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Chemopreventive effect of apple and berry fruits against colon cancer 被引量:3
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作者 Saravana Kumar Jaganathan Muthu Vignesh Vellayappan +6 位作者 Gayathri Narasimhan Eko Supriyanto Dyah Ekashanti Octorina Dewi Aqilah Leela T Narayanan Arunpandian Balaji Aruna Priyadarshini Subramanian Mustafa Yusof 《World Journal of Gastroenterology》 SCIE CAS 2014年第45期17029-17036,共8页
Colon cancer arises due to the conversion of precancerous polyps(benign)found in the inner lining of the colon.Prevention is better than cure,and this is very true with respect to colon cancer.Various epidemiologic st... Colon cancer arises due to the conversion of precancerous polyps(benign)found in the inner lining of the colon.Prevention is better than cure,and this is very true with respect to colon cancer.Various epidemiologic studies have linked colorectal cancer with food intake.Apple and berry juices are widely consumed among various ethnicities because of their nutritious values.In this review article,chemopreventive effects of these fruit juices against colon cancer are discussed.Studies dealing with bioavailability,in vitro and in vivo effects of apple and berry juices are emphasized in this article.A thorough literature survey indicated that various phenolic phytochemicals present in these fruit juices have the innate potential to inhibit colon cancer cell lines.This review proposes the need for more preclinical evidence for the effects of fruit juices against different colon cancer cells,and also strives to facilitate clinical studies using these juices in humans in large trials.The conclusion of the review is that these apple and berry juices will be possible candidates in the campaign against colon cancer. 展开更多
关键词 APPLE BERRY CHEMOPreVENTION COLON can-cer Fruit ju
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Celebrating 70 years of health research on the 70^th birthday of the People's Republic of China:Outstanding Scientific Achievements by Academicians of Chinese Academy of Sciences A Chinese Academy of Engineering in Neural Regeneration
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《Neural Regeneration Research》 SCIE CAS CSCD 2019年第9期F0004-F0004,共1页
Gong Ju,Member,Chinese Academy of Sciences In 1953 Prof.Gong Ju was recruited by People’s Liberation Army to be a teacher in Department of Anatomy of the Fourth Military Medical University,a school just established a... Gong Ju,Member,Chinese Academy of Sciences In 1953 Prof.Gong Ju was recruited by People’s Liberation Army to be a teacher in Department of Anatomy of the Fourth Military Medical University,a school just established and located in Xi'an,a very back-woods city.The university had little,if any,research facilities. 展开更多
关键词 GONG Ju People’s LIBERATION research facilities
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Probe into the Logic and Rhetoric of Propriety in The Book of Songs :Taking “Guan Ju” as the Core Example
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作者 Lu Yong 《学术界》 CSSCI 北大核心 2020年第1期209-217,共9页
The Book of Songs is a book of propriety passing on rites and teaching people by the form of poetry with unique logic and rhetoric.“Guan Ju”is the most typical poem deducing the propriety of humans from the laws of ... The Book of Songs is a book of propriety passing on rites and teaching people by the form of poetry with unique logic and rhetoric.“Guan Ju”is the most typical poem deducing the propriety of humans from the laws of nature,which is acceptable,convinced and obeyed by the people naturally,friendly and eloquently.Therefore,the logic and rhetoric in The Book of Songs can be reconciled and self-consistent in the poetic thinking of the unity of heaven and humans. 展开更多
关键词 The Book of Songs Guan Ju LOGIC RHETORIC
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The Interpretation of "Ju Men","Wen Qu" from Kun Ren Yi of Qing Nang Ao Yu-Also Discuss on the Cognition of the Study of Traditional Feng Shui
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作者 Liu Yi Zhang Yan 《Journal of Literature and Art Studies》 2019年第6期654-659,共6页
