腐食酪螨和粉尘螨的共同抗原

目的：探讨腐食酪螨和粉尘螨之间是否存在共同抗原.方法：对粉螨过敏患者进行腐食酪螨和粉尘螨特异性IgE相关性分析，用SDS-PAGE分析腐食酪螨和粉尘螨变应原，并对螨特异性IgE阳性血清进行免疫印迹试验及抑制试验.结果：42例粉螨过敏患者血清粉尘螨和腐食酪螨特异性IgE光密度值相关性较高（r=0.641 5，P＜0.01）.SDS-PAGE分析知腐食酪螨和粉尘螨变应原分子量均为10 kD～110 kD.免疫印迹抑制试验表明，腐食酪螨变应原可与粉尘螨变应原发生交叉反应.结论：腐食酪螨和粉尘螨间存在共同抗原.     

黄瓜钝绥螨(Amblyseius cucumeris)对腐食酪螨(Tyrophagus putrescentiae)卵的功能反应

研究了黄瓜钝绥螨对腐食酪螨卵的功能反应 .研究结果表明 ,黄瓜钝绥螨的第一若螨、第二若螨、雌成螨捕食腐食酪螨卵的功能反应均属于HollingⅡ型 .黄瓜钝绥螨雌成螨、第二若螨、第一若螨的攻击系数a分别为 1 16 72 ,1 0 6 38,1 5 2 84;处理时间分别为 0 0 35 38,0 0 32 75 ,0 15 70 .     

山东省储粮螨类的分布与聚类分析

通过对所采到的２３０８０头粮螨进行聚类分析,结果表明,山东省储粮螨类的最优势种为腐食酪螨,符合中国的最优势种为腐食酪螨这一规律,应用聚类分析的方法分析,螨类的发生在一定程度上气候区相中吻合。     

黄瓜钝绥螨（Amblyseius cucumeris）对腐食酪螨（Tyrophagus …

研究了黄瓜钝绥螨对腐食酪螨卵的功能反应。研究结果表明,黄瓜钝绥螨的第一若螨、第二埋葬诚螨捕食腐食酪螨卵的功能反应均属于ＨｏｌｌｉｎｇⅡ型。黄瓜钝绥螨雌成螨,第二若螨、第一若螨的攻击系数α分别为１．１６７２,１．０６３８,１．５２８４;处理时间分别为０．０３５３８,０．０３２７５,０．１５７０。     

姜黄素苯腙衍生物的合成及杀螨活性评价

姜黄素具有多种生物活性.以姜黄素为其始原料合成了一种苯腙类姜黄素衍生物.采用玻片浸渍法评价了姜黄素及其衍生物对柑橘全爪螨、朱砂叶螨、腐食酪螨的触杀活性.结果表明姜黄素及其衍生物对柑桔全爪螨、朱砂叶螨、腐食酪螨都有不同程度的触杀作用.     

火腿螨害防治途径研究：Ⅰ火腿螨及S—368链霉菌的生物学特征

宣威或金华火腿上的螨类主要是粉螨科（Ａｃａｒｉｄａｅ）酪螨属（Ｔｙｒｏｐｈａｇｕｓ）中的腐食酪螨（Ｔｐｕｔｒｅｓｃｅｎｔｉａｔ）．其它种类还有肉食螨等．防治火腿螨较为有效的Ｓ－３６８链霉菌属金色链霉菌     

粉螨污染空气的研究

为探讨粉螨污染空气的情况 ,采用空气粉尘采样器和自制空气悬浮螨采样器 ,进行工作场所内悬浮螨的分离 ,并将获得的粉螨制片、鉴定。结果在中药厂、面粉厂、纺织厂、粮库的工作场所内和本校教学楼的工作环境内发现粉螨 8种 ,即粗脚粉螨 ( A.siro) ,小粗脚粉螨 ( A.farris) ,腐食酪螨 ( T.putrescentiae) ,椭圆食粉螨 ( A.ovatus) ,纳氏皱皮螨 ( S.nesbitti) ,害嗜鳞螨 ( L .destructor) ,粉尘螨 ( D.farinae)和屋尘螨 ( D.pteronyssinus) ,隶属于 3科 6属。由此可见 ,空气中粉螨的污染严重 ,应引起注意     

两种粉螨不同虫态同工酶比较研究

采用聚丙烯酰胺垂直板凝胶电泳(PAGE)的分析方法对不同虫态的椭圆食粉螨EST、MDH和腐食酪螨EST同工酶进行了比较研究。结果表明,粉螨不同时期的同工酶酶谱有一定的相似相异性,利用粉螨的幼、若螨同工酶酶谱进行种间分类具有可行性。     

仓储粮食中粉螨生态位的逻辑质研究

采用逻辑质方法研究粉螨在粮食中生态位。分层抽样选取三类粮食的生态位进行逻辑分析。粉螨属与食酪螨孳生在三类粮食中生态位宽有逻辑差异性 ( P>0 .0 5 ,t≤ 2 .41 3;P<0 .0 5 ,t=2 .963) ,同时在粮食中的位重叠也有显著差异 ( P>0 .0 5 ,t≤ 1 .2 2 5 ,P<0 .0 5 ,t≥3.442 ) ,粉螨与食酪螨在三类粮食中倾向独立型孳生 ( X2 =2 .0 4 3,P>0 .0 5 )。并定义了逻辑舟指标。“逻辑舟”表明生态位三指标的相互一致的联系     

深点食螨瓢虫对土耳其斯坦叶螨和截形叶螨捕食作用的比较

通过室内对深点食螨瓢虫成虫捕食土耳其斯坦叶螨和截形叶螨的功能反应及种内干扰作用的研究,比较了深点食螨瓢虫对2种叶螨的捕食作用。结果表明:深点食螨瓢虫对土耳其斯坦叶螨和截形叶螨的功能反应均符合Holling-Ⅱ型;深点食螨瓢虫对截形叶螨的捕食量大于土耳其斯坦叶螨。深点食螨瓢虫对2种叶螨的捕食率均随着自身密度增加而下降。在2种叶螨共存的条件下,深点食螨瓢虫对截形叶螨明显喜好。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.