Results 61 to 70 of about 3,418 (261)

Specific features of carbon and oxygen stable isotopes (δ13C and δ18O) geochemistry in the isolated carbonate platform section on the east of the Urals (the Famennian and Tournaisian Stages)

Литосфера, 2016
New data about the stable carbon and oxygen isotopic composition for the Frasnian/Famennian and Devonian/Carboniferous boundary intervals, as well as for middle and upper parts of the Tournasian Stage (the Lower Carboniferous), are represented in this ...
G. A. Mizens, V. N. Kuleshov, S. A. Sapurin, T. I. Stepanova, O. L. Petrov   +4 more
doaj   +2 more sources

Main Controlling Factors and Models of Organic Matter Accumulation in Lower Carboniferous Dawuba Formation Shale in Southern Guizhou, China. [PDF]

ACS Omega, 2021
Niu J, Zhang J, Tang X, Yuan K, Lin T, Liu Y, Niu Y, Li P, Li X, Liang Y.   +9 more
europepmc   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Geochemistry of severely biodegraded oils in the Carboniferous volcanic reservoir of the Chepaizi Uplift, Junggar Basin, NW China

Energy Exploration & Exploitation, 2018
A substantial amount of petroleum was recently discovered in the Carboniferous volcanic reservoir of the Chepaizi Uplift in the western Junggar Basin, yet the source is still indefinitive.
Youde Xu, Xiangchun Chang, Bingbing Shi, Yue Wang, Yang Li   +4 more
doaj   +1 more source

LATE CARBONIFEROUS BRACHIOPODS FROM KARAKORUM, PAKISTAN

Rivista Italiana di Paleontologia e Stratigrafia, 1999
Carboniferous rocks from North Karakorum display sharp lateral variations in lithology and thickness suggesting accumulation in half-grabens during continental rifting between the Karakorum block and northern Gondwana. Different Carboniferous successions,
LUCIA ANGIOLINI, HOWARD BRUNTON, ANDREA ZANCHI   +2 more
doaj   +1 more source

Sedimentation Models and Development Mechanisms of Organic-Rich Shales of the Lower Carboniferous Dawuba Formation: A Case Study in the Yaziluo Rift Trough, South of Guizhou Province, Southern China. [PDF]

ACS Omega, 2022
Zheng F, Tang X, Yuan K, Lin T, You M, Niu J, Zi Y, Liang Y.   +7 more
europepmc   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Early diversification of seeds and seed-like structures

Carnets de Géologie, 2005
The seed habit is one of the most important evolutionary acquisition in plant evolution. It allowed colonisation of new ecological niches, leading to a level of diversification never observed before.
Prestianni Cyrille
doaj  

Lower Carboniferous lycopods from Ghana

, 1971
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Mensah, M K, Chaloner, W. G. (William Gilbert)   +1 more
openaire   +2 more sources

The Lower Carboniferous Chert Formations of Derbyshire [PDF]

Geological Magazine, 1921
THE origin of chert has of late been discussed with renewed activity, especially in American scientific journals. Difference of opinion centres mainly round the question of the source of the silica; whether it is of direct inorganic origin, or the result of the solution and redeposition of organic silica.
openaire   +1 more source