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positive testing
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     If CaCl2 and O2.- were exposed to cell bath, large amplitude channel activity was shown. In positive testing potential voltage, the activated channel conductance was 15.74±5.46ps(n=8); In negative testing potential voltage, the channel conductance was 48.32±8.67ps(n=6).
     此时再用O2.-作用于细胞 ,通道被激活 ,通道电导增大 ,在正测试电压时为15.74±5.46ps(n=8) ,在负测试电压时为48.32±8.67ps(n=6)。
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  “positive testing”译为未确定词的双语例句
     Conclusion The false negative rate was nearly 17% when anti-HCV was tested with single ELISA in HCV infectors. The positive testing rate of HCV infection was increased remarkably when ELISA and RT-nPCR were tested simultaneously.
     结论单独用ELISA法检测抗-HCV约有17%的漏检率,同时用RT-nPCR检测HCVRNA,可明显提高HCV感染者的阳性检出率。
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     The results showed 29 gross lesion positive (96. 6% ), 22 acetowhite-positive areascrapings (73. 3%), 21 acetowhite-negative area scrapings (70% ), and 18 urethral swabs have positive testing for HPV DNA (60% ).
     结果:CA临床皮损HPV29例阳性,阳性率96.60%,醋酸白试验阳性的非皮损区HPV22例阳性,阳性率73.3%,醋酸白试验阴性的非皮损区HPV21例阳性,阳性率70%,尿道拭子HPV18例阳性,阳性率60%。
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     Among the ten cases of the primary hepatic carcinoma with AFP negative,the positive testing results were obtained: CEA two cases(20%), CA-50 nine cases(90%) and CA-199 eight ones(80%).
     在原发性肝癌AFP阴性 10例中 ,血CEA值增高 2例 (2 0 % ) ,血CA -5 0值增高 9例 (90 % ) ,血CA -199值增高 8例 (80 % )。
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     The Determination and Prejudgment of Hypertention Pregnancy by MABP Positive Testing Method and the Value of Prophylaxic
     平均动脉压测定阳性在预测妊高征的发生及预防性治疗中的价值
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     This essay, firstly, makes an positive testing on the efficiency of the current stock market between the mainland and Taiwan, which indicates that the efficiency of the stock market between the mainland and Taiwan is of weak form and still not arriving at the semi-strong efficiency.
     本文首先对两岸目前证券市场的效率进行了实证检验,结果表明两岸证券市场已达到弱式效率,并做出了两岸证券市场还没有达到半强式效率的判断。
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     TESTING
     试验
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     Testing has positive and negative effect on teaching.
     测试对教学有可能产生积极的或消极的反拨效用。
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     The clinical significance of Histamine-positive skin prick testing
     点刺皮肤试验的组胺阳性对照及临床意义
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     when testing the G.
     在对ITU-T提供的G.
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     HBsAb was positive;
     抗-HBs阳性;
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  positive testing
A positive testing pressure coupled with the application of liquid soap solution permitted direct observation of air permeation as bubbles.
      
Even if young patients do not completely fulfill the required criteria, Sj?gren's syndrome can be assumed or confirmed in the presence of positive testing for oral and ocular manifestations and recurrent salivary gland enlargement.
      
Serum levels of COMP and C-reactive protein (CRP) were measured in 12 patients with highly active RA (Steinbrocker stages II-IV) and in 5 patients with highly active reactive arthritis (ReA) (positive testing for HLA-B27) before starting daily IST.
      
The recombinant nucleocapsid-based test was able to detect 15 more positive-testing pigs than the PCV2-based IFA.
      
The Table provides the results for the 35 patients with positive testing for a prothrombotic disorder.
      
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The Chinese drug Hai-Chou-Chang-Shan (Clerodendron tnchotomum Thumb.) belongs to family Verbenaceae which has been used as a sedative and antihypertensive drug. From the aqueous extract of its leaves, we have succeeded in isolating three crystalline components. The component (Ⅰ) was obtained in light yellow needles, C_(27)H_(26)O_(17)·3(1/2)H_2O, m.p. 215℃ (decomp.), yield 0.5%. Its U.V. absorption showes λ_(max) 270, 341 mμ, I.R. spectrum v_(CO) 1660 cm~(-1), v_(COOH) 1730 cm~(-1). It gave positive reactions...

