A dinosaur with long display tail feathers

Abizarre bird-like dinosaur recently discovered by paleontologists with the CAS Institute of .Vertebrate Paleontology and Paleoanthropology（IVPP） has rekindled interest in the origin and early evolution of birds. This newly described species, which slightly preceded Archaeopteryx in geological time （around 150-145 million years ago）, surprises its discoverers with an unexpected combination of characteristics from different clades of theropod dinosaurs and some primitive birds. Most strikingly, italso sported two pairs of long primitive feathers on the tail.     

Bully for Apatosaurus

Thin at one end, thicker in the middle, then thin again at the other end, Brontosaurus is one of the most famous dinosaurs. So why do paleontologists call it Apatosaurus? Othniel Charles Marsh coined both names from two relatively complete specimens in the late 1870s. Additional specimens collected during the second American Jurassic dinosaur rush (1895-1905) provided the material for revisions. Henry Fairfield Osborn, who detested Marsh, systematically sought to overturn his work. Yet it was Elmer Samuel Riggs who showed that Marsh's Apatosaurus and Brontosaurus are synonymous, and Osborn who stubbornly, and inexplicably, adhered to the latter.     

The Oldest Known Neoceratopsian Found

A group of Chinese and American dinosaur experts has recently found the most basal known neoceratopsians, a major branch of horned dinosaur, from China's northeastern province of Liaoning, thus revealing some inter esting scenario of this attractive lineage' s misty early evolution.     

The dinosaur from 600 BCE! Interpreting the dragon of Babylon,from archaeological excavation into fringe science

In 1918, German archaeologist Robert Koldewey, excavator of Babylon, Iraq, observed that the depiction of the fantastical “dragon of Babylon” on the sixth century BCE Ishtar Gate must reference a real animal whose closest relatives would be dinosaurs like the iguanodon. Though ignored within archaeology, Koldewey’s comments were taken up in German-American popular science writer Willy Ley’s “romantic zoology” (1941), then by Bernard Heuvelmans (1955), founding figure in the fringe field of cryptozoology. Their interpretations would ultimately inspire expeditions by the International Society of Cryptozoologists in Central Africa to find the Mokele-Mbembe, a “living dinosaur,” and migrate into Young Earth Creationist and ancient aliens theories. An analysis of Koldewey’s marginal academic observation serves as a means of considering the process of knowledge formation and canonization and the unpredictable life of scholarly ideas.     

热河群的恐爪龙类化石及虚骨龙类的演化（英文）

本文详细描述了中国辽西热河群部分恐爪龙类化石的骨骼与皮肤衍生物形态。本研究：1) 提供了有关辽宁恐爪龙类最详细的骨骼学信息；2）提出了羽毛演化的一个新模型；3）综合地分析了虚骨龙类的系统关系；4）分析身体不同部位的信息对复原系统发育的影响及虚骨龙类各个演化阶段身体不同部位的相对演化程度；5）讨论了虚骨龙类的演化趋向，尤其是和飞行起源相关特征的变化。     

Researchers Announce World’s First Dinosaur Preserved Sitting on Nest of Eggs that Includes Fossilized Babies

正A multinational team of researchers has announced a first for the world of paleontology:a dinosaur preserved sitting atop a nest of its own eggs that include fossilized babies inside.The scientific paper describing the discovery was recently published in the journal Science Bulletin.The primary authors are Dr.BI Shundong,professor at Indiana University of Pennsylvania and XU Xing,     

Exceptionally Preserved Eggs and Embryos Reveal the Life History of a Pterosaur

Pterosaur eggs and embryos well preserved with 3-D details help unveil life episodes of this winged dinosaur.     

A Vegetarian in the Meat-eating Theropod Family

A fossil theropod dinosaur discovered in China is thought to be vegetarian, in sharp contrast with its meat-eating cousins, according to research published in Nature on September 19,2002.     

Large Mesozoic Mammals Found to Feed on Young Dinosaurs

Mammals in the Mesozoic era (280 million to 65 million years ago)are commonly pictured as tiny shrew-like creatures that were mainly insectivorous, probably nocturnal and lived in the shadow of the dinosaurs.     

“带羽毛”的恐龙及鸟类起源

鸟类兽脚类恐龙起源说得到了来自世界各地化石证据的支持,而对公众产生最大影响的证据则来自中国带羽毛或者类似羽毛结构的恐龙化石.     

