卵巢包虫病1例

患者女 ,30岁 ,因下腹隐痛半年于1996年3月11日入院。妇科检查 :外阴产型 ,阴道畅 ,宫颈Ⅰ°糜烂 ,子宫增大如孕40d大小 ,左附件区扪及不规则包块 ,大小约12cm×8cm×6cm ,不活动 ,右附件正常。B超提示 :左卵巢囊肿。术中见子宫大约9cm×7cm×5cm ,大网膜与腹膜盆壁粘连 ,左侧卵巢大约10cm×8cm×8cm向阔韧带伸长 ;右卵巢大约5cm×5cm×4cm ,形状不规则 ,盆底及腹腔见多个包块 ,行全子宫及双附件切除术 ,盆腔囊肿剥除术。临床诊断 :卵巢囊肿。病理检查 :带双附件的全切子宫1个 ,子宫大小8 3cm×5cm×5cm ,切开子宫见宫内膜光滑 ,宫腔有1枚…     

扦插密度对杨树无性系苗木生长及质量的影响

对南林 95杨、南林 895杨、NL 1388杨、NL 80 35 1杨不同扦插密度的扦插成活率、叶面积、生物量及生长量指标进行系统观测 ,研究了 1年生苗密度效应的变化规律。结果表明 ,随扦插株行距增大 ,4种无性系的单株叶面积 ,茎、叶生物量及地径均相应增加 ,叶面积指数以 4 0cm× 4 0cm的扦插株行距最高 ,单位面积生物量随扦插密度的增大而增大。随扦插密度的减小 ,苗木质量明显提高 ,南林 95杨、南林 895杨I级苗出苗量以 4 0cm× 5 0cm株行距最高 ,NL 1388、NL 80 35 1杨I级苗出苗量以 5 0cm× 5 0cm株行距最高。结合苗木产量和质量进行综合评定 ,4种无性系的扦插密度以 4 0cm× 5 0cm的株行距较为适宜     

腹膜后巨大髓外浆细胞瘤一例报道

1病例患者,男,37岁。因全身疲乏无力、腹胀消瘦3月,曾在当地医院对症治疗效果欠佳。10 d前自己发现腹部肿块就诊,于2004年9月28日入院。查体:贫血貌,腹部膨隆,从剑突至脐下6 cm可触及约18 cm×15 cm的肿块,质地较硬,表面光滑,形态不规则呈分叶状,有轻压痛,无波动感,活动度小,体位变化时肿物移动小。B超检查示:腹主动脉前见一实性低回声图,大小约18·3 cm×5·7 cm×12·2 cm,形态欠规则,边界尚清,内回声不均,不随体位改变移动;腹腔内探及游离液性暗区,深7·4 cm。CT检查示:胰头区可见一大小约10·7 cm×6·7 cm肿块影,边缘不规则,与周围组…     

^131I甲状腺核素显像诊断甲状腺癌脑转移一例

1　病例患者 ,男 ,4 4岁 ,于 1997年 4月、1999年 10月先后两次因甲状腺癌接受了甲状腺癌切除加颈部淋巴结清扫术。病理报告示甲状腺乳头状腺癌。术后曾接受 3次131I治疗 (剂量分别为 3 7× 10 9、7 4× 10 9、11 1× 10 9Bq)。 2 0 0 0年 3月复查 ,头颅及颈部CT平扫加增强检查均未见明显异常。 2 0 0 0年 11月复查 ,外院颅脑磁共振(MR)平扫加增强检查示 :左侧顶叶见一大片异常信号影 ,大小约 3 5cm× 3 7cm。左侧额叶见两个小异常信号影 ,较大者约 0 5cm× 0 7cm ,结合临床考虑脑内多发性转移瘤。随后在外院接受 1次全脑外照射治疗。2…     

穿龙薯蓣高产栽培技术研究

主要通过穿龙薯蓣(Dioscoreanipponica)的栽植密度试验及栽植深度试验,用方差分析及多重比较的方法来寻找穿龙薯蓣高产栽培技术。经过试验分析,最佳栽植密度为20cm×50cm,最适栽植深度为5cm～10cm。     

