rta 中文意思是什麼

rta 解釋
阿爾及利亞廣播電視臺
  1. In order to reach the substrate ( ribosomes ), rta must translocate into the cytosol

    Rta的毒性非常強：生理狀態下，一分子的rta一分鐘內能催化脫去1000 - 2000個腺嘌呤分子。
  2. Product information : bar stools, chairs, dinette sets, kitchen stools, rta furniture, wooden stools

    主營產品:酒吧凳子，椅子，小餐室的餐桌和椅子，廚房凳子，和木製凳子等傢具。
  3. Product information : bar stools, chairs, dinette sets, folding furniture, kitchen stools, lifestyle furniture, rta furniture, tables, wooden stools

    主營產品：主要經營椅子，凳子，小餐室桌椅，可折疊傢具，廚房用品，生活傢具，餐桌和木製椅子等傢具
  4. Product information : chairs, children ' s furniture, coffee tables, dinette sets, home office furniture supplies, microwave carts, rta furniture, serving carts, tables, utility carts

    主營產品:主要經營傢具，如:椅子，兒童傢具，咖啡桌，小餐室套具，辦公傢具，微波爐等
  5. In this paper, the flow pattern defects ( fpds ) were revealed by secco etchant and their shape, distribution on wafer and tip structure were studied in details by optical microscope and atomic force microscope ( afm ). the relationship between etching time and the tip structure of fpds was also discussed. furthermore, by studying the effect of rapid thermal annealing ( rta ) on the density of fpds in ar, the annihilation mechanism of fpds was discussed in this paper

    本文將cz硅單晶片在secco腐蝕液中擇優腐蝕后，用光學顯微鏡和原子力顯微鏡對流動圖形缺陷（ flowpatterndefects ， fpds ）在矽片中的形態、分佈及其端部的微觀結構進行了仔細地觀察和研究，並討論了腐蝕時間對fpds缺陷端部結構的影響；本文還通過研究ar氣氛下快速退火（ rapidthermalannealing ， rta ）對fpds缺陷密度的影響，初步探討了fpds的消除機理。
  6. Adopting ni / si and tin / ni / si structure, the nisi film on the < 100 > si substrate by the means of rta has been demonstrated in detail

    文中詳細的闡述了採用ni si和tin ni si結構通過rta在硅單晶< 100 >襯底上制備nisi薄膜的方法。
  7. Our goal is to express the ricin a chain ( rta ) and its modification rta - kdel ( er - retrival signal ) in escherichia coli

    本論文旨在研究蓖麻毒素a鏈蛋白（ rta ）及其修飾體rta - kdel （內質網保留信號肽）在大腸桿菌中的表達。
  8. The cytotoxicities of rta and the fusion toxin rta - yqrl were measured by the mtt assay in hela, skov - 3, and wish cells following fluid - phase endocytosis. [ methods ] 1

    因為rta可與f3ga發生特異性結合，我們用bule一sepharose一6b柱對rta和rta一yqrl蛋白分別進行親和層析純化。
  9. It is toxic for most mammalian cells since ricin a chain ( rta ) is an rna specific n - glycosidase that removes a specific adenine residue in a highly conservative region from among over 4000 nucloside residues present in 28s rrna, and causes protein synthesis inhibition and cell death

    Rta具有n -糖苷酶活性，可催化28srrna在4234位脫去腺嘌呤，使核糖體60s亞基失活，從而抑制蛋白質合成，導致細胞死亡。 b鏈（ rtb ）是結合鏈，能和細胞表面半乳糖受體結合，協助a鏈進入細胞內。
  10. Ricin a chain ( rta ) is an active chain and has specific n - glycosidase activity, which excises a specific adenine residue ( a4324 in rat ) from a highly conserved loop of 26 or 28s rrna in 60s ribosomal subunits. this cleavage of adenine can lead to the disruption of ribosomal function, thereby, inhibits the protein synthesis and then cause the death of cells

    A鏈是活性鏈，具有n -糖苷酶活性，可催化切斷真核生物60s亞基28srrna中第4324位腺嘌呤與核糖分子之間的糖苷鍵，使其脫去一個腺嘌呤，使核糖體60s亞基失活，從而抑制蛋白質的合成。
  11. These high - k materials degraded to silicide island at temperatures of higher than 950. these results are consistent with rta samples

    在950加熱后， high - k物質將熱降解為hfsi 。各樣品在加熱過程中的變化與其在rta處理后的結果是一致的。
  12. The newer red cars that usually travel those routes were severely damaged by floodwaters and are not in service. the new orleans city council had to pass an ordinance allowing the rta to move the older green cars, which date back to the 1920s, to the new routes

    由於此前行駛的紅色有軌電車在洪水中損壞嚴重，目前還不能正常運行，新奧爾良市政委員會此前批準運輸管理局將老式的綠色電車重新「披掛上陣」 。
  13. Ricin toxin has wide - range anti - tumor spectrum. however, because rta has no selectivity, it can damge normal ce lls too. these years, ricin and it ' s a chain ( rta ) have been used to conjugate with monoclonal antibody to prepare immunotoxins ( its )

