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A survey of zoonotic diseases in trade cattle slaughtered at Tanga city abattoir:a cause of public health concern 被引量:1
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作者 Swai ES Schoonman L 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2012年第1期55-60,共6页
Objective:To estimate the prevalence of hydatidosis,cysticercosis,tuberculosis,leptospirosis,brucellosis and toxoplasmosis in slaughtered bovine stock(aged≥3 years)at Tanga city abattoir,Tanzania.Methods:Prevalence e... Objective:To estimate the prevalence of hydatidosis,cysticercosis,tuberculosis,leptospirosis,brucellosis and toxoplasmosis in slaughtered bovine stock(aged≥3 years)at Tanga city abattoir,Tanzania.Methods:Prevalence estimation of the five zoonotic diseases was undertaken through an active abattoir and sero-survey was carried out in Tanga city,during the period of January 2002and March 2004.Serum samples collected from a sub-sample(n=51)of the slaughter stock were serologically screened for antibodies against brucellosis,leptospirosis and toxoplasmosis using Rose Bengal plate test,microscopic agglutination test(for 5 serovars of Leptospira interrogans)and Eiken latex agglutination test,respectively.The same animals were tested for tuberculosis using the single intradermal tuberculin test.Results:Post mortem examination of 12 444 slaughter cattle(10 790 short horn zebu and 1 654 graded)over a period of twenty two months,showed a prevalence of 1.56%(194)for hydatidosis,1.49%(185)for cysticercosis and 0.32%(40)for tuberculosis.In all three zoonoses,a statistically significant difference in infection rates was noted between the short horn zebu and graded breeds(P<0.05).The overall seroprevalences of animals with brucellosis,toxoplasmosis and leptospirosis antibodies were found to be 12%,12%and 51%,respectively.The most common leptospiral antibodies detected were those against antigens of serovars Leptospira hardjo(29%),Leptospira tarassovi(18%),Leptospira bataviae(4%)and Leptospira pomona(0%).With regard to tuberculosis,10%(n=5)of the animals tested were classified as non-specific reactors or inconclusive.Conclusions:The study findings suggest that brucellosis,toxoplasmosis and leptospirosis are prevalent in Tanga and provide definitive evidence of slaughtered stock exposure to these zoonotic agents with concurrent public health consequences. 展开更多
关键词 ABATTOIR SLAUGHTER stock ZOONOSES Risk tanga Tanzania Brucellosis TOXOPLASMOSIS LEPTOSPIROSIS Antibody Seroprevalence ZOONOTIC disease
