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澳大利亚Floreana岛达尔文小树雀喙型与其鸣唱的不相关性(英文)  [PDF]
动物学研究 , 2009, DOI: 10.3724/SP.J.1141.2009.04423
Abstract: 鸟类鸣唱的功能通常是吸引配偶,对于建立繁殖隔离也是非常重要的。现有的研究认为鸟类鸣唱表演可能受到鸟类喙型变化的影响。达尔文鸣雀是一类用来验证喙型和鸣唱表演关系的模型物种,前人的研究认为较低的元音演奏与更大的喙相关。本文用在Floreana岛屿生活的达尔文小树雀(Camarhynchusparvulus)来验证喙型和元音演奏的关系。结果显示,喙型大小与元音演奏之间无相关性。这个发现与过去对小树雀中的研究结果相似,但却与达尔文鸣雀中更大体型的鸟类研究结果相反。讨论了研究结果在物种的生态分化和生态变异之间的前后关系。
关于鸣沙  [PDF]
郑晓静,杨堃
力学与实践 , 2004, DOI: 10.6052/1000-0992-2003-511
Abstract: 概括了国内外学者研究鸣沙发声机理的各种假说,指出通过力学观点来定量描述鸣沙发声机理可以为解决科学前沿关键科学问题做出有益尝试.
江西之鸣山层  [PDF]
地质论评 , 1941,
Abstract: 鸣山位于乐平之西十里,山麓为鄱乐煤矿公司矿井所在。民国十四年,刘季辰氏调查鄱乐煤矿,将鸣山所见岩层定名为鸣山层,其纪载如下:
抚州唱凯堤决堤留给审计的思考  [PDF]
项荣
财会月刊 , 2010,
Abstract:   目前,国家审计在国家经济社会运行中发挥免疫系统功能的定位正逐步得到社会普遍认同。国家审计最根本的目标,就是发现经济社会运行过程中的风险和隐患,保障国家利益,保护人民利益。然而,抚州唱凯堤溃决向我们敲响了国家审计存在缺陷的警钟。    一、唱凯堤除险加固未纳入审计范畴暴露了审计立项模式存在的缺陷  江西抚州唱凯堤是保护12亩耕地、14万人口的重要堤坝,保证堤坝坚固是利国利民的民生工程,除了正常的财政资金投入、施工加固等制度安排外,对该工程的全程审计监督也是非常必要的。早在2006年4月12日,抚州市发展和改革委员会主任在《抚州市2005年国民经济和社会发展计划执行情况与2006年国民经济和社会发展计划草案的报告》中就指出:要加大对农业基础设施投入,实施唱凯堤等除险加固工程。当地地方审计机关是否对此进行审计跟踪取决于审计机关年度计划的立项。我国现行《审计法》只规定了审计机关的职责,只是说明了其属于审计机关的审计范围,但没有强制性规定一定要审计。要对唱凯堤坝除险加固进行审计监督就首先要将其纳入审计机关的工作计划,而《审计法实施条例》对审计机关年度审计立项也只作了原则性规定。
损毁LMAN逆转去势引起的成年雄鸟鸣曲变化
Castrating-Induced Song Change in Adult Male Zebra Finch (Taeniogygia guttata)is Reversed by LMAN Lesion
 [PDF]

张近春, 王松华, 李东风
ZHANG Jinchun
,WANG Songhua,LI Dongfeng

- , 2016, DOI: 10.6054/j.jscnun.2016.05.011
Abstract: 以成年雄性斑胸草雀为研究对象,去势后成年雄鸟鸣曲空间结构显著改变,平均频率和峰频率下降,主题曲相似度降低,鸣曲稳定性下降;损毁LMAN后,平均频率、峰频率、主题曲相似度都恢复到去势前水平. 去势引起鸣曲结构和稳定性变化. 损毁LMAN逆转鸣曲的变化表明LMAN对雄激素(睾酮)调节鸣曲变化至关重要.
