BACKGROUND The coronavirus disease 2019(COVID-19)pandemic impacted in a still undefined way pregnant women’s mental health.There are reports of mood and affect changes in the general population and the suggestion tha...BACKGROUND The coronavirus disease 2019(COVID-19)pandemic impacted in a still undefined way pregnant women’s mental health.There are reports of mood and affect changes in the general population and the suggestion that similar changes occur also in the pregnant population.The greater vulnerability of women during the COVID-19 restriction period may translate into a greater risk for mental disorders in the gestational period.We hypothesised that pregnant women in the prepandemic period would have less psychopathology and more psychological support than pregnant women during the pandemic restriction period.AIM To compare pregnant women for anxiety,prenatal depression,psychopathology,and social support before and after the awareness of the pandemic.METHODSWe administered to women willing to participate in their 2nd-3rd trimesters of pregnancy theEdinburgh Postnatal Depression Scale(EPDS),the State-Trait Anxiety Inventory Form Y(STAI-Y),and the Symptom CheckList-90-Revised(SCL-90R);we further collected sociodemographicvariables and explored women’s social support.The comparison was cross-sectional.The firstsample was termed nonCOVID-19 because data were gathered before the COVID-19 outbreak(January 2020-February 2020)was declared,and the second sample termed COVID-19 becauseparticipants were already subjected to the COVID-19-related restrictive measures(January 2021-February 2021).Since normal distribution was not met(Shapiro-Wilk test applied),we appliednonparametric Mann-Whitney’s U-test to compare psychometric tests.Ethical standards were met.RESULTSThe nonCOVID-19 group reported higher support from partners only,while the COVID-19 groupreported multiple support(χ^(2)=9.7181;P=0.021);the nonCOVID-19 group scored higher than theCOVID-19 group only on state anxiety among psychometric scales[STAI-Y1,nonCOVID-19median=39(95%CI:39.19-51.10)vs COVID-19 median=32(95%CI:30.83-38.90);Mann-Whitney’sU=117.5,P=0.00596].Other measures did not differ meaningfully between the two groups.Scoreson the EPDS,the state and tr展开更多
Flexible structure dynamics with collocated force actuators and position sensors lead to negative imaginary （NI） systems. In this paper, the authors study the extension of NI theory to descriptor systems. The author...Flexible structure dynamics with collocated force actuators and position sensors lead to negative imaginary （NI） systems. In this paper, the authors study the extension of NI theory to descriptor systems. The authors derive an NI lemma for descriptor systems. This is done by using the transformation from positive real （PR） system to NI system. Then, the Weierstrass Form transformation was involved to transform A and E matrices to be in a special form. An illustrative example is presented to support the result. Negative imaginary systems, positive real systems, descriptor systems, Negative imaginary lemma.展开更多
主动脉缩窄（coarctation of the aorta,CoA）的产前诊断仍然具有挑战性,并受高频率的假阳性诊断的影响。该项研究的目的是确定相关性强度,并量化不同超声显像数据在预测产前CoA的诊断准确性。方法：检索Medline,Embase,Cinahl和Cochran...主动脉缩窄（coarctation of the aorta,CoA）的产前诊断仍然具有挑战性,并受高频率的假阳性诊断的影响。该项研究的目的是确定相关性强度,并量化不同超声显像数据在预测产前CoA的诊断准确性。方法：检索Medline,Embase,Cinahl和Cochrane数据库,进行系统评价和荟萃分析。结果：共检索文章794篇,展开更多
This study supports the importance o f regulatory role of the E2in growth hormone secretion in wom en with polycystic ovary syndrome,showing for the firs t time a different weight-related sensitivity of the g rowth-ho...This study supports the importance o f regulatory role of the E2in growth hormone secretion in wom en with polycystic ovary syndrome,showing for the firs t time a different weight-related sensitivity of the g rowth-hormone axis to hypoestrogenism induced by gonadotropin-releasing hor-mone agonist.展开更多
文摘BACKGROUND The coronavirus disease 2019(COVID-19)pandemic impacted in a still undefined way pregnant women’s mental health.There are reports of mood and affect changes in the general population and the suggestion that similar changes occur also in the pregnant population.The greater vulnerability of women during the COVID-19 restriction period may translate into a greater risk for mental disorders in the gestational period.We hypothesised that pregnant women in the prepandemic period would have less psychopathology and more psychological support than pregnant women during the pandemic restriction period.AIM To compare pregnant women for anxiety,prenatal depression,psychopathology,and social support before and after the awareness of the pandemic.METHODSWe administered to women willing to participate in their 2nd-3rd trimesters of pregnancy theEdinburgh Postnatal Depression Scale(EPDS),the State-Trait Anxiety Inventory Form Y(STAI-Y),and the Symptom CheckList-90-Revised(SCL-90R);we further collected sociodemographicvariables and explored women’s social support.The comparison was cross-sectional.The firstsample was termed nonCOVID-19 because data were gathered before the COVID-19 outbreak(January 2020-February 2020)was declared,and the second sample termed COVID-19 becauseparticipants were already subjected to the COVID-19-related restrictive measures(January 2021-February 2021).Since normal distribution was not met(Shapiro-Wilk test applied),we appliednonparametric Mann-Whitney’s U-test to compare psychometric tests.Ethical standards were met.RESULTSThe nonCOVID-19 group reported higher support from partners only,while the COVID-19 groupreported multiple support(χ^(2)=9.7181;P=0.021);the nonCOVID-19 group scored higher than theCOVID-19 group only on state anxiety among psychometric scales[STAI-Y1,nonCOVID-19median=39(95%CI:39.19-51.10)vs COVID-19 median=32(95%CI:30.83-38.90);Mann-Whitney’sU=117.5,P=0.00596].Other measures did not differ meaningfully between the two groups.Scoreson the EPDS,the state and tr
文摘Flexible structure dynamics with collocated force actuators and position sensors lead to negative imaginary （NI） systems. In this paper, the authors study the extension of NI theory to descriptor systems. The authors derive an NI lemma for descriptor systems. This is done by using the transformation from positive real （PR） system to NI system. Then, the Weierstrass Form transformation was involved to transform A and E matrices to be in a special form. An illustrative example is presented to support the result. Negative imaginary systems, positive real systems, descriptor systems, Negative imaginary lemma.
文摘主动脉缩窄（coarctation of the aorta,CoA）的产前诊断仍然具有挑战性,并受高频率的假阳性诊断的影响。该项研究的目的是确定相关性强度,并量化不同超声显像数据在预测产前CoA的诊断准确性。方法：检索Medline,Embase,Cinahl和Cochrane数据库,进行系统评价和荟萃分析。结果：共检索文章794篇,
文摘This study supports the importance o f regulatory role of the E2in growth hormone secretion in wom en with polycystic ovary syndrome,showing for the firs t time a different weight-related sensitivity of the g rowth-hormone axis to hypoestrogenism induced by gonadotropin-releasing hor-mone agonist.
