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NFH色素稳定性的研究 被引量:4
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作者 钟耀广 《黑龙江畜牧兽医》 CAS 北大核心 2004年第2期74-75,共2页
研究了亚硝基亚铁血色原 (NFH)色素的稳定性。结果表明 :随着温度的升高 ,NFH色素吸光度略有减少 ;随着加热时间的增加 ,色素的吸光度仅缓慢下降 ,说明色素对热的稳定性相对较好 ;随着贮藏时间的延长 ,NFH色素吸光度下降。经这次试验得... 研究了亚硝基亚铁血色原 (NFH)色素的稳定性。结果表明 :随着温度的升高 ,NFH色素吸光度略有减少 ;随着加热时间的增加 ,色素的吸光度仅缓慢下降 ,说明色素对热的稳定性相对较好 ;随着贮藏时间的延长 ,NFH色素吸光度下降。经这次试验得出 ,NFH色素的贮藏稳定性以 pH值 7为最好 ,pH值 4为最差 ;不同pH值的贮藏稳定性为 pH7>pH6 >pH8>pH5 >pH4。光照稳定性与贮藏稳定性相类似。 展开更多
关键词 色素 亚硝基亚铁血色原 稳定性 nfh 温度 吸光度 贮藏时间 PH值
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Does HIV Status Affect Utilization of Maternal Care Services among Women in India: An Analysis of NFHS 2005-2006
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作者 Vasudevan Jayachandran Damodar Sahu +1 位作者 Subramanian Rajaram Bo Pedersen 《World Journal of AIDS》 2015年第2期105-112,共8页
The objective of the study is to understand the relationship between HIV status, fertility and utilisa-tion of maternal care services in India using the NFHS 2005-2006 data. The mean number of children ever born (a me... The objective of the study is to understand the relationship between HIV status, fertility and utilisa-tion of maternal care services in India using the NFHS 2005-2006 data. The mean number of children ever born (a measure of fertility) is substantially higher among HIV-negative women than among the HIV-positive women (2.8 and 2.1 respectively). Ten-year age specific fertility rates (ASFR) were calculated, there is no noticeable difference in pattern of ASFR between HIV-positive and HIV-negative category of women observed though the ASFRs were substantially lower among the HIV-positive women. The total fertility rate (TFR) among HIV-positive women (0.84) is substantially lower at one third of the TFR among HIV-negative women (2.78). The proportion of HIV-positive pregnant women utilising ANC services is 92 percent compared to 78 percent among HIV-negative women, who have alive birth during the 5-year preceding the survey. Similarly, the proportion of HIV-positive women (67%) delivering their babies in an institution is also much higher than among HIV-negative women (40%). This study concludes that the effort of the government to integrate ART services with maternity care services is likely to have benefited the HIV positive mothers. 展开更多
关键词 HIV-POSITIVE Total FERTILITY Rate REPRODUCTIVE Health nfhS
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新型多功能髓心减压器治疗非创伤性股骨头缺血性坏死86例的随访报告 被引量:10
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作者 胡春明 赵义 +3 位作者 张伟 秦大明 张新 徐莘香 《骨与关节损伤杂志》 2000年第4期256-257,共2页
目的 采用自制新型髓心减压器治疗股骨头缺血性坏死的远期疗效观察。方法 本组 86例 (94个股骨头 ) ,全部采用新型减压器治疗 ,一期植骨。平均随访 5年 4个月。术后行X线及磁共振检查 ,并采用Harris评分评价疗效。结果 绝大部分病例... 目的 采用自制新型髓心减压器治疗股骨头缺血性坏死的远期疗效观察。方法 本组 86例 (94个股骨头 ) ,全部采用新型减压器治疗 ,一期植骨。平均随访 5年 4个月。术后行X线及磁共振检查 ,并采用Harris评分评价疗效。结果 绝大部分病例疗效满意。 展开更多
关键词 股骨头缺血坏死 nfh 髓心减压器 磁共振成像
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pH值对亚硝基亚铁血色原色素制备的影响 被引量:7
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作者 钟耀广 《黑龙江畜牧兽医》 CAS 北大核心 2004年第3期75-76,共2页
用NO对血红素进行修饰 ,得到亚硝基亚铁血色原 (NFH)色素 ,并研究了pH值对NFH色素制备的影响。结果表明 :对于NFH色素的制备 ,最佳pH值为 6 .
