Research Advance of Target Tracking with Mobile Elements in Heterogeneous Wireless Sensor Networks

传统固定无线传感器网络在进行目标跟踪过程中面临跟踪质量较低、网络能耗较高等问题.引入移动节点后所组成的异构无线传感器网络提供了新的解决方法,即移; 动式目标跟踪.目前的研究大多对被跟踪目标的探测和定位混为一谈,本文区分了以探测为主和以定位为主的两类方法,着重介绍以探测为主的移动式目标跟踪方法; 的研究现状.通过对比现有方法在跟踪质量和网络能耗等方面的优缺点,揭示了现有研究存在的问题.总结了移动式目标跟踪领域存在的研究热点和趋势.Traditional stationary wireless sensor networks usually encounter some; problems during the process of target tracking,such as low tracking; quality, high energy consumption and so on. More and more mobile; elements, i. e., mobile sensors, are used to build up heterogeneous; wireless sensor networks and thus bring new solutionsfor target; tracking. Existing researches usually misidentify detecting the target; with locating the target. After distinguishing between detection-centric; and localization-centric methods,we review specifically the current; research status of the detection-centric target tracking methods. By; comparing existing methods'merit and demeritin aspects like tracking; quality, energy consumption, etc.,their problems are revealed.; Therefore, we summarize some possible research hotspotsand tendency of; mobile solutions in many aspects.国家自然科学基金重点项目; 国家科技支撑计划项目; 国家自然科学基金项目; 福建省自然科学基金计划项

Clinical Research of Kangshi Kangxian Recipe Treating on Hepatic Fibrosis of Chronic Hepatitis B

目的观察康氏抗纤方治疗慢性乙型肝炎肝纤维化的临床疗效,探讨其对肝组织N-花生四烯酸氨基乙醇(; arachidonoylethanolamine,AEA) 、2-花生四烯酸甘油( 2-arachidonoylglycerol,2-AG); 、大麻素受体1( cannabinoid receptor 1,CBR1) mRNA、大麻素受体2( cannabinoid receptor; 1,CBR2); mRNA含量变化的影响。方法将110例慢性乙型肝炎肝纤维化患者按随机数字表法分为治疗组和对照组,每组55例。治疗组予中药康氏抗纤方联合恩替卡韦分; 散片治疗,对照组用恩替卡韦分散片单药治疗,两组均治疗48周。判定两组临床疗效,检测血清ALT水平,HBV; DNA、HBsAg、HBsAb定量,肝组织病理、肝硬度变化,肝组织AEA、 2-AG含量和CBR1、CBR2; mRNA表达水平。结果与对照组比较,治疗组的临床总有效率、HBsAg阴转率、肝组织纤维化分期疗效有效率均高于对照组(chi~2 =; 4.453,4.152,6.364,均P < 0.05); 。与本组治疗前比较,治疗后两组患者肝纤维化瞬时弹性测定值、AEA、2-AG含量及CBR1、CBR2 mRNA表达均降低(均P <; 0.05),且治疗组降低更明显(均P < 0.05); 。肝组织病理显示:治疗后治疗组肝小叶结构基本完整,肝细胞轻度水样变性,汇管区纤维组织无增生,局部少量淋巴细胞浸润,炎症及纤维化较对照组明显改善。; 结论康氏抗纤方具有提高慢性乙型肝炎肝纤维化患者的临床总有效率、HBsAg阴转率、肝组织纤维化分期疗效有效率,其作用机制可能与调节内源性大麻素系统; 有关。Objective To observe the clinical effect of Kangshi Kangxian Decoction (; KSKXD) in treating on patients of hepatic fibrosis of chronic hepatitis; B ( CHB),and to explore the mechanisms of KSKXD by regulating the; contents of arachidonoylethanolamine ( AEA),2-arachidonoylglycerol (; 2-AG),cannabinoid receptor 1 ( CBR1 mRNA) and cannabinoid receptor 2 (; CBR2 mRNA) in the liver tissue. Methods Totally 110 patients with; hepatic fibrosis of CHB were assigned to the treatment group and the; control group according to random digit table,55 cases in each group.; The treatment group was treated with Chinese herb KSKXD combined with; Entecavir,and the control group was treated with Entecavir. Both of the; two groups were treated for 48 weeks. The clinical efficacy of the two; groups was determined. The serum ALT levels,HBV DNA, HBsAg and HBsAb; quantification,liver pathological changes,liver stiffness; changes,contents of AEA and 2-AG,mRNA expression of CBR1 and CBR2 in the; liver tissue were detected. Results The total effective rate,HBsAg; negative conversion rate,hepatic fibrosis staging and curative effect; rate of the treatment group were higher than those of the control group; (chi~2 = 4.453,4.152,6.364,allP <0.05). After treatment,the; instantaneous elasticity of liver fibrosis,the contents of AEA and; 2-AG,the mRNA expressions of CBR1 and CBR2 in the liver tissue in the; two groups were decreased compared to those of the same group before; treatment (P < 0.05),and the treatment group had better effect than that; of the control group (P < 0.05). The pathological changes in the; treatment group after treatment indicated the liver lobules; integrity,mild hydropic degeneration of liver cells,periportal fibrous; tissue hyperplasia,local small lymphocytic infiltration,which fibrosis; and inflammation were better than those of the control group.; Conclusions KSKXD was effective in the treatment of hepatic fibrosis of; CHB, which improved total effective rate,HBsAg seroconversion rate and; liver fibrosis stage efficiency. And its mechanism maybe related to the; regulation of the endocannabinoid system.国家自然科学基金资助项目; 福建省科技计划引导性项目; 厦门市科技惠民项目; 福建中医药大学临床专项校管课题基

