珍珠滴眼凝胶的渗透压测定

目的:探讨全自动冰点渗透压计测定珍珠滴眼凝胶渗透压值方法的可行性和准确性.方法:使用全自动冰点渗透压计测定珍珠滴眼凝胶的渗透压值,并对其制备及稳定性考察过程中的渗透压值进行监控.结果:该制剂渗透压值符合眼用制剂的要求,经过长期室温留样试验和加速试验,渗透压值没有明显变化,表明该制剂质量稳定.结论:该方法简便、快速、实用,可作为珍珠滴眼凝胶渗透压检测的手段.     

等渗、高渗、低渗溶液与人体健康

人体内充满了溶液,如细胞液、组织间液、血液、各种腺体的分泌液等.不同浓度的溶液具有不同的渗透压.在正常情况下,人体各处的渗透压是相对稳定的,如37℃时血浆渗透压为770kpa .渗透压的相对稳定,才能使人体各种组织细胞形态正常,内环境才能保持稳定,人体才能保持健康.若人体不同部位的渗透压发生变化,形成高渗、低渗溶液,将会对人体健康产生影响.     

下丘脑在生命活动调节中的作用

一、下丘脑的作用./感受:渗透压感受器感受渗透压升高。0/分泌:在渗透压升高时分泌抗利尿激素,在外环境温度低时分泌促甲状腺激素释放激素。1/调节:!体温、血糖、渗透压的调节中枢;"调节其他内分泌腺的激素合成和分泌。2/传导:渗透压感受器产生的兴奋传到大脑皮层,使之产生渴觉。     

下丘脑在生命活动调节中的作用

一、下丘脑的作用 1．感受：渗透压感受器感受渗透压升高。2．分泌：在渗透压升高时分泌抗利尿激素，在外环境温度低时分泌促甲状腺激素释放激素。3．调节：①体温、血糖、渗透压的调节中枢；②调节其他内分泌腺的激素合成和分泌。     

严重创伤后血渗透压变化及其临床意义

目的:观察严重创伤患者血液渗透压及血渗差变化对临床转归的影响。方法:应用FM-6型全自动冰点渗透压计时50例ISS值16～75分平均25.1±13.3分的创伤患者进行了165次血清渗透压测定。结果:存活组37例血渗均值286.4±10.7毫渗量/公斤水,血渗差均值13±8.1毫渗量/公斤水;死亡组13例血渗均值357.2±44.3毫渗量/公斤水,血渗差均值55.8±35毫渗量/公斤水,死亡组明显高于存活组(P<0.001)。且血渗值超过350毫渗量/公斤水者8例和/或血渗差超过40毫渗量/公斤水者7例均死亡。结论:血清渗透压测定快速简便,可作为创伤患者的伤情诊断、治疗及预后判断的有用方法。     

水盐平衡及肾小管的重吸收作用

水盐平衡与肾小管的重吸收作用在高中新课标中有所体现,内容介绍比较简单,而这方面内容较为复杂,在高考中也有所考查。1.水盐调节的基本过程说明:图解中抗利尿激素、肾小管集合管重吸收水、尿量之间的+一做增加(对水的重吸收)、减少(尿量)解释。细胞外液渗透压升高、下丘脑中的渗透压感受器、细胞外液渗透压下降之间的+一做增强(对下丘脑中的渗透压感受器刺激)、减弱(对下丘     

改进型渗压仪的研制与实验室应用

为了提高渗透试验的效率和精度,发挥实验教学中学生的主观能动性,设计出一款改进型渗压仪。该仪器基于岩土工程实验室常用QY1-3型渗压仪,采用GDS控制器加载渗透压力,由JM3811静态应变测试系统采集试样的轴向变形,通过计算机模块控制试验、整理数据。通过与普通渗压仪对某地软黏土渗透性的对比,采用3种先期固结压力和两种渗透压力加载方式,验证改进型仪器的性能。实验结果显示:软黏土的渗透系数随先期固结压力的增大而减小,受渗透压力的影响很小。改进型渗压仪的操作简便,结果可靠、精度高,测量时间短,功能多样化,不但能满足科研和教学需要,同时提高了测试效率和学生动手操作能力。     

鲫鱼,金线蛙及家鸭血清总蛋白,白蛋白及渗透压的比较

鲫鱼、金线蛙及家鸭血清总蛋白、白蛋白及渗透压的比较余文玉曾建军到目前为止，有关鲫鱼、金线蛙、家鸭血清总蛋白、白蛋白及渗透压的研究，国内外资料较少，在有关动物生理资料〔１—３〕中，关于这三种动物三项指标的正常值还未见报道，为了给这三种动物各项生理机能的...     

对渗透压概念的一点异议

“渗透现象和渗透压”,是化学教学中重要的内容,弄清它的概念是很有必要。但是,我国现在发行的供大专院校及中等专业学校使用的教材中有关渗透压概念的内容似有不妥之处。本文提出个人看法,请广大化学教师指教。     

早期鼻饲补液抢救高渗性非酮症糖尿病昏迷

目的:探讨早期鼻饲温开水抢救高渗性非酮症性糖尿病昏迷(HNDC)病人的临床疗效与护理.方法:确诊45例HNDC患者早期鼻饲温开水胃肠内补液,配合静脉输液、微量泵持续静脉泵入胰岛素等治疗,监测血糖、电解质和血浆有效渗透压.结果:撤除鼻饲管时患者的血糖、血钠、血浆有效渗透压较治疗前显著性降低(P<0.01);治愈43例,死亡2例.结论:早期鼻饲温开水胃肠内补液是抢救HNDC的有效措施,能显著降低血浆有效渗透压及死亡率.方法安全、可靠、实用.     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Social and Cultural Influence on Word Meaning

Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.     

汉字倒说

汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.