Results 51 to 60 of about 221,525 (269)
Advanced Biomedical ResearchBackground: This study was designed to investigate the various extracts of Allium giganteum in term of their cytotoxic effects on gastric and colon cancer cell lines and then fractionation of extract with the most desired effects on cancer cells in ...
Masoud Sadeghi Dinani +2 more
doaj +1 more source
Continued Fractions and Linear Fractional Transformations
Integers, 2014 Rational approximations to a square root $\sqrt{k}$ can be produced by iterating the transformation $f(x) = (dx+k)/(x+d)$ starting from $\infty$ for any positive integer $d$. We show that these approximations coincide infinitely often with continued fraction convergents if and only if $4d^2/(k-d^2)$ is an integer, in which case the continued fraction ...
openaire +5 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan +15 more
wiley +1 more source
Boundary Problems for the Fractional and Tempered Fractional Operators [PDF]
Multiscale Modeling & Simulation, 2018 24 pages, 4 ...
Weihua Deng +3 more
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Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Química NovaThis work was undertaken in the Velhas River Basin, in the municipalities of Rio Acima, Nova Lima, Raposos and Sabará, upstream of the city of Belo Horizonte in Minas Gerais State, Brazil.
Danilo de C. Silva +3 more
doaj +1 more source
Ecosphere, 2015 An important metric of environmental health is food web structure because it reflects species richness, natural history diversity, and resource availability.
R. E. Bowes, J. H. Thorp
doaj +1 more source
Shiyou shiyan dizhi, 2022 Two sets of crude oil samples from the Yangtake structure in the Kuqa Depression of Tarim Basin were analyzed with the aid of GC and GC-MS to evaluate the effect of evaporative fractionation on the distribution and composition of diamondoid hydrocarbon ...
Xi YANG +3 more
doaj +1 more source
Proceedings of the National Academy of Sciences, 2019 An approach to the coalescent, the fractional coalescent ( f -coalescent), is introduced. The derivation is based on the discrete-time Cannings population model in which the variance of the number of ...
Mashayekhi, Somayeh, Beerli, Peter
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source