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信帆无线路由大猫隆重上市
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《现代信息技术》 2004年第7期86-87,共2页
面对宽带日益普及,如何摆脱有线的束缚,享受到无拘无束的无线宽带新体验,无线宽带如同一股旋风,正在席卷着每一个宽带角落。近日,作为“无线终端”锋头最劲的厂家,信帆公司在国内展示一款目前最先进的无线新贵产品“SAW5418”无... 面对宽带日益普及,如何摆脱有线的束缚,享受到无拘无束的无线宽带新体验,无线宽带如同一股旋风,正在席卷着每一个宽带角落。近日,作为“无线终端”锋头最劲的厂家,信帆公司在国内展示一款目前最先进的无线新贵产品“SAW5418”无线路由大猫。该产品通过目前最新802 11g无线技术与ADSL宽带技术的高度整合, 展开更多
关键词 无线路由大猫 信帆公司 技术标准 传输速率 数据加密
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大猫生小猫
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作者 徐慕璐 《小作家选刊(小学生版)》 2011年第10期43-43,共1页
我家咪咪的肚子一天天大了。奶奶告诉我,咪咪马上就要生小猫了。我多么希望它生几只威武又伶俐的小宝宝呀!
关键词 大猫生小 小学生 作文 语文学习
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“惊险三重唱”系列故事⑥ 大猫帝国
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作者 大雄 杨晓娟 《小学生导刊(中年级版)》 2010年第8期34-37,共4页
关键词 大猫 故事 民间文学
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香果树扦插育苗技术 被引量:7
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作者 王鸣凤 徐八骏 +4 位作者 王泽超 卜良高 张晓红 张良富 张梅林 《林业实用技术》 北大核心 2001年第7期41-,共1页
关键词 香果树 安徽省 林业局 大猫 扦插育苗技术 主侧根 泾县 扦插苗
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Age Differences in Behavioral Responses of Male Giant Pandas to Chemosensory Stimulation 被引量:8
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作者 田红 魏荣平 +2 位作者 张贵权 孙儒泳 刘定震 《Zoological Research》 CAS CSCD 北大核心 2007年第2期134-140,共7页
Chemical communication plays an important role in survival and reproductive success in mammalian species. In the present study, we examined the ontogenetic pattern of behavioral responses of male giant pandas (Ailuro... Chemical communication plays an important role in survival and reproductive success in mammalian species. In the present study, we examined the ontogenetic pattern of behavioral responses of male giant pandas (Ailuropoda melanoleuca ) to urine odors of conspecific individuals. Our data showed that exposure to the urine of adult females induced a significant increase in sniffing and environmental sniffing/licking behaviors, but a decrease in biting behavior, in males. Males of different ages displayed specific behaviors to female urine odors. Adult males spent more time licking than juvenile and sub-adult males. Further, sub-adult and adult males displayed high levels of environmental sniffing/licking, which was absent in the juvenile males. Juvenile males displayed scent rubbing behavior significantly more frequently than sub-adult and adult males, and also spent more time showing biting behavior than sub-adult males. Finally, juvenile and sub-aduh males showed no difference in response to female and male urine odors. Together, these data suggest that chemosensory cues from conspecific urines induce age-specific responses in male giant pandas. 展开更多
关键词 Giant panda Urine odor Chemical communication Behavioral development
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PHYLOGENETIC RELATIONSHIPS AMONG GIANT PANDA AND RELATED SPECIES BASED ON RESTRICTION SITE VARIATIONS IN rDNA SPACERS 被引量:5
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作者 兰宏 王文 《Zoological Research》 CAS CSCD 1998年第5期337-343,共7页
In this study, non radioactive Digoxigenin labeled ribosomal DNA(rDNA) probes were used for Southern blotting analysis to study the molecular phylogeny of the giant panda and related species. Restriction maps in the ... In this study, non radioactive Digoxigenin labeled ribosomal DNA(rDNA) probes were used for Southern blotting analysis to study the molecular phylogeny of the giant panda and related species. Restriction maps in the regions of rDNA spacers were compared between giant panda( Ailuropoda melanoleuca ), lesser panda( Ailurus fulgens ), Asiatic black bear( Selenarctos thibetanus ), sun bear( Helarctos malayanus ), raccoon( Procyon lotor ) and lynx( Felis lynx ). Phylogenetic trees for these species were constructed using maximum likelihood and parsimony method. The results show that in respect to rDNA RFLPs, the giant panda is more closely related to bear than to lesser panda; while the lesser panda is slightly related to the raccoon. 展开更多
