increased with decreasing HRT. As the temperature was decreased to 18 and 10℃, the SMP production was at its peak for 12 h HRT. Therefore, temperature could be an important determinant of SMP production along with HRT. A higher SMP to soluble chemical oxygen demand (SCOD) ratio was found at high temperature and long HRT because of complete volatile fatty acid degradation. SMP accounted for 50%-75% of the SCOD in the last chamber of the CABR. As a secondary metabolite, some SMP could be consumed at lower feed strength.展开更多
目的系统评价癌易感性候选基因2(CASC2)表达水平与癌症患者临床特征及预后价值的关系。方法计算机检索PubMed、Web of Science、Embase、Cochrane Library、OVID、中国知网、万方和维普等数据库中有关CASC2表达与癌症预后相关的病例-对...目的系统评价癌易感性候选基因2(CASC2)表达水平与癌症患者临床特征及预后价值的关系。方法计算机检索PubMed、Web of Science、Embase、Cochrane Library、OVID、中国知网、万方和维普等数据库中有关CASC2表达与癌症预后相关的病例-对照研究,截止时间为2018年5月9日。结果共纳入了13个病例-对照研究,包括923例患者。Meta分析结果显示:CASC2的低表达与患者淋巴结转移(OR=0.76,95%CI=0.48~1.20)和远处转移(OR=0.74,95%CI=0.42~1.32)均无关,但CASC2低表达与TNM分期(OR=0.31,95%CI=0.23~0.41)和总生存期(HR=0.46,95%CI=0.37~0.58)显著相关。结论 CASC2的低表达是癌症患者不良预后的危险因素;CASC2可作为评价恶性肿瘤患者预后的潜在生物标志物。展开更多
文摘The effects of feed strength, hydraulic residence time (HRT), and operational temperatures on soluble microbial product (SMP) production were investigated, to gain insights into the production mechanism. A carrier anaerobic baffled reactor (CABR) treating dilute wastewater was operated under a wide range of operational conditions, namely, feed strengths of 300-600 mg/L, HRTs of 9- 18 h, and temperatures of 10-28℃. Generally, SMP production increased with increasing feed strength and decreasing temperature. At high temperature (28℃), SMP production increased with decreasing HRT. As the temperature was decreased to 18 and 10℃, the SMP production was at its peak for 12 h HRT. Therefore, temperature could be an important determinant of SMP production along with HRT. A higher SMP to soluble chemical oxygen demand (SCOD) ratio was found at high temperature and long HRT because of complete volatile fatty acid degradation. SMP accounted for 50%-75% of the SCOD in the last chamber of the CABR. As a secondary metabolite, some SMP could be consumed at lower feed strength.
文摘目的系统评价癌易感性候选基因2(CASC2)表达水平与癌症患者临床特征及预后价值的关系。方法计算机检索PubMed、Web of Science、Embase、Cochrane Library、OVID、中国知网、万方和维普等数据库中有关CASC2表达与癌症预后相关的病例-对照研究,截止时间为2018年5月9日。结果共纳入了13个病例-对照研究,包括923例患者。Meta分析结果显示:CASC2的低表达与患者淋巴结转移(OR=0.76,95%CI=0.48~1.20)和远处转移(OR=0.74,95%CI=0.42~1.32)均无关,但CASC2低表达与TNM分期(OR=0.31,95%CI=0.23~0.41)和总生存期(HR=0.46,95%CI=0.37~0.58)显著相关。结论 CASC2的低表达是癌症患者不良预后的危险因素;CASC2可作为评价恶性肿瘤患者预后的潜在生物标志物。