Understanding of neuro-dynamics of a complex higher cognitive process, Working Memory (WM) is challenging. In WM, information processing occurs through four subsystems: phonological loop, visual sketch pad, memory buffer and central executive function (CEF). CEF plays a principal role in WM. In this study, our objective was to understand the neurospatial correlates of CEF during inhibition and ...

We have found that double-stranded cDNA synthesized in extended reactions by avian myeloblastosis virus reverse transcriptase is suitable substrate for a variety of restriction endonucleases. Experiments in which rabbit reticulocyte mRNA was reverse-transcribed and restricted to generate beta-globin-specifihe nucleotide sequence of beta-globin mRNA. This method has been applied to study collage...

During oxygenic photosynthesis, metabolic reactions of CO2 fixation require more ATP than is supplied by the linear electron flow operating from photosystem II to photosystem I (PSI). Different mechanisms, such as cyclic electron flow (CEF) around PSI, have been proposed to participate in reequilibrating the ATP/NADPH balance. To determine the contribution of CEF to microalgal biomass productiv...

We have used an isometric force transducer to study contraction of two types of nonmuscle cells in tissue culture. This method permits the quantitative measurement of contractile force generated by cells of defined type under the influence of external agents while allowing detailed morphological observation. Chick embryo fibroblasts (CEF), which form a contractile network inside a collagen matr...

Sensitive liquid-phase measurements have been made in a 20 cm cell using broadband cavity enhanced absorption spectroscopy (BBCEAS). The cavity was formed by two high reflectivity mirrors which were in direct contact with the liquid-phase analytes. Careful choice of solvent was required to minimise the effect of background solvent absorptions. Measurements were made on the broad absorber Sudan ...

The recent emergence and transmission of Neisseria gonorrhoeae isolates with reduced susceptibility to expanded-spectrum cephalosporins such as cefixime and ceftriaxone have been reported. The aim of this study was to determine the correlation of different polymorphisms in the penA, mtrR, porB1b (penB), and ponA genes of N. gonorrhoeae with reduced susceptibility to cefixime and ceftriaxone. Ei...

We tested the hypothesis that ferredoxin (Fd) limits the activity of cyclic electron flow around PSI (CEF-PSI) in vivo and that the relief of this limitation promotes the non-photochemical quenching (NPQ) of Chl fluorescence. In transplastomic tobacco (Nicotiana tabacum cv Xanthi) expressing Fd from Arabidopsis (Arabidopsis thaliana) in its chloroplasts, the minimum yield (F(o)) of Chl fluoresc...

Objectives: The study was conducted for the purpose of determining validity and reliability “Undergraduate Nursing Clinical Evaluation Form (CEF)” in a Turkish sample. Methods: One hundred sixty-seven students enrolled Faculty Health Sciences Department participated study. Study data were collected via Student Description CEF. Cronbach's α internal consistency coefficient calculated total scale...

Host range mutants of Schmidt-Ruppin v-src that transform chicken embryo fibroblasts (CEF) but not Rat-2 cells were generated previously by linker insertion-deletion mutagenesis (J. E. DeClue and G. S. Martin, J. Virol. 63:542-554, 1989). One of these mutants, SRX5, in which Tyr-416 is substituted by the sequence Ser Arg Asp, retained high levels of kinase activity in vitro and in vivo, both in...