关键词 Arctoidea The giant panda Ribosomal DNA restriction maps Phylogenetic relationships
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Serological survey on canine coronavirus antibodies in giant pandas by virus neutralization test 被引量:2
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作者 乔军 夏咸柱 +9 位作者 杨松涛 李德生 胡桂学 高玉伟 孙贺廷 赵忠鹏 谢之景 闫芳 贺文琦 黄耕 《Journal of Forestry Research》 SCIE CAS CSCD 2004年第4期295-297,共3页
In order to survey the infectious situation of canine coronavirus (CCV) in giant panda population, a virus neutralization test detecting specific antibodies against CCV in giant panda抯 sera was established by using t... In order to survey the infectious situation of canine coronavirus (CCV) in giant panda population, a virus neutralization test detecting specific antibodies against CCV in giant panda抯 sera was established by using two-fold dilutions of serum and 100 TCID50 of the virus. The 62 sera samples of giant pandas, which were gathered from zoos and reserve region of Sichuan Province, China were detected. The neutralization antibody titer of 1:4 was recognized as the positive criterion, 8 sera samples were detected to be positive, and the positive rate was 12.9%. The titers of neutralizing antibody ranged from 1:8 to 1:32. It was the first comprehensive investigation on neutralization antibodies against CCV in giant panda population in China. The results of study showed that the infection of CCV in giant panda population was universal, which has posed a threat to the health of giant panda. Therefore, it is incumbent on us to study safe and effective vaccines to protect giant panda against CCV infection. 展开更多
关键词 Serological survey Canine coronavirus Giant panda Neutralization test
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Efficiency of Artificial Insemination in Giant Pandas at the Wolong Breeding Center 被引量:6
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作者 黄炎 王鹏彦 +7 位作者 张贵权 张和民 李德生 汤纯香 魏荣平 胡大明 冯莉 Howard J G 《Developmental and Reproductive Biology》 2002年第2期118-125,共8页
The goal of the giant panda ( Ailuropoda melanoleuca ) breeding program is to develop a self sustaining,genetically diverse population.Due to the common problems about sexual incompatibility and a limited number of... The goal of the giant panda ( Ailuropoda melanoleuca ) breeding program is to develop a self sustaining,genetically diverse population.Due to the common problems about sexual incompatibility and a limited number of captive born males that breed naturally,artificial insemination (AI) has become a critical genetic management tool.It is common practice,however,to combine natural mating and AI using semen from non breeding males.From 1998 to 2000 at the Wolong breeding facility,12 of 18 (66.7%) females produced 20 cubs following combined natural mating and AI.The objective of this study was to determine the efficiency of AI without natural breeding.In 1998 and 2000,seven females were anesthetized for transcervical AI on two consecutive days.Ejaculates from six males were collected by electroejaculation,diluted in an egg yolk diluent containing 0% or 4% glycerol and used either fresh or following cold storage at 4℃ (for 24 or 48 h) or cryopreservation using the pellet freezing method.Mean (±SEM) ejaculate traits in six male sperm donors were:ejaculate volume,3.3±0.5 ml;sperm concentration,1,429.8±235.4×10 6/ml;sperm motility,81.7±2.1%;progression (0~5,5=best),3.1±0.1;and normal sperm,79.3±9.2%.For AI (n = 14) in seven females,mean inseminate traits were:spermic volume inseminated,2.4±0.3 ml;sperm motility,73.5±2.9%;progression,2.5±0.1;and total motile sperm inseminated/AI,684.2±118.2×10 6.Four of seven (57.1%) females became pregnant and produced five cubs of which four survived.Mean gestation and litter size was 131.5±9.7 days and 1.3±0.3 cubs/litter,respectively.These results indicate that the efficiency of AI is sufficient for recovering valuable genes from non breeding individuals to enhance genetic diversity in the ex situ population of giant pandas. 展开更多