Mechanism of geniposide in improving free fatty acid metabolism in rats with non-alcoholic fatty liver disease

观察栀子苷改善非酒精性脂肪性肝病的效果,从游离脂肪酸探讨栀子苷调节非酒精性脂肪性肝病的作用机制。健康雄性Wistar大鼠40只,随机分为4组:正常组、模型组、栀子苷组和血脂康组,每组大鼠10只,正常组大鼠给予正常大鼠饲料喂养,其余3组大鼠均采用高脂饲料喂养以诱导非酒精性脂肪性肝病,造模时间为8周,从第5周起至第8周末,栀子苷组和血脂康组分别灌服相应的药物。记录大鼠体重、肝湿重、脂肪质量;用相应方法检测肝组织TG,FFA,FAS,AMPK,ACCase及Malonyl-Co A含量,血清CHO,LDL-C的含量,血清AST,ALT的活性;观察肝脏组织肉眼及病理变化(HE染色法)。结果显示,与正常组相比,模型组大鼠的体重;肝湿重;脂肪重;血清CHO,LDL-C,ALT,AST;肝组织TG,FFA,FAS,ACCase及Malonyl-Co A含量皆显著升高(P<0.01);肝组织AMPK活性显著降低(P<0.01),肝组织肉眼外观及病理切片脂肪变性明显,并出现炎症损伤;与模型组相比,栀子苷组大鼠体重、脂肪质量、肝组织FFA含量、血清ALT,AST活性均显著降低(P<0.01),肝湿重,肝组织TG,FAS,ACCase及Malonyl-Co A含量明显降低(P<0.05),肝组织AMPK活性明显增多(P<0.05),肝脏肉眼外观及病理学表现均有所改善;与模型组相比,血脂康组大鼠的肝湿重、脂肪质量、肝组织TG,FFA和血清LDL-C水平明显降低(P<0.05);与血脂康组相比,栀子苷组大鼠的体重、脂肪质量、肝组织FFA含量均显著降低(P<0.01),其他方面无明显差异。结果表明,栀子苷具有显著的改善高脂饮食诱导的大鼠非酒精性脂肪性肝病的药理效应;其改善大鼠非酒精性脂肪性肝病的游离脂肪酸代谢是通过调节"AMPK-ACCase-Malonyl-Co A-FFA"轴来实现的。To observe the effect of geniposide on non-alcoholic fatty liver disease( NAFLD),and discuss the mechanism of geniposide for NAFLD from the aspect of free fatty acid,forty healthy Wistar male rats were randomly divided into normal group,model group,geniposide and Xuezhikang group. The rats in normal group were fed with normal diets,and the rats in other 3 groups were given with high-fat diet for 8 weeks to induce the NAFLD models. From the week 5 to end of week 8,the rats in geniposide and Xuezhikang group were intervened with corresponding medicines. The body weight,liver wet weight,and fat weight of the rats were recorded.Visual and pathological changes in hepatic tissues were observed with HE staining. The contents of TG,FFA,FAS,AMPK,ACCase and Malonyl-Co A in hepatic tissue,contents of CHO and LDL-C in serum and activities of AST and ALT in serum were detected by using corresponding methods. The results showed that the body weight,liver wet weight,and fat weight of the rats,CHO,LDL-C,ALT and AST levels in serum,TG,FFA,FAS,ACCase and Malonyl-Co A levels in hepatic tissues of the rats in model group were significantly higher than those in normal group( P < 0. 01),while AMPK activity was significantly lower than that of the normal group( P < 0. 