Results 91 to 100 of about 28,012 (210)

Altering the Coordination of Iron Porphyrins by Ionic Liquid Nanodomains in Mixed Solvent Systems [PDF]

open access: yes, 2017
The solvent environment around iron porphyrin complexes was examined using mixed molecular/RTIL (room temperature ionic liquid) solutions. The formation of nanodomains in these solutions provides different solvation environments for substrates that could
Atifi   +56 more
core   +2 more sources

Instructional Designers and Open Education Practices: Negotiating the Gap Between Intentional and Operational Agency

open access: yesOpen Praxis, 2019
In their role as support to faculty in the course development process, Instructional Designers (IDs) can play an important part in alleviating some of the well-known barriers of open education practices (OEP): faculty time, institutional or faculty ...
Tannis Morgan
doaj   +3 more sources

On the supersingular reduction of K3 surfaces with complex multiplication [PDF]

open access: yes, 2017
We study the good reduction modulo p of K3 surfaces with complex multiplication. If a K3 surface with complex multiplication has good reduction, we calculate the Picard number and the height of the formal Brauer group of the reduction.
Ito, Kazuhiro
core   +1 more source

Effect of the Otago Exercise Programme Combined With Tai Chi Exercises on Reducing the Risk of Fall in Elderly

open access: yesReabilitacijos Mokslai: Slauga, Kineziterapija, Ergoterapija
Background. Falls are a common and serious concern among older adults, especially women, leading to reduced independence, balance problems, and increased mortality.
Pushpanjali Sharma   +5 more
doaj   +1 more source

Novel properties of the Kohn-Sham exchange potential for open systems: application to the two-dimensional electron gas

open access: yes, 2005
The properties of the Kohn-Sham (KS) exchange potential for open systems in thermodynamical equilibrium, where the number of particles is non-conserved, are analyzed with the Optimized Effective Potential (OEP) method of Density Functional Theory (DFT ...
  +7 more
core   +1 more source

Communication between Porphyrin Rings in the Butadiyne-Bridged Dimer Ni(OEP)(μ-C4)Ni(OEP):  A Density Functional Study

open access: yesInorganic Chemistry, 1996
The electronic structure and spectra of a family of nickel porphyrin complexes are analyzed using approximate density functional theory (DFT). The three complexes, Ni(OEP), Ni(OEP-C4SiMe3), and Ni(OEP)(μ-C4)Ni(OEP) represent a logical increase in complexity starting from a simple metalloporphyrin.
Stranger, Robert   +4 more
openaire   +2 more sources

Effect of Supplementation of Trehalose, Glycerol on Conventional Freezing and Vitrification of Boar Sperm

open access: yesJournal of Animal Reproduction and Biotechnology, 2014
The boar sperm has more lipid droplets and specialty of seminal plasma compared with other species, causing difficulties of freezing sperm and decreases for the utilization of frozen semen into the artificial insemination.
Sun-Ho Choi   +7 more
doaj   +1 more source

Electrochemistry and spectroelectrochemistry of iron porphyrins in the presence of nitrite [PDF]

open access: yes, 2001
The reaction of nitrite with ferric and ferrous porphyrins was examined using visible, infrared and NMR spectroscopy. Solutions of either ferric or ferrous porphyrin were stable in the presence of nitrite, with only complexation reactions being observed.
Ryan, Michael D., Wei, Zhongcheng
core   +1 more source

Open content: OER, OEP. Quali scenari per l’educazione?

open access: yesFormare, 2014
Form@re - Open Journal per la formazione in rete, Vol. 14 No. 1 (2014): Open content: OER, OEP. Quali scenari per l’educazione?
openaire   +2 more sources

Mass spectrometry of metalloporhyrins. 1. Mass spectra of octaethylporphines cobalt, nickel, copper

open access: yesТонкие химические технологии, 2010
Mass spectra of octaethylporphyrines of cobalt, nickel, copper with electron ionization were obtained. Molecular ions with isotope peaks and the peaks formed by separation hydrogen atoms from porhyrins core have maximum intensity.
A. A. Perov   +3 more
doaj  

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