关键词 giant panda artificial insemination genetic phylogeny
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Impacts of the Wenchuan Earthquake on the Giant Panda Nature Reserves in China 被引量:11
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作者 DENG Xiangzheng JIANG Qunou +1 位作者 GE Quansheng YANG LinSheng 《Journal of Mountain Science》 SCIE CSCD 2010年第2期197-206,共10页
The Wenchuan Earthquake that occurred in May of 2008 caused damages to large areas of Sichuan,Gansu,and Shaanxi provinces in China.Reports from local governments and related management agencies show that the giant pan... The Wenchuan Earthquake that occurred in May of 2008 caused damages to large areas of Sichuan,Gansu,and Shaanxi provinces in China.Reports from local governments and related management agencies show that the giant panda nature reserves in the earthquake-hit areas were heavily damaged.Our estimates in this paper of the impacts of the earthquake on the giant panda in the earthquake-hit areas were made based on the interpretation of remote sensing images and information collected by field survey.A rapid assessment method was designed to estimate the damages of the earthquake on giant panda habitats.By using visual interpretation methods,we decoded the remote sensing images of the disaster area in the 49 giant panda nature reserves.Research results showed that the Wenchuan Earthquake and the succeeding secondary geological disasters caused great damages to the giant panda nature reserves and disturbed the normal life of the giant pandas there (e.g.,landscape fragmentation increased significantly).Undoubtedly,the life of the giant pandas there was affected.However,although the earthquake caused certain impacts on the giant pandas,it did not really threat their survival.Even so,we still strongly advocate for protection of the giant pandas,and have prioritized a couple of measures to be taken to restore the giant panda nature reserves in the earthquake-hit areas. 展开更多
关键词 Wenchuan earthquake Remote sensing Giant panda Giant panda nature reserve Rapid assessment method
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Evaluating Conservation Effectiveness of Nature Reserves Established for Surrogate Species:Case of a Giant Panda Nature Reserve in Qinling Mountains,China 被引量:12
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作者 XU Weihua Andrés VIA +4 位作者 QI Zengxiang OUYANG Zhiyun LIU Jianguo LIU Wei WAN Hui 《Chinese Geographical Science》 SCIE CSCD 2014年第1期60-70,共11页
Many nature reserves are established to protect the habitat needs of particular endangered species of interest but their effectiveness for protecting other species is questionable.In this study,this effectiveness was ... Many nature reserves are established to protect the habitat needs of particular endangered species of interest but their effectiveness for protecting other species is questionable.In this study,this effectiveness was evaluated in a nature reserve network located in the Qinling Mountains,Shaanxi Province,China.The network of reserves was established mainly for the conservation of the giant panda,a species considered as a surrogate for the conservation of many other endangered species in the region.The habitat suitability of nine protected species,including the giant panda,was modeled by using Maximum Entropy(MAXENT)and their spatial congruence was analyzed.Habitat suitability of these species was also overlapped with nature reserve boundaries and their management zones(i.e.,core,buffer and experimental zones).Results show that in general the habitat of the giant panda constitutes a reasonable surrogate of the habitat of other protected species,and giant