Fractional order stability of systems

This paper investigates and offers some stability analysis methods for systems of non-integer orders. Well known analysis methods such as Hurwitz, interlacing property, monotonic phase increment property are reconsidered in a fractional order way of thinking. A method to find the roots of the so-called fractional order polynomials is proposed and Hurwitz-like stability of the pseudo-polynomials is investigated. Effectiveness of the interlacing property and outcomes of the monotonic phase increment property for fractional order case is shown. Results are comparatively proved and illustrated clearly. © 2017 IEEE.Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme [LO1303 (MSMT-7778/2014)]; European Regional Development Fund under the project CEBIA-Tech [CZ.1.05/2.1.00/03.0089

Thrombocyte Alterations in Pregnant Women with Gestational Diabetes Mellitus

Objective: Inflammation and its complications might develop in patients diagnosed with diabetes mellitus. It is shown that number, shape and functions of thrombocytes are important for development and prediction of inflammatory process. We aimed to show the changes of number, morphology and functions of platelets in the patients with gestational diabetes mellitus. study design: In a retrospective study, 928 cases in 24-28th weeks of gestation followed regularly in the same clinic were included. We performed 75g oral glucose tolerance test to all cases. Mean platelet volume, platelet distribution width and plateletcrit values of the cases with and without gestational diabetes mellitus according to American Diabetes Association criteria were compared to evaluate the platelet count, morphology, functions and activity. Results: Platelet count and plateletcrit values of cases were significantly higher in the patients with gestational diabetes mellitus. No significant differences were found between the cases with and without gestational diabetes mellitus in mean platelet volume and platelet distribution width values. Conclusion: There is tendency to inflammation in GDM and platelets are part of inflamatuary process in human metabolism. Our findings show that, platelets are affected in GDM. We believe that further studies in this subject will help understanding of pathophysiology of GDM

False-positive reaction between syphilis and hepatitis C infection

There are limited data about false-positive reactions against hepatitis C virus (HCV) in syphilitic patients and false-positive reactions against syphilis in the patients with HCV infection, The aim of this study was to demonstrate the false-positivity of syphilis in patients with HCV infection, the false-positivity of anti-HCV in patients with syphilis and the validity of the serological tests in such patients. Fifty patients with positive anti-HCV, 21 patients with positive VDRL and 50 healthy subjects were studied. Syphilis serology was determined by the Venereal Disease Research Laboratory (VDRL) test and microhemagglutination for T. pallidum (MHA-TP) test. Hepatitis C serology was determined by a second generation ELISA (Ortho Diagnostics) test for HCV antibody, and anti-HCV positive patients were tested for HCV RNA by polymerase chain reaction (PCR). All assays were performed on all subjects. Not only the false-positive VDRL reaction in the patients with HCV infection but also false-positive anti-HCV tests in syphilitic patients have been observed. Four patients with syphilis had positive anti-HCV and negative HCV-RNA, whereas 10% (5 of 50) of patients with hepatitis C infection had positive VDRL and these patients were negative for MHA-TP test, The rates of false-positivity of VDRL and anti-HCV were higher than within the control group (p<0.05). According to these data, positive anti-HCV in syphilitic patients and positive VDRL in chronic hepatitis C may be false-positive results with regard to the reaginic tests, Therefore, therapeutic measures should not be initiated without confirmation with a treponemal test or PCR. VDRL and HCV-ELISA tests may be interacted with IgM or IgG antibodies. This relationship should be investigated in further studies

Urinary Incontinence in Premenopausal Women: Prevalence, Risk Factors and Impact on Quality of Life

WOS: 000342624600005PubMed: 26663597ObjectivesTo determine the prevalence and risk factors of urinary incontinence (UI), and assess its impact on the quality of life (QOL) in premenopausal women. MethodsIn this cross-sectional study, 690 women aged from 18 to 53 were interviewed using a demographic questionnaire and the International Consultation on Incontinence Questionnaire Short Form. ResultsThe overall prevalence of any UI was 27.2%. of the 188 women reporting UI the types were: stress 36.7%, urgency 32.4% and mixed 30.9%. the mean value of the age and body mass index (BMI) of the cases with UI was statistically significantly higher than the group without UI (P35years had an odds ratio of 1.896 (95% confidence interval [CI]:1.29-2.80); the effect of the status of not attending a school or only attending primary school had an odds ratio 1.839 (95% CI: 1.23-2.75) and the number of pregnancies>2 had an odds ratio 1.495 (95% CI:1.00-2.26). ConclusionBeing older than 35, having a low educational level and a gravida greater than two are the independent risk factors in terms of the occurrence of UI in premenopausal women

