Zobrazeno 1 - 10
of 11 080
pro vyhledávání: '"D. REN"'
Publikováno v:
Fossil Record, Vol 24, Pp 445-453 (2022)
A new genus and species of fossil wood wasp is described and figured from mid-Cretaceous Kachin amber, representing the first occurrence of the family Xiphydriidae in the fossil record. Paraxiphydria resinata gen. et sp. nov. exhibits typical apomorp
Externí odkaz:
https://doaj.org/article/fd60bda682534dd2886011c962261899
Publikováno v:
Mechanical Sciences, Vol 12, Pp 945-958 (2021)
This paper presents a test device to explore the influence of geometric attributes of the contact surface on a friction coefficient along with sliding speed and contact pressure. Friction tests were conducted on a third-generation high-strength steel
Externí odkaz:
https://doaj.org/article/854bf60000334fc3a1e720049a1ac9ca
Publikováno v:
Fossil Record, Vol 23, Pp 71-74 (2020)
A new species of stem Orthoptera, namely Phtanomiamia gui gen. et sp. nov., is described from the Pennsylvanian Xiaheyan locality in China. Despite the intensive collecting efforts undertaken at this locality, a single forewing was recovered. It shar
Externí odkaz:
https://doaj.org/article/028d96fb089546e19ba04d38126f49ae
Publikováno v:
Fossil Record, Vol 22, Pp 73-76 (2019)
The first discovery of an insect wing from the Taiyuan Formation, near Yangquan City, Shanxi Province, China, is described. The combination of its wing venation characters makes it difficult to assign it to any known major Paleozoic group. The compar
Externí odkaz:
https://doaj.org/article/4c93f53e94444636b4264d80f0e58414
Autor:
E. Drizik, S. Corbett, Y. Zheng, R. Vermeulen, Y. Dai, W. Hu, D. Ren, H. Duan, Y. Niu, J. Xu, W. Fu, K. Meliefste, B. Zhou, Xiaohui Zhang, J. Yang, Bryan Bassig, Hanqiao Liu, M. Ye, Gang Liu, X. Jia, T. Meng, P. Bin, J. Zhang, D. Silverman, A. Spira, N. Rothman, M.E. Lenburg, Q. Lan
Publikováno v:
Environment International, Vol 137, Iss , Pp - (2020)
Background: Diesel engine exhaust (DEE) exposure causes lung cancer, but the molecular mechanisms by which this occurs are not well understood. Objectives: To assess transcriptomic alterations in nasal epithelium of DEE-exposed factory workers to bet
Externí odkaz:
https://doaj.org/article/732ce00cea914753a25c61995f8c5f23
Publikováno v:
Fossil Record, Vol 20, Pp 253-257 (2017)
The Xiaheyan locality is providing abundant material on one of the earliest insect faunas. The most common species are comparatively remote relatives of Orthoptera (grasshoppers, crickets and katydids), belonging to the Archaeorthoptera nec Panort
Externí odkaz:
https://doaj.org/article/5892ae3813dc472fa3bcd69a369e8e94
Autor:
G.V. Nikolajev, D. Ren
Publikováno v:
Кавказский энтомологический бюллетень, Vol 11, Iss 1, Pp 15-18 (2015)
Litholamprima longimana Nikolajev et Ren, gen. et sp. n. of the family Lucanidae is described from the Lower Cretaceous Yixian Formation. Fossils were collected from Chaomidian Village, Liaoning Province, China. The holotype of the new species is dep
Externí odkaz:
https://doaj.org/article/957ffafd81dc4c79b8c703fa8fb0bb14
Publikováno v:
Fossil Record, Vol 16, Iss 2, Pp 171-178 (2013)
Three new species, Grammolingia uniserialis n. sp., Grammolingia binervis n. sp., and Grammolingia sticta n. sp. are described from the Jiulongshan Formation of northeastern China. G. uniserialis n. sp. exhibits a single row of cells in the costal ar
Externí odkaz:
https://doaj.org/article/9093244188f9480995027786a1f9b72b
Publikováno v:
Fossil Record, Vol 16, Iss 1, Pp 117-139 (2013)
Data on Odonatoptera species from the Xiaheyan locality (Ningxia, China; Early Pennsylvanian) described so far are complemented based on abundant new material. Several taxonomic and nomenclatural adjustments are proposed. The species Tupus readi Carp
Externí odkaz:
https://doaj.org/article/5c814fabee384679a6f1bca4854c4c8b
Publikováno v:
Fossil Record, Vol 16, Iss 1, Pp 67-75 (2013)
Lacewings (Neuroptera) normally bear four well-developed wings. There are a few brachypterous, micropterous or apterous species, found in several extant families; this wing reduction is usually associated with flightlessness. The only documented foss
Externí odkaz:
https://doaj.org/article/b405b6c548d74797848500b5c6795849