国际原油选择方向我国油脂市场应积极防范风险

3月份迄今．国际石油价格的波段走势可谓“一枝独秀”．相较之下，CBOT大豆衍生品市场却呈现箱体振荡的走势．而国内油脂市场则延续基本面为主导的弱势寻底格局．市场再次验证了预测机构前期作出的油脂行情预测。本文立足于引发近期外围能源市场强势振荡加剧的关键性因素．结合中期我国油、籽市场的供需基本趋势，包括政策面调控导向的新动态．提示和分析下一阶段我国油脂市场可能存在的逆市波动风险。     

2009年4月全国饲料生产形势分析

1全国总体概况 4月份，国内畜禽产品消费增加，禽类产品价格有所回升，饲料产量继续增长，水产饲料增长幅度尤为明显。根据对全国29个省（自治区、直辖市）167家饲料企业的调查显示，其总产量为270．4万t，同比上涨5．1％，环比上涨12．2％（表1）。     

湖南省茶树黑刺粉虱寄生蜂调查

在湖南调查茶园黑刺粉虱的寄生蜂,共获5种。其中,长角广腹细蜂Amitus longicornis(?),粉虱长棒蚜小蜂东方型Eretmoeerus serius var orientalis Silvestri,粉虱蚜小蜂TrichaPorus formosus(Gah.)及黄盾粉虱蚜小蜂Encarsia sP.系中国新记录种。另一种为长腹扑虱蚜小蜂Prospaltella ishii Silvestri,系湖南新记录种。本文分别记述了它们的形态、寄主、分布及习性观察结果。     

原发性肾病综合征患者血、尿γ-干扰素的检测及其临床意义

目的：为进一步阐明γ—干扰素(IFN—γ)在原发性肾病综合征(PNS)发生发展中的作用及检测IFN—γ的临床诊断价值。方法：对32例PNS患者及10例正常人血清、尿液IFN—γ的水平进行检测，并结合PNS病理类型及其他临床指标进行分析。结果：系膜增生性肾炎(MesPGN)患者尿IFN—γ水平显著高于正常对照组，而非增生性肾炎组却与对照组差异无显著性；其次，尿IFN—γ水平与尿纤维蛋白(原)降解产物(FDP)浓度呈正相关；但与血肌酐(Ser)、血清肌酐清除率(Ccr)、24h尿蛋白定量(24hUPQ)无相关性。血清IFN—γ水平各组问差别无统计学意义。结论：IFN—γ参与增生型PNS免疫性肾损伤过程，并可能通过局部方式起作用，尿IFN—γ检测有可能作为区分增生性肾炎和非增生性肾炎的指标。     

浙农大A系意蜂生产性能考察试验报告

用杂交一代蜂群进行对比试验的结果表明,浙农大 A 系意蜂的产育力、群势增长速度、采蜜量等,与平湖意蜂和澳大利亚意蜂无显著差异或基本一致,但蜂王浆高产性能表现突出,产量比平湖意蜂高19.5%,比澳意高42.5%,而且质量指标符合国家规定和出口标准。     

湖南高品质棉研究进展与发展对策

根据国家将长江中下游棉区定位为50￣60支纱生产基地的区划要求,分析国内外及湖南棉区高品质棉的研究现状及发展前景,并针对限制湖南高品质棉发展的“瓶颈”因素提出了加强纺织技术改造,是当务之急,创造与引进优异新种质新材料、遗传品质改良工程,优异纤维品质的基因工程是根本途径,加速新品种选育是重中之重。     

我国南方草地资源现状及其发展前景

根据我国南方地区自然资源特点、草地类型、利用现状等,总结、分析了南方草地资源的优势、发展潜力和目前所面临的实际问题,并有针对性地提出了不同类型草地资源草产业发展模式。     

Association of polymorphism of Fc receptor γ chain gene at position-29 in promoter with the susceptibility to systemic lupus erythematosus in southern Chinese

AIM:To detect the association between the polymorphism of Fc receptor γ chain gene at position-29 in promoter and systemic lupus erythematosus(SLE).METHODS:The genotypes at position -29 in promoter of Fc receptor γ chain gene were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method in 180 patients with SLE and 140 ethnically matched controls in southern China.RESULTS:The frequencies of TT genotype(33.3%) and T allele (54.4%) at position -29 in patients with SLE were significantly higher than those in controls (17.2% and 42.9%, respectively), whereas, the frequencies of GG genotype (24.4%) and G allele (45.6%) in patients with SLE were remarkably lower than those in controls (31.4% and 57.1%, respectively) (P＜0.05). The TT genotype and T allele at position -29 were not associated with lupus nephritis in SLE patients (P＞0.05).CONCLUSION:Our results indicate that the T allele at position -29 in promoter of Fc receptor gene probably contributes to the susceptibility to SLE, but does not play a role in the occurrence of lupus nephritis.     

区域旅游资源开发定位研究——以内蒙古赤峰市为例

区域旅游资源开发是发展区域旅游的基础 ,开发的定位研究有助于为一地旅游业的发展指明方向。本文从区域角度和空间经济一体化思想出发 ,以赤峰市为例 ,通过对旅游资源的定量与定性研究 ,得到旅游资源的综合评价图式 ,结合区际分析归纳出赤峰市旅游资源开发利用的方向和层次。从而为区域旅游开发的定位研究进行了一般理论的探讨及例证分析     

Study on integrin-mediated albumin microbubbles adherence to activated leukocytes

AIM:To investigate the mechanism responsible for albumin microbubbles adherence to activated leukocytes. METHODS: In vitro studies were performed in which activated or nonactivated leukocytes were incubated with albumin microbubbles and observed under microscopy. The suspensions of leukocytes and microbubbles which contained or absented of integrins were analyzed with flow cytometry.RESULTS: A minimum of 50cells were identified under transillumination. 5 min after microbubbles were incubated with leukocytes, the number of cells interacting with microbubbles was greater for activated cells than for nonactivated cells(20.30±2.67 vs 4.50±1.43, P <0.01).Microbubbles attached to the surface of activated leukocytes were phagocytosed and remained intact for up to 30min. Microbubble attachment was inhibited notably by blocking the leukocyte β₂-integrin Mac-1(P <0.01) and by VLA-4mAb slightly(P <0.05) CONCLUSION: The mechanism of albumin microbubbles attaching to and phagocytosed by leukocytes was due to β₂-integrin and VLA-4 mediation. Phagocytosed microbubbles can remain at the regions of inflammation for15 min, also responsible to ultrasound.