Results 111 to 120 of about 203,479 (284)

Conjugates of methylated cyclodextrin derivatives and hydroxyethyl starch (HES): Synthesis, cytotoxicity and inclusion of anaesthetic actives

open access: yesBeilstein Journal of Organic Chemistry, 2014
The mono-6-deoxy-6-azides of 2,6-di-O-methyl-β-cyclodextrin (DIMEB) and randomly methylated-β-cyclodextrin (RAMEB) were conjugated to propargylated hydroxyethyl starch (HES) by Cu+-catalysed [2 + 3] cycloaddition.
Lisa Markenstein   +3 more
doaj   +1 more source

Complexation of DNA with Cationic Surfactant

open access: yes, 1999
Transfection of an anionic polynucleotide through a negatively charged membrane is an important problem in genetic engineering. The direct association of cationic surfactant to DNA decreases the effective negative charge of the nucleic acid, allowing the
Akhtar   +30 more
core   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Behaviour of cerium (III) phosphate in a carbonate-alkaline medium

open access: yesЗаписки Горного института
The article investigates the behaviour of rare earth metals in carbonate-alkaline systems. The results of experimental studies on rare earth element extraction from phosphogypsum, a large-tonnage industrial waste forming in production of phosphoric acid ...
Tatyana E. Litvinova, Stepan A. Gerasev
doaj  

Study on Adsorption and Complexation Behavior of Thiourea on Copper Surface

open access: yesInternational Journal of Electrochemical Science, 2011
The reaction behaviors of various concentrations of thiourea (TU) on copper surface in 0.5 mol/L H2SO4 solution were investigated by electrochemical methods and single crystallogram. Weak interaction occurs at low concentration of TU.
Jie Zhao, Guofeng Cui
doaj   +1 more source

Charged rosettes at high and low ionic strengths

open access: yes, 2002
The complexation between a semiflexible polyelectrolyte and an oppositely charged macroion leads to a multitude of structures ranging from tight complexes with the chain wrapped around the macroion to open multileafed rosette-like complexes.
Schiessel, Helmut
core   +2 more sources

Complex complex numbers

open access: yes, 2020
We apply in the complex numbers the same line of thought that led to the very creation of the complex themselves. In addition, we consider multiple imaginary numbers and generalize both ideas altogether.
openaire   +1 more source

Natural complexity, computational complexity and depth [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2011
Depth is a complexity measure for natural systems of the kind studied in statistical physics and is defined in terms of computational complexity. Depth quantifies the length of the shortest parallel computation required to construct a typical system state or history starting from simple initial conditions.
openaire   +3 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS 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

Complex networks with complex weights

open access: yesPhysical Review E
17 pages, 7 figures, 1 ...
Lucas Böttcher, Mason A. Porter
openaire   +3 more sources

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