نتایج جستجو برای: level models
تعداد نتایج: 1886034 فیلتر نتایج به سال:
In this paper, we define a splitting scheme for the [Formula: see text]-level Bloch model which makes use of exact numerical solutions sub-equations. These involve matrix exponentials want to avoid calculate at each time-step. The resulting is nonstandard and preserves qualitative properties equations. We explore compare numerically multiple ways implement it in particular take into account spe...
with the introduction of communicative language teaching, a large number of studies have concerned with students’ oral participation in language classrooms. although the importance of classroom participation is evident, some language learners are unwilling to engage in oral activities. this passivity and unwillingness to participate in language classroom discussions is known as “reticence”. rev...
the present research study attempted to find out the extent to which two pre-task activities of “glossary of unknown vocabulary items” and “content related support” assisted efl language learners with their performance on listening comprehension questions across two different proficiency levels (low and high). data for this study were obtained from a total of 120 language learners, female and m...
Three-factor interaction for the two-level, three-level, and four-level factorial designs was studied. A new technique and formula based on the coefficients of orthogonal polynomial contrast were proposed to calculate the effect of the three-factor interaction The results show that the proposed technique was in agreement with the least squares method. The advantages of the new technique are 1) ...
BACKGROUND Meta-analytical methods are frequently used to combine dose-response findings expressed in terms of relative risks. However, no methodology has been established when results are summarized in terms of differences in means of quantitative outcomes. METHODS We proposed a two-stage approach. A flexible dose-response model is estimated within each study (first stage) taking into accoun...
A two-stage design is cost-effective for genome-wide association studies (GWAS) testing hundreds of thousands of single nucleotide polymorphisms (SNPs). In this design, each SNP is genotyped in stage 1 using a fraction of case-control samples. Top-ranked SNPs are selected and genotyped in stage 2 using additional samples. A joint analysis, combining statistics from both stages, is applied in th...
BACKGROUND HIV infection among children, particularly those under 24 months of age, is often rapidly progressive; as a result guidelines recommend earlier access to combination antiretroviral therapy (cART) for HIV infected children. Losses to follow-up (LTFU) and death in the interval between diagnosis and initiation of ART profoundly limit this strategy. This study explores correlates of LTFU...
Autonomous vehicles (AVs) must share space with pedestrians, both in carriageway cases such as cars at pedestrian crossings and off-carriageway delivery navigating through crowds on pedestrianized high-streets. Unlike static obstacles, pedestrians are active agents complex, interactive motions. Planning AV actions the presence of thus requires modelling their probable future behavior well detec...
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