The Need for Near-Earth Multi-Spacecraft Heliospheric Measurements and an Explorer Mission to Investigate Interplanetary Structures and Transients in the Near-Earth Heliosphere.

Based on decades of single-spacecraft measurements near 1 au as well as data from heliospheric and planetary missions, multi-spacecraft simultaneous measurements in the inner heliosphere on separations of 0.05-0.2 au are required to close existing gaps in our knowledge of solar wind structures, transients, and energetic particles, especially coronal mass ejections (CMEs), stream interaction regions (SIRs), high speed solar wind streams (HSS), and energetic storm particle (ESP) events.

The association between sleep disturbances and blood pressure variability: a review of the literature.

Study Objectives: Sleep disturbances are an underrecognized public health issue that results in various adverse outcomes and disturbed quality of life. Blood pressure variability (BPV) is an emerging entity in assessing cardiovascular disease risk and accumulating evidence suggests that BPV is closely associated with end-organ damage. This review aims to explore the association between sleep disturbances and BPV.

Copper(II) and zinc(II) complexation with -ethylene hydroxycyclams and consequences on the macrocyclic backbone configuration.

We report a series of four cyclams and cross-bridged cyclams, -functionalized by one hydroxyethyl arm, which may incorporate additional methyl(s) group(s). The Cu(II) and Zn(II) complexes of these ligands were synthesized and fully characterized. The investigation of the metal complexes in solid-state and in solution was carried X-ray diffraction, NMR, EPR, absorption spectroscopy and DFT calculations.

Epidemiology and management of hypertension among refugees in the Middle East: a review of the literature.

This review aims to explore the burden of hypertension among refugees in the Middle East by reporting its prevalence, risk factors and access to care. A comprehensive literature search was performed using Web of Science, Ovid MEDLINE, PubMed, SCOPUS, CINHAL+, WHO Regional Office for the Eastern Mediterranean (EMRO) and United Nations High Commissioner for Refugees (UNHCR) on articles spanning from 1948 until 2020. Most studies were cross-sectional in design.

Application of Doehlert experimental design for the removal of radium from aqueous solution by cross-linked phenoxycalix[4]pyrrole-polymer using Ba(II) as a model.

Ra-226 is a naturally occurring radionuclide that is derived from uranium-238 series, and it is present at low concentrations in rocks, soil, and groundwater. Many efforts have been exerted for the decontamination of radium from aqueous media in order to meet the increasing water demand of the population. To this aim, a new polymer based on cross-linked phenoxycalix[4]pyrrole was designed and employed in solid/liquid extractions in order to remove radium from aqueous solutions.