panda reserves protect a relatively high proportion of the habitat of other protected species.Therefore,giant panda habitat conservation also allows the conservation of the habitat of other protected species in the region.However,a large area of suitable habitat was excluded from the nature reserve network.In addition,four species exhibited a low proportion of highly suitable habitat inside the core zones of nature reserves.It suggests that a high proportion of suitable habitat of protected species not targeted for conservation is located in the experimental and buffer zones,thus,is being affected by human activities.To increase their conservation effectiveness,nature reserves and their management zones need to be re-examined in order to include suitable habitat of more endangered species.The procedures described in this study can be easily implemented for the conservation of many endangered species not only in China but in many other parts of the world. 展开更多
关键词 giant panda habitat suitability Maximum Entropy(MAXENT) nature reserve network surrogate species
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A Remote Sensing-based Analysis on the Impact of Wenchuan Earthquake on the Core Value of World Nature Heritage Sichuan Giant Panda Sanctuary 被引量:8
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作者 YU Hu ZHAO Yongtao +4 位作者 MA Yuewei SUN Yulian ZHANG Hu YANG Shihong LUO Yong 《Journal of Mountain Science》 SCIE CSCD 2011年第3期458-465,共8页
In this study,we used remotely sensed data,GIS modeling,and statistical methods to evaluate the damage caused by the Wenchuan Earthquake (May 12,2008) to the giant panda (Ailuropoda melanoleuca) habitat in the World N... In this study,we used remotely sensed data,GIS modeling,and statistical methods to evaluate the damage caused by the Wenchuan Earthquake (May 12,2008) to the giant panda (Ailuropoda melanoleuca) habitat in the World Nature Heritage Sichuan Giant Panda Sanctuary (WHSGPS) in China.A landscape ecological analysis found increases of landscape heterogeneity,complexity,and fragmentation in the giant panda habitat after the earthquake.A terrain analysis found that slope and elevation are directly associated with the distribution of the damaged areas.As slope and elevation increase,the size of the damaged area keeps increase until to a peak,and then starts to drop.The total area of the damaged vegetation in our study area is 114.26 km 2,accounting for 3.78% of the study area;30.46% of that 114.26 km 2 is located in the Core Zone of WHSGPS.There are 18.57km 2 of the damaged vegetation located in the identified suitable giant panda habitat,accounting for 1.75% of the total area of suitable giant panda habitats in the study area.Based on these findings,we conclude that the Wenchuan Earthquake does not have significant impact on the WHSGPS as a whole. 展开更多
关键词 World Nature Heritage Giant Panda Sanetuaries Suitable giant panda habitat Model Wenehuan Earthquake Landscape pattern GIS RS
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An approach on the survivorship of giant panda in wild 被引量:1
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作者 李兆华 《Journal of Forestry Research》 SCIE CAS CSCD 2001年第1期59-62,共5页
The endangered giant panda (Ailuropoda melanoleuca) is endemic to th e mountains of Sichuan, Gansu and Shaanxi Provinces in China. The species had nu mbered over 2000 animals in early 1970s, but declined to no more th... The endangered giant panda (Ailuropoda melanoleuca) is endemic to th e mountains of Sichuan, Gansu and Shaanxi Provinces in China. The species had nu mbered over 2000 animals in early 1970s, but declined to no more than 1,000 anim als fragmented into perhaps 32 subpopulations in late 1990s as the result of num erous detrimental forces such as habitat shrinking, poaching and bamboo flowerin g. The mass flowering and followed die-off of bamboo played key roles in the dec lination of panda population