Results 31 to 40 of about 1,584,637 (354)
Understanding ionic bonding – a scan across the Croatian education system
, 2016 A study was conducted on the understandings of the accepted model of ionic substances that are held by participants at all levels of the chemical education system in Croatia, including secondary school students, university students, and chemistry ...
Roko Vladušić +2 more
semanticscholar +1 more source
ACS Omega, 2018 The addition of highly polar and aprotic cosolvents to ionic liquids has proven to considerably decrease the viscosity of the solution and improve mass transfer in many chemical reactions.
Yaqin Zhang +3 more
semanticscholar +1 more source
Analysing a Chemistry Lesson on Ionic Bonding: Insights from a Learning Study
SEAQIS Journal of Science EducationThe aim of this paper is to report the insights gained from analysing an online Chemistry lesson on ionic bonding as part of a learning study conducted during the COVID-19 pandemic in 2021.
Vincent Andrew, Hjh Rosinah Hj Sabli
doaj +1 more source
Influence of the structure of ceftazidime on obtaining biologically active cellulosic bandage [PDF]
Hemijska Industrija, 2017 Biologically active fibers as drug carriers have improved characteristics in comparison with conventional medical therapies. Cellulosic fibers as hydrophilic and biocompatible, nontoxic and eco-friendly make a good polymer matrix for obtaining ...
Rodić-Grabovac Branka B. +2 more
doaj +1 more source
Nature Communications, 2022 The properties of actinide complexes depend on the ionic versus covalent nature of the bonds. Here, the authors report that pressure can distort actinide-oxygen bonding; differences seen for Th, U and Np result from the decreasing size of the atoms.
Jacob J. Shephard +8 more
doaj +1 more source
, 2016 Background:Comprehending the subjects and concepts of chemistry requires that students understand the related concepts and ideas, which in turn, develops compatible and consistent knowledge structures.
Senar Temel, Ö. Özcan
semanticscholar +1 more source
FEBS Letters, EarlyView.Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang +5 more
wiley +1 more source
Quantum Chemical Modeling of Hydrogen Bonding in Ionic Liquids
Topics in current chemistry, 2017 Hydrogen bonding (H-bonding) is an important and very general phenomenon. H-bonding is part of the basis of life in DNA, key in controlling the properties of water and ice, and critical to modern applications such as crystal engineering, catalysis ...
P. Hunt
semanticscholar +1 more source
The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity
FEBS Letters, EarlyView.The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley +1 more source
Oxygen Donor Stabilized Alkaline Earth Metal Iodides
CHIMIA, 2003 Alkaline earth metal iodides show ionic behavior in water, but their bonding situation is not that clear in less polar solvents. The alkaline earth metal iodide adducts, i.e. [MI2(thf)5](M = Sr and Ba), [CaI2(L)4] (L = thf, H2O), [Ba(OH)I(H2O)4]
Katharina M. Fromm
doaj +1 more source