There are three different opinions of the first sentence from Qin Nang Ao Yu (青囊奥语), which was written by Yang Jun-song (杨筠松). They are “Kun Ren Yi (坤壬乙) should start from the star Ju Men (巨门)”;“Kun Ren... There are three different opinions of the first sentence from Qin Nang Ao Yu (青囊奥语), which was written by Yang Jun-song (杨筠松). They are “Kun Ren Yi (坤壬乙) should start from the star Ju Men (巨门)”;“Kun Ren Yi should start from the star Wen Qu (文曲)” and “Kun Ren Yi should start from both the star Lian Zhen and the star Ju Men (Lian Ju (廉巨))”. Because of the sectarianism,though the people were at odds with the opinions, we cannot find out any comprehensive and objective study on these. According to the analysis of some relevant literatures, it can be seen that there are two viewpoints nowadays. One of the viewpoints deemed that the first sentence was falsified by Jiang Da-hong (蒋大鸿), and another one deemed that was falsified by Zhang Shou-qi (张受祺). But neither of the view was credible. More precisely is that “Wen Qu” and “Ju Men” were both found in the publications simultaneously, and there were more “Wen Qu”, during the period of the end of the Ming Dynasty and the era of the emperors Kangxi and Qianlong of the Qing Dynasty. The influence of “Ju Meg” was gradually spread when Jiang Da-hong used it in his book and also Si Ku Quan Shu (四库全书) cited it, then let to more pithy formulas of “Ju Men” to be used now. And the “Lian Ju” was rare to be used except Duan Mu Guo-hu (端木国瑚) who used to use it. The way of interpretation is so multiple and complex on the “Wen Qu” and “Ju Men” from the Qin Nang Ao Yu, according to the perspective of Feng Shui, which is reflecting the pluralism and uncertainty of the interpretation of the traditional Feng Shui. And it is still need to be required a further more careful consideration on how to treat the studies of the traditional Feng Shui for the nowadays scholars. 展开更多
关键词 Qin Nang AO Yu JU MEN Wen Qu
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Oxidative stress in brickmakers of Juárez City, Chihuahua, México: Case-control study
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作者 Leobardo Manuel Gómez-Oliván Alba Yadira Corral-Avitia +5 位作者 Katya Aimeé Carrasco-Urrutia Navor Armando González-Granados Marcela Galar-Martínez Nadia Neri-Cruz Hariz Islas-Flores Octavio Dublan-García 《Advances in Bioscience and Biotechnology》 2012年第7期1051-1059,共9页
A case-control study was conducted in a brickmaker’s community in Juarez City, Chihuahua in Mexico. This population has been chronically exposed to a wide spectrum of potentially health-damaging pollutants that inclu... A case-control study was conducted in a brickmaker’s community in Juarez City, Chihuahua in Mexico. This population has been chronically exposed to a wide spectrum of potentially health-damaging pollutants that include coarse, fine and ultrafine particles, carbon monoxide (CO), oxides of nitrogen and sulphur, transitional metals, polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds and bioaerosols. Lipid peroxidation level (LPX) and protein carbonyl content (PCC) help to evaluate oxidized protein content and activity of the antioxidant enzymes: superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) were evaluated in blood samples of study participants. The group of occupationally exposed (OE) workers consisted of 30 individuals ranging in age from 25 to 55 years, with a mean of 15 years in a brick production-related job. The control group included 30 volunteers who were neither environmentally nor occupationally exposed to brick production activities and whose sociodemo-graphic characteristics were similar to the OE group. Results indicate that none of workers used any type of protective equipment (respirator or face mask, gloves, coveralls) during brick manufacturing. LPX and PCC significantly increased (p < 0.5) in the OE group compared to the control group. SOD, CAT and GPx activity was significantly increased (p < 0.5) in the OE group compared to the control group. Therefore, evaluation of stress oxidative biomarkers is advisable in order to assay chronic exposure to workers in brick manufacturing. 展开更多
关键词 OXIDATIVE Stress Brickmakers Chronic Exposure Biomarkers Juárez CITY
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JUS有机硅凝胶相容性的研究
