Results 111 to 120 of about 138,604 (330)

The affine sieve

Journal of the American Mathematical Society, 2013
The authors establish the main saturation conjecture connected with executing a Brun sieve in the setting of an orbit of a group of affine linear transformations. This is carried out under the condition that the Zariski closure of the group is Levi-semisimple. It is likely that this condition is also necessary for such saturation to hold.
Golsefidy, Alireza Salehi, Sarnak, Peter
openaire   +4 more sources

BMI‐1 modulation and trafficking during M phase in diffuse intrinsic pontine glioma

FEBS Open Bio, EarlyView.
The schematic illustrates BMI‐1 phosphorylation during M phase, which triggers its translocation from the nucleus to the cytoplasm. In cycling cells, BMI‐1 functions within the PRC1 complex to mediate H2A K119 monoubiquitination. Following PTC596‐induced M phase arrest, phosphorylated BMI‐1 dissociates from PRC1 and is exported to the cytoplasm via its
Banlanjo Umaru, Deepak Kumar Mishra, Shiva Senthil Kumar, Hao‐Han Pang, Brendan Devine, Komal Khan, Rachid Drissi   +6 more
wiley   +1 more source

Applications of 129Xe and PFG NMR techniques on adsorption and diffusion of molecular sieve materials

Journal of Magnetic Resonance Open
Molecular sieves possess unique properties and have emerged as the predominant catalysts with shape selectivity in the petrochemical industry because of their well-defined pore architectures.
Shushu Gao, Jiamin Yuan, Fangxiu Ye, Zhiqiang Liu, Anming Zheng, Shutao Xu   +5 more
doaj   +1 more source

Tamices moleculares que combinan micro y meso porosidad: una revisión [PDF]

Avances en Química, 2009
Molecular sieves combining micro and mesoporosity: a review. A review of molecular sieves combining micro and mesoporosity is presented. A summary of different routes employed for the preparation of these solids, is showed by citing recent works reported
Carmen M. López*, Virginia Sazo, Caribay Urbina, María G. García   +3 more
doaj  

Novel synthesis of fly-ash-derived Cu-loaded SAPO-34 catalysts and their use in selective catalytic reduction of NO with NH3

Green Energy & Environment, 2019
A combined acid–alkali hydrothermal method was used to prepare fly ash –derived SAPO-34 molecular sieves from a thermal power plant in Inner Mongolia (China). The specific surface area of the prepared fly-ash-derived SAPO-34 molecular sieves was 579 m2 g−
Ge Li, Baodong Wang, Qi Sun, Wayne Qiang Xu, Ziran Ma, Hongyan Wang, Daojun Zhang, Jiali Zhou   +7 more
doaj   +1 more source

The cooperative regulation of miR‐221 by APE1 and AUF1 impacts p27Kip1 defining a miR signature relevant for cervical cancer

FEBS Open Bio, EarlyView.
A regulatory axis involving APE1, AUF1, and miR‐221 is proposed. Pri‐miR‐221 is processed by DROSHA and DICER to generate mature miR‐221, which targets p27Kip1 mRNA. APE1 and AUF1 compete for pre‐miR‐221 binding. Reduced APE1/AUF1 levels impair miR‐221 biogenesis, decrease p27Kip1 mRNA degradation, and promote cell cycle progression, chemoresistance ...
Matilde Clarissa Malfatti, Nicolò Gualandi, Gianluca Tell, Giulia Antoniali   +3 more
wiley   +1 more source

Synthesis of core–shell structured FAU/SBA-15 composite molecular sieves and their performance in catalytic cracking of polystyrene

Science and Technology of Advanced Materials, 2017
Composite molecular sieves, FAU/SBA-15, having core-shell structure were synthesized. The synthesized composite sieves were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy ...
Jinlong Du, Chunwei Shi, Wenyuan Wu, Xue Bian, Ping Chen, Qingzhu Cui, Zhixuan Cui   +6 more
doaj   +1 more source

One-pot, three-component, selective synthesis of the polyfunctionalized 4 H -pyran and 4 H -benzo[ b ]pyran derivatives in the presence of a highly efficient molecular sieve-supported zinc catalyst [PDF]

, 2017
Ágnes Magyar, Zoltán Hell
openalex   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Exon 7 splicing of ERα predicts poor prognosis and increases phenotypic heterogeneity in luminal a subtype breast cancer

FEBS Open Bio, EarlyView.
ERα splice variant ERα∆7 lacks the C‐terminus, and its expression may change phenotypes of breast cancers. Our results showed that ERα∆7 is found in the luminal A subtype, and elevated ERα∆7 levels are linked to improved cell survival with lower proliferation and migration.
Long Wai Tsui, Taobo Hu, Thomson Christian Husein, Wai Hei Shek, Bingrong Chen, Depeng Wang, Shu Wang, Weichuan Yu, Xiaodan Fan, Mengping Long, Toyotaka Ishibashi   +10 more
wiley   +1 more source