scholarly journals Quantitative Research of Capillaries in Terminal Villi of Mature Placentae

2010 ◽  
Vol 10 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Zlata Žigić ◽  
Sergije Marković ◽  
Đurđica Grbeša ◽  
Suada Ramić ◽  
Almir Halilović
Keyword(s):  
Pregnant Women ◽  
Surface Area ◽  
Surface Density ◽  
Maternal Age ◽  
Volume Density ◽  
Mean Value ◽  
Capillary Surface ◽  
Terminal Villi ◽  
The Mean ◽  
The Impact

Advanced maternal age is known to be a risk factor for placental dysfunctions. The most common obstetric complications among older women would be considered as follows: gestational diabetes; preeclampsia; placenta praevia; preterm premature rupture of membranes and the risk of preterm delivery. The aims of research were to determine the impact of maternal age on the structure of terminal villi. The study was conducted on 60 human placentae of term pregnancy divided into two groups: the control group (30 placentae in pregnant women of age between 20 and 34) and the experimental group (30 placentae in pregnant women of 35 years of age and older). Stereological methods were applied to determine the volume density, surface density, total volume and total capillary surface area in terminal villi of placenta. The mean value of volume density of capillaries in terminal villi of placentae in older pregnant women is: Vvkks = (0,376 ± 0,033) mm°, and the mean value of total volume is: Vkks = (157,047 ± 25,022) cm3. The mean value of surface density is: Svkks = (64,783 ± 2,543) mm-1, and the mean value of total surface area is: Skks = (29,959 ± 7,873) m2. Volume density of capillaries in terminal villi of placentae is significantly lower in older pregnant women (p<0,001) in comparison to the younger pregnant women. The total volume, surface density and total capillary surface area in terminal villi of placentae are also significantly lower in older pregnant women (p<0,005) in comparison to the younger pregnant women. Statistically significant lower values of volume density, total volume, surface density and total capillary surface area indicate that there is a decreased metabolic transfer between mother and foetus.

Mindfulness and insomnia at pregnancy

2016 ◽  
Vol 33 (S1) ◽  
pp. s269-s269
Author(s):  
M. Marques ◽  
A.T. Pereira ◽  
E. Bento ◽  
S. Xavier ◽  
J. Azevedo ◽  
...  
Keyword(s):  
Anxiety Disorders ◽  
Pregnant Women ◽  
Mean Value ◽  
Inner Experience ◽  
The Mean ◽  
Competing Interest ◽  
Acting With Awareness ◽  
The Impact ◽  
Insomnia Symptoms ◽  
In Pregnancy

IntroductionThe impact of mindfulness in improving insomnia symptoms is documented in different samples (e.g. anxiety disorders; insomnia samples) and mindfulness based programs for pregnancy refer the association between mindfulness development and the reduction of insomnia symptoms/improvement of sleep.ObjectiveTo explore differences in the Facets Mindfulness Questionnaire-10 (FMQ-10; Azevedo et at. 2015), between sleep groups, in Portuguese pregnant women.MethodsFour hundred and nineteen pregnant women (mean age: 32.51 ± 4.759; weeks of gestation: 17.32 ± 4.803) answered the Facets Mindfulness Questionnaire-10 and the Insomnia Assessment Scale (IAS, Marques et al., 2015). Three sleep groups were created considering all the IAS items: good sleepers (no insomnia symptoms; no associated daily impairment); insomnia symptoms groups (one/more insomnia symptoms; no associated daily impairment; exclusion of other conditions/disorders explaining the symptoms); insomniacs (one/more insomnia symptoms; one/more daily associated impairment; exclusion of other conditions/disorders explaining the symptoms).ResultsThere were significant differences in the total FMQ-10 score, the F1/Nonjudging of inner experience and the F2/acting with awareness, between sleep groups [respectively, F (2.402) = 6,933; P = 0.001; F (2.406) = 10.243; P = 0.001; F (2.406) = 37.431; P = 0.002]. Tukey tests indicated that the mean total FMQ-10 and F1/Nonjudging of inner experience scores of good sleepers and insomnia symptoms group were significantly higher than of the insomniacs. The mean value of F2/acting with awareness in the good sleepers was significantly higher than of the insomniacs.ConclusionsIt seems important to develop mindfulness to improve sleep in pregnancy or reduce the impact of insomnia symptoms (common at pregnancy).Disclosure of interestThe authors have not supplied their declaration of competing interest.

scholarly journals Prenatal Mercury Exposure in Pregnant Women from Suriname’s Interior and Its Effects on Birth Outcomes

