It is now widely recognized that geochemical survey data are compositional in nature, with each component having relative importance as part of a whole. Compositional analysis (CoDA) based on log-ratio transformations can be used to deal the ‘sum one’ constraint. This study explored use two data-driven CoDA approaches, centered (clr)-biplot and compositional-balance approach, investigate associ...

abstract this study was an attempt to investigate the effect of collaborative form-focused activities on grammar learning of elementary efl learners. to this end, 58 adult male iranian efl learners at elementary level of proficiency in three classes of language institutes were chosen. they formed the three groups of the study. the grammar section of cambridge michigan placement test was used to...

Meditation is becoming increasingly popular as a topic for scientific research and theories on meditation are becoming ever more specific. We distinguish between what is called focused Attention meditation, open Monitoring meditation, and loving kindness (or compassion) meditation. Research suggests that these meditations have differential, dissociable effects on a wide range of cognitive (cont...

Multiple principal component alloy systems are a new class of alloys that can provide interesting combinations functional and mechanical properties. Due to the multiple components, their interactions complex, structural stabilities often not easily predicted. Prediction parameter biplots offer good way distinguish between different compositions. The enthalpy mixing is one used in such biplots. ...

Background/introduction Anti-tumor immune response caused by High Intensity Focused Ultrasound (HIFU) therapy has been a subject of controversy. Most agree that the response is more likely to be induced by mechanical, rather than thermal effects of HIFU. The goal of the current work was to study the effect of HIFU-induced liquefaction of a tumor on tumor-specific and non-specific T-cell mediate...

UNLABELLED We have developed a program for microarray data analysis, which features the false discovery rate for testing statistical significance and the principal component analysis using the singular value decomposition method for detecting the global trends of gene-expression patterns. Additional features include analysis of variance with multiple methods for error variance adjustment, corre...

In the era of big data, capacity to produce textual documents is increasing day by day. Our ability generate large amounts information has impacted our lives at both individual and societal levels. Science not escaped this evolution either, it often difficult quickly reliably “stand on shoulders giants”. Text mining presented as a promising mathematical solution. However, yet convinced qualitat...

this study was conducted to determine drought tolerance genotypes with superiority in different stressed environments. to screening quantitative indices of drought tolerance, genotypes of safflower (carthamus tinctorius l.) were tested in a complete randomized block design with three replications under two different water regimes (irrigated and rainfed). significant positive correlation was fou...