The Chinese drug Hai-Chou-Chang-Shan (Clerodendron tnchotomum Thumb.) belongs to family Verbenaceae which has been used as a sedative and antihypertensive drug. From the aqueous extract of its leaves, we have succeeded in isolating three crystalline components. The component (Ⅰ) was obtained in light yellow needles, C_(27)H_(26)O_(17)·3(1/2)H_2O, m.p. 215℃ (decomp.), yield 0.5%. Its U.V. absorption showes λ_(max) 270, 341 mμ, I.R. spectrum v_(CO) 1660 cm~(-1), v_(COOH) 1730 cm~(-1). It gave positive reactions with ferric chloride, Mg+HCl, and ZrOCl_2. It is soluble in diluted solution of sodium bicarbonate and sodium hydroxide in yellow colour, slightly soluble in methanol, ethanol and 60% acetic acid but insoluble in ether and other organic solvents. From its physical and chemical properties, it has been shown to be a new flavonoid compound, and, therefore, it is named clerodendrin. On hydrolysis with hydrochloric acid, the clerodendrin gave an aglycone, light yellowish needle crystals and a sugar portion. The aglycone has a m.p. 347℃ (decomp.) and a triacetate, m.p. 182℃ was obtained. The aglycone was lastly identified as apigenin and no depression of melting point was observed when mixed with an authentic sample. By paper partition chromatography and colour test, it shows that the sugar part of clerodendrin is glucuronic acid. When clerodendrin was esterified with methanol, a dimethylester m.p. 170℃ was obtained, the clerodendrin, therefore, must carry two carboxyl groups. We also further determined the glucuronic acid quantitatively by acid hydrolysis, and two moles were found. In order to ascertain the position of glucuronic acid, the clerodendrin was methylated with dia2omethane then hydrolyzed a known compound, acacetin, was obtained. From the positive test of ZrOCl_2 which demonstrates that the 5-position in clerodendrin is free, so that it is conclusive that the glucuronic acid must link in the 7-position. Therefore, the structure of clerodendrin has been confirmed to be apigenin-7-diglucuronide. The component (Ⅱ) was obtained in colourless crystals, m.p. 221℃, sweet taste; its acetate melted at 215-216℃. All of these properties were comformed to mesoinositol and its acetate, and no depression of melting point was observed when both were mixed with authentic samples respectively. The component (Ⅲ) is an alkaloid. It was obtained in colourless needles, m.p. 235℃, and gave positively with most alkaloid reagent, but its yield was too low for detail investigation.

海州常山(Clerodendron trichotomum Thumb.)为馬鞭草科(Verbenaceae)植物,其叶有降低血压作用.作者等从叶中分离出一种新黄酮甙結晶,命名为海常素(clerodendrin),分子式C_(27)H_(26)O_(17)·3(1/2)H_2O,熔点215℃(分解),不含甲氧基;从物理化學性貭知属于黄酮甙类.水解后,得甙元分子式C_(15)H_(16)O_5·(1/2)H_2O,熔点347℃(分解),并得三乙酰化物,分子式C_(21)H_(16)O_8,熔点182℃;这二化合物証明为洋芹子素(apigenin)及其乙酰化物.所接糖証明为葡萄糖醛酸.从甲酯的制备及水解后甙元的定量測定,知其含有二分子葡萄糖醛酸,并經証实均連接在7位上.海常素的結构应为(Ⅰ)式.此外还分得熔点为220℃及235℃的二种結晶,前者經鉴定为中肌醇;后者为生物碱,但因量少未进行鉴定.

This report summarized the results of studies on chronic atrophic gastritis (CAG) fromseveral hospitals in Shanghai,which included a survey of etiological factors,histopathologicand ultrastructural studies of gastric mucosa,gastric acid secretory test,fasting serumgastrin determination and augmented protein-meal stimulated gastrin secretion test,andcertain immunological determinations.It was found that acid secretory function correlatedwell with the severity of antral atrophic lesion and intestinal...