01),with obvious visual and pathological steatosis in hepatic tissues,and inflammatory injury occurred in model group. Compared with the model group,body weight of the rat,fat weight,levels of FFA in hepatic tissues,ALT and AST activities in serum,liver wet weight,TG,FAS,ACCase and Malonyl-Co A levels were significantly decreased in geniposide group( P < 0. 01),while the AMPK activity in hepatic tissues was significantly increased( P < 0. 05),with improvement in visual and pathological performance.Compared with the model group,liver wet weight,fat weight,TG and FFA levels in hepatic tissues,and LDL-C level in serum were significantly decreased in Xuezhikang group( P < 0. 05). Compared with Xuezhikang group,the body weight of rat,fat weight and FFA level in hepatic tissues were significantly lower in geniposide group( P < 0. 01),but with no significant difference in other aspects. These findings indicated that geniposide was highly effective in improving the pharmacological effect of NAFLD induced by highfat diet,and the mechanism was achieved through AMPK-ACCase-Malonyl-Co A-FFA axis.国家自然科学基金项目(81274155;81503529);; 福建省自然科学基金项目(2014J01374);; 福建省高等学校新世纪人才计划项目;; 厦门市科技计划项目(3502Z20134020);; 福建省中医药科研项目(WZPW201308

Essence of tongue diagnosis of HE Meng-yao

岭南,指中国五岭以南的地区,相当于现在广东、广西及海南全境。因气候炎热潮湿,人群多脾胃虚弱,病多阳虚、痰湿。从晋代以后,当地医家以中原医学为基础; ,结合岭南特殊气候和人群体质特点,逐渐形成独具风格的岭南医学流派。何梦瑶作为岭南名医之一,其医术高明,医学著作颇丰,极大地促进了岭南医学的发展。; 《医碥》是其代表作之一,亦是其学术思想的精髓,为现代研究何梦瑶学术思想和岭南医家流派的主要古籍。其中所记载的舌诊方法,至今仍具有临床实用意义。Lingnan, Chinese refers to the south of the five ridges area, which is; equivalent to the current Guangdong province, Guangxi province and; Hainan province. All due to the hot and humid climate, majority of local; people are with spleen and stomach deficiency, most of the clinical; manifestation are yang deficiency and dampness. After the Jin dynasty,; based on the traditional Chinese medicine of central plains, the local; doctors gradually formed their unique medical schools, combining with; the characteristics of the local climate and peoples constitutions. As; one of the famous specialists in the south of the five ridges, HE; Meng-yao, greatly promote the development of local medical health level.; Yibian is one of his famous masterpieces, which is also the essence of; the his medicine. Records of tongue diagnosis in this book are still; practical in clinical.国家自然科学基金资助项目; 福建中医药大学校管课题; 福建省科技计划引导性项

