搜索结果: 1-15 共查到“理学 genus”相关记录157条 . 查询时间(0.171 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Recent developments on random hyperbolic surfaces of large genus
大属随机 双曲曲面 球面几何
2023/4/21
In this talk, we report several very recent asymptotic results on certain classical geometric quantities viewed as random variables on the moduli space of Riemann surfaces for large genus (and many cu...
中国地质大学科学技术发展院胡家铭（硕士生），盛桂莲*等，环境学院/BGEG国家重点实验室，Proceedings of the Royal Society B: Biological Sciences (2021), Ancient mitochondrial genomes from Chinese cave hyenas provide insights into the evolutionary history of the genus Crocuta（图）
中国；洞鬣狗；古线粒体；基因组；斑鬣狗属；演化历史
2021/10/15
2021年1月27日，中国地质大学赖旭龙教授领导的古DNA研究团队与德国波兹坦大学、丹麦哥本哈根大学等单位合作研究的成果“Ancient mitochondrial genomes from Chinese cave hyenas provide insights into the evolutionary history of the genus Crocuta（中国洞鬣狗古线粒体基因组为斑鬣狗...
New genus of bacteria found living inside hydraulic fracturing wells
bacteria living hydraulic fracturing wells
2016/9/12
Researchers analyzing the genomes of microorganisms living in shale oil and gas wells have found evidence of sustainable ecosystems taking hold there—populated in part by a never-before-seen genus of ...
Selecting plants with increased total polyphenol oxidases in the genus Trifolium
expression analysis polyphenolic enzyme protein quality Trifolium medium Trifolium pratense
2015/12/29
One of the aims in red clover (Trifolium pratense) breeding is to increase the polyphenol oxidase (PPO) activity, which may effectively reduce protein breakdown in silage and when cattle are fed by fr...
Origins of diverse feeding ecologies within Conus, a genus of venomous marine gastropods
Gastropoda Conus molecular phylogeny
2015/12/17
Specialized predators on polychaetes, fishes, hemichordates or other molluscs, members of the predominantly
tropical gastropod genus Conus diversified rapidly during the Miocene to consti...
Strong Reproductive Isolation between Closely Related Tropical Sea Urchins (genus Echinometra)’
Reproductive Isolation Closely Related
2015/12/17
Morphological, mitochondrial DNA, and single-copy nuclear DNA differences show
that the tropical sea urchin Echinometra mathaei is composed of at least four
independent gene pools. Evolutionary di...
A Desingularization of the Main Component of the Moduli Space of Genus-One Stable Maps into P n
Genus-One Stable Maps Moduli
2015/7/14
We construct a natural smooth compacti cation of the space of smooth genus-one curves with
k distinct points in a projective space. It can be viewed as an analogue of a well-known smooth
compacti ca...
RECURSIONS FOR CHARACTERISTIC NUMBERS OF GENUS ONE PLANE CURVES
CHARACTERISTIC PLANE CURVES
2015/7/14
Characteristic numbers of families of maps of nodal curves to P2 are de ned as
intersection of natural divisor classes. (This de nition agrees with the usual de nition for
families of plane curves.)...
GENUS 0 AND 1 HURWITZ NUMBERS: RECURSIONS, FORMULAS, AND GRAPH-THEORETIC INTERPRETATIONS
RECURSIONS FORMULAS GRAPH-THEORETIC
2015/7/14
We derive a closed-form expression for all genus 1 Hurwitz numbers, and give a
simple new graph-theoretic interpretation of Hurwitz numbers in genus 0 and 1. (Hurwitz
numbers essentially count irred...
PRIME SPECIALIZATION IN HIGHER GENUS II
Bateman–Horn conjecture Hardy–Littlewood conjecture
2015/7/6
We continue the development of the theory of higher-genus M¨obius periodicity
that was studied in Part I for odd characteristic, now treating asymptotic questions and
the case of characteristic 2. T...
Earliest known fossil of the genus Homo dates to 2.8 to 2.75 million years ago
the genus Homo dates 2.8 2.75 million years ago
2015/3/18
UNIVERSITY PARK, Pa. -- The earliest known record of the genus Homo -- the human genus -- represented by a lower jaw with teeth, recently found in the Afar region of Ethiopia, dates to between 2.8 and...
Notes on the morphology of the nervous system of the Carolina Locust, Dissosteira carolina L. [and] North American species of the Genus Sceliphron
Locusts Scheliphron
2015/1/24
Notes on the morphology of the nervous system of the Carolina Locust, Dissosteira carolina L. [and] North American species of the Genus Sceliphron.
Sarcophagidae of New England: Genus Sarcophaga.
The genera of diaspinae of North America and the genus lepidosaphes
genera of diaspinae North America genus lepidosaphes
2015/1/24
The genera of diaspinae of North America and the genus lepidosaphes.
Studies in the genus Hydnocera Newman: the species of the New England states
Cleridae the New England states
2015/1/22
Studies in the genus Hydnocera Newman: the species of the New England states。