This report summarized the results of studies on chronic atrophic gastritis (CAG) fromseveral hospitals in Shanghai,which included a survey of etiological factors,histopathologicand ultrastructural studies of gastric mucosa,gastric acid secretory test,fasting serumgastrin determination and augmented protein-meal stimulated gastrin secretion test,andcertain immunological determinations.It was found that acid secretory function correlatedwell with the severity of antral atrophic lesion and intestinal metaplasia.However,theclassification of CAG could be made according to the acid secretory function test and thedynamic serum gastrin response pattern to a test meal which reflect more correctly thepathophysiological lesion at gastric body and antrum.The enzyme linked immunnassay(ELISA) was more sensitive than immunofluorescent assay (IF) for detection of theparietal cell antibody (PCA).As false-positive test of PCA was frequently found inpatients without CAG,so a positive PCA might only indicate existence of gastric mucosallesion.It was suggested that CAG could be separated into two types,A and B,the latter beingfurther divided into subtypes B_1 and B_2.The prevalence of B type CAG was higher ineast China,and pernicious anemia was rare in patients with A type CAG.

本文综合上海地区部分医疗单位对慢性萎缩性胃炎(CAG)的一些研究资料,包括病因学调查,光学和电子显微镜的病理学观察,泌酸功能的研究,血清胃泌素的测定,以及免疫学方面的一些研究等。调查提示吸烟、饮食不规则、胆汁返流等因素可能和 CAG 的发生有关。指出壁细胞泌酸功能与胃窦的萎缩性变化及肠腺化生程度有关,而按胃酸分泌功能和试餐后血清胃泌素值变化来分型,更能准确反映胃窦和胃体的病理生理。以酶免疫法测定壁细胞抗体(PCA)的阳性率高于免疫荧光法.因 PCA 测定有假阳性,故认为其仅示有胃粘膜的损害,而对 CAG 的诊断并无特异性.本文提出,CAG 可分为 A、B_1和 B_2诸型,在我国华东地区以 B 型为多见.观察发现,我国的 A 型患者临床上很少出现恶性贫血.

Sera from 258 cases of nasopharyngeal carcinoma(158 NPC untreated or treatedwith recurrence and 100 treated without recurrence),45 head and neck cancers,56chronic nasopharyngitis and 179 healthy individuals were tested for IgA antibody to EBvirus capsid antigen.The test was positive in 93.74% of NPC cases irrespective ofTNM status and cell differentiation.None of the 7 nasopharyngeal malignant lymphomacases had positive test.The frequencies of positive test in head and neck cancers...

Sera from 258 cases of nasopharyngeal carcinoma(158 NPC untreated or treatedwith recurrence and 100 treated without recurrence),45 head and neck cancers,56chronic nasopharyngitis and 179 healthy individuals were tested for IgA antibody to EBvirus capsid antigen.The test was positive in 93.74% of NPC cases irrespective ofTNM status and cell differentiation.None of the 7 nasopharyngeal malignant lymphomacases had positive test.The frequencies of positive test in head and neck cancers otherthan NPC,chronic nasopharyngitis and healthy individuals were 37.7%,1.79% and2.23% respectively,and the titers were generally lower than that of the NPC cases.Thus,the test might be of help in diagnosing NPC.Among the 100 cases treated byirradiation without recurrence,the rate of positive test within 5 years was as high asthat of the untreated cases,but declined gradually after 5 years,so that a positive testis not indicative of recurrence of NPC.

本文报道用免疫酶法检测258例鼻咽癌病人血清 VCA-IgA 抗体,阳性率93.74%,几何平均滴度(GMT)78.50,明显高于对照组(头颈部其他恶性肿瘤45例,慢性鼻咽粘膜炎56例,正常人179例).抗体阳性率、GMT 与 TNM 分期、肿瘤大小、淋巴结转移程度、临床发展方向无明显关系,而与病理类型有关。鼻咽癌经放疗后5年以上者,抗体阳性率和 GMT 明显下降,但阳性率仍达78.59%.本法可用于早期诊断和鉴别诊断,但不能作为复发指标,最后确诊靠病理检查.

 
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