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International Trade of Agricultural Products in the Context of "B&R" Initiative 被引量:1
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作者 Lijing WU Shuhua XIE 《Asian Agricultural Research》 2016年第3期5-7,共3页
At present,China's agricultural product trade is facing the development dilemma. The trade deficit is expanding,market and product structure is irrational,and the Chinese agriculture products often encounter trade... At present,China's agricultural product trade is facing the development dilemma. The trade deficit is expanding,market and product structure is irrational,and the Chinese agriculture products often encounter trade barriers. " B&R" initiative provides a rare opportunity for the development of agricultural products in China. It is necessary to seize this opportunity to change idea and innovate upon mechanism so as to increase the added value of exported agricultural products through various channels. There is also a need to develop electronic commerce,and make full use of interconnectivity and trade facilitation in " B&R" initiative to develop the international trade of agricultural products. 展开更多
关键词 " b&r" initiative AGrICULTUrAL products INTErNATIONAL TrADE
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Can Culture Lead to Export?Empirical Data on the Belt and Road Initiative 被引量:1
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作者 Xie Mengjun Li Liang Yang Xiaonan 《Contemporary Social Sciences》 2017年第1期6-17,共12页
The B&R Initiative is a modernized and specific manifestation of China's"going global"development strategy. It undertakes the historic mission of promoting communication and exchange between cultures... The B&R Initiative is a modernized and specific manifestation of China's"going global"development strategy. It undertakes the historic mission of promoting communication and exchange between cultures and nations, but also has a positive role in the development of international economy and trade relations. As a messenger of the essence of Chinese culture, Confucius Institutes have a positive impact on the development of Asian and world civilizations. Using Difference-in-Difference estimation methods to study the statistical data from the countries along the B&R routes, this paper examines the relationship between cultural and commodity outputs and comes to the following conclusions: Cultural output is an important factor in increasing commodity exports; Confucius Institutes help increase China's exports to the countries along the B&R routes; and the growth in cultural exports shows regional differences, hysteresis, and fluctuations. As China's cultural outputs are still at an immature stage, their promotional effects on exports are unstable. In the future, China should further standardize its management and operational systems and accelerate the Confucius Institutes' content-based development to enhance the effects of cultural outputs in increasing exports, boosting China's soft power. 展开更多
关键词 Confucius Institute EXPOrT b&r initiative DIFFErENCE-IN-DIFFErENCE