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作者 徐传骧 储九荣 +1 位作者 崔秀芳 邓泽全 《电力电子技术》 CSCD 北大核心 1999年第6期51-53,共3页
研究了JUS有机硅凝胶与各种材料的相容性问题。已固化聚苯硫醚(PPS) 外壳材料与硅凝胶有很好的相容性,而未固化PPS却使铂催化剂中毒,表明含有毒素的物质是否会使铂催化剂中毒,与毒素的存在形式和活性有关。一般常用的D... 研究了JUS有机硅凝胶与各种材料的相容性问题。已固化聚苯硫醚(PPS) 外壳材料与硅凝胶有很好的相容性,而未固化PPS却使铂催化剂中毒,表明含有毒素的物质是否会使铂催化剂中毒,与毒素的存在形式和活性有关。一般常用的DCB板和GD406 硅胶粘剂与JUS硅凝胶都有较好的相容性,但含有硫元素的703 硅胶粘剂却使硅凝胶中毒。最后研究了预防硅凝胶不固化的方法,认为使用SP漆作屏蔽层是有效的办法。 展开更多
关键词 相容性 有机硅凝胶 jus SP漆 电力电子器件
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欧盟6G通信技术研发动态与进展
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作者 王飘 《全球科技经济瞭望》 2024年第4期59-67,共9页
第六代无线通信技术/移动网络技术(6th generation wireless systems/mobile networks,6G)发展是当前全球关注的热点,也是各国争相寻求技术突破的重要竞争点。欧盟依托“地平线欧洲”计划,为其6G研发建立了欧洲智能网络服务重大项目联... 第六代无线通信技术/移动网络技术(6th generation wireless systems/mobile networks,6G)发展是当前全球关注的热点,也是各国争相寻求技术突破的重要竞争点。欧盟依托“地平线欧洲”计划,为其6G研发建立了欧洲智能网络服务重大项目联合执行体(The European Smart Networks and Services Joint Undertaking,SNS JU),通过该执行体统筹管理6G研发项目选拔立项与实施。同时,欧盟积极寻求全球6G研发合作,与日本、韩国等国家建立数字伙伴关系,开展前沿技术领域合作。 展开更多
关键词 欧盟 6G研发 SNS JU
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THE EVOLUTION OF LANPING RIFT BASIN FROM LADINIAN IN MIDDLE TRIASSIC EPOCH TO EARLY JURASSIC EPOCH
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作者 Zhu Lidong,Wang Chengshan,Liu Dengzhong 《地学前缘》 EI CAS CSCD 2000年第S1期290-290,共1页
Lanping basin was a massif (land massif) in late Palaeozoic Era. The ocean of Jinshajiang separated it from Yangtze plate in east. Lancangjiang ocean separated it from Yunnan—Tibet plate in west. From late Permian Ep... Lanping basin was a massif (land massif) in late Palaeozoic Era. The ocean of Jinshajiang separated it from Yangtze plate in east. Lancangjiang ocean separated it from Yunnan—Tibet plate in west. From late Permian Epoch, the oceanic crust of Jinshajiang subduced the west from east, the one of Lancangjiang down went the east from west, and then the Yunnan—Tibet ancient land gradually closed to the Yangtze. In the end of the Permian Period, two continents and Lanping plate touched together, and the evolution history of the Paleotethys was end. Hercynian orogenic belt in the east and west sides of Lanping had volcanic rock colliding in early—middle Triassic Epoch. In Ladinian in middle Triassic and Carnian in late Triassic, the north side of Lanping basin formed the serial volcanic rock of spilite—quartz keratophyre because mantle\|derived magma causing by delamination rose and mixed with the constituent of continental crust. The volcanic rock overlapped the middle Triassic and late Palaeozoic stratum in angular unconformity. It was the feature of double peak or evolution from the basic to the acid. The race element distribution of volcanic rock was same as the one of tholeiite in island and inter\|arc basin. The rate of lead isotope of the volcanic rock was much higher. These points all distributed above the NHRL in Pb\|Pb. This indicated that the Pb of volcanic rock was the mantle\|derived magma mixed with crust one. The large\|area progression in Lanping rift basin begun in late Carnian.. The east side in Lanping basin developed the sedimentary system that was granule gravel (grit) rock in border facies—limestone in beach facies—black shale, and the middle had black shale, banded siliceous rock, brecciform limestone in late Carnian to Norian. The geochemistry research of siliceous rock showed that the genesis of the chert was hot water. The development of brecciform limestone was related with action of central\|axis rift. The Lanping rift basin went into consuming stage in Rhaetian Epoch of the late Triassic. The basin developed clastic rock bearing coal of continental\|oceanic alternation facies. In early Jurassic, the sedimentary area atrophied further, and the fine lacustrine sediment whose thickness was not great developed in the east of central\|axis. The west stratum of the basin in late Triassic Epoch touched directly with the one in middle Jurassic. Lanping basin was going into another evolution stage that was down\|warped basin. 展开更多
关键词 Lanping RIFT basin LADinIAN in MIDDLE TRIASSIC to early JU rassic EPOCH
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Ju Er Hutong Project:A Rehabilitation Model or an Unsuccessful Attempt?