Efficacy of Zaozhu Yinchen Recipe for Treating Non-alcoholic Steatohepatitis and Its Effect on Free Fatty Acid and TNF-α

目的观察皂术茵陈方治疗非酒精性脂肪性肝炎(non-alcoholic steatohepatitis,NASH)患者的临床疗效,并探讨其对游离脂肪酸(free fatty acid,FFA)及TNF-α的影响。方法采用随机数字表法将120例NASH患者分为治疗组及对照组,每组60例。治疗组予中药皂术茵陈方,每日1剂;对照组予水飞蓟宾葡甲胺片200 mg口服,每日3次,两组均治疗24周。分别于治疗前后通过检测血清ALT、AST活性及TC、TG水平;行腹部CT计算肝脾CT比值;应用肝组织病理检查评价非酒精性脂肪性肝病活动度积分(NAFLD activity score,NAS)及纤维化程度以评价临床疗效;并检测血清FFA及TNF-α含量。结果与本组治疗前比较,两组治疗后血清ALT、AST、TC、TG、FFA、TNF-α水平、肝组织NAS积分及症状体征积分均明显降低,肝纤维化程度明显改善(P<0.05,P<0.01),且治疗组降低更明显(P<0.05)。治疗24周后,治疗组肝纤维化分期总有效率及临床总有效率分别为80.00%(48/60)、85.00%(51/60),明显高于对照组[60.00%(36/60)、73.33%(44/60)],两组比较,差异有统计学意义(P<0.05,P<0.01)。结论皂术茵陈方可改善NASH患者的临床疗效,其作用可能与抑制血清FFA及TNF-α水平有关。Objective To observe the efficacy of Zaozhu Yinchen Recipe(ZZYCR) on non-alcoholic steatohepatitis(NASH) patients, and to explore its effect on serum free fatty acid(FFA) and tumor necrosis factor α(TNF-α).Methods Totally 120 patients with NASH were randomly assigned to the treatment group(60 cases,treated with ZZYCR, one dose per day) and the control group(60 cases, treated with Silibin Meglumine Tablets, 20 mg each time, thrice per day). The therapeutic course for all was 24 weeks. Serum levels of ALT and AST activities, TC and TG levels were detected before and after treatment. Peritoneal CT was performed in all patients, and CT ratios of liver and spleen calculated. NAFLD activity score(NAS) and degree of hepatic fibrosis were assessed using pathological examinations of liver tissue, and efficacy also evaluated. Serum contents of FFA and TNF-αwere also detected. Results Compared with before treatment in the same group, activities of ALT and AST, serum levels of TC, TG, FFA, and TNF-α, NAS, scores of symptoms and signs all obviously decreased, degree of hepatic fibrosis was obviously improved in the two groups(P < 0. 05, P < 0. 01). These changes were more obviously seen in the treatment group(P < 0. 05). After 24-week treatment, the total effective rate and total clinical efficacy were 80. 00%(48/60 cases) and 85. 00%(51/60 cases) in the treatment group, obviously higher than those in the control group [60. 00%(36/60 cases) and 73. 33%(44/60 cases) respectively], with significant difference(P < 0. 05, P < 0. 01). Conclusion ZZYCR could improve the clinical efficacy of NASH patients, and its mechanism might be associated with inhibiting serum levels of FFA and TNF-α.国家自然科学基金资助项目(No.81503529,81274155);; 福建省自然科学基金面上资助项目(No.2014J01374);; 福建省卫生厅中医药项目(No.wzpw201308);; 厦门市科技计划项目(No.3502Z20134020