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The Perception and Reaction of Indonesia to the Belt and Road Initiative and Suggestions for China's Response
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作者 Pan Yue Chang Xiaozhu 《Contemporary International Relations》 2017年第4期36-47,共12页
Participation, support and understanding of countries along the Belt and Road are requisites for promoting and implementing this major initiative. Indonesia, a major ASEAN economy, is crucial but Indonesia has a limit... Participation, support and understanding of countries along the Belt and Road are requisites for promoting and implementing this major initiative. Indonesia, a major ASEAN economy, is crucial but Indonesia has a limited perception of the B&R initiative. Although its government welcomes it and the ruling coalition cooperates positively, parts of the military and opposition are skeptical of China's intent. The B&R initiative is well-received among the Indonesian Chinese group, while Indonesian academic circles remain cautious and somewhat critical. From a Chinese viewpoint, easing negative or hostile emotions appropriately would be well-timed. China should settle the Natuna issue, adjust its publicity in Indonesia, use diplomacy, and promote Sino-Indonesia cultural exchange and communications. Chinese enterprises should focus on project quality and uphold social responsibilities. Short-term goals are reducing Indonesia's opposition and obstruction of B&R, while long-term goals are enhancing the recognition and likeability of the Initiative's worthwhile plans. 展开更多
关键词 belt and road initiative br Indonesia China-Indonesiarelations
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猴痘病毒B20R蛋白原核表达及其多克隆抗体的制备 被引量:1
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作者 杨领弟 李小梅 +3 位作者 芦晓鸥 彭棋 孔令保 王宇 《南方农业学报》 CAS CSCD 北大核心 2024年第1期217-225,共9页
【目的】构建猴痘病毒B20R蛋白原核表达系统,并评价原核表达获得的融合蛋白免疫原性,为后续的猴痘病毒检测及新型治疗方法开发提供技术支撑。【方法】参照GenBank已公布的猴痘病毒基因组序列,按照大肠杆菌密码子偏好性对B20R基因DNA序... 【目的】构建猴痘病毒B20R蛋白原核表达系统,并评价原核表达获得的融合蛋白免疫原性,为后续的猴痘病毒检测及新型治疗方法开发提供技术支撑。【方法】参照GenBank已公布的猴痘病毒基因组序列,按照大肠杆菌密码子偏好性对B20R基因DNA序列进行优化,人工合成B20R基因并将其分别克隆至表达载体pET-28a和pET-32a以构建原核表达载体;以构建的2种原核表达载体分别转化大肠杆菌BL21感受态细胞,经IPTG诱导表达后使用SDSPAGE和Western blotting检测融合蛋白B20R的表达情况。通过控制变量法优化融合蛋白B20R的诱导表达条件,使用Ni柱亲和层析进行纯化;以纯化的融合蛋白B20R经腹腔注射免疫昆明小鼠,定期采集昆明小鼠血样,采用ELISA检测血清抗体效价。【结果】将B20R基因克隆至表达载体pET-32a能成功构建原核表达载体pET-32a-B20R,经IPTG诱导后,可在大肠杆菌BL21感受态细胞中表达出融合蛋白B20R,且主要以不可溶的包涵体形式进行表达。融合蛋白B20R最佳诱导表达条件为37℃下以0.6 mmol/L IPTG诱导12 h,Ni柱亲和层析纯化的最佳咪唑洗脱浓度为40 mmol/L。以纯化的融合蛋白B20R接种免疫昆明小鼠,可在短时间内引起昆明小鼠产生强烈的体液免疫,且至免疫第42 d仍然维持较高的抗体水平,抗体效价高达1∶409600。【结论】构建的猴痘病毒B20R蛋白原核表达载体可在大肠杆菌BL21细胞中以包涵体形式成功表达出融合蛋白B20R,且融合蛋白B20R具有良好的免疫原性,可在短时间内引起昆明小鼠产生强烈的体液免疫。 展开更多
关键词 猴痘病毒 b20r蛋白 原核表达 免疫原性 抗体效价
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结合YC_(b)C_(r)和主成分分析的遥感阴影检测方法
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作者 谢文韬 王书涵 +3 位作者 雷宇斌 龙城仕 刘华光 刘正才 《地理空间信息》 2024年第3期20-23,共4页
