Results 81 to 90 of about 4,545,606 (290)
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
An Almost Optimal Algorithm for Computing Nonnegative Rank [PDF]
SIAM Journal on Computing, 2013 Summary: Here, we give an algorithm for deciding if the nonnegative rank of a matrix \(M\) of dimension \(m \times n\) is at most \(r\) which runs in time \((nm)^{O(r^2)}\). This is the first exact algorithm that runs in time singly exponential in \(r\).
openaire +6 more sources
The Set of Idempotents in the Weakly Almost Periodic Compactification of the Integers is not Closed [PDF]
, 2000 This paper answers negatively the question of whether the sets of idempotents in the weakly almost periodic compacti?cations of (N; +) and (Z; +) are ...
Pym, J.S., Bordbar, Behzad
core
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
About the cause of the stimulative effect of humate in yeast cultures
Acta Societatis Botanicorum Poloniae, 2015 Trials were undertaken to elucidate the stimulating effect of sodium humate on yeast multiplication and the intensity of their fermentation. This effect appears specifically at pH non-optimal for the medium.
S. Gumiński, J. Sulej
doaj +1 more source
A General Type of Almost Contact Manifolds [PDF]
Among almost contact manifolds Sasakian manifolds, Kenmotsu manifolds (called also “a certain class of almost contact manifolds”) and cosymplectic manifolds have been studied by many authors.
Catalin Angelo Ioan
core
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
STOCHASTIC GROWTH WITH NONCONVEXITIES:THE OPTIMAL CASE [PDF]
This paper studies optimal investment and dynamic behaviour of stochastically growing economies. We assume neither convex technology nor bounded support of the productivity shocks. A number of basic results concerning the investment policy and the Ramsey–
Kazuo Nishimura +2 more
core
Molecular Oncology, EarlyView.Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla +9 more
wiley +1 more source
Book review “Innovation Culture in Crony Capitalism: Does Hofstede’s Model Matter?”
Ekonomski Vjesnik, 2020 Optimal innovation culture enables a strong entrepreneurial economy with a high innovative potential and improved competitiveness on international markets. What is it that determines innovation culture?
Predrag Bejaković
doaj