关键词 PH值 亚硝基亚铁血色原 色素 制备 nfh 畜血 综合利用 食品添加剂
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微胶囊化的亚硝基亚铁血色原色素的制备及其在肉制品中的应用 被引量:5
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作者 钟耀广 《黑龙江畜牧兽医》 CAS 北大核心 2004年第5期72-74,共3页
采用喷雾干燥法对NFH(硝基亚铁血色原 )色素进行微胶囊化 ,并将其在肉制品中进行应用。结果表明 :壁材为麦芽糊精 (5 5 % )、β CD(2 5 % )和阿拉伯胶 (2 0 % ) ;芯材占壁材的添加量为 2 % ,喷雾干燥的进料流量为 5 0mL/min ;进风温度为... 采用喷雾干燥法对NFH(硝基亚铁血色原 )色素进行微胶囊化 ,并将其在肉制品中进行应用。结果表明 :壁材为麦芽糊精 (5 5 % )、β CD(2 5 % )和阿拉伯胶 (2 0 % ) ;芯材占壁材的添加量为 2 % ,喷雾干燥的进料流量为 5 0mL/min ;进风温度为 2 0 0℃ ,出风温度为 80℃。 展开更多
关键词 微胶囊 亚硝基亚铁血色原 色素 肉制品 喷雾干燥法 nfh
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3种骨疾病患者甲襞微循环的临床研究 被引量:6
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作者 王绍萍 刘玉芳 +2 位作者 青雪梅 张连喜 张德桂 《黑龙江医学》 2002年第10期749-750,共2页
目的 观察股骨头坏死、退行性骨关节炎和骨质疏松患者甲襞微循环的变化情况。方法 利用微循环仪进行甲襞微循环状况检测 ,并用田氏积分法进行积分。结果  3种骨病患者的甲襞微循环都不同程度的发生改变 ,尤以股骨头坏死和退行性骨关... 目的 观察股骨头坏死、退行性骨关节炎和骨质疏松患者甲襞微循环的变化情况。方法 利用微循环仪进行甲襞微循环状况检测 ,并用田氏积分法进行积分。结果  3种骨病患者的甲襞微循环都不同程度的发生改变 ,尤以股骨头坏死和退行性骨关节炎最为严重。结论 骨疾病患者可以发生不同程度的微循环改变 ,这种改变可能是其发病机制之一。 展开更多
关键词 甲襞微循环 股骨头坏死 退行性骨关节炎 骨质疏松 nfh OA OP
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紫外分光光度法测定盐酸奈福泮-β-环糊精包合物的含量 被引量:7
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作者 关皓月 张纯 顾伟锋 《药学实践杂志》 CAS 2008年第4期291-293,共3页
目的:建立测定盐酸奈福泮-β-环糊精包合物中盐酸奈福泮含量的方法。方法:采用紫外分光光度法测定含量,测定波长为267 nm。用乙酸乙酯洗脱未包封的盐酸奈福泮,测定被包封的盐酸奈福泮含量及包封率。结果:盐酸奈福泮检测浓度在0.01~0.4 ... 目的:建立测定盐酸奈福泮-β-环糊精包合物中盐酸奈福泮含量的方法。方法:采用紫外分光光度法测定含量,测定波长为267 nm。用乙酸乙酯洗脱未包封的盐酸奈福泮,测定被包封的盐酸奈福泮含量及包封率。结果:盐酸奈福泮检测浓度在0.01~0.4 mg/mL范围内线性关系良好(r=0.9995,n=9);日内RSD =0.17%(n=5),日间RSD=1.82%(n=5);平均加样回收率为100.39%(n=9);测得3批样品的包封率分别为73.28%、70.37%、74.97%。结论:该方法操作简便、结果准确,适用于盐酸奈福泮-β-环糊精包合物中盐酸奈福泮含量的测定。 展开更多
关键词 紫外分光光度法 盐酸奈福-β-环糊精包合物 盐酸奈福泮 含量测定
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Knowledge,attitude,beliefs and practices in HIV/AIDS in India:identifying the gender and rural-urban differences 被引量:1
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作者 Indrajit Hazarika 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2010年第10期821-827,共7页
Objective:To promote the use of preventive measures and raise awareness regarding HIV/AIDS in India.Methods:Data from the population-based NFHS-3 survey 2005-06 was used.In this study,information collected on 87 961 w... Objective:To promote the use of preventive measures and raise awareness regarding HIV/AIDS in India.Methods:Data from the population-based NFHS-3 survey 2005-06 was used.In this study,information collected on 87 961 women aged 15-49 years and 44 717 men aged 15-54 years was used in the final analysis.The data collected was stratified by gender and place of residence. Analyses of the variables related to the outcomes i.e.knowledge,attitude,belief and practices, was conducted using Chi-square test to calculate significant differences among proportions of categorical variables.Results:We found that knowledge of HIV transmission and prevention was low among women and rural residents.Most of the respondents had a non-discriminatory attitude towards HIV positives and majority agreed that children should be educated on HIV/ AIDS.The use of condoms and proportion of respondents who had undergone HIV testing was found to be significantly low.We found a significant gap in the beliefs regarding ways to avoid HIV.Conclusions:There are significant gender and urban-rural differentials in India in terms of knowledge,attitude,beliefs and practices in HIV/AIDS.Information dissemination in India should be designed in a way that not only raises the level of awareness but also result in behavioral change. 展开更多
