Results 81 to 90 of about 59,532 (299)

Solving acid-base equilibria: Some concerns [PDF]

Journal of Chemical Education, 1992
The simplest way to solve the problem of pH calculation related to c mol/L solutions of certain weak acids and salts.
openaire   +1 more source

Concentration dependent tautomerism in green [Cu(HL1)(L2)] and brown [Cu(L1)(HL2)] with H2L1 = (E)-N’-(2-hydroxy-3-methoxybenzylidene)- benzoylhydrazone and HL2 = pyridine-4-carboxylic (isonicotinic) acid [PDF]

, 2011
The in situ formed hydrazone Schiff base ligand (E)-N’-(2-hydroxy-3-methoxybenzylidene)-benzoylhydrazone (H2L1) reacts with copper(II) acetate in ethanol in the presence of pyridine-4-carboxylic acid (isonicotinic acid, HL2) to green-[Cu(HL1)(L2)]・H2O ...
Ghorbanloo, Massomeh, Hosseini Monfared, Hassan, Janiak, Christoph, Mahdavi Yeganeh, Mahdi, Mayer, Peter, Vahedpour, Morteza   +5 more
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Influence of Temperature, Hypercapnia, and Development on the Relative Expression of Different Hemocyanin Isoforms in the Common Cuttlefish Sepia officinalis [PDF]

, 2012
The cuttlefish Sepia officinalis expresses several hemocyanin isoforms with potentially different pH optima, indicating their reliance on efficient pH regulation in the blood.
Gutowska, Magdalena A., Hu, Marian Y.A., Lieb, Bernhard, Lucassen, Magnus, Mark, Felix Christopher, Melzner, Frank, Pörtner, Hans-Otto, Strobel, Anneli   +7 more
core   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

STUDY OF ELECTROCHEMICAL BEHAVIOR OF VI-B GROUP METAL OXIDES IN TUNGSTATE MELT

Studia Universitatis Babes-Bolyai Chemia
Thermodynamic assessment of the probability of interaction of metal oxides of group VI-B with tungstate melts, the results of the study of the acid-base properties of tungstate melt by potentiometric method.
Victor MALYSHEV, Angelina GAB, Ana-Maria POPESCU, Virgil CONSTANTIN   +3 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

Potentiometric investigation of acid-base equilibria of two newv pyrimidine derivatives in various methanol–water media [PDF]

Journal of the Serbian Chemical Society, 2006
The acid-base properties of 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one (L1) and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione (L2) were investigated potentiometrically at an ionic strength of 0.10M(LiCl) in 19.8, 33.6 and 55.9 % (v/v) methanolâ ...
HASAN KILIÇ, BİROL ER
doaj  

Study of β-Cyclodextrin Effect on Acidity Constant of 2-(2H-Benzo(d)(1,2,3) triazol-2-yl) phenol by Spectrophotometry

E-Journal of Chemistry, 2010
The interaction of solutes with β-cyclodextrin leads to apparent changes in their chemical properties, such as shifts in their absorption spectra and acid-base equilibrium.
Amir H. M. Sarrafi, Elahe Konoz, Negin Ghorashi   +2 more
doaj   +1 more source

Dynamical effects induced by long range activation in a nonequilibrium reaction-diffusion system

, 2002
We both show experimentally and numerically that the time scales separation introduced by long range activation can induce oscillations and excitability in nonequilibrium reaction-diffusion systems that would otherwise only exhibit bistability.
A.R. Gourlay, A.R. Gourlay, D. Horváth, D. Sníta, E. Dulos, E. Dulos, F. Gauffre, I. Lengyel, I. Nagypal, J. Boissonade, J. Boissonade, J. Boissonade, J.E. Pearson, K.J. Lee, K.J. Lee, M. Fuentes, M. Fuentes, M. N. Kuperman, P. Blanchedeau, P. Blanchedeau, P. De Kepper, P. De Kepper, P. Deuflhard, P. Kaps, Q. Ouyang, Q. Ouyang, V. Castets, V. Dufiet, Z. Noszticzius, Á. Tóth, Á. Tóth   +30 more
core   +1 more source