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作者 Giuseppe Cinà Qi Mu 《Journal of Civil Engineering and Architecture》 2018年第9期629-643,共15页
What will be the future of Chinese urban heritage in the context of globalisation and a socialist market?Ju Er Hutong,as one of the first rehabilitation projects to take place during China’s late-1980s housing reform... What will be the future of Chinese urban heritage in the context of globalisation and a socialist market?Ju Er Hutong,as one of the first rehabilitation projects to take place during China’s late-1980s housing reforms,is generally considered a successful initiative in terms of urban regeneration and historic area conservation.To what extent does this success demonstrate a capacity to develop new policies and a new planning approach in the current Chinese urban regeneration process?To answer this question,and to summarize its achievements and its remaining unsolved problems,this paper provides the following insights:(1)an analysis of the evolution of Ju Er Hutong to its current form;(2)a literature review concerning the background and the outcome of the rehabilitation process;and(3)a critical assessment of the overall process,so as to summarize its constitutive advantages and problems. 展开更多
关键词 URBAN heritage old city preservation JU ER HUTONG URBAN reSTRUCTURinG conservation
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WE.IGE.So Ju vs pan^xing 热血的代价
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作者 唔虾米 《电子竞技》 2006年第20期64-67,共4页
【大手笔】遥记当年War3才出现时,有几个外国玩家在LT上战斗,那是一场鏖战,之所以被人铭记,是因为那场比赛打了13小时又45分钟。对战的选手不仅有闲,而且充满战意,谁都不肯认载。当比赛成了攻不下来也打不出去的尴尬局面时,选手开始到... 【大手笔】遥记当年War3才出现时,有几个外国玩家在LT上战斗,那是一场鏖战,之所以被人铭记,是因为那场比赛打了13小时又45分钟。对战的选手不仅有闲,而且充满战意,谁都不肯认载。当比赛成了攻不下来也打不出去的尴尬局面时,选手开始到暴雪的官方论坛在线求助,集思广益……想想当时的场面还真是波澜壮阔,不知道当事人是不是在发帖后顺便陪女友逛了个街,洗了次澡,又或者在论坛与人唇枪舌剑,辩摧众口。总之,那场比赛结果与过程都不重要,比赛的寿命超越了所有的意义。而在职业选手的战斗中,也许是规则,也许是素养,很难有比赛超过1小时,今天带给大家的比赛,在职业选手里算是大手笔了,近50分钟。以笔者写战报的经历,只要超过40分钟的对战,就是Big Game,那么让我们进入今天的战斗吧。 展开更多
