نتایج جستجو برای: latent
تعداد نتایج: 55941 فیلتر نتایج به سال:
A study was conducted to assess the durable resistance in a near isogenic line of spring wheat (Triticum aestivalis L.), possessing resistance gene Yr-18 to some isolates (race specific resistance) of stripe rust (Puccinia striiformis f. sp. tritici), namely Thatcher Yr-18 and durable resistance of an cultivar of spring wheat to all isolates of stripe rust (race non- specific resistance), namel...
This chapter gives an applied introduction to latent profile and class analysis (LPA/LCA). LPA/LCA are model-based methods for clustering individuals in unobserved groups. Their primary goals probing whether and, if so, how many classes can be identified the data estimating their proportional size response profiles. Moreover, membership serve as a predictor or outcome external variables. Substa...
background & aim: in the survival data with long-term survivors the event has not occurred for all the patients despite long-term follow-up, so the survival time for a certain percent is censored at the end of the study. mixture cure model was introduced by boag, 1949 for reaching a more efficient analysis of this set of data. because of some disadvantages of this model non-mixtur...
background: myofascial pain syndrome is a significant source of mechanical pain. the aim of this study was to investigate the effects of arm movement on reaction time in females with latent and active upper trapezius myofascial trigger point. methods: in this interventional study, a convenience sample of fifteen women with one active mtp, fifteen women with one latent mtp in the upper trapezius...
background: toxoplasmosis is one of the prevalent parasitic diseases in the world with 10-40 percent of people having it as a latent infection. in cases of renal transplants, the condition either presents itself as a result of reactivation of the latent infection resulting in the weakness of immune system in a recipient or happens when a recipient simply contracts the condition from the donor t...
background: prompt diagnosis and treatment of latent tuberculosis (tb) infection (ltbi) are needed to control tb. the aim of the study was to compare the performance of quanti feron-tb test (qft) with conventional tst for the diagnosis of ltbi. methods: in this analytical - comparison study, we enrolled 87 nurses working in teaching hospitals in ahvaz. all study subjects were tested by tst. ts...
results almost 8% of the personnel showed positive tst (over 10 mm) reaction while 29% of them had considerable t - cell reactivity against ppd in elispot assays. however, the esat - 6 reactivity was found only in one case of hcws. no correlation was found between the patterns of the reactions and the age or the duration of the employment or previous vaccination history of the participants. the...
Latent Semantic Analyis (LSA) consists in the use of SVD-based dimensionality-reduction to reduce the high dimensionality of vector representations of documents, where the dimensions of the vectors correspond simply to word counts in the documents. We show that that there are two contending, inequivalent, formulations of LSA. The distinction between the two is not generally noted and while some...
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