A carbon fiber/epoxy resin prepreg was tested by DSC, and the phenomenological nth-order autocatalytic reaction curing kinetic models of were established. On this basis, optimum process obtained. In addition, in order to explore effect ply parameters on mechanical properties laminates, thermomechanical laminates [0]10, [+ 45/ − 45]5s [0/90]5s, prepared compression molding, investigated. The res...

In eukaryotes, ribosomal 5S rRNAs are products of multigene families organized within clusters of tandemly repeated units. Accumulation of genomic data obtained from a variety of organisms demonstrated that the potential 5S rRNA coding sequences show a large number of variants, often incompatible with folding into a correct secondary structure. Here, we present results of an analysis of a large...

A physical chromosome mapping of the H1 histone and 5S and 18S ribosomal RNA (rRNA) genes was performed in interspecific hybrids of Pseudoplatystoma corruscans and P. reticulatum. The results showed that 5S rRNA clusters were located in the terminal region of 2 chromosomes. H1 histone and 18S ribosomal genes were co-localized in the terminal portion of 2 chromosomes (distinct from the chromosom...

We have applied the Pipas-McMahon algorithm based on free energy calculations to the search for a 5S RNA base-pair structure common to all known sequences. We find that a 'Y' shaped model is consistently among the structures having the lowest free energy using 5S RNA sequences from either eukaryotic or prokaryotic sources. Compaison of this 'Y' structure with models which have recently been pr...

The genes for tranfer ribonucleic acid (tDNA) and 5S ribonucleic acid (5SDNA) were isolated from the total deoxyribonucleic acid (DNA) of Escherichia coli. The relatedness of tDNA and 5S from E. coli and other species of Enterobacteriaceae was determined by reassociation of the isolated genes labeled with 32PO4 to unlabeled, unfractionated DNA. Double-stranded DNA was separated from unreacted D...

Two new monoterpenes: ((1S,2R,3R,5S)-2-hydroxymethyl-6,6-dimethylbicyclo[3.1.1]heptane-2,3diol (1) and (3R)-6,6-dimethyl-4-methylenebicyclo[3.1.1]heptane-1,3-diol-3-O-β-D-glucopyranoside (2), along with three known compounds, namely, sobrerol (3), (1R,2S,5S)-2,8-p-menth-diol (4) and (lR,5S)-10hydroxyverbenon (5), were isolated from aerial part of Tithonia diversifolia. Their structures were det...

The spliced leader RNA genes of Bodo saltans, Cryptobia helicis and Dimastigella trypaniformis were analyzed as molecular markers for additional taxa within the suborder Bodonina. The non-transcribed spacer regions were distinctive for each organism, and 5S rRNA genes were present in Bodo and Dimastigella but not in C. helicis. Two sequence classes of 5S rRNA were evident from analysis of the b...

One week of solitary confinement of prison inmates produced significant changes in their EEG frequency and visual evoked potentials (VEP) that parallel those reported in laboratory studies of sensory deprivation. EEG frequency declined in a nonlinear manner over the period. VEP latency, which decreased with continued solitary confinement, was shorter for these 5s than for control 5s whose VEP l...

esophageal squamous cell carcinoma (escc) is a deadly cancer with poor prognosis. in this regard, early diagnosis is of vital importance to cure the tumor in its early stages. novel cancer diagnostic and therapeutic approaches have been recently introduced based on micrornas (mirnas). also, accurate normalization using appropriate reference genes is a critical step in mirna expression studies. ...