In this study, the effects of room temperature static strain aging period on the tensile properties of DP600 dual-phase steel were investigated. 6% and 12% of pre-strained DP600 steels were carried out static strain aging treatment at room temperature for up to 4 months. It was observed that with increasing both pre-strain rate and room temperature static aging period, the tensile strength values increased and ductility values decreased significantly. Also, dual-phase steels maintain the continuous yield behaviour which is general characteristic. The fracture surfaces exhibited a lower depth dimple type mode with increasing room temperature static strain aging period.
Objective To evaluate whether placental protein-13 (PP-13) measured in the
serum of pregnant women could predict abnormal invasive placentation (AIP)
detected by color Doppler ultrasound (US) and magnetic resonance imaging scan in
addition to the routine US scan during the third trimester.
Materials and methods The prospective case-control study included patients
subdivided in 2 groups: 42 pregnant women with a singleton pregnancy at
28–32 weeks of gestation with only suspected AIP, and 32 healthy
pregnant women. The serum PP-13 levels were measured in both groups using an
enzyme-linked immunosorbent assay (ELISA) method and statistically compared. The
cases of AIP were confirmed by placental histopathological examination
and/or the uterus removed by hysterectomy after elective caesarean
section.
Results Serum PP-13 levels of pregnant women with AIP were significantly
higher (p<0.001) than those of controls (650.32±387.33 vs.
231.43±94.33). Statistical analysis of maternal serum PP-13 levels above
the threshold of 312 pg/ml (measured in the early third trimester)
predicted AIP with 76.2% sensitivity and 75% specificity.
Conclusion Maternal serum PP-13 may have a role in the pathophysiology of
AIP owing to its high serum value in the AIP group. The maternal serum dosage of
PP-13 levels could improve pregnancy management in those patients suspected of
having AIP.
Aim: The term premenstrual syndrome (PMS) is used to define somatic, cognitive, emotional, and
behavioural disorders that emerge during the luteal phase of the menstrual cycle and rapidly recover
with the onset of menstruation. The aim of this study was to investigate PMS symptoms in women who
were sensitive psychosocially because of pandemic restrictions.
Material and Methods: The study included a total of 187 women aged 18-50 years who presented at
the Gynaecology and Obstetrics Department of Turhal State Hospital between June 2021 and August
2021. The women were separated into two groups as 66 who had contracted and recovered from
COVID-19 infection within the previous 6 months and 121 who had not had COVID-19 infection. The
PMS Scale was applied to all the patients.
Results: The rates of complaints of changes in appetite (p=0.004), depressive mood (p=0.002),
depressive thoughts (p=0.001), fatigue (p=0.001), changes in sleep (p=0.002), anxiety (p=0.036) and
menstrual irregularity (p=0.003) were determined to be statistically significantly higher in the COVID-19
group compared to the group that had not had COVID-19.
Conclusion: The PMS complaints of changes in appetite, depressive mood, depressive thoughts,
fatigue, changes in sleep, anxiety and menstrual irregularity were experienced more in the women who
had had COVID-19. Therefore, the PMS complaints of women during the COVID-19 pandemic should
be listened to carefully and it must be taken into consideration that these can be more significant in
patients who have contracted COVID-19 infection. .
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