关键词 HIV/AIDS National AIDS Control Program nfhS-3 INDIA
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亚硝基血红蛋白合成研究 被引量:1
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作者 黄群 马美湖 +1 位作者 麻成金 欧阳玉祝 《肉类工业》 2007年第1期28-31,共4页
为获得猪血血红蛋白与亚硝酸钠反应合成亚硝基血红蛋白(HbNO)的最佳工艺条件,在单因素试验之上进行了正交试验。结果表明,最佳合成工艺参数为:pH值6.20,温度80℃,反应时间20min,亚硝酸钠添加量2.1%。产物进行紫外-可见分光光度扫描,鉴... 为获得猪血血红蛋白与亚硝酸钠反应合成亚硝基血红蛋白(HbNO)的最佳工艺条件,在单因素试验之上进行了正交试验。结果表明,最佳合成工艺参数为:pH值6.20,温度80℃,反应时间20min,亚硝酸钠添加量2.1%。产物进行紫外-可见分光光度扫描,鉴定其结构为亚硝基亚铁血色原色素(NFH),然后进行真空冷冻干燥。 展开更多
关键词 血红蛋白 亚硝酸钠 亚硝基血红蛋白 合成 亚硝基亚铁血色原
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Factors Associated with Under-Five Mortality: A Comparison between Empowered Action Group (EAG) and Non-EAG States of India
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作者 Sarvesh Kumar Damodar Sahu Nishanka Chauhan 《Health》 2021年第11期1190-1205,共16页
Background: In India under-five mortality (U5MR) has declined by 71% from 126 to 37 deaths per 1000 live births between 1990 and 2018. The Empowered Action Group (EAG) states accounts for 74% of the under-five deaths ... Background: In India under-five mortality (U5MR) has declined by 71% from 126 to 37 deaths per 1000 live births between 1990 and 2018. The Empowered Action Group (EAG) states accounts for 74% of the under-five deaths as compared to 26% among Non-EAG states. Method: National Family Health Survey round fourth (NFHS-4), 2015-16 was used for this study. A life table method and Cox Proportional Hazard (PH) model was used to examine the various factors associated with U5MR in EAG and Non-EAG states of India. Result: Overall, it was observed that U5MR is much higher in EAG compared to Non-EAG states. Absolute difference varies according to background characteristics. The highest difference was among mothers who had never breastfed (316 vs 150 U5MR per 1000 live births in EAG & Non-EAG states respectively). Factors—total children ever born to mother, household members, children never breastfed and size of the baby were found to be statistically significantly associated with under-five mortality after controlling for other factors in both EAG and Non-EAG states. Hazard of U5MR was two and half-times higher among birth order 4+ (AHR = 2.5, 95% CI = 1.8 - 3.3) compared to birth order ≤2 after controlling for other factors in EAG states. The risk of under-five mortality was found three times higher among mother having up to primary or no education (AHR = 2.9, 95% CI = 1.4 - 5.9) compared to mother having higher education in non-EAG states. Conclusion: The study revealed that both groups of states need health program interventions focused on high risk mothers, TT immunization and promoting basic health services and breastfeeding practices for the reduction U5MR. 展开更多
关键词 Cox PH EAG Non-EAG nfhS U5MR
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Socioeconomic Factors of Full Immunisation Coverage in India
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作者 Suresh Sharma 《World Journal of Vaccines》 2013年第3期102-110,共9页
The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that substantial portions of the text came from other published papers. The scientific com... The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that substantial portions of the text came from other published papers. The scientific community takes a very strong view on this matter, and the Health treats all unethical behavior such as plagiarism seriously. This paper published in Vol.3 No. 3,102-110?pages, 2013, has been removed from this site. 展开更多