针对阴影提取过程中水体等地物会影响阴影检测精度的问题,根据高分辨率遥感影像在YC_(b)C_(r)空间阴影区域的性质,提出了一种顾及水体的结合YC_(b)C_(r)空间与主成分分析(PCA)的遥感阴影检测方法。首先需判断是否有水体,若没有,则利用PC... 针对阴影提取过程中水体等地物会影响阴影检测精度的问题,根据高分辨率遥感影像在YC_(b)C_(r)空间阴影区域的性质,提出了一种顾及水体的结合YC_(b)C_(r)空间与主成分分析(PCA)的遥感阴影检测方法。首先需判断是否有水体,若没有,则利用PCA与经过伽马校正的YC_(b)C_(r)空间变换相结合的阴影检测指数(SII)进行阴影检测;若有,则在此基础上利用水体指数NDWI对融合影像进行水体检测以及小斑块去除后处理,去除水体提取阴影。实验结果表明,该方法检测的正确率高于90%,比NDUI、C1C2C3、SI阴影检测方法更准确,同时能去除水体等对阴影的影响,具有更好的普适性。 展开更多
关键词 遥感影像 PCA变换 YC_(b)C_(r) 阴影检测
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IgG受体FcγRⅡB调节实验性自身免疫性脑脊髓炎致神经元损伤及Th17/Treg免疫平衡的作用研究 被引量:1
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作者 肖林婷 周少珑 +3 位作者 周辉 蔡奕秋 陈薇 李鹏 《中国免疫学杂志》 CAS CSCD 北大核心 2024年第5期1030-1035,1041,共7页
目的:探究IgG受体FcγRⅡB对实验性自身免疫性脑脊髓炎(EAE)模型小鼠神经元损伤与Th17/Treg失衡的作用。方法:C57BL/6小鼠随机分组为对照组、EAE组、FcγRⅡB组、EAE+FcγRⅡB组,每组15只,皮下注射MOG35-55肽诱导EAE模型,并给予FcγRⅡ... 目的:探究IgG受体FcγRⅡB对实验性自身免疫性脑脊髓炎(EAE)模型小鼠神经元损伤与Th17/Treg失衡的作用。方法:C57BL/6小鼠随机分组为对照组、EAE组、FcγRⅡB组、EAE+FcγRⅡB组,每组15只,皮下注射MOG35-55肽诱导EAE模型,并给予FcγRⅡB慢病毒液处理;造模后每日称量小鼠体质量,进行神经功能评分,持续30 d;30 d后处死小鼠,HE染色观察脑组织病理形态学变化,LFB染色评估脊髓髓鞘结构变化,免疫荧光染色检测脊髓大脑皮质神经元核抗原(NeuN)和Caspase-3表达,TUNEL染色检测神经元细胞凋亡,ELISA检测血清IL-6、IL-17、IL-10及TGF-β水平,流式细胞术分析脾脏Th17、Treg细胞比例分布,Western blot测定脊髓组织维甲酸相关孤儿受体γt(RORγt)与Forkhead家族转录因子3(Foxp3)蛋白表达。结果:与对照组比较,EAE组小鼠体质量下降,神经功能评分升高,脑组织内炎症细胞浸润明显,脊髓中出现脱髓鞘迹象,NeuN荧光表达强度减弱而Caspase-3荧光表达强度增强,TUNEL阳性着色细胞多,细胞凋亡数增加,血清中IL-6和IL-17水平升高,IL-10和TGF-β水平降低,脾脏内Th17细胞比例升高,Treg比例降低,脊髓组织内RORγt蛋白表达上调,Foxp3蛋白表达下调(P<0.05);与EAE组比较,EAE+FcγRⅡB组小鼠体质量增加,神经功能评分降低,脑组织内炎症细胞浸润减轻,脊髓脱髓鞘现象得到改善,NeuN荧光表达强度增强,Caspase-3荧光表达强度减弱,TUNEL阳性着色细胞较少,细胞凋亡数减少,血清中IL-6和IL-17水平降低,而IL-10和TGF-β水平升高,同时脾脏内Th17细胞比例降低,Treg比例升高,脊髓组织内RORγt蛋白表达下调而Foxp3蛋白表达上调(P<0.05)。结论:FcγRⅡB对EAE小鼠具有神经保护作用,可减轻其脑组织炎症细胞浸润及脱髓鞘现象,作用机制可能与调节细胞因子水平及Th17/Treg细胞免疫平衡有关。 展开更多
关键词 实验性自身免疫性脑脊髓炎 Fcγrb 神经元损伤 TH17/TrEG 免疫
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T29C genotype polymorphism of estrogen receptor alpha is associated with initial response to interferon-alpha therapy in chronic hepatitis B patients 被引量:4
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作者 Zhang, Ting-Ting Zhang, Zhen-Hua +3 位作者 Gao, Yu-Feng Zhang, Ya-Fei Yang, Dong-Liang Li, Xu 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2010年第3期275-279,共5页
BACKGROUND: Virological clearance, delayed progression to cirrhosis or liver cancer, and increased survival are the long-term goals of antiviral therapy in chronic hepatitis B patients. Identification of host factors ... BACKGROUND: Virological clearance, delayed progression to cirrhosis or liver cancer, and increased survival are the long-term goals of antiviral therapy in chronic hepatitis B patients. Identification of host factors correlated with therapeutic response may contribute greatly to individual treatment. This study aimed at investigating whether T29C genotype polymorphism of estrogen receptor alpha (ESR1) is associated with the initial response to interferon-alpha (IFN-alpha) therapy in chronic hepatitis B patients. METHODS: The initial responses of 100 patients to IFN-alpha therapy were evaluated and compared by classifying them into three groups according to T29C genotype polymorphism of ESR1: T/T, TIC, and C/C genotype groups. Polymerase chain reaction-restriction fragment length polymorphism was used to analyze the genotype polymorphism in T29C. RESULTS: The