Experiments and Modeling of Three-Dimensionally Printed Sandwich Composite Based on ULTEM 9085.

This article presents the concept, research, and modeling of a sandwich composite made from ULTEM 9085 and polycarbonate (PC). ULTEM 9085 is relatively expensive compared to polycarbonate, and the composite structure made of these two materials allows for maintaining the physical properties of ULTEM while reducing the overall costs. The composite consisted of outer layers made of ULTEM 9085 and a core made of polycarbonate.

The spatial distribution of potentially toxic elements in the mountain forest topsoils (the Silesian Beskids, southern Poland).

Progressive industrialisation and urbanisation in recent decades have dramatically affected the soil cover and led to significant changes in its properties, which inevitably affect the functioning of other components of the forest ecosystems. The total content of Pb, Cd, Zn, Fe, Cr, Cu, Ni, As, and Hg was studied in twenty-five plots at different heights in the topsoil (organic and humus horizons) formed from the Carpathian flysch in the area of the Silesian Beskids (Western Carpathians). The aim of this article is to analyse the spatial distribution of potentially toxic elements in the mountain forest topsoil in different types of plant communities and to determine the relationship between altitude and potentially toxic elements contamination.

The follicular output rate in normo-ovulating women undergoing ovarian stimulation is increased after unilateral oophorectomy.

Study Question: Does unilateral oophorectomy modify the antral follicular responsiveness to exogenous FSH, assessed by the Follicular Output RaTe (FORT) in normo-ovulating women?

Summary Answer: Antral follicle responsiveness to exogenous FSH, as assessed by the FORT index, is significantly higher in women with a single ovary in comparison with the ipsilateral ovary of age-matched controls.

What Is Known Already: Growing evidence indicates that the innovative FORT may be a remarkable tool to evaluate the follicle responsiveness to exogenous FSH, independently of the size of the pretreatment cohort of small antral follicles. It is conceivable that in the unclear compensating mechanisms at play in women having undergone unilateral oophorectomy, an increase in the sensitivity of antral follicles to FSH may be involved.

Relationships between Heavy Metal Concentrations in Greater Celandine ( L.) Tissues and Soil in Urban Parks.

Anthropogenic ecological ecosystems create favourable conditions for the growth of the nitrophilous medicinal species in six urban parks in Southern Poland. This study focuses on the concentrations of trace elements in the soils, leaves, stems, and rhizomes of greater celandine. The soil samples were taken only in the humus horizon (A), which averaged approximately 15 cm in thickness under the clumps of .

Reducing bias in risk indices for COVID-19.

Spatiotemporal modelling of infectious diseases such as coronavirus disease 2019 (COVID-19) involves using a variety of epidemiological metrics such as regional proportion of cases and/or regional positivity rates. Although observing changes of these indices over time is critical to estimate the regional disease burden, the dynamical properties of these measures, as well as crossrelationships, are usually not systematically given or explained. Here we provide a spatiotemporal framework composed of six commonly used and newly constructed epidemiological metrics and conduct a case study evaluation.