关键词 IMMUNISATION ANC DPT nfhS
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Bioinformatics Analysis of the Association between Ewing’s Sarcoma and Tuberculosis Comorbidity
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作者 Jun Huang Qi Lu +3 位作者 Junxiu Zhou Wenzhao Zhang Chongyao Xu Guiyun Wei 《Journal of Biosciences and Medicines》 2024年第8期128-140,共13页
Objective To screen and analyze the differentially expressed genes of Ewing’s sarcoma (ES) and Tuberculosis (TB) by bioinformatics. Methods GEO gene chip public database in NCBI was used for data retrieval, and chip ... Objective To screen and analyze the differentially expressed genes of Ewing’s sarcoma (ES) and Tuberculosis (TB) by bioinformatics. Methods GEO gene chip public database in NCBI was used for data retrieval, and chip data GSE17674 and GSE57736 were selected as analysis objects. The R language limma toolkit was used to screen DEmRNAs, and the data were standardized, and the common differentially expressed genes were screened by Venn diagram. The GO function and KEGG pathway enrichment of common differentially expressed genes were analyzed by using the R cluster Profiler package. String database was selected for PPI analysis, and the results were imported into Cytoscape software to obtain PPI interaction map, core module and Hub gene. Import Hub gene into BioGPS database. Results: A total of 3 Hub genes were screened, namely CD3D, LCK, KLRB1;The genes were imported into BioGPS database to obtain the specific genes. Conclusion The selected differential genes and related signaling pathways are helpful to understand the molecular mechanism of ES and TB, and can provide the basis for early diagnosis of ES complicated with TB. It also provides new ideas for clinical treatment and diagnosis. 展开更多
关键词 ES nfh Bioinformatics Analysis Differential Gene Signal Path
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用于35kHz-90kHz应用的IGBT
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《电子产品世界》 2004年第05B期16-16,共1页
关键词 Powerex nfh系列 IGBT CSTBT芯片 关断开关损耗 封装 高频 载流子储存沟槽栅双极晶体管
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世界护卫舰舰载直升机研制项目综述
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作者 潘超美 《国外舰船工程》 1996年第6期38-41,8,共5页
众所周知,舰载直升机的主要用途是离母舰较远距离进行搜潜、反潜。自海湾战争开始,舰载直升机就开始从单一的反潜任务向多功能转变。世界上很多国家都在考察舰载直升机的换代,直升机公司都在努力推销自己的产品。北约4国联合设计生... 众所周知,舰载直升机的主要用途是离母舰较远距离进行搜潜、反潜。自海湾战争开始,舰载直升机就开始从单一的反潜任务向多功能转变。世界上很多国家都在考察舰载直升机的换代,直升机公司都在努力推销自己的产品。北约4国联合设计生产的NFH90军用直升机是当今世界上最先进的舰载直升机之一,但在激烈的市场竞争中有占一席之地吗? 展开更多
关键词 护卫舰 舰载直升机 nfh90项目 舰载机
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电子束光刻-近场全息法制作平焦场光栅的误差分析及补偿方法 被引量:2
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作者 林达奎 陈火耀 +1 位作者 刘正坤 刘颖 《光学学报》 EI CAS CSCD 北大核心 2018年第5期40-50,共11页
在激光等离子体诊断等领域中,以平焦场光栅为核心器件的软X射线光谱仪发挥着重要作用。利用电子束光刻-近场全息法制作的平焦场光栅兼具电子束光刻线密度变化灵活,以及全息光栅低杂散光、抑制高次谐波等的特点。采用光线追迹方法分析电... 在激光等离子体诊断等领域中,以平焦场光栅为核心器件的软X射线光谱仪发挥着重要作用。利用电子束光刻-近场全息法制作的平焦场光栅兼具电子束光刻线密度变化灵活,以及全息光栅低杂散光、抑制高次谐波等的特点。采用光线追迹方法分析电子束光刻-近场全息法制作平焦场光栅的主要制作误差对其光谱成像特性的影响。结果表明:电子束光刻制备熔石英掩模和近场全息图形转移过程的制作误差均会导致谱线展宽;以目前应用较多的软X射线平焦场光栅(中心线密度为2400line/mm、工作波段在0.8~6.0nm)为例,当熔石英掩模在光栅矢量方向的长度为50mm时,电子束光刻分区数目应保证在1500以上;熔石英掩模线密度偏差引入的谱线展宽可以通过调整近场全息制作参数来消除;确定了近场全息中的两个主要影响因素——熔石英掩模与光栅基底的间距和夹角;近场全息中各误差因素之间有相互补偿的效果,故除了尽可能消除制备过程中的每一种制作误差外,也可以通过优化不同误差之间的分配来降低制备误差。本研究对优化电子束直写掩模策略、降低掩模制作难度、设计和调整近场全息光路有重要帮助。 展开更多
关键词 光栅 电子束光刻 近场全息 平焦场光栅 谱线宽度
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