نتایج جستجو برای: null point
تعداد نتایج: 567690 فیلتر نتایج به سال:
no association of gstm1 null polymorphism with endometriosis in women from central and southern iran
background: endometriosis is one of the most common gynecologic disorders. it is a complex trait and both genetic and environmental factors have been implicated in its pathogenesis. there is growing evidence indicating that exposure to environmental contaminants is a risk factor for endometriosis. glutathione-s-transferase m1 (gstm1) is one of the genes involved in detoxification of endogenous ...
The Material Point Method (MPM) has been very successful in providing solutions to many challenging problems involving large deformations. Nevertheless there are some important issues that remain to be resolved with regard to its analysis. One key challenge applies to both MPM and Particle in Cell (PIC) methods and arises from the difference between the number of particles and the number of the...
Magnetic flux measurements of a toroidal magnet revealed a concave-shaped field distribution with a single minimum and a null field along the axis of the torus at the point where the field reversed. The non-linear magnetic field of the toroidal magnet perpendicular to the Ag2O-doped superconducting disc sample with trapped magnetic flux distorted the field line distribution. As a result, the in...
background: endometriosis is one of the most commonly encountered benign problems in gynaecology. it is frequently associated with chronic pelvic pain, dysmenorrhoea, menorrhagia and dyspareunia, which lead to infertility. we determined the possible association between cyp1a1 mspi and gstm1 null polymorphism in the pathogenesis of endometriosis. materials and methods: ninety seven cases of endo...
‎The problem of shrinkage testimation (test-estimation) for the Rayleigh scale‎ ‎parameter θ based on censored samples under the reflected‎ ‎gamma loss function is considered‎. We obtain the minimum risk‎ ‎estimator among a subclass and compute its risk‎. ‎A shrinkage‎ ‎testimator based on acceptance or rejection of a null hypothesis&lr...
Interferometric synthetic aperture radar (IFSAR) extends the two-dimensional imaging capability of traditional synthetic aperture radar to three-dimensions by using an aperture in the elevation plane to estimate the 3-D structure of the target. The operation of this additional aperture can be viewed from a null-steering point of view, rather than the traditional phase determination point of vie...
OBJECTIVES/HYPOTHESIS Persistent direction-changing positional nystagmus (DCPN) during the supine head-roll test is a typical finding of cupulopathy. The aim of this study was to introduce a simple method of evaluating patients with cupulopathy (light cupula and heavy cupula), which is performed in a seated position, and investigate its diagnostic utility and use for lateralization. STUDY DES...
In response to the widespread abuse and misinterpretation of significance tests of null hypotheses, some editors and authors have strongly discouraged P values. However, null P values still thrive in most journals and are routinely misinterpreted as probabilities of a "chance finding" or of the null, when they are no such thing. This misuse may be lessened by recognizing correct Bayesian interp...
The interpretation of tests of a point null hypothesis against an unspecified alternative is a classical and yet unresolved issue in statistical methodology. This paper approaches the problem from the perspective of Lindley’s Paradox: the divergence of Bayesian and frequentist inference in hypothesis tests with large sample size. I contend that the standard approaches in both frameworks fail to...
We consider statistical inference on a single component of a parameter vector that satisfies a finite number of moment inequalities. The null hypothesis for this single component is given a dual characterization as a composite hypothesis regarding point identified parameters. We also are careful in the specification of the alternative hypothesis that also has a dual characterization as a compos...
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