frequency of initially combined response was markedly higher in both the T/T and TIC groups than in the C/C group (Z=10.326, P=0.006 and Z=26.247, P=0.000, respectively). In addition, the initial virological response was higher in the T/T and T/C groups than the C/C group (chi(2)=5.674, P=0.017 and chi(2)=4.980, P=0.026, respectively). In 78 initially HBeAg-positive patients, however, the frequency of initial e-antigen disappearance or seroconversion among the T/T, T/C, and C/C genotype groups was 34.15%, 27.78% and 15.79%, respectively, which were not significantly different. CONCLUSION. The T29C genotype polymorphism of ESR1 is associated with the initial response to IFN-alpha in patients with chronic hepatitis B, and might be a significant marker for predicting the initial response to IFN-alpha, at least in this study population. (Hepatobiliary Pancreat Dis Int 2010; 9: 275-279) 展开更多
关键词 estrogen receptor POLYMOrPHISM chronic hepatitis b initial response INTErFErON-ALPHA
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老年弥漫大B细胞淋巴瘤患者“R+化疗”预后相关因素分析
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作者 林方珩 《中国医药指南》 2024年第2期85-87,共3页
目的分析老年弥漫大B细胞性淋巴瘤(DLBCL)患者行“R+化疗”治疗6周期后临床效果的相关因素。方法该回顾性分析纳入我院2019年1月至2022年1月收治的118例老年DLBCL患者的临床资料,通过单因素和多因素逻辑回归分析与6周期“R+化疗”治疗... 目的分析老年弥漫大B细胞性淋巴瘤(DLBCL)患者行“R+化疗”治疗6周期后临床效果的相关因素。方法该回顾性分析纳入我院2019年1月至2022年1月收治的118例老年DLBCL患者的临床资料,通过单因素和多因素逻辑回归分析与6周期“R+化疗”治疗预后相关的血液学指标。结果外周血淋巴细胞计数/单核细胞计数(LMR)下降、EB病毒感染、血β_(2)微球蛋白升高是老年DLBCL患者6周期“R+化疗”后良好预后的独立危险因素。结论LMR、EB病毒感染、血β2微球蛋白水平与老年DLBCL患者“R+化疗”治疗效果相关。 展开更多
关键词 老年 弥漫大b细胞性淋巴瘤 r+化疗”治疗 Eb病毒
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Exploring the efficacy of(R)-PFI-2 hydrochloride in mitigating noise-induced hearing loss by targeting NLRP3 inflammasome and NF-κB pathway to reduce inner ear inflammation
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作者 Dawei Ren Xuemin Chen +9 位作者 Hongdong Liu Menghua Li Liting Zheng Pan Yong Mohe Huang Xi Shi Yice Xu Shujin Chen Yan Zhang Wei Zhu 《Journal of Otology》 CAS CSCD 2024年第4期200-206,共7页
Noise-induced hearing loss(NIHL)is primarily driven by inflammatory processes within the cochlea,where noise exposure triggers the activation of the NOD-like receptor protein 3(NLRP3)inflammasome,leading to an inflamm... Noise-induced hearing loss(NIHL)is primarily driven by inflammatory processes within the cochlea,where noise exposure triggers the activation of the NOD-like receptor protein 3(NLRP3)inflammasome,leading to an inflammatory cascade.The interaction between increased NLRP3 expression and NF-κB activity can further amplify cochlear inflammation.Our findings reveal that(R)-PFI-2 hydrochloride,a selective inhibitor of the SETD7 enzyme,effectively inhibits the activation of the cochlear NF-κB pathway,suppresses the release of proinflammatory factors,and prevents inflammasome assembly.This intervention disrupts the perpetuating cycle of inflammation,thereby alleviating damage to cochlear hair cells attributed to acoustic trauma.Consequently,(R)-PFI-2 hydrochloride emerges as a promising pharmacological candidate for NIHL,targeting and moderating the excessive immune and inflammatory responses implicated in the pathology of hearing loss. 展开更多
