نتایج جستجو برای: fragile control
تعداد نتایج: 1341839 فیلتر نتایج به سال:
Fragile X positive, mentally retarded males have been shown to have an insertion or amplification of DNA sequences at, or close to, the site of expression of the fragile site. We show here the application of the detection of such changes to the diagnosis of affected males and female carriers and the identification of normal transmitting males. One fragile X negative male with the clinical featu...
Fragile X syndrome, second only to Down syndrome among etiologies of mental retardation, was discussed. Clinical, intellectual, and anthropometric characteristics from 67 fragile X positive males, 35 fragile X positive females, and 27 obligate carriers among 29 families was presented. Regression analysis showed little correlation between level of intellect and frequency of fragile sites. The me...
Patient Selection Criteria Coverage eligibility will be considered for fragile X mental retardation 1 (FMR1) mutations the following patient populations: Individuals of either sex with intellectual disability, developmental delay, or autism spectrum disorder (see Policy Guidelines ◊ ). Prenatal testing of fetuses of known carrier mothers (see Policy Guidelines ◊ ). Affected individuals or...
We describe the case of a 6-year-old boy with both fragile X syndrome and Robertsonian Translocation (45, XY, der (13; 22) (q10; q10)). This is the first reported case of a patient with fragile X syndrome with this Robertsonian translocation. Facial features and macroorchidism were consistent with fragile X syndrome. Cognitive impairment is more significant than in his sibling with fragile X sy...
Chromosome results obtained from 1012 patients referred with developmental delay without known cause within the three years 1985 to 1987 are reported. G banding analysis and assessment of 70 cells for fragile X gave abnormal results in 84 cases: fragile X in 31 patients and other abnormalities in 53 patients. A further 16 sibs expressing the fragile X were detected in family studies originating...
The preliminary results of an international collaborative study examining premature menopause in fragile X carriers are presented. A total of 760 women from fragile X families was surveyed about their fragile X carrier status and their menstrual and reproductive histories. Among the subjects, 395 carried a premutation, 128 carried a full mutation, and 237 were noncarriers. Sixty-three (16%) of ...
This paper deals with the quadratic stabilization of discrete-time LTI systems using state-feedback controllers with bounded coefficients. The controllers are guaranteed to be non-fragile with respect to additive or multiplicative implementation errors. The approach is based on robust-control tools and LMIs. Finally, an example is given in order to illustrate the effectiveness of the approach.
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