: Adult male zebra finches were castrated and the song was acoustic analyzed. It was found that the spatial structure of birdsong changed significantly, the mean frequency, peak frequency and similarity of the motifs decreased, the stability of song decreased after castration. Castrating-induced song changes of structure and stability were reversed by LMAN lesion, suggested that LMAN contributes to the effect of testosterone on song regulation
The zebra finch neuropeptidome: prediction, detection and expression
Fang Xie, Sarah E London, Bruce R Southey, Suresh P Annangudi, Andinet Amare, Sandra L Rodriguez-Zas, David F Clayton, Jonathan V Sweedler
BMC Biology , 2010, DOI: 10.1186/1741-7007-8-28
Abstract: Complementary bioinformatic resources were integrated to survey the zebra finch genome, identifying 70 putative prohormones. Ninety peptides derived from 24 predicted prohormones were characterized using several MS platforms; tandem MS confirmed a majority of the sequences. Most of the peptides described here were not known in the zebra finch or other avian species, although homologous prohormones exist in the chicken genome. Among the zebra finch peptides discovered were several unique vasoactive intestinal and adenylate cyclase activating polypeptide 1 peptides created by cleavage at sites previously unreported in mammalian prohormones. MS-based profiling of brain areas required for singing detected 13 peptides within one brain nucleus, HVC; in situ hybridization detected 13 of the 15 prohormone genes examined within at least one major song control nucleus. Expression mapping also identified prohormone messenger RNAs in areas associated with spatial learning and social behaviours. Based on the whole-genome analysis, 40 prohormone probes were found on a commonly used zebra finch brain microarray. Analysis of these newly annotated transcripts revealed that six prohormone probes showed altered expression after birds heard song playbacks in a paradigm of song recognition learning; we partially verify this result experimentally.The zebra finch peptidome and prohormone complement is now characterized. Based on previous microarray results on zebra finch vocal learning and synaptic plasticity, a number of these prohormones show significant changes during learning. Interestingly, most mammalian prohormones have counterparts in the zebra finch, demonstrating that this songbird uses similar biochemical pathways for neurotransmission and hormonal regulation. These findings enhance investigation into neuropeptide-mediated mechanisms of brain function, learning and behaviour in this model.Songbirds, including zebra finches (Taeniopygia guttata), are well-established model organ
鸣沙发声的奥秘
施燕妹,王明东
现代物理知识 , 1998,
Abstract: 在自然界的特定环境下,沙粒偶尔会发出浑厚的上低音和尖厉的高音 我国甘肃省境内的月牙泉鸣沙坡,就是以此景而扬名海内外的,这是为什么呢?国内外学者就此奥秘进行了研究,找到了答案.不久人们就能用一定的技术和方法对普通沙粒进行处理,使它们也能演奏
“听唱新翻杨柳枝”——科普出版的新景致  [PDF]
陈芳烈
科技与出版 , 2013,
Abstract: 与其他各行各业一样,科普出版面貌的进一步改变,仍然需要我们不断地创新,追随读者需求、阅读兴趣和阅读方式的变化,去发掘新的题材,探索新的传播方式。正是“劝君莫奏前朝曲,听唱新翻杨柳枝”。
鸣鸣蝉发声肌的结构观察  [PDF]
杨新宇,蒋锦昌
昆虫学报 , 1995,
Abstract: 鸣鸣蝉OnvotympanamaculaticollitMotsch的发声肌平均含193个初级肌束,多数初级肌束含9-10条肌纤维,其顶、底瑞的附着结构仅由柱状粘和细胞层组成。每条肌纤维约含1900根肌原纤维,多数肌原纤维的长,宽和截面分别约0.77μm、0.68μm和0.53μm2.井约含200根粗肌丝,其粗细肌丝的比值一般为3∶1。肌小节的长度和z线的宽度分别约3μm和0.2μm.三联管分别位于距两端z线约0.75μm处。肌原纤维、线粒体和微气管-肌质网的面积系数分别约31.3%、46.O%和11.9%。肌小节中粗肌丝纵贯两端z线,中间无1带;细肌丝由z线相向延伸到肌小节中央,其空区约0.15-0.25μm,并无M线。这些结构特征不仅使发声肌能够利用有限的几何空间产生最大的张力,并可适应高速串的收缩运动。
Charged analogue of Finch-Skea stars  [PDF]
S. Hansraj,S. D. Maharaj
Physics , 2006, DOI: 10.1142/S0218271806008826
Abstract: We present solutions to the Einstein-Maxwell system of equations in spherically symmetric gravitational fields for static interior spacetimes with a specified form of the electric field intensity. The condition of pressure isotropy yields three category of solutions. The first category is expressible in terms of elementary functions and does not have an uncharged limit. The second category is given in terms of Bessel functions of half-integer order. These charged solutions satisfy a barotropic equation of state and contain Finch-Skea uncharged stars. The third category is obtained in terms of modified Bessel functions of half-integer order and does not have an uncharged limit. The physical features of the charged analogue of the Finch-Skea stars are studied in detail. In particular the condition of causality is satisfied and the speed of sound does not exceed the speed of light. The physical analysis indicates that this analogue is a realistic model for static charged relativistic perfect fluid spheres.
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