关键词 NIHL (r)-PFI-2 hydrochloride NLrP3 NF-κb SETD7
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采用B18R065取向硅钢片的配电变压器振动与噪声数值计算
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作者 吴晓文 肖威 +2 位作者 孙静玲 曹浩 周兵 《海军工程大学学报》 CAS 北大核心 2024年第1期41-48,共8页
振动与噪声是新型配电变压器设计与研制过程中必须关注的关键问题。为此,首先分别测量了B18R065牌号硅钢片的磁滞回线与磁致伸缩曲线,采用有限元方法分析了空载条件下配电变压器铁心磁场分布与变化规律,据此计算了不同时刻铁心磁致伸缩... 振动与噪声是新型配电变压器设计与研制过程中必须关注的关键问题。为此,首先分别测量了B18R065牌号硅钢片的磁滞回线与磁致伸缩曲线,采用有限元方法分析了空载条件下配电变压器铁心磁场分布与变化规律,据此计算了不同时刻铁心磁致伸缩应变;然后,基于热应力模拟方法,将磁致伸缩应变等效为温度载荷输入三维瞬态机械分析模型,计算出配电变压器铁心、油箱的振动位移分布及其随时间的变化规律;再次,将位移计算结果作为激励源,建立了配电变压器三维声场谐分析数值模型,对配电变压器周围声场进行仿真分析;最后,设计并研制了采用B18R065新型牌号硅钢片的10 kV三相油浸式配电变压器原型,并在半消声室内进行了噪声测试试验,验证了配电变压器声场数值计算结果的有效性。结果表明:配电变压器原型空载噪声不超过42.0 dB(A)。 展开更多
关键词 配电变压器 磁致伸缩 热应力模拟 有限元 振动与噪声 b18r065
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R-CHOP治疗与R-DAEPOCH方案治疗弥漫大B细胞淋巴瘤的近期疗效和毒副作用比较
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作者 徐燕 叶利锋 高鳌 《当代医学》 2024年第12期171-174,共4页
目的探讨R-CHOP与R-DAEPOCH方案治疗弥漫性大B细胞淋巴瘤(DLBCL)的近期疗效和毒副作用。方法选取2016年1月至2021年1月广东省人民医院赣州医院收治的62例DLBCL患者作为研究对象,按照随机数字表法分为观察组与对照组,各31例。观察组给予R... 目的探讨R-CHOP与R-DAEPOCH方案治疗弥漫性大B细胞淋巴瘤(DLBCL)的近期疗效和毒副作用。方法选取2016年1月至2021年1月广东省人民医院赣州医院收治的62例DLBCL患者作为研究对象,按照随机数字表法分为观察组与对照组,各31例。观察组给予R-DAEPOCH方案治疗,对照组给予R-CHOP方案治疗,比较两组临床疗效、无进展生存期(PFS)、毒副作用发生情况、治疗前后外周血T淋巴细胞(CD3^(+)、CD4^(+)、CD4^(+)/CD8^(+))。结果两组治疗总有效率(ORR)比较差异无统计学意义;观察组4、5、6、9、10、11、12月PFS生存率均高于对照组,差异有统计学意义(P<0.05);两组肝毒性、神经毒性、恶心呕吐发生率比较差异无统计学意义;治疗后,两组CD3^(+)、CD4^(+)水平及CD4^(+)/CD8^(+)与治疗前比较差异无统计学意义,但观察组低于对照组,差异有统计学意义(P<0.05)。结论DLBCL患者治疗中应用R-DAEPOCH方案与R-CHOP方案均可取得良好疗效,R-DAEPOCH方案虽然在保证疗效的同时可在一定程度上延长患者生存时间,然而对免疫功能负面影响相比R-CHOP方案更加明显,可为临床治疗提供一定参考依据。 展开更多
关键词 r-CHOP r-DAEPOCH 弥漫大b细胞淋巴瘤 毒副作用
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IL-18、IL-18BP、IL-18R在特应性皮炎患者外周血B淋巴细胞及单核细胞中的表达
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作者 李蕙彤 任鲁宁 +2 位作者 王菲 杨冬梅 杜红阳 《中国医科大学学报》 CAS 北大核心 2024年第9期782-787,共6页
目的探讨特应性皮炎(AD)患者外周血B淋巴细胞及单核细胞中白细胞介素(IL)-18、IL-18BP和IL-18R的表达。方法收集28例AD患者和21例健康对照者外周静脉血,分别用大籽蒿过敏原提取物、尘螨过敏原提取物或梧桐花粉过敏原提取物刺激,采用流... 目的探讨特应性皮炎(AD)患者外周血B淋巴细胞及单核细胞中白细胞介素(IL)-18、IL-18BP和IL-18R的表达。方法收集28例AD患者和21例健康对照者外周静脉血,分别用大籽蒿过敏原提取物、尘螨过敏原提取物或梧桐花粉过敏原提取物刺激,采用流式细胞术检测B淋巴细胞及单核细胞中IL-18^(+)、IL-18BP^(+)和IL-18R^(+)的表达。结果与健康对照者比较,AD患者静息状态下B淋巴细胞群中IL-18^(+)、IL-18BP^(+)、IL-18R^(+)细胞比例分别升高2.01、10.35、20.85倍,单核细胞群中IL-18^(+)和IL-18BP^(+)细胞比例分别升高5.51和41.88倍,IL-18R^(+)细胞比例无明显变化。结论B淋巴细胞及单核细胞中IL-18、IL-18BP和IL-18R可能在AD中起重要作用,可能是治疗AD的潜在靶点。 展开更多
关键词 特应性皮炎 b淋巴细胞 单核细胞 白细胞介素-18 白细胞介素-18bP 白细胞介素-18r
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Seroprevalence of Human Immunodeficiency Virus and Hepatitis B in Blood Donors at the N’Zérékoré Regional Blood Transfusion Centre in Guinea
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作者 Alimou Camara Ernest Thea +12 位作者 Ives Nyankoye Haba Yamoussa Youla Ibrahima Sory Diallo Mariama Sadio Diallo Djiba Kaba Jacob Camara Moussa Condé Barré Soropogui Kaba Kourouma Thierno Mamadou Tounkara Babacar Mbengue Abdoulaye Touré Sanaba Boumbaly 《Open Journal of Immunology》 2024年第2期33-45,共13页