in the past three decades. It trigged the starvatio n and following high mortality of giant pandas in 1970s over Min Mountains and i n 1980s across Qionglai Mountains in Sichuan Province. The situation of survivor ship is made worse by the fact that the panda habitat is fragmented into many sm all 'islands', each containing only a few pandas. Such small, isolated panda pop ulations are rendered even more vulnerable to extinction form threats such as ha bitat degradation, natural disaster, disease, and the deleterious effects of inb reeding. So restoring the panda habitat and reintroduction pandas to their histo rical habitat might be an important issue for protecting the giant panda in wild . 展开更多
关键词 Giant panda Population dynamics Bamboo flowering SURVIVORSHIP Cons ervation REINTRODUCTION
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SEASONAL CHANGES OF PROGESTE RONE AND TESTOSTERONE CONTENTS IN HAIR OF GIANT PANDAS
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作者 郭大智 刘显义 +8 位作者 陈发菊 宋雪华 王开荣 邱贤猛 汤纯香 张和民 何廷美 陈猛 张贵权 《Nuclear Science and Techniques》 SCIE CAS CSCD 1994年第1期1-6,共6页
Seasonal changes of progesterone content (PSC) in hair of three female giant pandas and testosterone content (TSC) in hair of two male giant pandas were tested. It was found that the two hormones could be detected by ... Seasonal changes of progesterone content (PSC) in hair of three female giant pandas and testosterone content (TSC) in hair of two male giant pandas were tested. It was found that the two hormones could be detected by radioimmunoassay in all the hair samples scissored from the female and male giant pandas respectively. During March to early June, PSC in two non-pregnent giant pandas (±SD = 13.40 ± 10.06 and10.60±8.88 ng / g hair respectively) were higher than those in non-breeding season (3.07 ± 1.07 and 3.20 ±1.15 ng / g, P< 0.01). PSC in a 18--year--old female giant panda remained at low levels (2.72 ± 1.49 ng / g) during March to December. In a twin--beargiant panda, PSC (6.77± 3.66 ng / g) appeared higher than that.in non--pregnant giantpandas in non--breeding season. Around February tO the end of May, TSC in two male giant pandas (1.89± 1.71 and 1.82 ± 1.04 ng / g respectively) were also higher than that in non-breeding season (0.98 ± 0.57 and 0.75 ± 0.39 ng / g, P< 0.01). The findings from the study implied that giant panda's hair is possible to be used as a specimen tO carryout steroids research in the endangered species. 展开更多
关键词 Giant panda HAIR PROGESTERONE TESTOSTERONE RADIOIMMUNOASSAY
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The Social Enrichment and Training of Large Cats and Cheetahs
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作者 Ivana Gardianova Alzbeta Kocourkova 《Journal of Life Sciences》 2014年第3期266-268,共3页
Environmental enrichment increases the expression of behavior and welfare. The aim of the study was to analyze situation of the social enrichment (training) of big cats and cheetahs in Czech and Slovak zoos based on... Environmental enrichment increases the expression of behavior and welfare. The aim of the study was to analyze situation of the social enrichment (training) of big cats and cheetahs in Czech and Slovak zoos based on the evaluation questionnaire. It was found out that social enrichment, as part of the environmental enrichment, was used in 50% of animal, 16 animal get training only. A lot of animal had positive reactions on enrichment. 展开更多
关键词 Big cats environmental enrichment social enrichment questionary.
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Panda Habitat Added to World Heritage List
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作者 Qi Mei & Zhang Yan 《China & The World Cultural Exchange》 2006年第9期25-27,共3页
“Bamboo has blossomed. Held in her mother’s arms, Mimi is counting the number of stars in the sky. How beautiful the stars are and where is my breakfast tomorrow...
