Background
The impact of lifestyle factors such as adiposity, smoking, stress, exercise, and nutrition on anti-Müllerian hormone (AMH) levels remains an unresolved question.
Aims
This study aims to ...examine the anthropometric and lifestyle characteristics of women undergoing infertility investigations and to examine the relationship between serum AMH levels and body fat percentage, body mass index (BMI), and lifestyle factors including smoking, alcohol intake, nutrition, exercise, and stress.
Methods
Only women undergoing infertility investigations were included in the study. Those with a diagnosis of polycystic ovary syndrome (PCOS) were excluded. Body fat percentage was measured using the Tanita Body Composition Monitor and BMI calculated. Lifestyle factors were evaluated using the Simple Lifestyle Indicator Questionnaire (SLIQ).
Results
Ninety-six women took part in the study. Of these, 35.4% (
n
= 34) were obese, and 28.1% (
n
= 27) were overweight according to their BMI. According to body fat percentage, 47.9% (
n
= 46) were classified as obese. An “unhealthy “ SLIQ score was measured in 25% (
n
= 24) of participating women. There was no relationship between AMH and anthropometric or lifestyle factors, namely, body fat percentage (
B
= − 0.11,
p
= 0.76), BMI (
B
= − 0.14,
p
= 0.76), smoking currents smokers (
B
= − 1.86,
p
= 0.56), ex-smoker (
B
= 3.07,
p
= 0.41), SLIQ score (
B
= 0.1.96,
p
= 0.29), stress (
B
= 0.12,
p
= 0.96), exercise (
B
= − 0.94,
p
= 0.77), alcohol (
B
= − 0.94,
p
= 0.77), or nutrition (
B
= − 3.14,
p
= 2.44).
Conclusions
Body fat percentage, BMI, lifestyle choices, and high stress levels do not correlate with AMH levels in women seeking infertility investigations. We identified a high incidence of obesity and low levels of healthy lifestyle scores in our study population. Our study highlights the urgent need for patient education and optimization of pre-pregnancy health.
The paper presents the theoretical design fundamentals for a wireless power transmission system (WPT) with reactive components (inductance and capacitance) of oscillators connected in series both in ...transmission and reception systems. The equations of the mutually coupled oscillating circuits and relevant electrical parameters related to the sizing of the wireless system are presented and calculated. At the same time, several variants of electrical diagrams of the emission system were designed and simulated.
Atrial fibrillation (AF) is the most common sustained arrhythmia in clinical practice. The increasing evidence supports links between inflammation and AF. There is evidence showing that obesity is a ...major cause of adipose tissue (AT) inflammation. Ghrelin (GHRL), through its growth hormone secretagogue receptor (GHS-R) present on adipose tissue macrophages (ATMs), could modulate AT inflammation.
Our study aimed to evaluate the role of adipose tissue macrophages (ATMs) and their GHS-R in adipose tissue samples of right atrial appendages (RAA) biopsies.
We obtained RAA biopsies from 10 obese patients, undergoing cardiac surgery for coronary artery bypass graft (CABG) and developing postoperative atrial fibrillation (POAF). The epicardial tissue samples were examined using immunohistochemistry to visualize and quantify CD68 and GSH-R expression of the ATMs.
Histologically, the mean adipocyte diameter (MAD) of epicardial adipose tissue (EAT) was larger in EAT samples with inflammation as compared to EAT without inflammation (84.2 µm
. 79.6 µm). The expression of CD68 was lower in EAT without inflammation as compared to EAT with inflammation in adipose tissue samples. Similarly, the expression of GSH-R was lower in EAT samples without inflammation as compared to EAT samples with inflammation in adipose tissue.
Increased epicardial fat area, macrophage infiltration, and GHS-R expression in epicardial ATMs appeared to be associated with postoperative atrial fibrillation in obese patients.
We present shear wave splitting measurements from 5 earthquakes that occurred in the Vrancea seismic zone of the Carpathian Arc. S waves from these events, all with magnitudes >
5.4
M
w and deeper ...than 88
km, were recorded at broadband stations of the Global Seismic Network, and the Geoscope and Geofon Networks, and used by us to measure shear wave splitting corrected for sub-station splitting and anisotropy. In order to carry out these corrections we used published shear wave splitting parameters, thus isolating contributions to observed splitting from the Vrancea source region and upper mantle surrounding the Carpathian Arc. The resulting 32 good observations of source-side shear wave splitting, along with 54 null splitting observations (which yield two potential splitting directions) clearly show that upper mantle anisotropy is strongly variable in the region of the tightly curved Carpathian Arc: shear waves taking off from Vrancea along paths that sample the East and Southern Carpathians have fast anisotropy axes parallel to these ranges, whereas those leaving the source region to traverse the upper mantle beneath the Transylvanian Basin (i.e., mantle wedge side) trend NE–SW. Shear waves sampling the East European and Scythian Platforms are separable into two groups, one characterized by fast shear trends to the NE–SW, and a second, deeper group, with trends to NW–SE; also, the majority of null splits occur along paths leaving Vrancea in these NE–E azimuths. We interpret these results to indicate the presence of at least three distinct upper mantle volumes in the Carpathians region: the upper mantle beneath the Carpathian Arc is strongly anisotropic with fabrics parallel to the local arc strike; the Transylvanian Basin upper mantle fabrics trend NE–SW; and the anisotropy beneath the westernmost East European Platform may be characterized by a shallow NW–SE trending fabric concentrated in the cratonic lithosphere of the East European Platform, and a second, deeper fabric with E–W trend marking asthenospheric flow beneath the craton's base. This more complex anisotropy beneath the western edge of the East European Platform would account for both the variability of observed splitting of waves that sample this volume, and also the strong prevalence of nulls observed along eastward-departing azimuths.