Blood transfusion saves lives and reduces morbidity and mortality for a large number of diseases and clinical conditions, but it is not without danger. The aim of this study was to determine the seroprevalence of HIV ... Blood transfusion saves lives and reduces morbidity and mortality for a large number of diseases and clinical conditions, but it is not without danger. The aim of this study was to determine the seroprevalence of HIV and hepatitis B in blood donors received at the regional Blood Transfusion Centre of N’Zérékoré (Guinea). This was a 5-year retrospective analytical study. We included records of blood donors aged 18 to 60 years admitted to the N’Zérékoré Regional Blood Transfusion Centre for blood donation from January 2016 to December 2020. We performed a descriptive analysis followed by Chi-2 or Fish-er-exact tests and the Student or Wilcoxon test, followed by multivariate logistic regression. In this study, donor age ranged from 18 - 60 years, with a pre-dominance of donors aged 25 - 34 (44.2%). Male donors were the most represented in our study (79.0% versus 21.0% female). More than half of the donors were blood group O (55.6%). We observed a seroprevalence of 3.6% for HIV, 13.4% for HBsAg and 0.2% for co-infection. In our series, age 25 - 34 (OR = 1.89 and P = 0.001) and 35 - 44 for HIV (OR = 2.01 and P = 0.001), HBsAgserostatus (OR = 3.04 and P = 0.001) and blood donation history (OR of 3.04 and P = 0.001) were factors associated with HIV positivity (P < 0.05). In our study, HIV serostatus (OR = 3.04 and P = 0.001) and blood donation history (OR = 0.01 and P = 0.001) were factors associated with HBsAgseropositivity. We reported a high prevalence of HIV and HBsAg. Sex, serological status and blood donation history were associated factors. 展开更多
关键词 SErOPrEVALENCE HIV Hepatitis b blood Donors N’Zérékoré GUINEA
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Experimental Investigation of Two-Dimensional Shock Initiation Process of Cast Composition B
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作者 黄风雷 胡湘渝 《Journal of Beijing Institute of Technology》 EI CAS 2004年第3期305-307,共3页
A two-streak high-speed photography measuring system is designed, which can successfully record the reactive shock front and the reaction profile within the run distance of shock initiation under two-dimensional shock... A two-streak high-speed photography measuring system is designed, which can successfully record the reactive shock front and the reaction profile within the run distance of shock initiation under two-dimensional shock initiation. The strong reaction delay time and the shape of reaction shock front are determined in the cast composition B (RDX/TNT/60/40). A low level reaction zone has been found and analyzed.. 展开更多
关键词 cast composition b shock initiation two-streak high-speed photography low level reaction zone
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Low Level of Hepatitis B Surface Antigen Screening in a Tertiary Health Facility in Nigeria 2000-2014: Imperative for Provider Initiated Testing and Counselling for Hepatitis B Virus?