皂术茵陈方治疗非酒精性脂肪性肝炎40例临床研究

目的:观察皂术茵陈方治疗非酒精性脂肪性肝炎的临床疗效。方法:将78例患者单盲法随机分为治疗组40例和对照组38例;治疗组予中药皂术茵陈方治疗,对照组采用水飞蓟宾葡甲胺片(西利宾安)治疗;两组均治疗2个月。检测治疗前后患者血清谷丙转氨酶(AlT)、谷草转氨酶(AST)活性、血清总胆固醇(TCH)、甘油三酯(Tg)含量;比较患者肝脏b超变化以及症状、体征积分等临床疗效。结果:经过2个月治疗,治疗组的临床总有效率达87.50%,较之对照组的73.68%,差异有统计学意义(P<0.05);两组治疗后症状、体征积分、肝脏b超改善情况、血清AlT、AST活性、血清TCH、Tg含量均较各自治疗前显著改善;较之对照组,治疗组上述改善更加显著(P<0.05)。结论:中药皂术茵陈方对改善非酒精性脂肪性肝炎有较好的临床疗效,可明显改善患者肝功能、血脂、b超影像指标及临床证候。国家自然科学基金(No.81274155); 福建省卫生厅中医药项目(No.wzpw201408); 厦门市重大科技计划项目(No.3502Z20100006

多重荧光PCR同时检测转基因成分35S和Nos方法的建立

根据商品化转基因作物中常用的花椰菜花叶病毒启动子 (CaMV 35S)和根癌农杆菌终止子 (Nos)的序列特点 ,设计并合成了两对引物和相对应的荧光双链探针 ,建立一种应用荧光双链探针的多重荧光PCR同时检测转基因成分 35S启动子和Nos终止子的方法 .并利用该方法对马铃薯、大豆、玉米、甜椒、番茄等 11份实物样品进行了检测 ,其中有 5份样品结果阳性 .结果表明所建立的多重荧光PCR方法能同时检测出 35S和Nos双组分 ,较常规PCR技术更为简便、快速、准确 ,有很好的应用前景

酸雨胁迫及稀土农用条件下菠菜及其土壤中稀土元素的赋存

利用盆栽实验研究了酸雨胁迫、稀土农用条件下 ,菠菜及其土壤中稀土元素的含量及分布特征。结果表明 :菠菜地上部分的REE含量为 0 .5 2 7～ 0 .696μg·g- 1 之间 ,地下部 2 .668～ 3 .0 0 3 μg·g- 1 。土壤 2 2 9.0 9～ 2 5 0 .3 μg·g- 1 。酸雨明显地影响作物对REE的吸收和利用 ,酸度越大 ,影响越明显。随着酸雨酸度的增大、植株体内、土壤中的REE受淋洗的作用加强而表现出REE的总量随着pH的减小而逐渐减少。施用稀土后 ,植株的地上或地下部分及其土壤中的REE含量均与对照的土壤中的REE分配模式基本相同 ,遵循稀土元素分布丰度的奇偶 (Oddo Harkins)规则、轻稀土富集 ,Eu弱负异常 ,富铈配分型 ,表明稀土元素仍然主要来自土壤并受其影响

Accumulation of Rare Earth Elements in Spinach and Soil under Condition of Using REE and Acid Rain Stress

The content and distribution characteristics of REE in spinach and soil under using REE and acid rain stress were studied by pot experiments. The results show that the content of REE is 0.527～0.696 (μg·g - 1) in the above2ground portion of spinach , 21668～31003 (μg·g - 1) in the under2ground portion of spinach and 229109～ 250130 (μg·g - 1) in the soil . With the acidity of acid rain increasing , the leaching of REE in plants and soil is strengthened and the amount of REE reduces with decreasing of pH value . After REE are used , though plants show the selective absorption to Ce group elements (especially spraying on leaves) , regardless under acid rain stress or using REE or not , the distribution model of REE in the above2ground and under2ground portion of plants is basical2 ly the same with the control . Plants also follow the Oddo2Harkins rule of the REE of distribution abundance , light rare earth elements is enriched , the minus of Eu is abnormal and admeasure of Ce is a rich model . The results show that REE in plants mainly come from soil and are affected by it