2020 ◽  
Vol 17 (11) ◽  
pp. 4032 ◽  
Author(s):  
Gaitree K. Baldewsingh ◽  
Jeffrey K. Wickliffe ◽  
Edward D. van Eer ◽  
Arti Shankar ◽  
Ashna D. Hindori-Mohangoo ◽  
...  
Keyword(s):  
Birth Weight ◽  
Pregnant Women ◽  
Household Income ◽  
Maternal Age ◽  
Regression Analyses ◽  
Exact Test ◽  
Live Births ◽  
The Mean ◽  
The Caribbean ◽  
The Impact

Prenatal mercury (Hg) exposure was determined in a sub-cohort of the Caribbean Consortium for Environmental and Occupational Health’s environmental epidemiologic prospective cohort study of pregnant women living in Suriname’s interior. The associations between Hg exposure, low birth weight (LBW, <2500 g) and preterm birth (PTB, <37 weeks) were explored. Correlation analysis, Fisher’s exact test and logistic regression analyses were conducted to evaluate the associations between maternal hair Hg levels and birth weight, LBW and PTB, and between potential confounders, LBW and PTB, respectively. Among 204 singleton births were 198 live births, five stillbirths and one miscarriage. The mean participant age was 26 years; 15.7% of participants had PTBs and 8.1% delivered a child with a LBW. The median hair Hg level was 3.48 μg/g hair. Low hair Hg exposure, based on lowest tertile < 2.34 μg/g, was associated with LBW (OR = 7.2; 95% CI 1.5–35.6; p = 0.015); this association was independent of maternal age, ethnic background, household income and village location, and no correlation was found between hair Hg and PTB. Young maternal age was associated with PTB (RR = 5.09, 95% CI: 1.92–13.85; p = 0.0004) while maternal age was not associated with hair Hg or LBW. The impact of prenatal Hg exposure on pediatric neurodevelopment is currently being evaluated in the infant sub-cohort.

scholarly journals Stereological Analysis of Mature Human Placenta of Pregnant Women of Different Age

2006 ◽  
Vol 6 (2) ◽  
pp. 7-10 ◽  
Author(s):  
Suada Ramić ◽  
Zlata Žigić ◽  
Mirna Alečković
Keyword(s):  
Pregnant Women ◽  
Human Placenta ◽  
Surface Density ◽  
Volume Density ◽  
The Other ◽  
Stereological Method ◽  
Stereological Analysis ◽  
Intervillous Space ◽  
Absolute Volume ◽  
Terminal Villi

The normal placentas, regular pregnancies and deliveries were structurally examined. The aim of this research was to compare the results and to confirm if there were some difference in the structure of placenta related to the age of pregnant women. We examined 30 human placentas. The examined group of women were divided into two groups: 1) pregnant women 20-35 years old; 2) pregnant women over 35 years old. The stereological method was used. The volume density, absolute volume, the surface density and absolute surface of terminal villi of placentas in younger and older pregnant women were not significantly different. The volume density, absolute volume, the surface density and absolute surface of the other placentas villi in younger pregnant women compared to older ones, were significantly increased (p<0.001). The volume density of fibrinoid of placentas in older pregnant women compared to younger ones was significantly increased (p<0.02). The surface density, absolute volume and absolute surface of fibrinoid in these two examined groups of pregnant women were not significantly different. The volume density of intervillous space of placentas in older pregnant women compared to younger ones was significantly increased (p<0.05). Absolute volumes of intervillous space of placentas in these two examined groups of pregnant women are not significantly different.

scholarly journals Perturbation analysis of a variable M/M/1 queue: a probabilistic approach

2006 ◽  
Vol 38 (01) ◽  
pp. 263-283 ◽  
Author(s):  
Nelson Antunes ◽  
Christine Fricker ◽  
Fabrice Guillemin ◽  
Philippe Robert
Keyword(s):  
Power Series ◽  
Busy Period ◽  
Stationary Process ◽  
Probabilistic Approach ◽  
Power Series Expansion ◽  
Mean Value ◽  
Service Rate ◽  
The Mean ◽  
The Impact ◽  
Period Duration

In this paper, motivated by the problem of the coexistence on transmission links of telecommunications networks of elastic and unresponsive traffic, we study the impact on the busy period of an M/M/1 queue of a small perturbation in the service rate. The perturbation depends upon an independent stationary process (X(t)) and is quantified by means of a parameter ε ≪ 1. We specifically compute the two first terms of the power series expansion in ε of the mean value of the busy period duration. This allows us to study the validity of the reduced service rate approximation, which consists in comparing the perturbed M/M/1 queue with the M/M/1 queue whose service rate is constant and equal to the mean value of the perturbation. For the first term of the expansion, the two systems are equivalent. For the second term, the situation is more complex and it is shown that the correlations of the environment process (X(t)) play a key role.

scholarly journals Factors influencing the dental caries in pregnant women: a cross-sectional study