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作者 Elon Warnow Isaac Iliya Jalo +5 位作者 Yaya Saidu Alkali Ayomikun Ajani Joshua Difa Abubakar John Tunde Aremu Christianah Oluwaseun Oyeniyi Mohammed Hassan Danlami 《Open Journal of Epidemiology》 2020年第3期251-264,共14页
<strong>Introduction:</strong> Viral hepatitis is a major public health challenge that requires an urgent response. Reducing mortality requires major scale-up in prevention, testing and treatment access;co... <strong>Introduction:</strong> Viral hepatitis is a major public health challenge that requires an urgent response. Reducing mortality requires major scale-up in prevention, testing and treatment access;coverage in HBV vaccination, testing and treatment is low and must accelerate massively to achieve the 2030 targets. Less than 1% of HBV-infected individuals are diagnosed in Sub-Sahara Africa, despite the availability of rapid tests with good diagnostic accuracy. <strong>Materials and Methods:</strong> This was retrospective cross sectional study conducted in Federal Teaching Hospital Gombe, in North East Nigeria. All children and adults who presented to the out-patient departments, and those that were admitted irrespective of their HIV and or Hepatitis C virus status and had Hepatitis B and/or Hepatitis B envelope antigen test were conducted between 2000 to 2015. All children and adults were tested using the Hospital standard for Hepatitis B surface antigen test strip. <strong>Results:</strong> Between 2000 and 2014, 739,456 children and adults were admitted and reviewed in the outpatient units of the Federal Teaching Hospital Gombe;there were 685,552 adults and 53,904 children. Children constituted 7.3% (53,904/739,456) of admissions and outpatient consultations. 2.8% (210/7570), 3.3% (773/23,783), 3.6% (1145/32,142), 5.2% (1694/33,043), 3.3% (986/29,216), 1.9% (661/3321), 0.1% (53/41,626), 0.2% (113/46,634), 2.6% (1418/54,423), 5.4% (3717/69,696), 3.7% (2332/62,086), 3.5% (3241/90,623), 3.2% (2881/89,398), 3.8% (2428/62,687), 2.8% (1835/63,208) of children and adults were tested for HBsAg in 2000, 2001, 20002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 respectively. 23,487 children and adults were tested for HBsAg with a cumulative testing rate of 3%. Overall 4465/23,487 children and adults were seropositive for HBsAg giving a cumulative prevalence of 19%. <strong>Conclusion:</strong> HBV screening in our health facility is very low. Massive scale up in awareness and HBV vaccination are required. Provider initiated testing and counseling for HBV in health facilities needs support for implementation in Health Facilities in Sub Saharan Africa. 展开更多
关键词 Hepatitis b TESTING Provider initiated Counseling and Testing Sub-Saharan Africa
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信迪利单抗联合DA-EPOCH-R方案治疗弥漫大B细胞淋巴瘤的效果分析
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作者 刘飒 《临床研究》 2024年第9期11-14,共4页
目的探究弥漫大B细胞淋巴瘤(DLBCL)联合应用环磷酰胺+表柔比星+依托泊苷+长春新碱+泼尼松+利妥昔单抗(DA-EPOCH-R)方案与信迪利单抗的具体效果。方法选取2020年1月至2023年12月南阳市中心医院肿瘤内科收入诊治的82例DLBCL病例,以治疗方... 目的探究弥漫大B细胞淋巴瘤(DLBCL)联合应用环磷酰胺+表柔比星+依托泊苷+长春新碱+泼尼松+利妥昔单抗(DA-EPOCH-R)方案与信迪利单抗的具体效果。方法选取2020年1月至2023年12月南阳市中心医院肿瘤内科收入诊治的82例DLBCL病例,以治疗方案的不同,将其分为研究组(n=41,信迪利单抗+DA-EPOCH-R方案),对照组(n=41,单纯应用DA-EPOCH-R方案),分析其疗效、血清标志物、免疫指标及并发症差异。结果研究组客观缓解率(ORR),疾病控制率(DCR)均高于对照组,差异均有统计学意义(P<0.05);治疗前,两组血清标志物、免疫指标比较,差异无统计学意义(P>0.05),治疗后,两组血清标志物、免疫指标指标均降低,且研究组低于对照组,差异均有统计学意义(P<0.05);治疗后,两组并发症发生率比较,差异无统计学意义(P>0.05)。结论DLBCL治疗期间,联合应用DA-EPOCH-R方案与信迪利单抗能够取得较为理想的临床疗效,改善血清标志物以及免疫指标,不会额外增加并发症发生率,具有临床应用意义。 展开更多
关键词 信迪利 DA-EPOCH-r方案 弥漫大b细胞淋巴瘤 疗效
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LONG-TERM EFFICACY AND IMMUNOLOGICAL MEMORY OF PLASMA-DERIVED HEPATITIS B VACCINE 11 YEARS AFTER INITIAL INOCULATION
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作者 王学良 徐慧文 庄贵华 《Academic Journal of Xi'an Jiaotong University》 2000年第2期122-125,共4页