关键词 MF WE.IGE.So Ju vs pan^xing
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海风藤及其代用品药理作用的比较研究 被引量:30
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作者 孙绍美 於兰 +4 位作者 刘俭 宋玉梅 宋洁 王圣平 冯毓秀 《中草药》 CAS CSCD 北大核心 1998年第10期677-679,共3页
选择经典的实验指标,对海风藤及其3种代用品山蒟、石楠藤及毛蒟的药理作用进行了比较研究。结果表明海风藤、山蒟和毛蒟在抗炎、镇痛和抗血小板聚集方面均有效,其中海风藤作用最强,其次为山蒟、毛蒟。石楠藤没有明显的抗炎作用,其... 选择经典的实验指标,对海风藤及其3种代用品山蒟、石楠藤及毛蒟的药理作用进行了比较研究。结果表明海风藤、山蒟和毛蒟在抗炎、镇痛和抗血小板聚集方面均有效,其中海风藤作用最强,其次为山蒟、毛蒟。石楠藤没有明显的抗炎作用,其抗血小板聚集及止痛作用稍强于毛蒟。 展开更多
关键词 海风藤 山Ju 药理作用
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摄食水平和性别对稀有鮈鲫生长和能量收支的影响 被引量:25
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作者 朱晓鸣 解绶启 +2 位作者 崔奕波 杨云霞 光寿红 《海洋与湖沼》 CAS CSCD 北大核心 2001年第3期240-247,共8页
于 1 995年 1 0月采集本所自繁的稀有鮈鲫 (约 1 .0 3g/ind) ,在 30℃水温下进行摄食 -生长实验 ,研究了从饥饿到饱食 5个摄食水平对不同性别稀有鮈鲫的生长和能量收支的影响。结果表明 ,鱼体干物质和能量含量不受摄食率和性别的影响。... 于 1 995年 1 0月采集本所自繁的稀有鮈鲫 (约 1 .0 3g/ind) ,在 30℃水温下进行摄食 -生长实验 ,研究了从饥饿到饱食 5个摄食水平对不同性别稀有鮈鲫的生长和能量收支的影响。结果表明 ,鱼体干物质和能量含量不受摄食率和性别的影响。随着摄食率的增加 ,雌鱼的湿重、干重和能量特定生长率均呈双对数增加 ,雄鱼湿重特定生长率呈双对数增加 ,而干物质和能量特定生长率呈指数增加。雄鱼生长速度及摄食率低于雌鱼。随着摄食率的增加 ,食物能损失于粪便中的比例均呈上升趋势 ,损失于排泄物中的比例变化不大 ,呈下降趋势 ;用于代谢的比例呈下降趋势 ;用于生长的比例呈上升趋势。除饥饿组外 ,在各个摄食水平 ,雌鱼食物能用于代谢的比例较雄鱼低 ,而用于生长的比例较雄鱼高。 展开更多
关键词 摄食水平 性别 生长 能量收支 稀有ju鲫 湿重
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五种鲤科鱼类的RAPD分析兼论稀有鮈鲫的系统位置 被引量:47
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作者 何舜平 汪亚平 陈宜瑜 《水生生物学报》 CAS CSCD 北大核心 1997年第3期262-267,共6页
本文作者采用20个随机引物,对五种鲤科鱼类,即稀有鲫、中华细鲫、麦穗鱼、唐鱼和草鱼的基因组进行了DNA随机扩增分析(RandomAmplifiedPolymorphicDNA,即RAPD)。其目的是为了探讨稀有鲫的系统分类位置。研究结果表明在所研究的物种... 本文作者采用20个随机引物,对五种鲤科鱼类,即稀有鲫、中华细鲫、麦穗鱼、唐鱼和草鱼的基因组进行了DNA随机扩增分析(RandomAmplifiedPolymorphicDNA,即RAPD)。其目的是为了探讨稀有鲫的系统分类位置。研究结果表明在所研究的物种中,稀有鲫与中华细鲫和唐鱼有更近的亲缘关系。 展开更多