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Microbial quality and associated health risks of raw milk marketed in the Tanga region of Tanzania
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作者 Swai ES Schoonman L 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2011年第3期217-222,共6页
Objective:To evaluate micmbial quality and associated health risks of raw milk marketed in the Tanga region of Tanzania.Methods:A microbial quality assessment of marketed raw milk was undertaken by evaluating 59 sampl... Objective:To evaluate micmbial quality and associated health risks of raw milk marketed in the Tanga region of Tanzania.Methods:A microbial quality assessment of marketed raw milk was undertaken by evaluating 59 samples of milk from selling points(collecting centres =15),bicycle boys(12) and kiosks/restaurants(32) in Tanga city during April-May 2005.Quality and milkborne hazards were assessed using a combination of tests in order to quantify the occurrence of Brucellosis(milk ring test),Escherichia coli(E.coli) O157:H7(culture),the coliforra bacteria as well as standard plate count(SPC).Specific gravity(SG) determination was used as an indicator of adulteration.Results:The mean coliform plate count(c.f.u/mL) of milk handled by bicycle boys(4.2×10~6) was significantly higher than that handled by collecting centres(3.0×10~6) and kiosk/ restaurants(1.4× 10~6),respectively(P 【 0.05).Of the 59 milk samples collected,33(56%) were Brucella milk ring test(MRT)-positive and 78%and 17%of the samples graded satisfactorily based on SG and coliform plate counts as prescribed by East African Community standards for raw milk.There was no verocytotoxigenic E.coli(VTEC) O157:H7 in any of the milk samples collected and analysed during the present study.Conclusions:It can be concluded that raw market milk in the study area is of poor bacteriological quality and hazardous for human consumption. This highlights the need to implement good hygiene practices and effective monitoring from production through the delivery chain to the consumer.Further studies are needed for detection of toxins that are produced by E.coli,other pathogenic spore forming bacteria(Bacillus spp.and Clostridium spp.) and other harmful microorganisms. 展开更多
关键词 Contamination Health risks Microbial QUALITY Whole raw milk tanga Tanzania MICROORGANISM Milk-borne hazard ESCHERICHIA COLI BRUCELLOSIS CLOSTRIDIUM Bacteriological QUALITY
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晚三叠世鱼龙Shastasaurus tangae头骨新观察及其演化趋势
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作者 尚庆华 赵梧迪 李淳 《中国科学:地球科学》 CSCD 北大核心 2012年第5期773-783,共11页
