累積性毒物 的英文怎麼說
中文拼音 [lěijīxìngdúwù]
累積性毒物
英文
cumulative poison- 累 : 累Ⅰ形容詞(疲勞) tired; fatigued; weary Ⅱ動詞1. (使疲勞; 使勞累) tire out; wear out 2. (操勞) work hard; toil
- 積 : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 毒 : Ⅰ名詞1 (對生物體有害的性質或物質; 毒物) poison; toxin 2 (毒品) drug; narcotics 3 (姓氏) a s...
- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 累積 : accumulate累積服刑 [法] accumulative sentence; 累積股本 cumulative capital stock; 累積股息 cumula...
- 毒物 : toxic; toxicant; poison; poisonous substance
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Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time
隨后以這幾種重金屬作為實驗毒物,以鯽魚為實驗動物,應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等,全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響,初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響,為制定漁業生產上預防性的管理措施提供科學依據,及時避免或減輕重金屬污染對水生生態系統造成的損害。Phytoalexins are low molecular weight chemicals that plants produce and accumulate in response to infection especially of fungal origin. sakuranetin is a kind of flavanone phytoalexin isolated from ultraviolet - irradiated rice leaves. recent research work on flavanone phytoalexins represented by sakuranetin is reviewed. interesting novel structures, stucture - activity relationships and synthetic methods are discussed
植物抗毒素是植物受到外界病原微生物侵擾后所產生並積累的一類具有抗菌活性的小分子物質,櫻花素是從水稻稻瘟病感染組織中分離鑒定的一種黃烷酮類植物抗毒素.對以櫻花素為代表的水稻抗毒素及其類似物的結構與活性、黃烷酮類植物抗毒素合成方法的研究概況進行了綜述Exploring the possible mechanisms is an important content of bioinorganic chemistry and ecotoxicology, which has signality in modifying contamination effect to animals. this thesis studies on the chemical speciation of mercury and selenium in dolphin livers, sub - chronic toxic effect of wistar rats of sodium selenite and mercuric chloride and investigates the antagonism mechanism from there aspects : 1. redistribution of mercury in the presence of selenium, 2
本文以海豚肝臟為對象,研究其積累的高濃度汞硒化合物的化學形態和結構,並結合動物實驗的研究,從汞硒相互作用的總體生物學表現,汞硒在動物體內分佈變化和結合形態的變化以及汞硒化合物的結構等方面探討兩元素毒性拮抗作用機理。Because there are a great quantity ' s heterotrophic bacteria in the breeding pool, which will have the repulsion action to the insufficient quantity ' s nitrifier and prevent the nitrification, the situation will bring the accumulating of nitrite which is the middle substance of nitrification in water, the long term accumulated nitrite can debase fish and shrimp ' s disease - resistant and decrease the growth and even die
由於養殖池中存在大量的異養菌,受到異養性細菌排斥,本身無足夠數量的硝化菌,硝化作用往往受阻,結果就會引起硝化作用的中間產物亞硝酸鹽在水體內的累積、亞硝酸鹽長期蓄積會使魚蝦等抗病力降低、生長受阻、嚴重者中毒死亡。The shrimp fry are often unable to adjust to the changes in these levels when they are transferred into ponds. late evening or early morning is the best times to stock the ponds
處理代謝過程中產生的硫化氫及亞硝酸密集飼養蝦池,在某段時間會累積至毒的硫化氫及亞硝酸,特別是在植物性浮游生物相繼死亡時。How usana supplements work due to the unbalanced diet, environment pollutions, chemical additives of the food, the life and work pressure, it makes our bodies having much unknown poisons. with the time past, it kill the healthy cells and organs inside our bodies and make us have chronic diseases of circulatory, metabolism, immune system
由於長期的飲食不均衡環境污染有害健康的食物化學添加劑生活及工作壓力等,讓我們現代人的身體不知不覺累積了許多毒素,這些毒素隨著歲月的增長,正一點一滴的破壞著我們體內的健康細胞及所有的器官組織,使得我們的身體逐漸出現了許多代謝循環免疫系統的慢性疾病。This paper briefly reviews the history and progress of trace metal marine ecotoxicology over the past few decades. three main areas of metal ecotoxicology are transport in the environment, accumulation and toxicity, as well as the risk assessment. we have seen tremendous progresses in these areas as a result of interdisciplinary efforts by biologists, chemists, engineers, governmental regulators and managers. i then discuss the future perspectives of metal ecotoxicology. it is expected that this field will receive increasing attention in china. certainly i hope that xiamen can become a center for metal ecotoxicology and biogeochemistry research
簡要回顧了痕量金屬的海洋生態毒理學研究的歷史及過去幾十年中所獲得的進展.金屬生態毒理學研究主要包括以下3個方向:環境中的轉移,毒性積累及危險評估.在來自於多種學科的專家,包括生物學家,化學學家,工程師和政府監督管理人員等的共同努力下,這3個方向的研究都獲得了長足的發展.同時對金屬生態毒理學的未來進行了展望.可以預見的是,這門學科將在中國受到越來越多的關注.我更希望看到廈門能夠成為未來金屬海洋毒理學發展的中心2 ) effect on contents of mda mda is the product that membrane lipid peroxide and the contents of mda in plants can reflect the degree of the damage that the plants are encountered to some extent. the measurement results show that the accumulation of mda in transgenic tomato were lower than that of the control, which suggested that the cell membrane system was damaged under the low - temperature stresses, meanwhile the transformants suffered the little damage than the control plants
2 )丙二醛含量:丙二醛是膜脂過氧化的產物,它在植物體內含量的高低能夠在一定程度上反映植物受傷害的程度,實驗結果表明轉基因植株體內丙二醛的含量明顯低於對照,說明轉基因番茄在低溫脅迫下有毒物質積累的少,膜脂過氧化程度輕,耐寒性強。Objective : to study the effects of diazepam to the development of the larvae of chrysomya megacephala in different temperature and accumulate the biological data on necrophagous flies in shijiazhuang area, and to help providing scientific data for deducing the postmortem interval ( pmi ) in criminal investigation
目的:了解不同溫度下安定對大頭金蠅生長發育的影響,積累石家莊地區屍食性蠅類在具毒屍體上的發育生物學資料,為刑事調查推斷死後間隔時間( postmorteminterval , pmi )提供科學依據。[ note : in neurodegeneration the main aggregates tend to form in other parts of the cell than the lysosome, but there is good evidence that this is a compensatory measure when neurons ' lysosomes stop working properly as a result of the more modest accumulation of lysosomal toxins, so if we fix the lysosome then the non - lysosomal aggregates should disappear naturally
[附註:在神經性退化中,主要的堆積物往往在細胞的其他部分形成、而不是在溶酶體形成,但有很好的證據表明,這是一種補償措施:當神經原的溶酶體因溶酶體毒素積累到一定程度就停止工作,所以,如果我們修理了溶酶體,那麼非溶酶體的堆積物就會自然消失。分享友人