K/T界线的研究进展——兼论元素演化与恐龙灭绝的可能关系

本文通过总结近一、二十年来K/T界线的研究进展和恐龙绝灭的相关假说，认为前人在K/T界线和恐龙灭绝的研究方面确实取得了很大的成果，但同时,大多数的研究都是集中在对灾变大环境的求证上。只有少数学者注意到Co、Cr、Ni、Mn、V等这些在界线处变化较大的元素同时也是生物必需微量元素，而另外一些异常元素（如REE、Pb、Sr等）也可能对生物的正常生理机能产生重要影响，这些元素的异常变化很可能与恐龙灭绝存在着一定的关系，但这方面的系统研究还相当缺乏，今后应加强元素的生物机能和与生命活动密切相关的元素在K/T界线附近的演化与恐龙灭绝的关系等方面的研究。     

Scientific coats of arms

With their mythical creatures and arcane symbolism, coats of arms seem to have little connection with modern science. Yet despite its chivalric origins, the ancient language of heraldry has long fascinated famous scientists. Although this idiosyncratic tradition was parodied by Victorian geologists, who laughingly replaced unicorns and griffins with images of dinosaurs that they had recently discovered, it has been perpetuated since by Ernest Rutherford, who liked to present himself as a new alchemist.     

超越能力峡从“本土”吸收到“当地”吸收

随着全球经济一体化程度的加深,吸收和利用跨国知识溢出逐渐成为发展中国家能力形成和提升的重要途径。本文在全球生产网络的框架下,围绕我国能力的形成和提升,系统讨论了知识吸收的地理区位与我国能力演变的关系。分析显示,通过基于“本土”的知识吸收活动,我国形成了世界级的生产能力,并出现向创新能力跨越的趋势,不过,在创新能力赶上发达国家的过程中,从“当地”吸收外部知识的重要性正在不断增强。     

制度不变性与响应性的悖论——“德治”与“智治”两种组织治理模式的对比

在具有浓厚文化传统的社会中,相关制度条件会影响到组织治理之特定模式的有效性及主导逻辑.基于先秦“道理论”思想内涵及其传承轨迹的梳理,本文在区分制度制定与执行两个环节的有关制度不变性与响应性“悖论”问题的探讨中,对“德治”和“智治”两种不同组织治理模式各自适用的制度条件以及中国业界实践重塑的方向进行了案例分析与理论评述相糅合的研究,使“一(道)与多(理)”、“不变与变”关系命题获得重新审视.     

New Findings on Devonian “Platypus Fish” Cast Light on Evolution of Modern Jawed Vertebrates

正New findings on the brain and inner ear cavity of a 400-million-year-old platypus-like fish cast light on the evolution of modern jawed vertebrates,according to a study led by Dr.ZHU Youan and Dr.LU Jing from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences (CAS).     

创业企业社会网络进化图谱研究

社会网络进化图谱是对创业企业进化过程中社会网络本质特征的经典总结、动态规律的深度挖掘以及演化轨迹的形象描绘,揭示了创业企业进化过程中社会网络的周期性、层次性、对等性、异构性、逆向性等图谱特征。基于创业企业进化过程中社会网络关系维、结构维与规模维的规律性变化,分别设计出了功能——层级性、中心——边缘型与原型——镜映型创业企业社会网络进化图谱,比较分析了3种类型创业企业社会网络进化图谱的度量方式、形成机理及主要特征。     

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.     

基于动态热点的中国光伏产业政策演化研究

为把握我国光伏产业政策发展脉络,对未来产业政策制定提供参考依据,并为进行产业政策评估与优化打下基础,基于社会网络分析与共现分析方法构建政策热点网络,以可视化的形式显示我国光伏产业政策热点的变化,描述政策的动态演化过程;同时根据政策热点的变化以及产业发展过程中的关键事件和政策,将我国光伏产业政策分为5个阶段具体讨论:市场环境培育阶段(1994—2008年)、国内应用市场发展阶段(2009—2012年)、分布式光伏大力推广阶段(2013—2014年)、市场化与智能化阶段(2015—2017年)、政策退坡阶段(2018年至今)。研究发现我国光伏产业政策的演化体现了高质量、多元化、智能化、市场化的发展特征,对此从政策目标、政策手段、政策演化驱动三方面进一步论述。     

日语配偶称呼语“主人”一词的文化观照

语言是思想的外在表现,它反映了社会变化和时代变迁。本文分析了＂主人＂一词的辞典释义和词源,探究词义的形成演变。通过已有的问卷调查了解作为女子配偶称呼语的＂主人＂一词的使用现状,进而考察其存在原因及其发展趋势。     

经济带的形成与演进研究——以长春-吉林经济带为例

文章通过对经济带概念的分析,构建经济带的形成和演进理论,认为经济带有等级、层次之分,其时空演进的理论为增长极理论———点-轴发展理论———梯度推移理论。在此基础上,论证长春-吉林经济带的存在性,分析其结构、功能及空间联系形式。作者认为,长春-吉林经济带目前是一个弱经济带,其扩散效应较弱,随着其扩散效应的增强,长春-吉林经济带将能够从整体上带动和促进吉林省的经济发展。