关键词 鱼纲 鲤科 Ju鲫 RAPD 系统位置 分类学
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稀有鮈鲫对草鱼出血病病毒敏感性的初步研究 被引量:27
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作者 王铁辉 刘沛霖 +3 位作者 陈宏溪 刘汉勤 易咏兰 郭文 《水生生物学报》 CAS CSCD 北大核心 1994年第2期144-149,共6页
本文报道稀有鲫对草鱼出血病病毒(GCHV)的敏感性。GCHV是草鱼出血病的病原,用GCHV人工感好1-6月龄的稀有鲫,在水温22-32℃时能导致稀有鲫出现出血病症状。在水温28℃时,病鱼在ld内死亡,潜伏期为5d,发... 本文报道稀有鲫对草鱼出血病病毒(GCHV)的敏感性。GCHV是草鱼出血病的病原,用GCHV人工感好1-6月龄的稀有鲫,在水温22-32℃时能导致稀有鲫出现出血病症状。在水温28℃时,病鱼在ld内死亡,潜伏期为5d,发病高峰期在感染后第6-8d。GCHV能在稀有鲫体内传代,并诱导80%以上的稀行鲫患病死亡。将人工感染GCHV的稀有鲫病鱼组织超薄切片,电镜观察,发现在肠道、脾脏、肾脏等组织中存在大小与形态和GCHV相似的病毒颗粒。从稀有鲫出血病病鱼组织中纯化病毒,免疫电镜观察,发现病毒颗粒能被GCHV的特异性抗体聚集成团。由上可知,稀有鲫出血病是由GCHV感染所致,稀有鲫对GCHV是敏感的,可以作为草鱼抗出血病育种的模型。 展开更多
关键词 草鱼出血病 病毒 稀有Ju鲫
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网湖似刺鳊鮈种群生长和死亡率研究 被引量:29
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作者 常剑波 孙建贻 +1 位作者 段中华 向阳 《水生生物学报》 CAS CSCD 北大核心 1994年第3期230-239,共10页
本文根据669尾标本,研究长江中游网湖小型经济鱼类似刺鳊的种群生长和死亡率,从理论推导证明,鱼类的生长拐点与其临界年龄是一致的,并据以对网湖似刺鳊等小型经济鱼类的合理渔业对策问题进行了初步分析讨论。
关键词 网湖 似刺鳊Ju 种群 生长 死亡率
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枳■子黄酮类成分研究 被引量:58
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作者 丁林生 梁侨丽 腾艳芬 《药学学报》 CAS CSCD 北大核心 1997年第8期600-602,共3页
从北枳(HoveniadulcisThunb)种子中首次分离并鉴定了4个黄酮类化合物,即双氢山奈酚(dihydrokaempferolI)、槲皮素(quercetinII)、(+)3,3′,5′,5,7五羟基双... 从北枳(HoveniadulcisThunb)种子中首次分离并鉴定了4个黄酮类化合物,即双氢山奈酚(dihydrokaempferolI)、槲皮素(quercetinII)、(+)3,3′,5′,5,7五羟基双氢黄酮[(+)3,3′,5′,5,7pentahydroflavanoneII]和(+)双氢杨梅黄素[(+)dihydromyricetinIV]。其中II为新化合物,I和IV为首次从该属植物中分到。 展开更多
关键词 北枳Ju 黄酮 化学成分 中草药
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稀有鮈鲫胚胎发育研究 被引量:42
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作者 常剑波 王剑伟 曹文宣 《水生生物学报》 CAS CSCD 北大核心 1995年第2期97-103,共7页
本文研究稀有鲫的胚胎发育过程以及水温变化对其发育速度的影响,首次报道了鱼类卵壳内,包裹于胚胎外的似膜结构和伴随的胚胎蜕膜现象。