关键词 世界遗产目录 大熊 生活环境 自然保护区 栖息地
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当我和一只猫对视的时候
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作者 小太爷 《中学生博览》 2017年第1期I0041-I0041,共1页
第一次遇见那个黑白花的大猫是在学校里小砂锅店的门口。它好大个脑袋,浅绿的眼睛,肚子圆滚滚,懒洋洋地躺在那条小路的正中央。 四周绿草如茵,矮树连群,天边夕阳正好,薄暮向晚。
关键词 中等教育 语文 阅读 大猫
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因为爱你,我连异地恋都坚持得下去
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作者 苏笑嫣 《现代青年》 2019年第2期84-85,共2页
Chapter.1“你能不能想象那种感觉,就是一想到他正在一点一点向我靠近,就觉得很神奇也很幸福呀。”大猫在跟我说这句话的时候,眼睛里明亮亮的。
关键词 时候 眼睛 大猫 想象 异地 感觉
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A Graph-theoretic Analysis of Stressors Confronting Giant Panda Habitat across Minshan Mountain Region,China 被引量:1
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作者 肖燚 欧阳志云 +2 位作者 赵景柱 黄宝荣 朱春全 《Journal of Resources and Ecology》 CSCD 2010年第4期339-344,共6页
岷山地区位于四川盆地西北部,是我国生物多样性保护的优先地区,还是保护大熊猫的关键区域。本文以社会-经济-自然复合生态系统为基础,运用图论分析法研究了岷山地区影响大熊猫生境的人类活动方式,以及这些影响因子相互的关系。研究表明... 岷山地区位于四川盆地西北部,是我国生物多样性保护的优先地区,还是保护大熊猫的关键区域。本文以社会-经济-自然复合生态系统为基础,运用图论分析法研究了岷山地区影响大熊猫生境的人类活动方式,以及这些影响因子相互的关系。研究表明:影响大熊猫生境的人类活动的66对组合中,47.0%的因子间存在直接的联系,其中89.2%的影响具有增大效应。这说明人类活动对大熊猫生境的影响具有协同增大效应,并占主导地位。旅游景点开发、公路建设、采矿、高压电线、农业开发、放牧、薪柴采集这些影响因子存在强连通性,它们会将其他人类活动对大熊猫生境的影响放大,加剧对大熊猫生境的不利影响,表明它们是影响岷山地区大熊猫生境的主导人类活动。要想有效地保护岷山地区的大熊猫生境,就必须对这些主导人类活动进行有效的控制。本研究还表明图论分析法有助于明确影响熊猫生境的主导和关键因子,它能为制定有效的大熊猫保护策略提供科学依据。 展开更多
关键词 giant panda habitat anthropogenic stressors graph-theoretic analysis Minshan
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梦想范本
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作者 阿丫 孙熙宁(图) 《数码设计(surface)》 2010年第9期155-155,共1页
大猫,一个眉眼细长,说话声音粗粗的女孩。这样的反差很像她呈现给人的性格特点,外表柔弱,却有一颗无比强大的心。画家都是敏感的,大猫亦然。看她的画作:曲终人散,尚未卸妆的小丑,身影尽管凄冷,眼神纵然透着忧伤,但在那背后,... 大猫,一个眉眼细长,说话声音粗粗的女孩。这样的反差很像她呈现给人的性格特点,外表柔弱,却有一颗无比强大的心。画家都是敏感的,大猫亦然。看她的画作:曲终人散,尚未卸妆的小丑,身影尽管凄冷,眼神纵然透着忧伤,但在那背后,你分阴能够看到一股坚韧、决绝的光芒。 展开更多
关键词 画家 绘画作品 绘画艺术 大猫
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Chryseobacterium chengduensis sp. nov. isolated from the air of captive giant panda enclosures in Chengdu, China 被引量:1
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作者 Cai-fang WEN Li-xin XI +10 位作者 Shan ZHAO Zhong-xiang HAO Lu LUO Hong LIAO Zhen-rong CHEN Rong SHE Guo-quan HAN San-jie CAO Rui WU Qi-gui YAN Rong HOU 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2016年第8期610-618,共9页
A Gram-negative, aerobic, non-motile, rod-shaped bacterial strain, designated 25-1T, was isolated from the air inside giant panda enclosures at the Chengdu Research Base of Giant Panda Breeding, China. Strain 25-1T gr... A Gram-negative, aerobic, non-motile, rod-shaped bacterial strain, designated 25-1T, was isolated from the air inside giant panda enclosures at the Chengdu Research Base of Giant Panda Breeding, China. Strain 25-1T grew optimally at pH 7.0-8.0, at 28-30 ℃ and in the presence of NaCI concentrations from 0.0% to 0.5%. 16S rRNA gene sequence analysis indicated that strain 25-1m belongs to the genus Chryseobacterium within the family Flavo- bacteriaceae and is related most closely to C. camis G81m (96.4% similarity), C. lathyri RBA2-6T (95.8% similarity), and C. zeae JM1085T (95.8% similarity). Its genomic DNA G+C molar composition was 36.2%. The major cellular fatty acids were iso-C15:0 (44.0%), iso-C17:0 3OH (19.8%) and C16:1 ω7c/16:1 ω6c (12.7%). The only isoprenoid quinone was menaquinone 6 (MK-6). The major polar lipids were phosphatidylethanolamine, two unidentified amino lipids and two unidentified lipids. The DNA-DNA relatedness between strain 25-1m and C. lathyri RBA2-6T was 38%. Phenotypic, genotypic, and phylogenetic characteristics indicated that strain 25-1T is a novel member of the genus Chryseobacterium, for which the name C. chengduensis sp. nov. is proposed. The type strain is 25-1T (ccmoc AB2015133T=DSM 100396T). 展开更多
关键词 Chryseobacterium chengduensis Giant panda 16S rRNA sequencing Phylogenetic analysis Strain 25-1T
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