Adolescents with asthma reported more peer victimization, more anger repression, and less anger expression

Objective:The aim of this study was to investigate the peer victimization and anger expression in adolescents with asthma. The relationship between asthma control and psychological features was also examined. Methods:The study was a cross-sectional study with a healthy control group. The sample of the study was composed of 61 adolescents who were previously diagnosed by a physician with asthma of various intensities. Sixty adolescents with no chronic disorders were enrolled as the control group. Peer victimization was examined using the Multidimensional Peer Victimization Scale (MPVS). The State-Trait Anger Expression Inventory (STAXI) was used to assess anger expression styles. Emotional and behavioral symptoms of the adolescents were measured using the Strengths and Difficulties Questionnaire (SDQ). Results:Adolescents with asthma reported more peer victimization in the subscales of physical, social, verbal, attacks on property, and frightening in the MPVS; and having more problems in emotional, social, and peer relations areas in the SDQ (p < .001 for all subscales) compared to the control group. The results were similar between the groups regarding the conduct problems and hyperactive behaviors. The adolescents with asthma reported more anger repression and less anger expression than the control group (p < .001 for both subscales). Conclusions:The results indicated that the adolescents with asthma were subjected to more peer victimization and experienced more difficulties in anger expression than the controls. Based on the findings of this study, we suggest that these psychological factors should be kept in mind during the management of asthma in adolescents

Effects of Long-Term Training Program on Static and Dynamic Balance in Young Subjects

Purpose: The purpose of this study was to examine the efficacy of a long-term training program of 10 weeks on static and dynamic balance parameters in a young healthy population. Methods: Participants were 35 young healthy female subjects. Balance measurements were done using the Flamingo Balance Test (FBT) for static balance and the Star Excursion Balance Test (SEBT) for dynamic balance. Results: Dynamic balance points increased and static balance points decreased after a 10 week training protocol compared with before training, indicating improvement in both dynamic and static balance. Conclusions: These results indicate that long term training resulted in an improvement both static and dynamic balance. Training can be suggested for patients with balance problems

Lower Urinary Tract Symptoms and Urinary Incontinence During Pregnancy

WOS: 000374988000007PubMed: 27111624Objective: Lower urinary tract symptoms (LUTS) can frequently be seen in pregnant women. Pregnancy and delivery have been considered as risk factors in the occurrence of pelvic floor dysfunction and determinants of LUTS. the main associated risk factor is parity. in the present study, we aim to determine the frequency of LUTS and urinary incontinence (UI) during pregnancy and the associated risk factors. Methods: This prospective study was carried out in a total of 250 women during their 28- and 40-gestational week checks. the Urinary Distress Inventory-6, the Incontinence Impact Questionnaire-7, and International Consultation on Incontinence Questionnaire-Short Form were used to determine LUTS and its effect on quality of life. Results: the mean age and gestational age of the participants were 29.41 +/- 5.70 year (range 18-44) and 35.45 +/- 2.98 weeks (range 28-40), respectively. the prevalence of LUTS was 81.6%. the prevalence of UI during pregnancy was 37.2%. Stress urinary incontinence, urge urinary incontinence and mixed urinary incontinence were diagnosed as 15.6, 4.8 and 16.8%, respectively. We found that advanced age, smoking and multiparity were risk factors associated with incontinence. Incontinence reduced pregnant women's quality of life. Conclusions: Lower urinary tract symptoms are commonly seen among pregnant women and these symptoms negatively affect the quality of life of pregnant women. Advanced age, smoking and multiparity were risk factors associated with urinary incontinence and LUTS. Obstetricians should be on the lookout for individual urological problems in pregnancy. Resolving any urological issues and cessation of smoking for the affected individuals will help alleviate the problem