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evidence
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    Evidence for Histamine as a New Neurotransmitter in Cardiac Sympathetic Nerve System
    组胺是一种新发现的交感神经递质
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    Genetic Evidence for Plasmid SQP1 Controlling Fertility in Streptomyces qingfengmyceticus
    庆丰链霉菌中SQP1质粒控制致育性的遗传证明
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    Biochemical evidence for genetic relationship between the bisexual and parthenogenetic Artemia in China
    Biochemical evidence for genetic relationship between the bisexual and parthenogenetic Artemia in China
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    NOVEL PHOSPHORYLATION SITES OF EUKARYOTIC INITIATION FACTOR-4E AND EVIDENCE THAT PHOSPHORYLATION STABILIZES INTERACTIONS OF THE P~25 AND P~220 SUBUNITS
    NOVEL PHOSPHORYLATION SITES OF EUKARYOTIC INITIATION FACTOR-4E AND EVIDENCE THAT PHOSPHORYLATION STABILIZES INTERACTIONS OF T
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    The evidence for “RNA world” and its suggestion
    RNA生命起源学说的佐证与思考
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  evidence
We give strong evidence that the analog of finite propagation for the wave equation does not hold because of inconsistent scaling behavior in space and time.
      
We also review spherical wavelet analyses that independently provide evidence for dark energy, an exotic component of our Universe of which we know very little currently.
      
aureus provides scientific evidence for use in skin diseases and toothaches.
      
These findings provide compelling evidence that DNA is the ultimate target of these drugs that act on the human genome.
      
We present a new algorithm, with computational evidence to suggest an expected run-time growth rate belowO(n3).
      
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Sham feeding was performed on esophageal fistula dogs with normal mixed food. The change of blood sugar concentration was followed for 3 hours as an indication of insulin secretion. The results were as follows: (1) After 10-15 minutes of sham feeding, the blood sugar showed marked fluctuations in most of the experiments and a slight decrease in some of the experiments as compared with that in the control experiments without sham feeding. (2) After inactivation of the adrenal medulla(removal of right adrenal...

Sham feeding was performed on esophageal fistula dogs with normal mixed food. The change of blood sugar concentration was followed for 3 hours as an indication of insulin secretion. The results were as follows: (1) After 10-15 minutes of sham feeding, the blood sugar showed marked fluctuations in most of the experiments and a slight decrease in some of the experiments as compared with that in the control experiments without sham feeding. (2) After inactivation of the adrenal medulla(removal of right adrenal and denervation of left adrenal), a marked fall of blood sugar was observed after sham feeding. The lowered blood sugar level maintained for about 2 hours and then returned to normal gradually. (3) The effect in(2) was abolished after injection of hyoscyamine, an atropinelike drug, or by subdiaphragmatic vagotomy. (4) Further observations were made on dogs with denervated pancreas after the inactivation of the adrenal medulla. No fall of blood sugar was also observed after sham feeding. Thus, the fall of blood sugar elicited by sham feeding was produced reflexly through the vago-insulin system. (5) These observations provided a further evidence for the nervous control of insulin secretion and gave rise to a favourable means for studying the significance of the vago-insulin system under natural conditions. We wish to express our gratitude to Comrade for bis valuable advice and to Prof. T. C. Shen for his constant encouragement throughout this work.

本工作用具有食道瘻的狗,用正常混合食物進行假飼,觀察血糖濃度在三小時內的變動,作為胰島素分泌的指標,結果如下: (一)正常假飼後,血糖濃度與不進行假飼的對照實驗比較,呈顯著的波動,有的血糖水平呈降低現象。 (二)取消腎上腺髓質作用後,再進行假飼,血糖濃度呈顯著的下降,並持續約兩小時左右,以後才逐漸恢復,說明取消腎上腺髓質作用後,假飼可引起顯著的血糖降低。 (三)用取消腎上腺體質作用的狗,再應用阿托平類藥物,或切斷其膈下迷走神經後,進行假飼,則不再有血糖降低,這說明引起血糖下降是通過迷走神經的。 (四)當切斷胰腺的一切外來神經後,再將取消了腎上腺髓質的狗進行假飼,血糖水平也不再下降,說明假飼所引起的血糖下降是由於反射性地通過迷走神經,興奮胰島裝置釋放胰島素對機體作用的結果。 (五)這項結果可作為神經因素影響胰島裝置的一個確切的證據,並對於闡明在自然條件下迷走神經—胰島素系統的重要意義,提供了有利的條件。

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with its degree...

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with its degree of reduction, from 1.13 to 1.26. The average ratio of our preparations is 1.23. (3) The absorption spectra(230-600 mμ) of oxidized and reduced cytochrome c have been measured. The molecular extinction coefficient at 550 mμ of oxidized, 0.43% iron, cytochrome c is 0.80×10~4. This value differs considerably from that reported in the literature. (4) Some enzymic properties of cytochrome c containing 0.43% iron are compared with those of a preparation containing 0.34% iron and are found to be identical. Both can be converted into''endogenous" cytochrome c. (5) Whether pure cytochrome c contains more than 0.43% iron has been discussed. It seems that no convincing evidence has been presented to show that cytochrome c preparations with iron content higher than 0.43% as obtained by some workers do not contain a small amount of iron-rich impurity.

