Results 71 to 80 of about 1,084,291 (336)
Homologous Flux Ropes Observed by SDO/AIA
, 2013 We firstly present the Solar Dynamics Observatory observations of four homologous flux ropes in active region (AR) 11745 on 2013 May 20-22. The four flux ropes are all above the neutral line of the AR, with endpoints anchoring at the same region, and ...
Li, Ting, Zhang, Jun
core +1 more source
Mutations in pathways depending on BRCA1 and BRCA2 may increase cancer risks from an environmental carcinogen [PDF]
, 2011 Recently, the President’s Cancer Panel [2008-2009] protested that preventive action is not taken when uncertainty exists about potential harm from a chemical, because the US regulatory approach demands that a hazard be incontrovertibly ...
Bernard Friedenson
core +2 more sources
Advances in Mathematics, 2010 We introduce the notion of "covering homology" of a commutative ring spectrum with respect to certain families of coverings of topological spaces. The construction of covering homology is extracted from Bokstedt, Hsiang and Madsen's topological cyclic homology.
Brun, Morten +2 more
openaire +2 more sources
Journal of High Energy Physics, 2007 29 pages, 3 eps figures, added Report ...
Collinucci, Andrés, Evslin, JARAH J
openaire +3 more sources
Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target
FEBS Letters, EarlyView.This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz +5 more
wiley +1 more source
Homologous Pairing between Long DNA Double Helices
, 2016 Molecular recognition between two double stranded (ds) DNA with homologous sequences may not seem compatible with the B-DNA structure because the sequence information is hidden when it is used for joining the two strands.
Mazur, Alexey K.
core +1 more source
Hydrogen bonding as a clustering agent in protic ionic liquids: like-charge vs opposite-charge dimer formation [PDF]
, 2018 The local structure of a series of homologous protic ionic liquids (PILs) is investigated using ab initio computations and ab initio-based molecular dynamics. The purpose of this work is to show that in PILs the network of hydrogen bonds may promote like-
Adenusi, Henry +3 more
core +3 more sources
Cyclic homology and equivariant homology
Inventiones Mathematicae, 1987 Given an associative algebra \(A\) over a commutative ring, A. Connes introduced its cyclic homology \(HC_*(A)\). Let \(HP_*(A)\) and \(HC^- _*(A)\) be the homologies of the related periodic complex and its negative part. Of particular importance in topology are the cases where \(A\) is the cochain algebra \(S^*X\) of a topological space \(X\) or the ...
openaire +3 more sources
FEBS Letters, EarlyView.Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur +5 more
wiley +1 more source
Pacific Journal of Mathematics, 1984 The author is concerned with the following question: Does every closed, orientable, irreducible 3-manifold M with \(\pi_ 1(M)\) infinite have a finite sheeted cover \(\tilde M\) with infinite \(H_ 1(\tilde M) ?\) Such an \(\tilde M\) would be a Haken manifold, so the positive answer to this question would imply existence of finite sheeted Haken covers ...
openaire +3 more sources