绞股蓝组培苗栽培试验研究

在广西植物研究所试验场进行绞股蓝[Gynostemma pentaphyllum(Thunb.) Makino]组培苗栽培试验。试验以5个不同的绞股蓝类型(880 1、880 2、880 3、880 4、880 5 )组培苗和扦插苗分别按小区为单位进行栽培。每小区面积为6 .6 7m2 ,种植5 6株,株行距30 cm×4 0 cm,重复3～4次。观察绞股蓝组培苗的成活率和物候期,测定组培苗的生长量、产量以及绞股蓝皂甙的含量,筛选绞股蓝组培苗的最佳栽培密度。结果表明,绞股蓝组培苗的成活率为10 0 % ,物候期与扦插苗相同;组培苗绞股蓝皂甙含量为1.2 5 % ,与扦插苗的皂甙含量(1.3% )相似;适当密植可以提高绞股蓝组培苗单位面积产量,以行株距30 cm×4 0 cm为最佳;不同类型的组培苗产量不同,每小区鲜草产量8.2 7～2 0 .5 0 kg,以880 4类型产量最高。     

铊的环境生态迁移与扩散

报道某含铊黄铁矿矿石和各工艺过程产物中铊的含量和分布 ,各类矿石中铊含量范围 10 .0～ 5 6 .4× 10 -6;尾砂矿中铊含量约 5 0× 10 -6;炉渣中铊含量范围 2 1.7～ 4 5 .4× 10 -6;炉灰中铊含量 30 .2～ 6 8.1× 10 -6;矿区山泉水中铊含量 0 .35～ 7.86× 10 -9;选矿水中铊含量 4 .82× 10 -9;自来水中铊含量 10～ 30× 10 -12 ;硫酸厂解析水中铊含量5 5 .2～ 4 5 0× 10 -9;炉尘冲洗水中铊含量 17.1～ 37.9× 10 -9;炉渣冲洗水中铊含量 4 .2 2× 10 -9;排放水中铊含量 9.30～ 2 1.6× 10 -9.根据这些数据 ,讨论了铊在自然环境中的迁移、转化、扩散过程和生态污染 ,提出了在含铊矿产资源利用过程中 ,必须高度重视铊的环境污染效应和后果 ,采取必要的预防污染措施 ,同时应积极开展治理技术研究 .     

带蒂胸大肌肌皮瓣在大型口腔颌面部缺损修复中的应用

目的:探讨带蒂胸大肌肌皮瓣在口腔颌面部恶性肿瘤术后大型组织缺损的修复方法及治疗效果.方法:11例应用带蒂胸大肌肌皮瓣一期修复口腔颌面部大型组织缺损,其中舌癌5例,牙龈癌2例,口底癌2例,颊部肉瘤1例,口咽癌1例,肌皮瓣面积为5cm×6cm～8cm×9cm.结果:10例胸大肌皮瓣全部成活,1例部分皮瓣坏死,11例均获得满意的外观,10例功能良好.结论:带蒂胸大肌肌皮瓣能满足口腔颌面部大面积缺损的修复,而且安全、可靠、成活率高.     

水稻大垄双行栽培技术的初步研究

采用大垄双行(40+2)cm×(10～14)cm 插秧规格与通常30cm×(10～14)cm 插秧规格进行对比试验,通过田间调查和室内考种,研究了水稻对光能的利用率,通风状况、分蘖量、叶面积系数等诸方面对水稻产量的影响.从试验结束分析得出,大垄双行通风好,早衰不重,光能利用率高,抗倒伏性强,产量增产幅度一般在12%左右,大大提高了水稻产量.     

荸荠试管苗在生产中的应用研究

荸荠(Eleocharistuberosa)试管苗在1/2MS诱导生根培养基中,生根整齐,根系发达、粗壮,生根率95%以上,移植炼苗成活率90%～95%。大田应用示范表明,幼苗田间定植早茬行株距80cm×70cm,中茬行株距80cm×60cm,晚茬行株距70cm×60cm为佳,其分蘖分株数,株型、株高超过常规苗,商品果率比常规苗提高20%以上。     

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.     

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.     

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.     

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.     

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。     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the