2021 ◽  
Vol 10 (1) ◽  
pp. e32810111226
Author(s):  
Gabriela Bohrer Bolsson ◽  
Jessica Klöckner Knorst ◽  
Marília Cunha Maroneze ◽  
Maísa Casarin ◽  
Patrícia Pasquali Dotto ◽  
...  
Keyword(s):  
Dental Caries ◽  
Pregnant Women ◽  
Basic Research ◽  
Cross Sectional Study ◽  
Mean Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
The Mean ◽  
The City ◽  
Santa Maria

Objective: To assess factors associated with the average number of dental caries in pregnant women. Method: Basic research design: This cross-sectional study was performed between January 2017 and December 2018 in Santa Maria, Brazil. Clinical setting and participants: Multistage random sampling resulted in the recruitment of 256 pregnant women from public health centers across the city. Clinical exams and semi-structured questionnaires including demographic, socioeconomic and behavioral questions were performed by trained interviewers. Main outcome measure: The experience of dental caries was evaluated through the mean value of the Decay, Missing, and Filled Surface Index (DMFS) by 4 trained and calibrated examiners. Multilevel Poisson regression models were used to evaluate the influence of different variables on the average number of dental caries. Rate ratio (RR) and respective 95% confidence intervals were calculated (CI 95%). Results: The prevalence of untreated dental caries was 62.7% in the sample, while the mean DMFS index was 10.27 (± 10.92). Women who smoked during pregnancy had a higher mean DMFS (RR 1.41; 95% CI 1.25-1.57). Furthermore, pregnant women who had poor self-ratings of oral health had a higher average DMFS (RR 1.21; 95% CI 1.10-1.32). Conclusions: The results showed that older age, ethnicity, fewer years in education and the presence of dental plaque resulted in higher means of DMFS.

scholarly journals THE LUCK IN “TALENT VERSUS LUCK” MODELING

2020 ◽  
Vol 23 (03) ◽  
pp. 2050007
Author(s):  
SEAN ELVIDGE
Keyword(s):  
Mean Value ◽  
Maximum Amount ◽  
Random Numbers ◽  
Individual Parameter ◽  
Input Parameters ◽  
The Mean ◽  
Model Variability ◽  
The Impact ◽  
The Relationship

This paper further investigates the Talent versus Luck (TvL) model described by [Pluchino et al. Talent versus luck: The role of randomness in success and failure, Adv. Complex Syst. 21 (2018) 1850014] which models the relationship between ‘talent’ and ‘luck’ on the impact of an individuals career. It is shown that the model is very sensitive to both random sampling and the choice of value for the input parameters. Running the model repeatedly with the same set of input parameters gives a range of output values of over 50% of the mean value. The sensitivity of the inputs of the model is analyzed using a variance-based approach based upon generating Sobol sequences of quasi-random numbers. When using the model to look at the talent associated with an individual who has the maximum capital over a model run it has been shown that the choice for the standard deviation of the talent distribution contributes to 67% of the model variability. When investigating the maximum amount of capital returned by the model the probability of a lucky event at any given epoch has the largest impact on the model, almost three times more than any other individual parameter. Consequently, during the analysis of the model results one must keep in mind the impact that only small changes in the input parameters can have on the model output.

scholarly journals MILES FORMULAE FOR BOOLEAN MODELS OBSERVED ON LATTICES

2011 ◽  
Vol 28 (2) ◽  
pp. 77 ◽  
Author(s):  
Joachim Ohser ◽  
Werner Nagel ◽  
Katja Schladitz
Keyword(s):  
Mean Curvature ◽  
Surface Density ◽  
Euler Number ◽  
Volume Density ◽  
Random Sets ◽  
Boolean Models ◽  
Intrinsic Volumes ◽  
Binary Images ◽  
Density Surface ◽  
The Mean

The densities of the intrinsic volumes – in 3D the volume density, surface density, the density of the integral of the mean curvature and the density of the Euler number – are a very useful collection of geometric characteristics of random sets. Combining integral and digital geometry we develop a method for efficient and simultaneous calculation of the intrinsic volumes of random sets observed in binary images in arbitrary dimensions. We consider isotropic and reflection invariant Boolean models sampled on homogeneous lattices and compute the expectations of the estimators of the intrinsic volumes. It turns out that the estimator for the surface density is proved to be asymptotically unbiased and thusmultigrid convergent for Boolean models with convex grains. The asymptotic bias of the estimators for the densities of the integral of the mean curvature and of the Euler number is assessed for Boolean models of balls of random diameters. Miles formulae with corresponding correction terms are derived for the 3D case.