The content of the paper presents the virtual construction of an electric propulsion system from the source to synchronous motor with variable speed which drives the propeller. The variable speed of ...the propeller is obtained by changing the frequency of the supply voltage produced by the cycloconverters (12 pulses). Electric propulsion system simulation with cycloconverter is made in Matlab Simulink, which highlights the characteristics of the synchronous motor used in naval propulsion.
We used cross-correlation of ambient seismic noise recorded in the Chile Triple Junction (CTJ) region to estimate interstation surface wave time-domain Green's functions, and then inverted ...traveltimes to obtain crustal surface wave velocity models. Interstation distances within the Chile Ridge Subduction Project (CRSP) temporary seismic network ranged from 40 to ∼100 km. We selected 365 d, and cross-correlated and stacked 24 hr of vertical component data at 38 stations pairs, resulting in nominally 703 traveltimes along assumed-straight interstation paths. Velocities in 2-D cells of 30 km × 30 km were calculated using a linear least-squares inversion of the Rayleigh wave group velocity traveltimes. Furthermore we performed a Rayleigh wave group velocity dispersion analysis to estimate the sensitivity of different period waves at depth and to calculate a 3-D shear velocity model of the Patagonian crust. The process was applied to cross correlation pairs determined in two period bands, 5–10 s, corresponding to shallow crustal velocities down to approximately 10 km depth, and 10–20 s, for velocities down to around 20 km. Our results show that cell velocities correlate well with known geological features. We find high-crustal velocities where the Patagonian Batholith outcrops or is likely present at depth, and low velocities correlate with the active volcanic arc of the Southern Volcanic Zone and the subducted Chile ridge in Taitao peninsula, where thermal activity of hot springs is present. High velocities in the mountainous portions of the southeastern study area appear to correlate with outcropping older metamorphic units. Low velocity in the east correlate with sequences of volcaniclastic deposits.
The content of the paper presents the virtual construction of an electric propulsion system from the source to synchronous motor with variable speed which drives the propeller. The variable speed of ...the propeller is obtained by changing the frequency of the supply voltage produced by the cycloconverters (12 pulses). Electric propulsion system simulation with cycloconverter is made in Matlab Simulink, which highlights the characteristics of the synchronous motor used in naval propulsion.
The Carpathians–Pannonian Basin system provides a natural laboratory for analysing lithospheric to surface controls on tectonic topography development in a coupled source-to-sink environment. To link ...processes taking place at depth and at the surface, recent research focused on the interplay between basin evolution, active tectonics, topography evolution and intraplate folding mechanisms. Neotectonic processes control landscape development and natural hazards, in particular the seismicity, during the late-stage (Late Neogene–Quaternary) evolution of both the Carpathians–Pannonian Basin system and its interaction with the adjacent Dinarides and Balkans. The deep structure of the SE Carpathians exerts a strong control on the post-collisional evolution of the system. New constraints are available from seismic tomography, deep seismic reflection and refraction profiling and detailed studies of the Vreancea seismicity. Inherited orogenic fabric and structure of the active Black Sea sink has a strong influence on the localisation of the Neogene sediment pathways. A close relationship has been established between the timing and mechanisms of stress changes in the Pannonian and Transylvania basins and structural episodes in the surrounding thrust belts, pointing to an intrinsic mechanical coupling with these basins, the orogen and its foredeep. Basin inversion taking place during the Pliocene–Quaternary times in the entire Carpathians–Pannonian system is related to changes in the regional stress field leading to differential vertical movements associated with a laterally variable folding mechanism active in the entire system. Short, crustal folding patterns alternate with lithospheric wavelengths in the SE Carpathians foreland, East and South Carpathians, Transylvania and Pannonian basins. The lateral variability is the result of a marked contrast in rheology between these areas, directly related to the crustal configuration, thermal properties and late-stage collision kinematics with the Carpathians foreland. Lateral variations in the properties of the downgoing plates largely control the collision mode in the Carpathians and the post-collisional evolution of the entire system.
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