(一)用陽離子交换劑(synthetic zeolite)直接吸附高等動物心肌抽提液一次,並用3.84M硫酸銨作洗脫劑,即可製得含鐵量0.43%的細胞色素c。因此提供了一個大量製備純細胞色素c的簡單方法。 (二)含鐵量0.43%的細胞色素c,它的550mμ和278mμ光密度的比值,視產品的還原程度而定,其範圍從1.13到1.26,我們所製得的產品,其比值在1.23左右。 (三)我們测量了氧化及還原的細胞色素c(含鐵0.43%)從230mμ到600mμ的吸收光譜,並發現和前人所報告的略有不同。氧化細胞色素c在550mμ的消光係數為0.80×10~4,此值與文獻上的數值相差很多。 (四)我們比較了含鐵量0.43%的細胞色素c和含鐵量0.34%的細胞色素c的一些酶性質,證明他們是相同的;並且兩者都可以變成“內源”細胞色素c。 (五)我們認為現有的實驗證據不足以說明純細胞色素c的含鐵量大於0.43%。

1. Les cellules dc la glande thyroide du cobaye (Cavia cobaya), du singe(Maccacus sinensis) et du chien (Canis familiars) ont ete etudices. Nous avons fait des observations vitales sans coloration, ou avec coloration du rouge ncutrc ou du cresyl bleu brillant. L 'examen vital montrc des elements petits, isoles, spheriques, peu refringcants, qui paraissent remplis d' une substance differente par sa constitution et son etat physique du reste du cytoplasme. Ces elements sont colores en rouge intense dc facon bomogene...

1. Les cellules dc la glande thyroide du cobaye (Cavia cobaya), du singe(Maccacus sinensis) et du chien (Canis familiars) ont ete etudices. Nous avons fait des observations vitales sans coloration, ou avec coloration du rouge ncutrc ou du cresyl bleu brillant. L 'examen vital montrc des elements petits, isoles, spheriques, peu refringcants, qui paraissent remplis d' une substance differente par sa constitution et son etat physique du reste du cytoplasme. Ces elements sont colores en rouge intense dc facon bomogene par le rouge ncutrc, ou en bleu violette par le cresyl bleu brillant, Ils se sont groupes dans la partic superieure du cytoplasme, surtout au pole apical du noyau. Nous repor-tant aux resultats de Von Mollendorff, surtout dc Parat et son ecole, et aussi de Baker (Ecole d'Oxford) sur la cellule animale et a eux de P. A. Dangcard, de P. Dangea -rd, de Guillermond sur la cellule vegetale, nous n' avons pas a hesiter a conclure a la nature vacuolaire de ces elements: il s'agit d'un systeme vacuolaire: le "vacuome" que nous avons alis en evidence, pour la premiere fois, dans les cellules vivantes de la glande thyroi de des mammifcrs.2. Toutes les techniques classiqucs dc la mise en evidence de l'apparcil de Golgi ont ete utilisees. Toutes les impregnations metalliques, quaud elles sont bicn reussies, donncnt des resultats concordants avec 1' examen vital: l' P impregnation "in toto" des elements du vacuomc. L' appareil est, en effct, constitue d' elements spheriques, isoles, bion individualises, et qui occupent la meme disposition du vacuome. L' aspect normal d' un de ces elemcuts de l' appareil est celui d' un dictyosomc classique avec toutcs les deformations artificielles possibles (par exemple, dictyosomes plus ou moins anas-tomises, ou sous forme de series dc perles) que nous connaissons depuis l'ctudc classi- quc du chironomus (Parat 1924) et d' autrcs cellules glandulaires (Parat 1928, Covell et scott 1928, Feycl 1928, Ouang Teyio 1929, 1932, Yung ko-ching 1932, Baker 1944, 48, 49, ect ect,) et aussi d' autres eellules somatiques et scxuelles. (Parat-Baker et leur Ecole).3. L' appareil de Golgi n' cxiste pas dans les cellules vivantes dc la glandc thyroi-de des mamnuiferes, comme il n' cxiste pas dans d' autres cellules vivantes animales, L' appareil de Golgi sous forme d' un fin et grele reseau situe au pole apical du noyau dc ccs cellules (Turchini, Cowdry, Bensley, Okkcis, wahlberg, Thomas, Ludford, Cramer) est un "artefact" qui proyient de I'impregnation plus ou moins imparfaite du chondriome pcrivacuolairc.4. Les resultats que nous avons obtenus apportent une nouvclle confirmation, aux idees exprlmecs par Parat et son ecole sur la theorie du Vscuome, et par Baker et son ecole sur "The Golgi artifact theory".

(1)在豚鼠、弥猴及犬的甲状腺活细胞内,存在着一个典型的液泡系,它的形态、构造,以及明显的极性,和其他一切动物细胞内的液泡系完全相同,一方面可以被中性红染成红色,或被亮焦油蓝染成蓝柴色;另一方面,可被金属盐类浸染成为黑色的高尔基, (2)液泡系被金属浸染成为高尔基体时,形态可以各有不同:圆形独立的小泡状,颗粒状念珠状,完全看固定时,液泡是否被完全保持原来形状,或者多少被损坏的程度深浅而定. (3)在脊椎动物甲状腺细胞内,除了液包系和线粒体系外,并没有一种独立存在的高尔基体,

 
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