​Impact of Extreme Hot Environmental Temperature Period on Marker Enzymes of Carbohydrate Metabolism in Non-descript Sheep from Arid Tracts of Rajasthan

2021 ◽  
Author(s):  
Anandita Srivastava ◽  
Nalini Kataria
Keyword(s):  
Carbohydrate Metabolism ◽  
Environmental Temperature ◽  
Age Groups ◽  
Extreme Temperature ◽  
Mean Value ◽  
Marker Enzymes ◽  
Mean Values ◽  
The Mean ◽  
The Impact ◽  
Enzymes Of Carbohydrate Metabolism

Background: The present investigation was envisaged to find out the impact of extreme hot environmental temperature period (ETP) on marker enzymes of carbohydrate metabolism in male and female non-descript sheep of various age groups i.e. 4 to 13 months from arid tracts of Rajasthan. Glucose-6-phosphate dehydrogenase (G-6-PDH) and malate dehydrogenase (MDH) marker enzymes of carbohydrate metabolism were considered for study. Methods: During the period October 2016-June 2017 blood samples were collected to harvest sera for spectrophotometric method from 240 healthy animals selected from private slaughter house during moderate and extreme hot environmental temperature periods (ETPs). The mean values of markers attained during moderate ETP were reckoned as the control. It was 10.00 ± 0.10 UL-1 and 42.00±1.00 respectively. Conclusion: The mean value of MDH was significantly (p≤0.05) higher while G-6-PDH significantly (p≤0.05) lowers during extreme hot temperature in comparison to moderate period. Therefore, it could be concluded that variations in enzyme markers were associated with changes in environmental temperatures. Probably ETP were able to produce a profound effect on carbohydrate metabolism in sheep. Therfore it can be suggested that during the period of extreme temperature balanced ration must be provided to the animal along with proper management to decrease the severity of temperature impact.

KUALITAS HIDUP REMAJA YANG MENGALAMI DISMENORE DI SMK NEGERI 2 SUMEDANG

2018 ◽  
Vol 4 (2) ◽  
pp. 129
Author(s):  
Nadya Puspita Dewi ◽  
Tetti Solehati ◽  
Nur Oktavia Hidayati
Keyword(s):  
Quality Of Life ◽  
Sampling Technique ◽  
Mean Value ◽  
Social Dimension ◽  
Validity And Reliability ◽  
School Activities ◽  
Emotional Dimension ◽  
The Mean ◽  
The Impact

Dysmenorrhea is a pain before or during the menstrual period. The impact of dysmenorrhea are the disruption on physical function, emotional, social and school activities and disruption of quality of life. The study purpose is to detect the quality of life of adolescents with dysmenorrhea.The research method was a quantitative descriptive with total sampling technique to 195 students which selected using dysmenorrhea screening. The data were collected using the pediatric quality of life 4.0 generic module (PedsQL) teens report in Indonesian version which the validity and reliability have been tested. Analysis of data has been done to find out the mean value in each dimension and frequency distribution. The results showed that the mean value of the quality of life of adolescents with dysmenorrhea in general was 62,04 ± 8,15 and 51,8% was in the low. The mean value in physical dimension was 49,36 ± 9,19, emotional dimension was 57,62 ± 13,16, social dimension was 86,38 ± 13,28, and in the school dimension was 62,41 ± 14,77. The quality of life in high categories were in the emotional dimension (60,0%), social dimension (64,1%), and school dimension (60,5%). Meanwhile, the quality of life in low category was in the physical dimension (57,4%). It showed that the quality of life of adolescents with dysmenorrhea in SMK Negeri 2 Sumedang were low. It was recommended to the school and the health office in Sumedang district to provide the reproductive health education, specifically about the prevention and the treatment of dysmenorrhea on adolescents.  

scholarly journals Clinical manifestations and perinatal outcomes of pregnant women with COVID-19: a systematic review and meta-analysis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jeong Yee ◽  
Woorim Kim ◽  
Ji Min Han ◽  
Ha Young Yoon ◽  
Nari Lee ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pregnant Women ◽  
Fetal Death ◽  
Web Of Science ◽  
Meta Analysis ◽  
Clinical Manifestations ◽  
Perinatal Outcomes ◽  
Current Review ◽  
The Mean ◽  
The Impact

Abstract This systematic review and meta-analysis aimed to evaluate the impact of COVID-19 on pregnant women. We searched for qualified studies in PubMed, Embase, and Web of Science. The clinical characteristics of pregnant women with COVID-19 and their infants were reported as means and proportions with 95% confidence interval. Eleven studies involving with 9032 pregnant women with COVID-19 and 338 infants were included in the meta-analysis. Pregnant women with COVID-19 have relatively mild symptoms. However, abnormal proportions of laboratory parameters were similar or even increased, compared to general population. Around 30% of pregnant women with COVID-19 experienced preterm delivery, whereas the mean birth weight was 2855.9 g. Fetal death and detection of SARS-CoV-2 were observed in about 2%, whereas neonatal death was found to be 0.4%. In conclusion, the current review will serve as an ideal basis for future considerations in the treatment and management of COVID-19 in pregnant women.

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