鱼龙类是中生代统治海洋时间最久的海生爬行动物类群之一.依据产自贵州关岭地区晚三叠世法郎组瓦窑段大型鱼龙骨骼化石新材料,从侧视、顶视和后视三个观察方向补充介绍了Shastasaurus tangae(邓氏萨斯特鱼龙)头部骨骼形态和骨骼间接触关... 鱼龙类是中生代统治海洋时间最久的海生爬行动物类群之一.依据产自贵州关岭地区晚三叠世法郎组瓦窑段大型鱼龙骨骼化石新材料,从侧视、顶视和后视三个观察方向补充介绍了Shastasaurus tangae(邓氏萨斯特鱼龙)头部骨骼形态和骨骼间接触关系,并重点描述了鱼龙的枕部骨骼结构.S.tangae发达的前颌骨鼻上支向后伸至外鼻孔背缘中后部,鼻骨参与构成外鼻孔的背后侧缘,上颌骨的鼻后支分隔了泪骨和外鼻孔.外鼻孔周缘骨骼在不同时代的特征变化指示了鱼龙类外鼻孔具有位置逐渐向后、与眼眶距离逐渐缩短的演化趋势.鼻骨后缘和额骨锯齿状缝合,后外侧支和后额骨相交,分隔额骨和前额骨.上颞孔前平台发育中等,长度随个体变大而变短,显示与个体发育的相关性.顶脊前端自顶孔后部分叉,在额骨背面形成显著的V形脊状结构,顶脊侧支后平台略发育.由轭骨、眶后骨、方轭骨和方骨围成颊部腹缘,鳞骨既不参与构成颊部深湾也不参与构成上颞孔边缘.顶骨后缘内凹,基枕骨两侧具较大的翼状突起,上枕骨工字形、稍高,枕大孔较大,后耳骨呈大而宽的板状,镫骨小而窄.枕部骨骼的研究和对比表明,鱼龙类从三叠纪到白垩纪的进化历程中,颅骨呈现出基枕骨外枕髁区域逐渐缩小,枕髁相对增大,后耳骨逐渐变小,镫骨逐渐变大的演化趋势.产于北美洲晚三叠世的Shonisaurus枕髁外翼状突起大小与本种相当,但后耳骨小于Shastasaurus tangae,推测它应该比S.tangae进步. 展开更多
关键词 鱼龙Shastasaurus tangae 晚三叠世 头骨解剖结构 演化趋势
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女式内裤基本型的结构转变过程及其应用研究 被引量:2
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作者 段艳芳 徐东 《针织工业》 2015年第12期68-70,共3页
从女式内裤的分类入手,对女式内裤基本型的结构转变过程进行研究:按照有无裤腿的分类方法确定出两种女式内裤基本型,即三角裤和平角裤;运用立体裁剪的思维,在女式西裤基本纸样基础上按照合体性要求对女式内裤基本型进行结构转变;举例介... 从女式内裤的分类入手,对女式内裤基本型的结构转变过程进行研究:按照有无裤腿的分类方法确定出两种女式内裤基本型,即三角裤和平角裤;运用立体裁剪的思维,在女式西裤基本纸样基础上按照合体性要求对女式内裤基本型进行结构转变;举例介绍女式内裤基本型的应用。指出:女式内裤基本型可以由女式外裤基本型经过结构转变得出;女式内裤基本型能应用到其他款式的内裤结构设计中。 展开更多
关键词 女式内裤 基本型 三角裤 平角裤 纸样设计
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欧阳晓勇教授运用化斑汤合封髓丹加味治疗血筋箭验案举隅
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作者 黄南 葛晋宏 +4 位作者 欧阳晓勇(指导) 车朝敏 邹纯燕 谢太琴 赵田田 《中国民族民间医药》 2020年第12期102-104,共3页
文章总结了欧阳晓勇教授治疗血筋箭的临证经验,其认为阴血不足,阴不制阳,阳亢于上,相火妄动犹蟠龙上冲天宫,燔灼阴血,阴血沸腾,血热妄行,脉络扩张,气血纵横,结聚成瘤,是本病的重要病机之一。故从卫气营血辨证角度出发,运用化斑汤合封髓... 文章总结了欧阳晓勇教授治疗血筋箭的临证经验,其认为阴血不足,阴不制阳,阳亢于上,相火妄动犹蟠龙上冲天宫,燔灼阴血,阴血沸腾,血热妄行,脉络扩张,气血纵横,结聚成瘤,是本病的重要病机之一。故从卫气营血辨证角度出发,运用化斑汤合封髓丹加味治疗,清气凉血,潜阳降火,取得满意疗效。 展开更多
关键词 血筋箭 化斑汤合封髓丹加味 临床验案
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基于EMI-Ⅱ的火山区域二氧化硫反演研究
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作者 钱园园 罗宇涵 +5 位作者 周海金 常振 杨太平 奚亮 汤付颖 司福祺 《光学学报》 EI CAS CSCD 北大核心 2023年第6期94-103,共10页
利用差分吸收光谱技术(DOAS)反演了我国第二代星载大气痕量气体差分吸收光谱仪(EMI-Ⅱ)的SO_(2)斜柱浓度(SCD),并通过辐射传输模型SCIATRAN建立了SO_(2)大气质量因子(AMF)的查找表,经去条带处理后获得SO_(2)的垂直柱浓度(VCD)。以2021... 利用差分吸收光谱技术(DOAS)反演了我国第二代星载大气痕量气体差分吸收光谱仪(EMI-Ⅱ)的SO_(2)斜柱浓度(SCD),并通过辐射传输模型SCIATRAN建立了SO_(2)大气质量因子(AMF)的查找表,经去条带处理后获得SO_(2)的垂直柱浓度(VCD)。以2021年10月底拉帕尔马岛火山区域为研究对象,基于EMI-Ⅱ数据反演的SO_(2)VCD与国外同类型载荷TROPOMI的结果一致,相关性系数R分别为0.89、0.90、0.92。此外,还将汤加海底火山的SO_(2)反演结果与TROPOMI的监测数据进行对比,结果表明,EMI-Ⅱ观测结果与TROPOMI一致,都观测到此次SO_(2)羽流的自东向西的传输过程。结合风场数据,计算了2022年1月14—15日汤加海底火山爆发产生的SO_(2)排放通量,结果表明,利用EMI-Ⅱ载荷反演的火山区域SO_(2)VCD可靠性高,可实现全球火山爆发预警。 展开更多
关键词 大气光学 差分吸收光谱 EMI-Ⅱ SO_(2)垂直柱浓度 汤加海底火山
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