关键词 稀有Ju鲫 胚胎发育 鲤科 鱼纲
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草鱼出血病病毒人工感染稀有(鱼句)鲫出血病鱼主要器官组织的超薄切片观察 被引量:12
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作者 王铁辉 陈宏溪 +3 位作者 刘沛霖 刘汉勤 郭文 易泳兰 《水生生物学报》 CAS CSCD 北大核心 1993年第4期343-346,共4页
用电子显微镜观察了稀有(鱼句)鲫出血病(Hemorrhage of Gobiocypris rarus)鱼的病理切片及对照鱼的超薄切片。在对照鱼的鳃、肠道、肾脏、脾脏、肌肉和肝脏中没有见到任何病毒颗粒。在病鱼鳃血管内皮细胞质中观察到聚集的直径70nm左右的... 用电子显微镜观察了稀有(鱼句)鲫出血病(Hemorrhage of Gobiocypris rarus)鱼的病理切片及对照鱼的超薄切片。在对照鱼的鳃、肠道、肾脏、脾脏、肌肉和肝脏中没有见到任何病毒颗粒。在病鱼鳃血管内皮细胞质中观察到聚集的直径70nm左右的GCHV颗粒,说明鳃是GCHV侵袭的主要器官之一,并讨论了鳃对GCHV敏感在GCHV传播中的意义。还在病鱼肠道,肾脏中观察到成片的病毒颗粒,它们也是GCHV侵袭的主要组织。在病鱼脾脏的电子密度低的细胞质中观察到散在的病毒颗粒。很少见到病毒聚集体,脾脏中的病毒可能是脾脏的吞噬细胞吞噬而来。作者认为在病鱼组织中观察到的大小不同的病毒颗粒是处于不同成熟阶段的GCHV。 展开更多
关键词 稀有Ju鲫 草鱼 出血病 病毒
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稀有鮈鲫胚后发育和幼鱼生长的初步研究 被引量:23
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作者 王剑伟 宋天祥 曹文宣 《水生生物学报》 CAS CSCD 北大核心 1998年第2期128-134,共7页
本文介绍了室养条件下稀有 鲫胚后发育与幼鱼生长的特点。稀有 鲫的胚后发育过程可分为3个阶段共11个时期,在水温24.7—31.8℃的条件下,初孵仔鱼经25—30d即可完成胚后发育。在胚后发育期间,仔鱼、稚鱼及幼鱼呈线性生长,每日增... 本文介绍了室养条件下稀有 鲫胚后发育与幼鱼生长的特点。稀有 鲫的胚后发育过程可分为3个阶段共11个时期,在水温24.7—31.8℃的条件下,初孵仔鱼经25—30d即可完成胚后发育。在胚后发育期间,仔鱼、稚鱼及幼鱼呈线性生长,每日增长0.52mm左右。饲养条件对生长和发育均有很大影响。在相同的饲养条件下,采于四川省汉源县、灌县及彭县的亲鱼,其后代在生长上无显著性差异。 展开更多
关键词 稀有Ju鲫 胚后发育 仔鱼 稚鱼 幼鱼 生长
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几种易混种子类中药的扫描电镜鉴别 被引量:15
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作者 张淑华 李连怀 +2 位作者 刘振通 常广敬 王丽 《中草药》 CAS CSCD 北大核心 1995年第8期427-429,共3页
用扫描电镜对几种易混中药酸枣仁和枳子、韭菜子和葱子、芥子和芸苔子的表面进行了扫描鉴别。结果表明:酸枣仁表面有许多不规则的凹窝,枳子表面却有许多乳头状突起;韭菜子种皮细胞不规则形或多角形,外壁附有角质突起,葱子种皮细胞... 用扫描电镜对几种易混中药酸枣仁和枳子、韭菜子和葱子、芥子和芸苔子的表面进行了扫描鉴别。结果表明:酸枣仁表面有许多不规则的凹窝,枳子表面却有许多乳头状突起;韭菜子种皮细胞不规则形或多角形,外壁附有角质突起,葱子种皮细胞多角形,可见胞间联丝;芥子种皮细胞类多角形。垂周壁厚且外突,芸苔子种皮细胞多角形,垂周壁薄,微突出,外壁内凹外被网状角质纹理。 展开更多
关键词 鉴别 酸枣仁 枳Ju 韭菜子 葱子 芥子 芸苔子
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