宽鳍鱲对不同化学信息的行为响应

【目的】考察高山急流生境宽鳍鱲(Zacco platypus)的化学信息识别和应答特征。【方法】对比空白实验组以及依次加入与化学预警信息(CAC)溶液和捕食者信息溶液等体积的水、CAC溶液(宽鳍鱲自身皮肤组织提取液)和乌鳢(Channaargus)气味溶液后的宽鳍鱲游泳速度、移动总距离、运动时间比等的行为参数变化。【结果】宽鳍鱲在依次加入水、CAC溶液和捕食者信息溶液后行为反应参数均无统计学意义上的变化。【结论】宽鳍鱲的化学信息识别和应答可能缺失,推测应与急流生境化学信息难以保持、接收和传递,水体透明度高因而视觉信息传递更为准确和有效,以及因食物缺乏而节约能量有关。     

宽鳍鱲鉴定的初步探讨

对华南森林溪流中鲤形目鲤科Dan亚科宽鳍鱲（Zacco platypus)的外部形态进行观察、测量、统计，发现种的外形变化没有特定规律性，对来源于华南地区的宽鳍鱲的鉴定，参照本文研究结果会更准确。     

鲤亚目三种鱼的核型研究兼论■亚科鱼类的核型演化以及双孔鱼科、胭脂鱼科、鲤科的分类地位

报道了采自西双版纳州的双孔鱼,金线■丽色低线鱲的核型分析结果,讨论了■并科鱼类的倍性关系,否定了中国的宽鳍鱲和马口鱼可能都是三倍体说法。本文从核型演化     

马克思主义哲学体系逻辑起点漫谈

哲学作为一种以观念形式把握人与世界关系的思想理论体系，其揭示的世界图景是人类立足于实践基础上的对人类活动及其成果的反思。反思的维度在哲学体系中就表现为哲学体系的出发点概念即逻辑起点；逻辑起点的科学、合理确立必须遵循逻辑与历史相统一的原则；以物质范畴作为哲学的逻辑起点，不能全面地体现哲学反思的维度，以静态的方式去反映世界并割裂自然观与历史观的统一是其固有的局限性；以实践作为哲学体系的逻辑起点，能科学地体现出马克思主义哲学反思的维度，并使其体系具有内在的统一性。     

中原城市群人地异速关系空间特征及驱动因素分析

人地关系的协调对于社会经济持续健康发展有重要意义.根据异速增长模型结合空间自相关分析以及地理加权回归方法，对中原城市群人地异速增长关系的时空演变特点及驱动因素进行分析.研究结果表明，2003—2018年中原城市群整体城市用地增长与人口增长的协调度较弱，以人口显著增长为主，其次为人口明显增长，以负异速增长为主；负异速一级和负异速二级城市在空间上主要集中分布于中原城市群的西北以及西南区域；结合地理加权回归模型得出：在影响因素方面，GDP、普通中小学专任教师数、第三产业就业人员数、规模以上工业企业单位数对中原城市群大多数城市的异速增长系数起到负向作用.人均公园绿地面积对中原城市群半数城市的异速增长系数起正向作用，半数起负向作用.道路长度对中原城市群大多数城市的异速增长系数起到正向作用.     

云南洞穴二须鳅属一新种

2015年10月，在云南省丘北县采到一尾二须鳅标本，经鉴定为尚未记录的新物种，以其采集地温浏乡命名为温浏二须鳅Bibarba wenliuensis sp. nov..该新种可以通过以下特征与同属的其余2个物种相区分：身体无色，无鳞片；头较小；眼睛全部退化；背鳍分枝鳍条为6；背鳍起点位于腹鳍起点之后；尾柄长为体长的25.0%；吻须较短，稍长于口角须；尾柄上下具有长而明显的鳍褶.     

娇导蝽属及盲异蝽属新种记述(半翅目:异蝽科)

本文记述5个发现于我国的异蝽科新种及一个新组合，分隶于桥异蝽属UrostylisWest－wood（叉娇异蝽Urostylisfurca（Lin）（新组合）；猫儿山娇异蝽UrostrylismaoershanensisRen，sp．nov．（新种）；湖北娇异蝽UrostylishubeiensisRen，sp．nov．（新种））及盲异蝽属UrolabidaWestwood（保山盲异蝽UrolabidabaoshananaRen，sp．nov．（新种）；华夏盲异蝽UrolabidasinicaRenetLiu,sp.nov.（新种）；宫本盲异蝽UrolabidamiyamotolRen，sp．nov．（新种））计6种．并提出以下的异蝽科新异名关系：Urolabidanigromarginatus(Reuter,1881）（＝UrostylisguangdongensisChen，1994，syn.nov．）;UrochelasiamensisYang1938（＝UrochelalongmenensisChen，1994,syn．nov．）     

花粉细胞中异三聚体G蛋白的检测（快报）

花粉细胞中异三聚体Ｇ蛋白的检测（快报）马力耕毛国红崔素娟孙大业（河北师范大学生物系，０５００１６，石家庄；第一作者３２岁，男，博士生）关键词花粉；异三聚体Ｇ蛋白；免疫印迹分类号Ｑ５１２在动物细胞中由异三聚体Ｇ蛋白将膜向受体和效应器偶联起来，在细胞信号...     

学校与社会联合办学 学历与培训比翼双飞

武汉大学成人高等教育目前开设高中起点专科、高中起点本科和专科起点本科专业近200个，面向全国20多个省、市、自治区招生，并设立函授站61个，每年招生7000余人。目前在校成教脱产、业余及函授生共计1．86万人；高等教育自学考试主考专业40多个；网络教育现开设工商管理、     

陶渊明、王维诗歌意境之比较

把陶渊明与王维的诗歌意境作比较，其诗歌的意境有共伺之处：无我之境，韵外之致，意与境浑；并在同与异的比较过程中，揭示出二人诗歌意境同与异的根源，他们内在精神底蕴根本不同的所在，是由于陶王二人的归隐背景不同，前者是政治性退避，而后者是生活性退避以及二人诗歌风格前后相继，各有千秋的艺术特点。     

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.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

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.