    近年來，蓖麻毒a鏈可以與單克隆抗體相交聯而制備免疫毒素（ immunotoxin ， it ） ，免疫毒素既具有強大的腫瘤殺傷作用，同時又有抗體的特異性，可以將毒素分子靶向運送到腫瘤細胞，以減少對正常細胞的損傷。
  14. In previous studies, we reported construction of expression vectors of rta and its mutants

    Rta和rta - kdel表達質粒的構建，由詹金彪於1998年完成。
  15. A single molecule of rta is able to depurinate 1500 - 2000 ribosomes per minute. ricin b chain ( rtb ) is a galactose - specific lectin which binds to the receptors on cell surfaces, and may enhance rta translocation by forming a pore in the membrane of intracellular organelles. ricin enters the cells by receptor - mediated endocytosis

    內吞進入細胞的蓖麻毒素一部分返回到膜表面，一部分經早期內體至晚期內體，最後在溶酶體中降解，只有一小部分約5到達高爾基體，隨后逆轉運到粗面內質網，在那裡rta才和rtb解離，游離出有催化活性的rta 。
  16. Because expressed in escherichia coli, ricin a chain is not degraded easily for its non - glycosylation. our experiments lay a foundation for the researches that rta conjugates a monoclonal antibody to synthesize immunotoxins and the immunotoxins are used for cancer - targeted therapy

    蓖麻毒素a鏈在大腸桿菌中表達，因無糖基化修飾，克服了進入體內后被迅速降解的缺點，為進一步與單鏈抗體基因嵌合表達形成單鏈免疫毒素，對腫瘤細胞進行導向治療研究奠定基礎。
  17. In this work, the influences of fabrication process on microstructure, dielectric properties, ferroelectric properties and pyroelectric properties of plt films have been studied. plt films were prepared on the pt ( 111 ) / ti / sio2 / si ( 100 ) substrates by radio frequency magnetron sputtering method and then annealed by rapid thermal annealing process ( rta ) or conventional furnace annealing process ( cfa ). with the help of atom force microscopy ( afm ), x - ray diffraction ( xrd ) and some other apparatus, it was found that : lower substrate temperature ( ts ) was helpful for plt films to form better surface morphologies. with the increase of substrate temperature, the dielectric constant of plt films increased

    Afm 、 xrd以及性能測試結果表明:較低的基片溫度有利於形成表面均勻緻密的薄膜，且薄膜的表面粗糙度均方根較小;隨著基片溫度的升高，經過快速退火的plt薄膜的介電常數逐漸增大;相比于傳統退火，快速退火縮短了退火時間，提高了薄膜的介電和鐵電性能;快速退火隨著保溫時間的延長，大部分鈣鈦礦結構的特徵峰的峰強增大，半高寬減小，峰形越來越尖銳，但當保溫時間為80s的時候， （ 100 ）和（ 110 ）峰的強度有所下降，因此保溫時間在60s較為適宜。
  18. It is known from studies using brefeldin a ( bfa ) that disruption of tgn can block the cytotoxicity of ricin, suggesting that the intracellular compartment may be an important part of the uptake pathway. ricin enters the cells by receptor - mediated endocytosis, followed by translocation across the membranes of intracellular organelles. in this study, a trans - golgi retention peptide signal yqrl was fused to the c - terminus of ricin a chain ( rta ) by polymerase chain reaction

    本實驗為重點研究反式高爾基體在毒素細胞內轉運過程中的作用，我們設計了一個反式高爾基體的靶向信號肽基因yqrl （ tyr - gln - arg - leu ）連接在rta分子的羧基端，用原核表達蛋白體系，純化並測定rta - yqrl與rta蛋白對hela （人宮頸癌細胞） ， wish （人羊膜上皮細胞） ， skov - 3 （人卵巢癌細胞）三種細胞的毒性作用。
  19. Many rta workers, including cook, are living on a cruise ship docked at the riverfront after their homes were destroyed by katrina ' s winds aug. 29 and subsequent flooding

    許多新奧爾良運輸管理局的職工，包括羅莎琳德本人，目前都暫住停泊在河岸旁的一艘客輪上。
  20. Sluggish progress in multilateral trade negotiations under the doha development round appears to have accelerated further the rush to forge rtas. rta activities have intensified across all world regions particularly in the western hemisphere and asia - pacific. the development of rtas is driven by a variety of factors which include economic, political and security considerations

    區域貿易協定的發展，既有正面意義又有負面影響，同時還引發了幾個復雜的、也是多邊貿易體制急需解決的問題，如原產地規則問題、復雜的雙邊特惠關系以及如何協調區域貿易協定與多邊貿易體制的關系等。
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