关键词 Hbc HbV PLASMA-DErIVED HEPATITIS b VACCINE 11 YEArS AFTEr initiAL INOCULATION LONG-TErM EFFICACY AND IMMUNOLOGICAL MEMOrY OF
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The Dynamic Model of Customs' Initial Trust Formation Mechanism Analysis in B2C
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作者 WANG Jingbo Fu Yuanzhai 《International Journal of Technology Management》 2014年第8期40-42,共3页
It has been widely believed that trust is the basis for on-line trading by both academia and practice. The process of f initial trust formation is a dynamic and repeated process. In the electric business environment, ... It has been widely believed that trust is the basis for on-line trading by both academia and practice. The process of f initial trust formation is a dynamic and repeated process. In the electric business environment, this work chose to research the first phase of the process, which is initial trust. The Writer established dynamic model of initial trust formation biased on theory of planned behavior with other theories, such as TAM and social exchange theory, after micro-analyzing this formation mechanism from. in order to confirming effectiveness of the dynamic model, the writer adopted empirical study, from which writer got an order of. From the result of empirical study, we got the strength order of main factors that can influence the establishment of initial trust. 展开更多
关键词 TrUST initial Trust Electronic business b2C Trust Model Mechanism
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Correlation of the slope of the initial part of P-wave envelope,hypocenter depth and plate boundary
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作者 Chao Lian Xinqiang Chen +1 位作者 Yuyang Kong Yueqiang Qiao 《Geodesy and Geodynamics》 2018年第6期491-497,共7页
We investigated correlation of the slope of the initial part of P-wave envelope, hypocenter depth and plate boundaries by B-Δ method, which is used to determine epicentral distances in the Japan Meteorological Agency... We investigated correlation of the slope of the initial part of P-wave envelope, hypocenter depth and plate boundaries by B-Δ method, which is used to determine epicentral distances in the Japan Meteorological Agency and Japan Railway Company earthquake early warning(EEW) systems. The Tohoku region was chosen as the study region. 19,899 strong motion data for 265 events with magnitudes in the range from 5.0 to 7.6 from KiK-net(Kiban Kyoshin network) had been collected. The coefficient c to investigate is obtained from the linear relation between log B and log Δ. Compared to the hypocenter depth, the coefficients c of events is more likely to decide by the spatial correlation of the plate boundaries. The differences are likely to be due to earthquake characteristics, since deeper events in the subducting slabs the structural effects are likely to be larger than or comparable to those for shallow crust events. 展开更多
关键词 The slope of the initial part of P-wave ENVELOPE b Method Plate boundary Hypocenter depth
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LED光源R/B对叶用莴苣生理性状及品质的影响 被引量:56
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作者 闻婧 鲍顺淑 +1 位作者 杨其长 崔海信 《中国农业气象》 CSCD 2009年第3期413-416,共4页
研究不同红/蓝(R/B)光强配比对叶用莴苣(Lactuca sativa L.)生理性状及品质方面的影响,以便为新型人工光源在莴苣生产上的应用提供理论依据。试验利用波长为660nm(±20nm)红光与450nm(±20nm)蓝光发光二极管(Light Emitting Dio... 研究不同红/蓝(R/B)光强配比对叶用莴苣(Lactuca sativa L.)生理性状及品质方面的影响,以便为新型人工光源在莴苣生产上的应用提供理论依据。试验利用波长为660nm(±20nm)红光与450nm(±20nm)蓝光发光二极管(Light Emitting Diode,LED)作为人工光源,设置3个R/B试验处理,分别为LED1(R/B=10)、LED2(R/B=8)、LED3(R/B=6),以1个荧光灯处理为对照(CK),选用水耕栽培模式在不同光照环境下培育叶用莴苣30d。结果表明:660nm红光和450nm蓝光组合可以有效提高莴苣的光能利用率,促进光合作用;适宜的红蓝光比例能有效增加植物Vc含量,并降低硝酸盐含量。其中,处理LED2(R/B=8)的叶用莴苣净光合速率及Vc含量明显高于其他试验处理,而硝酸盐含量最低,表现出良好的生理和品质特性,因此,R/B=8相对更适宜叶用莴苣的生长发育。 展开更多
关键词 LED 莴苣 红/蓝(r/b)光强配比
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