360例咽异感症患者临床分析

目的：探讨360例咽异感症患者的常见病因及治疗方法。方法：对360例患者除行耳鼻咽喉常规检查及鼻咽纤维喉镜检查外，根据患者具体情况分别行相应物理检查以及相关治疗。结果：3608例咽异感症患者中，共诊断出慢性咽喉炎，胃食管反流病，鼻窦炎等多种疾病；所有患者均根据病因进行治疗，随访3月以上，有效率达82．5％。结论：咽异感症的病因较多，只有查清病因，对症治疗，才能取得满意的效果。     

癌症的预防与自然疗法3影响癌症发生的因素(下)

七、慢性疾病因素人体疾病属慢性病的种类很多，一些慢性疾病本身就是癌前病变的疾病，而有的却是导致癌发生的病因基础。因此，对某些慢性疾病要密切注意观察其病情的发展，及时进行防癌的检查。1.癌前病变的慢性疾病有些慢性疾病很容易恶变为癌症。例如结肠息肉、女性乳腺小叶增生、女性外阴白斑、慢性萎缩性胃炎、长期不愈合的胃溃疡，如伴有肠上皮化生者，其癌前病变明显增加。2.发生癌变的生物学病因基础的慢性疾病有些慢性病变、疾病本身就是发生癌变的生物学病因基础。例如乙型病毒型肝炎、肝硬变等慢性肝病，都有肝细胞的损害与增生…     

70例老年巨幼细胞贫血病因分析

1　临床资料70例患者中男 42例 ,女 2 8例 ,其临床表现和血液学改变均符合《血液病诊断及疗效标准》 ,在确诊巨幼细胞贫血后 ,所有病例均予胃镜或肠镜检查 .老年巨幼细胞贫血与消化道疾病及摄食密切相关 .由于摄入不足造成贫血的 2 5例 ,吸收不良 40例 ,其中胃大部分切除或全胃切除史 1 9例 ,8例有慢性萎缩性胃炎 ,4例伴有肠上皮化生 ,5例为小肠肿瘤 ,2例为急性非淋巴细胞白血病 (Ｍ2ｂ型 ) ,2例有慢性胰腺炎病史 .药物影响 5例 ,其中 4例因有风湿、类风湿疾病长期服用秋水仙大碱等抗风湿药物 ,1例有癫痫长期服用苯巴比妥类药物 .2　讨　　…     

保定地区1617例遗传咨询者外周血染色体核型分析

为探讨保定地区遗传咨询者染色体异常核型类型及检出率，并分析染色体异常与临床表型之间的相关性，选取2018年1月至2021年10月在保定市妇幼保健院就诊的1 617例遗传咨询者作为研究对象，采集外周血进行淋巴细胞培养，常规方法制备染色体，G显带后进行染色体核型分析.共检出异常核型54例，异常检出率为3.34%,包括数目异常14例(25.93%)和结构异常40例(74.07%).异常检出率最高为智力低下组(28.21%),主要见于21-三体；其次是发育异常组(26.31%),主要见于特纳综合征；不良孕产史组是构成遗传咨询的主要原因，异常检出率为2.40%,主要见于平衡易位和罗氏易位；不孕不育组异常检出率为2.64%.保定地区遗传咨询者染色体异常是导致不良孕产史、不孕不育、发育异常、智力低下等疾病的重要原因之一，应着重对此类患者进行外周血染色体检测，以寻找病因、指导优生优育、提高保定地区人口素质.     

阻止异常基因蛋白的帕金森氏症疫苗

一项针对帕金森氏症的疫苗在对小鼠的试验中取得了显著疗效。雷维体症是异常基因蛋白在大脑中大量形成，使人体表现出不同类型的神经错乱体症．其中最为常见的是帕金森氏症，它是因大脑神经受到损害而致使行动受阻，并伴随不停颤动症状的疾病。医学研究人员指出：部分人因遗传基因易于患这种病；另一种诱发病因是体内环境的毒素长期积累。无论是何种原因，现在医学工作者们还缺乏对雷维体症及帕金森氏症十分有效的治疗。许多实验研究证实．关键是增强人体自身的免疫力去抵制异常蛋白基因的形成．这是获取理想治疗效果的方向。     

甘肃武威市胃癌危险因素病例对照研究

选取甘肃省武威市494例胃癌病人并按性别、年龄等为配比条件，选取该市988名健康人群进行1：2配对的病例对照研究。Logistic条件回归分析表明，长期饮用地表水、食用腌菜、肿瘤家族史、胃慢性疾病史等与胃癌发生存在显著正关联．胃慢性疾病史、不良饮食习惯及肿瘤家族史可能是胃癌的危险因素．     

长期素食营养对老年人健康的危害及防治

老年长期素食，导致一些营养素缺乏和营养不良对身体健康的危害，是引发各种疾病诱因之一．阐述了膳食结构、饮食均衡、对症分析及防治的重要性．     

健脾和中汤治疗慢性胃炎

慢性胃炎是指不同病因引起的胃粘膜的慢性炎症或萎缩性病变，其实质是胃粘膜上皮遭受反复损害后，由于粘膜特异的再生能力，以致粘膜发生改建，且最终导致不可逆的固有胃腺体的萎缩，甚至消失，是一种常见病和多发病，其发病率在各种胃病中居首位，严重影响到了患者，尤其是基层患者的生活、生产活动。     

扁桃体术后出血的防治体会

慢性扁桃体炎是临床上的常见病 ,因其反复发作 ,形成病灶 ,不仅给患者带来痛苦 ,还常导致多种疾病发生 ,如心血管疾病、肾病、阑尾炎、胆囊炎等。在儿童时期 ,不但因慢性扁桃体炎引起发病机会增多 ,而且影响身体发育。治疗慢性扁桃体炎的最佳方法是手术切除 ,其手术的适应症与禁忌症 ,对有经验的耳鼻喉科医师并不困难 ,但手术后出血却难以预料。我科近十年来统计施行扁桃体手术 2 2 9例 ,出血 7例 ,占手术患者的 3 % ,全部发生于剥离手术患者 ,现对扁桃体术后出血的防治谈谈体会。1　出血原因　根据临床观察 ,扁桃体术后出血大多数为原发型 ,出血发生在术后2 4小时以内。此外 ,以下几方面的原因也容易导致出血 :1 1　操作问题 :一般情况下操作并不困难 ,但一些炎症反复发作的病例 ,腺体与被膜及周围组织发生粘连 ,剥离时损伤周围血管造成出血。1 2　药物问题 :术中应用肾上腺素后使周围血管呈反应性扩张导致出血。1 3　手术适应症的选择问题 :如气管炎患者术后剧烈的咳嗽导致血管破裂出血 ;年龄较大的患者动脉硬化 ,血管收缩不良 ;急性炎症期周围组织呈充血状态。1 4　凝血机制问题 :如有出血倾向的某些疾病等。继...     

类风湿关节炎及其诊治

类风湿性关节炎是一种以关节病变为主的慢性全身性疾病,患者以青壮年人为多,且女性多于男性。类风湿性关节炎的主要临床表现为:早期多有游走性关节肿痛和功能障碍,晚期则出现关节僵直、畸形,骨质改变和骨骼肌萎缩而丧失劳动能力。由于本病的病情缠绵且反复发作,往往给患者造成终身残废等严重不良后果。目前,关于类风湿性关节炎病因尚无定论,临床上存在治疗困难和致残率高     

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.     

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.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

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